int main(int argc, char** argv) {
    /* OpenCL 1.1 data structures */
    cl_platform_id* platforms;
    cl_program program;
    cl_device_id device;
    cl_context context;
    cl_command_queue queue;
    cl_uint numOfPlatforms;
    cl_int  error;

    cl_mem matrixAMemObj; // input matrix A mem buffer
    cl_mem matrixBMemObj; // input matrix B mem buffer
    cl_mem matrixCMemObj; // input matrix C mem buffer
    cl_int* matrixA;      // input matrix A
    cl_int* matrixB;      // input matrix B
    cl_int* matrixC;      // input matrix C
    cl_uint widthA = WIDTH_G;
    cl_uint heightA = HEIGHT_G;
    cl_uint widthB = WIDTH_G;
    cl_uint heightB = HEIGHT_G;

	{
	    // allocate memory for input and output matrices 
        // based on whatever matrix theory i know.
	    matrixA = (cl_int*)malloc(widthA * heightA * sizeof(cl_int));
	    matrixB = (cl_int*)malloc(widthB * heightB * sizeof(cl_int));
	    matrixC = (cl_int*)malloc(widthB * heightA * sizeof(cl_int));

	    memset(matrixA, 0, widthA * heightA * sizeof(cl_int));
	    memset(matrixB, 0, widthB * heightB * sizeof(cl_int));
	    memset(matrixC, 0, widthB * heightA * sizeof(cl_int));
        
        fillRandom(matrixA, widthA, heightA, 643);
        fillRandom(matrixB, widthB, heightB, 991);
    }

    /*
     Get the number of platforms
     Remember that for each vendor's SDK installed on the computer,
     the number of available platform also increased.
     */
    error = clGetPlatformIDs(0, NULL, &numOfPlatforms);
    if(error != CL_SUCCESS) {
        perror("Unable to find any OpenCL platforms");
        exit(1);
    }
    
    platforms = (cl_platform_id*) alloca(sizeof(cl_platform_id) * numOfPlatforms);
    printf("Number of OpenCL platforms found: %d\n", numOfPlatforms);
    
    error = clGetPlatformIDs(numOfPlatforms, platforms, NULL);
    if(error != CL_SUCCESS) {
        perror("Unable to find any OpenCL platforms");
        exit(1);
    }
    // Search for a GPU device through the installed platforms
    // Build a OpenCL program and do not run it.
    for(cl_int i = 0; i < numOfPlatforms; i++ ) {
        // Get the GPU device
        error = clGetDeviceIDs(platforms[i], CL_DEVICE_TYPE_GPU, 1, &device, NULL);

        if(error != CL_SUCCESS) {
            perror("Can't locate a OpenCL compliant device i.e. GPU");
            exit(1);
        }
        /* Create a context */
        context = clCreateContext(NULL, 1, &device, NULL, NULL, &error);
        if(error != CL_SUCCESS) {
            perror("Can't create a valid OpenCL context");
            exit(1);
        }
        
        /* Load the two source files into temporary datastores */
        const char *file_names[] = {"mmult.cl"};
        const int NUMBER_OF_FILES = 1;
        char* buffer[NUMBER_OF_FILES];
        size_t sizes[NUMBER_OF_FILES];
        loadProgramSource(file_names, NUMBER_OF_FILES, buffer, sizes);
        
        /* Create the OpenCL program object */
        program = clCreateProgramWithSource(context, NUMBER_OF_FILES, (const char**)buffer, sizes, &error);
	    if(error != CL_SUCCESS) {
            perror("Can't create the OpenCL program object");
            exit(1);
	    }
        /* Build OpenCL program object and dump the error message, if any */
        char *program_log;
        const char options[] = "";
        size_t log_size;

        error = clBuildProgram(program, 1, &device, options, NULL, NULL);
	    if(error != CL_SUCCESS) {
            // If there's an error whilst building the program, dump the log
            clGetProgramBuildInfo(program, device, CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
            program_log = (char*) malloc(log_size+1);
            program_log[log_size] = '\0';
            clGetProgramBuildInfo(program, device, CL_PROGRAM_BUILD_LOG,
                                  log_size+1, program_log, NULL);
            printf("\n=== ERROR ===\n\n%s\n=============\n", program_log);
            free(program_log);
            exit(1);
	    }
       
        // Queue is created with profiling enabled 
        cl_command_queue_properties props;
        props |= CL_QUEUE_PROFILING_ENABLE;

        queue = clCreateCommandQueue(context, device, props, &error);

        cl_kernel kernel = clCreateKernel(program, "mmmult", &error);

        matrixAMemObj = clCreateBuffer(context,
                                       CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR,
                                       widthA * heightA * sizeof(cl_int),
                                       matrixA,
                                       &error);

        matrixBMemObj = clCreateBuffer(context,
                                       CL_MEM_READ_ONLY|CL_MEM_COPY_HOST_PTR,
                                       widthB * heightB * sizeof(cl_int),
                                       matrixB,
                                       &error);

        matrixCMemObj = clCreateBuffer(context,
                                       CL_MEM_WRITE_ONLY|CL_MEM_ALLOC_HOST_PTR,
                                       widthB * heightA * sizeof(cl_int),
                                       0,
                                       &error);

        clSetKernelArg(kernel, 0, sizeof(cl_int),(void*)&widthB);
        clSetKernelArg(kernel, 1, sizeof(cl_int),(void*)&heightA);
        clSetKernelArg(kernel, 2, sizeof(cl_mem),(void*)&matrixAMemObj);
        clSetKernelArg(kernel, 3, sizeof(cl_mem),(void*)&matrixBMemObj);
        clSetKernelArg(kernel, 4, sizeof(cl_mem),(void*)&matrixCMemObj);
         
        size_t globalThreads[] = {heightA};
        size_t localThreads[] = {256};
		cl_event exeEvt; 
        cl_ulong executionStart, executionEnd;
		error = clEnqueueNDRangeKernel(queue,
		                               kernel,
		                               1,
                                       NULL,
		                               globalThreads,
                                       localThreads,
                                       0,
                                       NULL,
                                       &exeEvt);
		clWaitForEvents(1, &exeEvt);
		if(error != CL_SUCCESS) {
			printf("Kernel execution failure!\n");
			exit(-22);
		}	

        // let's understand how long it took?
        clGetEventProfilingInfo(exeEvt, CL_PROFILING_COMMAND_START, sizeof(executionStart), &executionStart, NULL);
        clGetEventProfilingInfo(exeEvt, CL_PROFILING_COMMAND_END, sizeof(executionEnd), &executionEnd, NULL);
        clReleaseEvent(exeEvt);

        printf("Execution the matrix-matrix multiplication took %lu.%lu s\n", (executionEnd - executionStart)/1000000000, (executionEnd - executionStart)%1000000000);
        printf("Execution the matrix-matrix multiplication took %lu s\n", (executionEnd - executionStart));
 
        clEnqueueReadBuffer(queue,
                            matrixCMemObj,
                            CL_TRUE,
                            0,
                            widthB * heightA * sizeof(cl_int),
                            matrixC,
                            0,
                            NULL,
                            NULL);
       
        if (compare(matrixC, matrixA, matrixB, heightA, widthA, widthB))
            printf("Passed!\n");
        else 
            printf("Failed!\n");
 
        /* Clean up */
        for(i=0; i< NUMBER_OF_FILES; i++) { free(buffer[i]); }
        clReleaseProgram(program);
        clReleaseContext(context);
        clReleaseMemObject(matrixAMemObj);
        clReleaseMemObject(matrixBMemObj);
        clReleaseMemObject(matrixCMemObj);
    }
    
    free(matrixA);
    free(matrixB);
    free(matrixC);
}
Ejemplo n.º 2
0
	XdevLComputeDeviceBufferCL::~XdevLComputeDeviceBufferCL() {
		if(nullptr != m_memory) {
			clReleaseMemObject(m_memory);
		}
	}
Ejemplo n.º 3
0
int main(int argc, char *argv[])
{
    int iGlobalSize = 1;
    int iCheck1, iCheck2, iCheck3, iCheck4;
    size_t iGlobalWorkSize = -1;
    size_t iLocalWorkSize = -1;
    if (argc > 1) // Size of input vector
    {
        iCheck1 = atoi(argv[1]);
        if (iCheck1 != 0)
        {
            iGlobalSize = iCheck1;
        }
    }
    int iNoReps = 100; // Number of repetitions.
	if (argc > 2)
	{
		iCheck2 = atoi(argv[2]);
        if (iCheck2 != 0)
        {
            iNoReps = iCheck2;
        }        
	}
    
/*    
    if (argc > 3) // Global work size
    {
        iCheck3 = atoi(argv[3]);
        if (iCheck3 != 0)
        {
            iGlobalWorkSize = iCheck3;
        }
    }
    if (argc > 4) // Local work size
    {
        iCheck4 = atoi(argv[4]);
        if (iCheck4 != 0)
        {
            iLocalWorkSize = iCheck4;
        }
    } */
    int bPrint = 0;
	if (argc > 3) // Originally 5.
	{
		bPrint = 1;
	}

 //   printf("The global size is %d, the global work size is %ld, and the local work size is %ld. \n", iGlobalSize, iGlobalWorkSize, iLocalWorkSize);
/*    size_t * ipGlobalWorkParam = NULL;
    if (iGlobalWorkSize != -1)
    {
        ipGlobalWorkParam = &iGlobalWorkSize;
    }
    
    size_t * ipLocalWorkParam = NULL;
    if (iLocalWorkSize != -1)
    {
        ipLocalWorkParam = &iLocalWorkSize;
    } */
    
    GCAQ * TheGCAQ = GCAQSetup();
    if (TheGCAQ == NULL)
    {
        return 1;
    }

#if BIGFLOAT
	const char *szFloatOpt = "-DBIGFLOAT";
#else
	const char *szFloatOpt = NULL;
#endif
    const int iNoKernels = 1;
	char *ourKernelStrings[6] =
		{ szDotProduct, szReduce, szDotProduct2, szReduce2, szDotProduct4, szReduce4};


  	GPAK *TheGPAK = GPAKSetup(TheGCAQ, iNoKernels, ourKernelStrings, szFloatOpt);
    if (TheGPAK == NULL)
    {
        GCAQShutdown(TheGCAQ);
        return 2;
    }

    INTG iTypicalWorkgroupNo = TheGPAK->TheMaxWorkGroupSizes[0];
    
    INTG iExpOutputSize = ioutsize(iGlobalSize, iTypicalWorkgroupNo);
    FLPT * fExpDotProdResult = (FLPT *) malloc(iExpOutputSize * sizeof(FLPT));
    FLPT * fExpReduceResult = (FLPT *) malloc(iExpOutputSize * sizeof(FLPT));
    fdotprodexpresult(iGlobalSize, iTypicalWorkgroupNo, fExpDotProdResult);
    freduceexpresult(iGlobalSize, iTypicalWorkgroupNo, fExpReduceResult);
 //   printvector("dot prod", iExpOutputSize, fExpDotProdResult);
 //   printvector("reduce", iExpOutputSize, fExpReduceResult);

    FLPT* inputDataF = (FLPT *) malloc(iGlobalSize * sizeof(FLPT));
    SetFIncrease(iGlobalSize, inputDataF);
    
    // For the dot product.
    
    FLPT* outputDataD = (FLPT *) malloc(iGlobalSize * sizeof(FLPT));
    SetFNull(iGlobalSize, outputDataD);

    // For the reduction.
    
    FLPT* outputDataR = (FLPT *) malloc(iGlobalSize * sizeof(FLPT));
    SetFNull(iGlobalSize, outputDataR);
    
	struct timespec start[iNoKernels];
	struct timespec end[iNoKernels];
    
// create buffers for the input and ouput

    int err; 
    cl_mem inputF, outputF, outputAll;
    inputF = clCreateBuffer(TheGCAQ->TheContext, CL_MEM_READ_ONLY, iGlobalSize * sizeof(FLPT), NULL, &err);
    if (err != CL_SUCCESS)
    {
        printf("Error allocating for F");
        return 3;
    }
    
    
    outputF = clCreateBuffer(TheGCAQ->TheContext, CL_MEM_WRITE_ONLY, iGlobalSize * sizeof(float), NULL, &err);
    if (err != CL_SUCCESS)
    {
        printf("Error allocating for output 7");
        return 9;
    }
    outputAll = clCreateBuffer(TheGCAQ->TheContext, CL_MEM_WRITE_ONLY, iGlobalSize * sizeof(float), NULL, &err);
    if (err != CL_SUCCESS)
    {
        printf("Error allocating for output 8");
        return 9;
    }

    clEnqueueWriteBuffer(TheGCAQ->TheQueue, inputF, CL_TRUE, 0, iGlobalSize * sizeof(FLPT), inputDataF, 0, NULL, NULL);

    int iRep;
    int iKernel;
    int i;
    int iLengthTotal = iGlobalSize;
    size_t iGlobalWorkThing = iGlobalSize;
    int iSomething = 1;
    for (iKernel = 0; iKernel < iNoKernels; iKernel++)
    {    
		for (i = 0; i < iLengthTotal; i++)
		{
			outputDataD[i] = 0.0;
            outputDataR[i] = 0.0;
		}
        
        clock_gettime(CLOCK_MONOTONIC, &(start[iKernel]));
		for (iRep = 0; iRep < iNoReps; iRep++)
		{
            clSetKernelArg(TheGPAK->TheKernels[iKernel], 0, sizeof(int), &iLengthTotal);
            clSetKernelArg(TheGPAK->TheKernels[iKernel], 1, sizeof(cl_mem), &inputF);
            clSetKernelArg(TheGPAK->TheKernels[iKernel], 2, iSomething * iLocalWorkSize * sizeof(float), NULL); // Was 3
            clSetKernelArg(TheGPAK->TheKernels[iKernel], 3, sizeof(cl_mem), &outputAll); // Was 4         
            clEnqueueNDRangeKernel(TheGCAQ->TheQueue, TheGPAK->TheKernels[iKernel], 1,
                NULL, &iGlobalWorkThing, &(TheGPAK->TheMaxWorkGroupSizes[iKernel]), 0, NULL, NULL);
            clFinish(TheGCAQ->TheQueue);
 
// copy the results from out of the output buffer

            if (iKernel % 2 ==  0)
            {
                clEnqueueReadBuffer(TheGCAQ->TheQueue, outputAll, CL_TRUE, 0, iExpOutputSize * sizeof(float), outputDataD, 0, NULL, NULL);
            }
            else
            {
                clEnqueueReadBuffer(TheGCAQ->TheQueue, outputAll, CL_TRUE, 0, iExpOutputSize * sizeof(float), outputDataR, 0, NULL, NULL);
            }
        
        }
        clock_gettime(CLOCK_MONOTONIC, &(end[iKernel]));    
        if (bPrint)
        {
            for (i = 0; i < iExpOutputSize; i++)
			{
				if (iKernel % 2 == 0)
                {
                    if (outputDataD[i] != fExpDotProdResult[i])
                    {
                        printf
                            ("A problem at kernel %d and iteration %d for actual value %f but expected value %f!\n",
                            iKernel, i, outputDataD[i], fExpDotProdResult[i]);
                        break;
                    }
                }
                else
                {
                    if (outputDataR[i] != fExpReduceResult[i])
                    {
                        printf
                            ("A problem at kernel %d and iteration %d for actual value %f but expected value %f!\n",
                            iKernel, i, outputDataR[i], fExpReduceResult[i]);
                        break;
                    }
                }
			}    
        }
   //     if ((iKernel % 2) == 1)
   //     {
   //         iLengthTotal = iLengthTotal / 2;
    //        iSomething = iSomething * 2;
    //        iGlobalWorkThing = iGlobalWorkThing / 2;
  //      }
    }


    clReleaseMemObject(inputF);
    clReleaseMemObject(outputF);
    clReleaseMemObject(outputAll);
    
// print the results
//    if (bPrint)
//    {
//        printf("output %d: \n", iGlobalSize);
//        for(i=0;i<iExpOutputSize; i++)
//        {
//            printf("%d - %f - %f\n", i, outputDataD[i], outputDataR[i]);
//        }   
//    }
    
// cleanup - release OpenCL resources
    
    free(inputDataF);
    free(outputDataD);
    free(outputDataR);
   
    GPAKShutdown(TheGPAK);
    GCAQShutdown (TheGCAQ);
    printf("%d - ", iGlobalSize);
	for (iKernel = 0; iKernel < iNoKernels; iKernel++)
	{
		printf("%f - ", (1.0 * TLPERS * iGlobalSize * iNoReps) /
			   (MEGAHERTZ * timespecDiff(&(end[iKernel]), &(start[iKernel]))));
	}
    printf("\n");
    return 0;
}
Ejemplo n.º 4
0
int
main(void)
{
    cl_int err;
    cl_platform_id platform = 0;
    cl_device_id device = 0;
    cl_context_properties props[3] = { CL_CONTEXT_PLATFORM, 0, 0 };
    cl_context ctx = 0;
    cl_command_queue queue = 0;
    cl_mem bufX, bufY, bufParam;
    cl_event event = NULL;
    int ret = 0;
	int lenX = 1 + (N-1)*abs(incx);
	int lenY = 1 + (N-1)*abs(incy);
	int lenParam = 5;

    /* Setup OpenCL environment. */
    err = clGetPlatformIDs(1, &platform, NULL);
    if (err != CL_SUCCESS) {
        printf( "clGetPlatformIDs() failed with %d\n", err );
        return 1;
    }

    err = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 1, &device, NULL);
    if (err != CL_SUCCESS) {
        printf( "clGetDeviceIDs() failed with %d\n", err );
        return 1;
    }

    props[1] = (cl_context_properties)platform;
    ctx = clCreateContext(props, 1, &device, NULL, NULL, &err);
    if (err != CL_SUCCESS) {
        printf( "clCreateContext() failed with %d\n", err );
        return 1;
    }

    queue = clCreateCommandQueue(ctx, device, 0, &err);
    if (err != CL_SUCCESS) {
        printf( "clCreateCommandQueue() failed with %d\n", err );
        clReleaseContext(ctx);
        return 1;
    }

    /* Setup clblas. */
    err = clblasSetup();
    if (err != CL_SUCCESS) {
        printf("clblasSetup() failed with %d\n", err);
        clReleaseCommandQueue(queue);
        clReleaseContext(ctx);
        return 1;
    }

    /* Prepare OpenCL memory objects and place matrices inside them. */
    bufX = clCreateBuffer(ctx, CL_MEM_READ_WRITE, (lenX*sizeof(cl_float)), NULL, &err);
    bufY = clCreateBuffer(ctx, CL_MEM_READ_WRITE, (lenY*sizeof(cl_float)), NULL, &err);
    bufParam = clCreateBuffer(ctx, CL_MEM_READ_WRITE, (lenParam*sizeof(cl_float)), NULL, &err);

    err = clEnqueueWriteBuffer(queue, bufX, CL_TRUE, 0, (lenX*sizeof(cl_float)), X, 0, NULL, NULL);
    err = clEnqueueWriteBuffer(queue, bufY, CL_TRUE, 0, (lenY*sizeof(cl_float)), Y, 0, NULL, NULL);
    err = clEnqueueWriteBuffer(queue, bufParam, CL_TRUE, 0, (lenParam*sizeof(cl_float)), SPARAM, 0, NULL, NULL);

    /* Call clblas function. */
    err = clblasSrotm(N, bufX, 0, incx, bufY, 0, incy, bufParam, 0, 1, &queue, 0, NULL, &event);
    if (err != CL_SUCCESS) {
        printf("clblasSrotm() failed with %d\n", err);
        ret = 1;
    }
    else {
        /* Wait for calculations to be finished. */
        err = clWaitForEvents(1, &event);

        /* Fetch results of calculations from GPU memory. */
        err = clEnqueueReadBuffer(queue, bufY, CL_TRUE, 0, (lenY*sizeof(cl_float)),
                                    Y, 0, NULL, NULL);
        err = clEnqueueReadBuffer(queue, bufX, CL_TRUE, 0, (lenX*sizeof(cl_float)),
                                    X, 0, NULL, NULL);

        /* At this point you will get the result of SROTM placed in vector Y. */
        printResult();
    }

    /* Release OpenCL events. */
    clReleaseEvent(event);

    /* Release OpenCL memory objects. */
    clReleaseMemObject(bufY);
    clReleaseMemObject(bufX);
    clReleaseMemObject(bufParam);

    /* Finalize work with clblas. */
    clblasTeardown();

    /* Release OpenCL working objects. */
    clReleaseCommandQueue(queue);
    clReleaseContext(ctx);

    return ret;
}
int 
MemoryOptimizations::cleanup()
{
    /* Releases OpenCL resources (Context, Memory etc.) */
    cl_int status;

    for(int i = 0; i < NUM_KERNELS; i++)
    {
        status = clReleaseKernel(kernel[i]);
        if(!sampleCommon->checkVal(
            status,
            CL_SUCCESS,
            "clReleaseKernel failed."))
            return SDK_FAILURE;
    }

    status = clReleaseProgram(program);
    if(!sampleCommon->checkVal(
        status,
        CL_SUCCESS,
        "clReleaseProgram failed."))
        return SDK_FAILURE;
 
    status = clReleaseMemObject(inputBuffer);
    if(!sampleCommon->checkVal(
        status,
        CL_SUCCESS,
        "clReleaseMemObject failed."))
        return SDK_FAILURE;

    status = clReleaseMemObject(outputBuffer);
    if(!sampleCommon->checkVal(
        status,
        CL_SUCCESS,
        "clReleaseMemObject failed."))
        return SDK_FAILURE;

    status = clReleaseCommandQueue(commandQueue);
     if(!sampleCommon->checkVal(
        status,
        CL_SUCCESS,
        "clReleaseCommandQueue failed."))
        return SDK_FAILURE;

    status = clReleaseContext(context);
    if(!sampleCommon->checkVal(
        status,
        CL_SUCCESS,
        "clReleaseContext failed."))
        return SDK_FAILURE;

    /* release program resources (input memory etc.) */
    if(input) 
        free(input);

    if(output)
        free(output);

    /* release device list */
    if(devices)
        free(devices);

    if(maxWorkItemSizes)
        free(maxWorkItemSizes);

    return SDK_SUCCESS;
}
Ejemplo n.º 6
0
int main() {
// START:context
  cl_platform_id platform;
  clGetPlatformIDs(1, &platform, NULL);

  cl_device_id device;
  clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 1, &device, NULL);

  cl_context context = clCreateContext(NULL, 1, &device, NULL, NULL, NULL);
// END:context

// START:queue
  cl_command_queue queue = clCreateCommandQueue(context, device, 0, NULL);
// END:queue

// START:kernel
  char* source = read_source("multiply_arrays.cl");
  cl_program program = clCreateProgramWithSource(context, 1,
    (const char**)&source, NULL, NULL);
  free(source);
  clBuildProgram(program, 0, NULL, NULL, NULL, NULL);
  cl_kernel kernel = clCreateKernel(program, "multiply_arrays", NULL);
// END:kernel

// START:buffers
  cl_float a[NUM_ELEMENTS], b[NUM_ELEMENTS];
  random_fill(a, NUM_ELEMENTS);
  random_fill(b, NUM_ELEMENTS);
  cl_mem inputA = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
    sizeof(cl_float) * NUM_ELEMENTS, a, NULL);
  cl_mem inputB = clCreateBuffer(context, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
    sizeof(cl_float) * NUM_ELEMENTS, b, NULL);
  cl_mem output = clCreateBuffer(context, CL_MEM_WRITE_ONLY,
    sizeof(cl_float) * NUM_ELEMENTS, NULL, NULL);
// END:buffers

// START:execute
  clSetKernelArg(kernel, 0, sizeof(cl_mem), &inputA);
  clSetKernelArg(kernel, 1, sizeof(cl_mem), &inputB);
  clSetKernelArg(kernel, 2, sizeof(cl_mem), &output);

  size_t work_units = NUM_ELEMENTS;
  clEnqueueNDRangeKernel(queue, kernel, 1, NULL, &work_units, NULL, 0, NULL, NULL);
// END:execute

// START:results
  cl_float results[NUM_ELEMENTS];
  clEnqueueReadBuffer(queue, output, CL_TRUE, 0, sizeof(cl_float) * NUM_ELEMENTS,
    results, 0, NULL, NULL);
// END:results

// START:cleanup
  clReleaseMemObject(inputA);
  clReleaseMemObject(inputB);
  clReleaseMemObject(output);
  clReleaseKernel(kernel);
  clReleaseProgram(program);
  clReleaseCommandQueue(queue);
  clReleaseContext(context);
// END:cleanup

  for (int i = 0; i < NUM_ELEMENTS; ++i) {
    printf("%f * %f = %f\n", a[i], b[i], results[i]);
  }

  return 0;
}
void shmoo(int minN, int maxN, int maxThreads, int maxBlocks, ReduceType datatype)
{ 
    // create random input data on CPU
    unsigned int bytes = maxN * sizeof(T);

    T* h_idata = (T*)malloc(bytes);

    for(int i = 0; i < maxN; i++) {
        // Keep the numbers small so we don't get truncation error in the sum
        if (datatype == REDUCE_INT)
            h_idata[i] = (T)(rand() & 0xFF);
        else
            h_idata[i] = (rand() & 0xFF) / (T)RAND_MAX;
    }

    int maxNumBlocks = MIN( maxN / maxThreads, MAX_BLOCK_DIM_SIZE);

    // allocate mem for the result on host side
    T* h_odata = (T*) malloc(maxNumBlocks*sizeof(T));

    // allocate device memory and data
    cl_mem d_idata = clCreateBuffer(cxGPUContext, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, bytes, h_idata, NULL);
    cl_mem d_odata = clCreateBuffer(cxGPUContext, CL_MEM_READ_WRITE, maxNumBlocks * sizeof(T), NULL, NULL);

    int testIterations = 100;
    double dTotalTime = 0.0;
    
    // print headers
    shrLog("Time in seconds for various numbers of elements for each kernel\n");
    shrLog("\n\n");
    shrLog("Kernel");
    for (int i = minN; i <= maxN; i *= 2)
    {
        shrLog(", %d", i);
    }
   
    for (int kernel = 0; kernel < 7; kernel++)
    {
        shrLog("\n");
        shrLog("%d", kernel);
        for (int i = minN; i <= maxN; i *= 2)
        {
            int numBlocks = 0;
            int numThreads = 0;
            getNumBlocksAndThreads(kernel, i, maxBlocks, maxThreads, numBlocks, numThreads);
            
            double reduceTime;
            if( numBlocks <= MAX_BLOCK_DIM_SIZE ) {
                profileReduce(datatype, i, numThreads, numBlocks, maxThreads, maxBlocks, kernel, 
                                testIterations, false, 1, &dTotalTime, h_odata, d_idata, d_odata);
                reduceTime = dTotalTime/(double)testIterations;
            } else {                
                reduceTime = -1.0;
            }
            shrLog(", %.4f m", reduceTime);
        }
    }

    // cleanup
    free(h_idata);
    free(h_odata);
    clReleaseMemObject(d_idata);
    clReleaseMemObject(d_odata);
}
Ejemplo n.º 8
0
END_TEST

START_TEST (test_read_write_rect)
{
    cl_device_id device;
    cl_context ctx;
    cl_command_queue queue;
    cl_int result;
    cl_mem buf, buf_part;

    cl_platform_id platform      = 0;
    cl_uint        num_platforms = 0;
    clGetPlatformIDs(1, &platform, &num_platforms);

    // Grid xyz = (5 x 7 x 2)
    unsigned char grid[70] = {
        0, 0, 0, 0, 0,
        0, 1, 1, 1, 0,
        1, 2, 2, 2, 1,
        1, 2, 3, 2, 1,
        1, 2, 2, 2, 1,
        0, 1, 1, 1, 0,
        0, 0, 0, 0, 0,

        0, 0, 1, 0, 0,
        0, 0, 2, 0, 0,
        0, 1, 3, 1, 0,
        0, 2, 3, 2, 0,
        1, 3, 3, 3, 1,
        2, 3, 3, 3, 2,
        3, 3, 3, 3, 3
    };

    // Middle of the "image" : 3 x 3 x 2 centered at (3, 3)
    unsigned char part[18] = {
        2, 2, 2,
        2, 3, 2,
        2, 2, 2,

        1, 3, 1,
        2, 3, 2,
        3, 3, 3
    };

    unsigned char buffer[70], buffer_part[18];
    size_t host_origin[3] = {0, 0, 0};
    size_t buf_origin[3] = {0, 0, 0};
    size_t region[3] = {5, 7, 2};

    result = clGetDeviceIDs(platform, CL_DEVICE_TYPE_DEFAULT, 1, &device, 0);
    fail_if(
        result != CL_SUCCESS,
        "unable to get the default device"
    );

    ctx = clCreateContext(0, 1, &device, 0, 0, &result);
    fail_if(
        result != CL_SUCCESS || ctx == 0,
        "unable to create a valid context"
    );

    queue = clCreateCommandQueue(ctx, device, 0, &result);
    fail_if(
        result != CL_SUCCESS || queue == 0,
        "cannot create a command queue"
    );

    buf = clCreateBuffer(ctx, CL_MEM_WRITE_ONLY | CL_MEM_USE_HOST_PTR,
                         sizeof(buffer), buffer, &result);
    fail_if(
        result != CL_SUCCESS,
        "cannot create a valid CL_MEM_USE_HOST_PTR read-write buffer"
    );

    buf_part = clCreateBuffer(ctx, CL_MEM_WRITE_ONLY | CL_MEM_USE_HOST_PTR,
                              sizeof(buffer_part), buffer_part, &result);
    fail_if(
        result != CL_SUCCESS,
        "cannot create a buffer for the part that will be read"
    );

    // Write grid into buffer
    result = clEnqueueWriteBufferRect(queue, buf, 1, buf_origin, host_origin,
                                      region, 0, 0, 0, 0, grid, 0, 0, 0);
    fail_if(
        result != CL_SUCCESS,
        "cannot enqueue a blocking write buffer rect event with pitches guessed"
    );
    fail_if(
        std::memcmp(buffer, grid, sizeof(buffer)) != 0,
        "buffer doesn't contain the data"
    );

    // Read it back into a temporary region
    buf_origin[0] = 1;
    buf_origin[1] = 2;
    buf_origin[2] = 0;
    // host_origin remains (0, 0, 0)
    region[0] = 3;
    region[1] = 3;
    region[2] = 2;

    result = clEnqueueReadBufferRect(queue, buf, 1, buf_origin, host_origin,
                                     region, 5, 5*7, 0, 0, buffer_part, 0, 0, 0);
    fail_if(
        result != CL_SUCCESS,
        "unable to queue a blocking write buffer rect event with host pitches guessed"
    );
    fail_if(
        std::memcmp(buffer_part, part, sizeof(part)) != 0,
        "the part of the buffer was not correctly read"
    );

    // Clear the temporary region and re-read into it using buf_part
    std::memset(buffer_part, 0, sizeof(buffer_part));
    cl_event event;

    result = clEnqueueCopyBufferRect(queue, buf, buf_part, buf_origin,
                                     host_origin, region, 5, 5*7, 0, 0, 0, 0, &event);
    fail_if(
        result != CL_SUCCESS,
        "unable to queue a copy buffer rect event"
    );

    result = clWaitForEvents(1, &event);
    fail_if(
        result != CL_SUCCESS,
        "unable to wait for the event"
    );

    fail_if(
        std::memcmp(buffer_part, part, sizeof(part)) != 0,
        "the part of the buffer was not correctly read using a buffer"
    );

    clReleaseEvent(event);
    clReleaseMemObject(buf_part);
    clReleaseMemObject(buf);
    clReleaseCommandQueue(queue);
    clReleaseContext(ctx);
}
Ejemplo n.º 9
0
END_TEST

START_TEST (test_copy_buffer)
{
    cl_device_id device;
    cl_context ctx;
    cl_command_queue queue;
    cl_int result;
    cl_mem src_buf, dst_buf;
    cl_event event;

    cl_platform_id platform      = 0;
    cl_uint        num_platforms = 0;
    clGetPlatformIDs(1, &platform, &num_platforms);

    char src[] = "This is the data.";
    char dst[] = "Overwrite this...";

    result = clGetDeviceIDs(platform, CL_DEVICE_TYPE_DEFAULT, 1, &device, 0);
    fail_if(
        result != CL_SUCCESS,
        "unable to get the default device"
    );

    ctx = clCreateContext(0, 1, &device, 0, 0, &result);
    fail_if(
        result != CL_SUCCESS || ctx == 0,
        "unable to create a valid context"
    );

    queue = clCreateCommandQueue(ctx, device, 0, &result);
    fail_if(
        result != CL_SUCCESS || queue == 0,
        "cannot create a command queue"
    );

    src_buf = clCreateBuffer(ctx, CL_MEM_WRITE_ONLY | CL_MEM_USE_HOST_PTR,
                             sizeof(src), src, &result);
    fail_if(
        result != CL_SUCCESS,
        "cannot create the source buffer"
    );

    dst_buf = clCreateBuffer(ctx, CL_MEM_WRITE_ONLY | CL_MEM_USE_HOST_PTR,
                             sizeof(dst), dst, &result);
    fail_if(
        result != CL_SUCCESS,
        "cannot create the destination buffer"
    );

    result = clEnqueueCopyBuffer(queue, src_buf, dst_buf, 0, 0, sizeof(src),
                                 0, 0, &event);
    fail_if(
        result != CL_SUCCESS,
        "unable to queue a copy buffer event"
    );

    result = clWaitForEvents(1, &event);
    fail_if(
        result != CL_SUCCESS,
        "unable to wait for the event"
    );

    fail_if(
        std::memcmp(src, dst, sizeof(src)) != 0,
        "the buffer wasn't copied"
    );

    clReleaseEvent(event);
    clReleaseMemObject(src_buf);
    clReleaseMemObject(dst_buf);
    clReleaseCommandQueue(queue);
    clReleaseContext(ctx);
}
Ejemplo n.º 10
0
void JNIContext::dispose(JNIEnv *jenv, Config* config) {
   //fprintf(stdout, "dispose()\n");
   cl_int status = CL_SUCCESS;
   jenv->DeleteGlobalRef(kernelObject);
   jenv->DeleteGlobalRef(kernelClass);
   if (context != 0){
      status = clReleaseContext(context);
      //fprintf(stdout, "dispose context %0lx\n", context);
      CLException::checkCLError(status, "clReleaseContext()");
      context = (cl_context)0;
   }
   if (commandQueue != 0){
      if (config->isTrackingOpenCLResources()){
         commandQueueList.remove((cl_command_queue)commandQueue, __LINE__, __FILE__);
      }
      status = clReleaseCommandQueue((cl_command_queue)commandQueue);
      //fprintf(stdout, "dispose commandQueue %0lx\n", commandQueue);
      CLException::checkCLError(status, "clReleaseCommandQueue()");
      commandQueue = (cl_command_queue)0;
   }
   if (program != 0){
      status = clReleaseProgram((cl_program)program);
      //fprintf(stdout, "dispose program %0lx\n", program);
      CLException::checkCLError(status, "clReleaseProgram()");
      program = (cl_program)0;
   }
   if (kernel != 0){
      status = clReleaseKernel((cl_kernel)kernel);
      //fprintf(stdout, "dispose kernel %0lx\n", kernel);
      CLException::checkCLError(status, "clReleaseKernel()");
      kernel = (cl_kernel)0;
   }
   if (argc > 0){
      for (int i=0; i< argc; i++){
         KernelArg *arg = args[i];
         if (!arg->isPrimitive()){
            if (arg->arrayBuffer != NULL){
               if (arg->arrayBuffer->mem != 0){
                  if (config->isTrackingOpenCLResources()){
                     memList.remove((cl_mem)arg->arrayBuffer->mem, __LINE__, __FILE__);
                  }
                  status = clReleaseMemObject((cl_mem)arg->arrayBuffer->mem);
                  //fprintf(stdout, "dispose arg %d %0lx\n", i, arg->arrayBuffer->mem);
                  CLException::checkCLError(status, "clReleaseMemObject()");
                  arg->arrayBuffer->mem = (cl_mem)0;
               }
               if (arg->arrayBuffer->javaArray != NULL)  {
                  jenv->DeleteWeakGlobalRef((jweak) arg->arrayBuffer->javaArray);
               }
               delete arg->arrayBuffer;
               arg->arrayBuffer = NULL;
            }
         }
         if (arg->name != NULL){
            free(arg->name); arg->name = NULL;
         }
         if (arg->javaArg != NULL ) {
            jenv->DeleteGlobalRef((jobject) arg->javaArg);
         }
         delete arg; arg=args[i]=NULL;
      }
      delete[] args; args=NULL;

      // do we need to call clReleaseEvent on any of these that are still retained....
      delete[] readEvents; readEvents = NULL;
      delete[] writeEvents; writeEvents = NULL;
      delete[] executeEvents; executeEvents = NULL;

      if (config->isProfilingEnabled()) {
         if (config->isProfilingCSVEnabled()) {
            if (profileFile != NULL && profileFile != stderr) {
               fclose(profileFile);
            }
         }
         delete[] readEventArgs; readEventArgs=0;
         delete[] writeEventArgs; writeEventArgs=0;
      } 
   }
   if (config->isTrackingOpenCLResources()){
      fprintf(stderr, "after dispose{ \n");
      commandQueueList.report(stderr);
      memList.report(stderr); 
      readEventList.report(stderr); 
      executeEventList.report(stderr); 
      writeEventList.report(stderr); 
      fprintf(stderr, "}\n");
   }
}
Ejemplo n.º 11
0
int main(int argc, char *argv[])
{
    //FILE *fp;

    cl_platform_id      platform_id[2];
    cl_uint             ret_num_devices;
    cl_uint             ret_num_platforms;
    cl_int              ret_code;

    cl_mem              image_in_mem = NULL;
    cl_mem              image_out_mem = NULL;
    cl_mem              twiddle_factors_mem = NULL;
    cl_float2           *image_in_host;
    cl_float2           *twiddle_factors_host;

    cl_kernel           kernel_twiddle_factors;
    cl_kernel           kernel_matriz_transpose;
    cl_kernel           kernel_lowpass_filter;

    pgm_t ipgm;
    pgm_t opgm;

    image_file_t        *image_filename;
    char                *output_filename;
    FILE                *fp;
    const char          *kernel_filename = C_NOME_ARQ_KERNEL;
    size_t              source_size;
    char                *source_str;
    cl_int              i, j,n ,m;
    cl_int              raio = 0;
    size_t              global_wg[2];
    size_t              local_wg[2];
    float               *image_amplitudes;
    size_t              log_size;
    char                *log_file;

    cl_event            kernels_events_out_fft[4];

    cl_ulong            kernel_runtime              = (cl_ulong) 0;
    cl_ulong            kernel_start_time           = (cl_ulong) 0;
    cl_ulong            kernel_end_time             = (cl_ulong) 0;

    cl_event            write_host_dev_event;
    cl_ulong            write_host_dev_start_time   = (cl_ulong) 0;
    cl_ulong            write_host_dev_end_time     = (cl_ulong) 0;
    cl_ulong            write_host_dev_run_time     = (cl_ulong) 0;

    cl_event            read_dev_host_event;
    cl_ulong            read_dev_host_start_time    = (cl_ulong) 0;
    cl_ulong            read_dev_host_end_time      = (cl_ulong) 0;
    cl_ulong            read_dev_host_run_time      = (cl_ulong) 0;

    unsigned __int64    image_tam;
    unsigned __int64    MEGA_BYTES   =  1048576; // 1024*1024
    double              image_tam_MB;
    double              tempo_total;

    struct event_in_fft_t *fft_events;


   //=== Timer count start ==============================================================================
    timer_reset();
    timer_start();
    //===================================================================================================

    if (argc < 2) {
        printf("**Erro: O arquivo de entrada eh necessario.\n");
        exit(EXIT_FAILURE);
    }

    image_filename = (image_file_t *) malloc(sizeof(image_file_t));
    split_image_filename(image_filename, argv[1]);
    output_filename = (char *) malloc(40*sizeof(char));
    sprintf(output_filename, "%d.%d.%s.%s.%s", image_filename->res, image_filename->num, ENV_TYPE, APP_TYPE, EXTENSAO);

    fp = fopen(kernel_filename, "r");
    if (!fp) {
        fprintf(stderr, "Failed to load kernel.\n");
        exit(EXIT_FAILURE);
    }

    source_str = (char *)malloc(MAX_SOURCE_SIZE);
    source_size = fread(source_str, 1, MAX_SOURCE_SIZE, fp);
    fclose( fp );

    //===================================================================================================
     /* Abrindo imagem do arquivo para objeto de memoria local*/
    if( ler_pgm(&ipgm, argv[1]) == -1)
        exit(EXIT_FAILURE);

    n = ipgm.width;
    raio = n/8;
    m = (cl_int)(log((double)n)/log(2.0));

    image_in_host = (cl_float2 *)malloc((n*n)*sizeof(cl_float2));
    twiddle_factors_host = (cl_float2 *)malloc(n / 2 * sizeof(cl_float2));

    for (i = 0; i < n; i++) {
        for (j = 0; j < n; j++) {
            image_in_host[n*i + j].s[0] = (float)ipgm.buf[n*i + j];
            image_in_host[n*i + j].s[1] = (float)0;
        }
    }

    fft_events = (struct event_in_fft_t *)malloc(MAX_CALL_FFT*sizeof(struct event_in_fft_t));

    kernel_butter_events = (cl_event *)malloc(MAX_CALL_FFT*m*sizeof(cl_event));

    //===================================================================================================
    CL_CHECK(clGetPlatformIDs(MAX_PLATFORM_ID, platform_id, &ret_num_platforms));

    if (ret_num_platforms == 0 ) {
        fprintf(stderr,"[Erro] Não existem plataformas OpenCL\n");
        exit(2);
    }

    //===================================================================================================

    CL_CHECK(clGetDeviceIDs( platform_id[0], CL_DEVICE_TYPE_GPU, 1, &device_id, &ret_num_devices));
    //print_platform_info(&platform_id[1]);

    //===================================================================================================
    context = clCreateContext(NULL, 1, &device_id, NULL, NULL, &ret_code);
    //===================================================================================================

    cmd_queue = clCreateCommandQueue(context, device_id, CL_QUEUE_PROFILING_ENABLE, &ret_code);
    //===================================================================================================

    image_in_mem = clCreateBuffer(context, CL_MEM_READ_WRITE, n*n*sizeof(cl_float2), NULL, &ret_code);
    image_out_mem = clCreateBuffer(context, CL_MEM_READ_WRITE, n*n*sizeof(cl_float2), NULL, &ret_code);
    twiddle_factors_mem = clCreateBuffer(context, CL_MEM_READ_WRITE, (n/2)*sizeof(cl_float2), NULL, &ret_code);
    //===================================================================================================

    /* Transfer data to memory buffer */
    CL_CHECK(clEnqueueWriteBuffer(cmd_queue, image_in_mem, CL_TRUE, 0, n*n*sizeof(cl_float2), image_in_host, 0, NULL, &write_host_dev_event));

    image_tam = n*n*sizeof(cl_float2);

    //===================================================================================================
    program = clCreateProgramWithSource(context, 1, (const char **)&source_str, (const size_t *)&source_size, &ret_code);
    //===================================================================================================
    ret_code = clBuildProgram(program, 1, &device_id, NULL, NULL, NULL);
    //===================================================================================================
    if (ret_code != CL_SUCCESS) {
    // Determine the size of the log
    clGetProgramBuildInfo(program, device_id, CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
    //===================================================================================================

    // Allocate memory for the log
    log_file = (char *) malloc(log_size);

    // Get the log
    clGetProgramBuildInfo(program, device_id, CL_PROGRAM_BUILD_LOG, log_size, log_file, NULL);
    printf("%s\n", log_file);
    system("pause");
    exit(0);
}
    kernel_twiddle_factors = clCreateKernel(program, "twiddle_factors", &ret_code);
    kernel_matriz_transpose = clCreateKernel(program, "matrix_trasponse", &ret_code);
    kernel_lowpass_filter  = clCreateKernel(program, "lowpass_filter", &ret_code);

    /* Processa os fatores Wn*/
    //===================================================================================================
    CL_CHECK(clSetKernelArg(kernel_twiddle_factors, 0, sizeof(cl_mem), (void *)&twiddle_factors_mem));
    CL_CHECK(clSetKernelArg(kernel_twiddle_factors, 1, sizeof(cl_int), (void *)&n));
    config_workgroup_size(global_wg, local_wg, n/2, 1);
    CL_CHECK(clEnqueueNDRangeKernel(cmd_queue, kernel_twiddle_factors, 1, NULL, global_wg, local_wg, 0, NULL, &kernels_events_out_fft[0]));

    //===================================================================================================
    /* Executa a FFT em N/2 */
    fft_main(image_out_mem, image_in_mem, twiddle_factors_mem, m, direta, &fft_events[0]);

    //===================================================================================================
    /* Realiza a transposta da Matriz (imagem) */
    CL_CHECK(clSetKernelArg(kernel_matriz_transpose, 0, sizeof(cl_mem), (void *)&image_in_mem));
    CL_CHECK(clSetKernelArg(kernel_matriz_transpose, 1, sizeof(cl_mem), (void *)&image_out_mem));
    CL_CHECK(clSetKernelArg(kernel_matriz_transpose, 2, sizeof(cl_int), (void *)&n));
    config_workgroup_size(global_wg, local_wg, n, n);
    CL_CHECK(clEnqueueNDRangeKernel(cmd_queue, kernel_matriz_transpose, 2, NULL, global_wg, local_wg, 0, NULL, &kernels_events_out_fft[1]));

    //===================================================================================================
    /* Executa a FFT N/2 */
    fft_main(image_out_mem, image_in_mem, twiddle_factors_mem, m, direta, &fft_events[1]);

    //===================================================================================================
    /* Processa o filtro passa baixa */
    CL_CHECK(clSetKernelArg(kernel_lowpass_filter, 0, sizeof(cl_mem), (void *)&image_out_mem));
    CL_CHECK(clSetKernelArg(kernel_lowpass_filter, 1, sizeof(cl_int), (void *)&n));
    CL_CHECK(clSetKernelArg(kernel_lowpass_filter, 2, sizeof(cl_int), (void *)&raio));
    config_workgroup_size(global_wg, local_wg, n, n);
    CL_CHECK(clEnqueueNDRangeKernel(cmd_queue, kernel_lowpass_filter, 2, NULL, global_wg, local_wg, 0, NULL, &kernels_events_out_fft[2]));

    //===================================================================================================
    /* Obtem a FFT inversa*/
    fft_main(image_in_mem, image_out_mem, twiddle_factors_mem, m, inversa, &fft_events[2]);
    //===================================================================================================

    /* Realiza a transposta da Matriz (imagem) */
    CL_CHECK(clSetKernelArg(kernel_matriz_transpose, 0, sizeof(cl_mem), (void *)&image_out_mem));
    CL_CHECK(clSetKernelArg(kernel_matriz_transpose, 1, sizeof(cl_mem), (void *)&image_in_mem));
    CL_CHECK(clSetKernelArg(kernel_matriz_transpose, 2, sizeof(cl_int), (void *)&n));
    config_workgroup_size(global_wg, local_wg, n, n);
    CL_CHECK(clEnqueueNDRangeKernel(cmd_queue, kernel_matriz_transpose, 2, NULL, global_wg, local_wg, 0, NULL, &kernels_events_out_fft[3]));

    //===================================================================================================
    fft_main(image_in_mem, image_out_mem, twiddle_factors_mem, m, inversa, &fft_events[3]);
    //===================================================================================================

    CL_CHECK(clEnqueueReadBuffer(cmd_queue, image_in_mem, CL_TRUE, 0, n*n*sizeof(cl_float2), image_in_host, 0, NULL, &read_dev_host_event));
    //===================================================================================================

    //== Total time elapsed ============================================================================
    timer_stop();
    tempo_total = get_elapsed_time();
    //==================================================================================================

    //====== Get time of Profile Info ==================================================================
    // Write data time
    CL_CHECK(clGetEventProfilingInfo(write_host_dev_event, CL_PROFILING_COMMAND_START, sizeof(cl_ulong), &write_host_dev_start_time, NULL));
    CL_CHECK(clGetEventProfilingInfo(write_host_dev_event, CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &write_host_dev_end_time, NULL));
    // Read data time
    CL_CHECK(clGetEventProfilingInfo(read_dev_host_event, CL_PROFILING_COMMAND_START, sizeof(cl_ulong), &read_dev_host_start_time, NULL));
    CL_CHECK(clGetEventProfilingInfo(read_dev_host_event, CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &read_dev_host_end_time, NULL));

    for (i = 0; i < MAX_CALL_FFT; i++) {

        kernel_start_time = (cl_long) 0;
        kernel_end_time = (cl_long) 0;
        CL_CHECK(clGetEventProfilingInfo(kernels_events_out_fft[i], CL_PROFILING_COMMAND_START, sizeof(cl_ulong), &kernel_start_time, NULL));
        CL_CHECK(clGetEventProfilingInfo(kernels_events_out_fft[i], CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &kernel_end_time, NULL));
        kernel_runtime += (kernel_end_time - kernel_start_time);

        kernel_start_time = (cl_long) 0;
        kernel_end_time = (cl_long) 0;
        CL_CHECK(clGetEventProfilingInfo(fft_events[i].kernel_bitsrev, CL_PROFILING_COMMAND_START, sizeof(cl_ulong), &kernel_start_time, NULL));
        CL_CHECK(clGetEventProfilingInfo(fft_events[i].kernel_bitsrev, CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &kernel_end_time, NULL));
        kernel_runtime += (kernel_end_time - kernel_start_time);

        kernel_start_time = (cl_long) 0;
        kernel_end_time = (cl_long) 0;

        if (fft_events[i].kernel_normalize != NULL) {
            CL_CHECK(clGetEventProfilingInfo(fft_events[i].kernel_normalize, CL_PROFILING_COMMAND_START, sizeof(cl_ulong), &kernel_start_time, NULL));
            CL_CHECK(clGetEventProfilingInfo(fft_events[i].kernel_normalize, CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &kernel_end_time, NULL));
            kernel_runtime += (kernel_end_time - kernel_start_time);
        }
   }

    for (j=0; j < MAX_CALL_FFT*m; j++){
        kernel_start_time = (cl_long) 0;
        kernel_end_time = (cl_long) 0;

        CL_CHECK(clGetEventProfilingInfo(kernel_butter_events[j], CL_PROFILING_COMMAND_START, sizeof(cl_ulong), &kernel_start_time, NULL));
        CL_CHECK(clGetEventProfilingInfo(kernel_butter_events[j], CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &kernel_end_time, NULL));
        kernel_runtime += (kernel_end_time - kernel_start_time);
    }

    write_host_dev_run_time = write_host_dev_end_time - write_host_dev_start_time;
    read_dev_host_run_time =  read_dev_host_end_time -  read_dev_host_start_time;

/* save_log_debug(write_host_dev_run_time,fp);
    save_log_debug(read_dev_host_run_time,fp);
    close_log_debug(fp); */

    image_tam_MB = (double) (((double) image_tam)/(double) MEGA_BYTES);

    //==================================================================================================
    save_log_gpu(image_filename, kernel_runtime, (double) (image_tam_MB/( (double) read_dev_host_run_time/(double) NANOSECONDS)),
    (double) (image_tam_MB/ ((double) write_host_dev_run_time/ (double) NANOSECONDS)), tempo_total, LOG_NAME);

    //===================================================================================================
    image_amplitudes = (float*)malloc(n*n*sizeof(float));
    for (i=0; i < n; i++) {
        for (j=0; j < n; j++) {
            image_amplitudes[n*j + i] = (float) (AMP(((float*)image_in_host)[(2*n*j)+2*i], ((float*)image_in_host)[(2*n*j)+2*i+1]));
        }
    }

    //clFlush(cmd_queue);
    //clFinish(cmd_queue);
    opgm.width = n;
    opgm.height = n;

    normalizar_pgm(&opgm, image_amplitudes);
    escrever_pgm(&opgm, output_filename);

    //===================================================================================================
	clFinish(cmd_queue);
    clReleaseKernel(kernel_twiddle_factors);
    clReleaseKernel(kernel_matriz_transpose);
    clReleaseKernel(kernel_lowpass_filter);
    clReleaseProgram(program);
    clReleaseMemObject(image_in_mem);
    clReleaseMemObject(image_out_mem);
    clReleaseMemObject(twiddle_factors_mem);
    clReleaseCommandQueue(cmd_queue);
    clReleaseContext(context);
	clReleaseEvent(read_dev_host_event);
	clReleaseEvent(write_host_dev_event);
	clReleaseEvent(kernels_events_out_fft[0]);
	clReleaseEvent(kernels_events_out_fft[1]);
	clReleaseEvent(kernels_events_out_fft[2]);
	clReleaseEvent(kernels_events_out_fft[3]);
    destruir_pgm(&ipgm);
    destruir_pgm(&opgm);
    free(image_amplitudes);
    free(source_str);
    free(image_in_host);
    free(image_filename);
    free(twiddle_factors_host);
    free(output_filename);
    free(fft_events);
    free(kernel_butter_events);

    //_CrtDumpMemoryLeaks();

    return 0;
}
Ejemplo n.º 12
0
double gpu_cgm_image(uint32_t* aList, uint32_t* bList, int aLength,
		int bLength, int keyLength, uint32_t** matches, char* clFile, int x,
		int y) {
	int gap = 0, myoffset = 0;
	cl_platform_id *platforms;
	cl_uint num_platforms = 0;
	cl_device_id *devices;
	cl_uint num_devices = 0;
	cl_context context;
	cl_command_queue command_queue;
	cl_image_format imgFormat;
	cl_mem aImg;
	cl_mem bImg;
	cl_mem res_buf;
	cl_program program;
	cl_kernel kernel;
	cl_uint *results;
	FILE *prgm_fptr;
	struct stat prgm_sbuf;
	char *prgm_data;
	size_t prgm_size;
	size_t offset;
	size_t count;
	const size_t global_work_size[] = { x, y };
	const size_t origin[] = { 0, 0, 0 };
	const size_t region[] = { aLength, 1, 1 };

	cl_int ret;
	cl_uint i;

	cl_bool imageSupport;

	struct timeval t1, t2;
	double elapsedTime;

	results = malloc(sizeof(cl_uint) * aLength);

	imgFormat.image_channel_order = CL_RGBA;
	imgFormat.image_channel_data_type = CL_UNSIGNED_INT32;

	/* figure out how many CL platforms are available */
	ret = clGetPlatformIDs(0, NULL, &num_platforms);
	if (CL_SUCCESS != ret) {
		print_error ("Error getting the number of platform IDs: %d", ret);
		exit(EXIT_FAILURE);
	}

	if (0 == num_platforms) {
		print_error ("No CL platforms were found.");
		exit(EXIT_FAILURE);
	}

	/* allocate space for each available platform ID */
	if (NULL == (platforms = malloc((sizeof *platforms) * num_platforms))) {
		print_error ("Out of memory");
		exit(EXIT_FAILURE);
	}

	/* get all of the platform IDs */
	ret = clGetPlatformIDs(num_platforms, platforms, NULL);
	if (CL_SUCCESS != ret) {
		print_error ("Error getting platform IDs: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* find a platform that supports given device type */
	//	print_error ("Number of platforms found: %d", num_platforms);
	for (i = 0; i < num_platforms; i++) {
		ret = clGetDeviceIDs(platforms[i], getDeviceType(), 0, NULL,
				&num_devices);
		if (CL_SUCCESS != ret)
			continue;

		if (0 < num_devices)
			break;
	}

	/* make sure at least one device was found */
	if (num_devices == 0) {
		print_error ("No CL device found that supports device type: %s.", ((getDeviceType() == CL_DEVICE_TYPE_CPU) ? "CPU" : "GPU"));
		exit(EXIT_FAILURE);
	}

	/* only one device is necessary... */
	num_devices = 1;
	if (NULL == (devices = malloc((sizeof *devices) * num_devices))) {
		print_error ("Out of memory");
		exit(EXIT_FAILURE);
	}

	/* get one device id */
	ret = clGetDeviceIDs(platforms[i], getDeviceType(), num_devices,
			devices, NULL);
	if (CL_SUCCESS != ret) {
		print_error ("Error getting device IDs: %d", ret);
		exit(EXIT_FAILURE);
	}

	ret = clGetDeviceInfo(*devices, CL_DEVICE_IMAGE_SUPPORT, sizeof(cl_bool), &imageSupport, NULL);
	if (CL_SUCCESS != ret) {
			print_error ("Failed to get Device Info: %d", ret);
			exit(EXIT_FAILURE);
		}

	if(imageSupport == CL_FALSE)
	{
		print_error ("Failure: Images are not supported!");
				exit(EXIT_FAILURE);
	}

	/* create a context for the CPU device that was found earlier */
	context = clCreateContext(NULL, num_devices, devices, NULL, NULL, &ret);
	if (NULL == context || CL_SUCCESS != ret) {
		print_error ("Failed to create context: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* create a command queue for the CPU device */
	command_queue = clCreateCommandQueue(context, devices[0], 0, &ret);
	if (NULL == command_queue || CL_SUCCESS != ret) {
		print_error ("Failed to create a command queue: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* create buffers on the CL device */
	aImg = clCreateImage2D(context, CL_MEM_READ_ONLY, &imgFormat, aLength, 1, 0, NULL, &ret);
	if (NULL == aImg || CL_SUCCESS != ret) {
		print_error ("Failed to create a image: %d", ret);
		exit(EXIT_FAILURE);
	}

	bImg = clCreateImage2D(context, CL_MEM_READ_ONLY, &imgFormat, aLength, 1, 0, NULL, &ret);
	if (NULL == bImg || CL_SUCCESS != ret) {
		print_error ("Failed to create b image: %d", ret);
		exit(EXIT_FAILURE);
	}

	int res_bufSize = aLength;

	res_buf = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(cl_uint)
			* res_bufSize, NULL, &ret);
	if (NULL == res_buf || CL_SUCCESS != ret) {
		print_error ("Failed to create b buffer: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* read the opencl program code into a string */
	prgm_fptr = fopen(clFile, "r");
	if (NULL == prgm_fptr) {
		print_error ("%s", strerror (errno));
		exit(EXIT_FAILURE);
	}

	if (0 != stat(clFile, &prgm_sbuf)) {
		print_error ("%s", strerror (errno));
		exit(EXIT_FAILURE);
	}
	prgm_size = prgm_sbuf.st_size;

	prgm_data = malloc(prgm_size);
	if (NULL == prgm_data) {
		print_error ("Out of memory");
		exit(EXIT_FAILURE);
	}

	/* make sure all data is read from the file (just in case fread returns
	 * short) */
	offset = 0;
	while (prgm_size - offset != (count = fread(prgm_data + offset, 1,
			prgm_size - offset, prgm_fptr)))
		offset += count;

	if (0 != fclose(prgm_fptr)) {
		print_error ("%s", strerror (errno));
		exit(EXIT_FAILURE);
	}

	/* create a 'program' from the source */
	program = clCreateProgramWithSource(context, 1, (const char **) &prgm_data,
			&prgm_size, &ret);
	if (NULL == program || CL_SUCCESS != ret) {
		print_error ("Failed to create program with source: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* compile the program.. (it uses llvm or something) */
	ret = clBuildProgram(program, num_devices, devices, NULL, NULL, NULL);
	if (CL_SUCCESS != ret) {
		size_t size;
		char *log = calloc(1, 4000);
		if (NULL == log) {
			print_error ("Out of memory");
			exit(EXIT_FAILURE);
		}

		print_error ("Failed to build program: %d", ret);
		ret = clGetProgramBuildInfo(program, devices[0], CL_PROGRAM_BUILD_LOG,
				4096, log, &size);
		if (CL_SUCCESS != ret) {
			print_error ("Failed to get program build info: %d", ret);
			exit(EXIT_FAILURE);
		}

		fprintf(stderr, "Begin log:\n%s\nEnd log.\n", log);
		exit(EXIT_FAILURE);
	}

	/* pull out a reference to your kernel */
	kernel = clCreateKernel(program, "cgm_kernel", &ret);
	if (NULL == kernel || CL_SUCCESS != ret) {
		print_error ("Failed to create kernel: %d", ret);
		exit(EXIT_FAILURE);
	}

	gettimeofday(&t1, NULL);

	/* write data to these buffers */
	clEnqueueWriteImage(command_queue, aImg, CL_FALSE, origin, region, 0, 0,
			(void*) aImg, 0, NULL, NULL);
	clEnqueueWriteImage(command_queue, bImg, CL_FALSE, origin, region, 0, 0,
			(void*) bImg, 0, NULL, NULL);

	/* set your kernel's arguments */
	ret = clSetKernelArg(kernel, 0, sizeof(cl_mem), &aImg);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to set kernel argument: %d", ret);
		exit(EXIT_FAILURE);
	}
	ret = clSetKernelArg(kernel, 1, sizeof(cl_mem), &bImg);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to set kernel argument: %d", ret);
		exit(EXIT_FAILURE);
	}

	ret = clSetKernelArg(kernel, 4, sizeof(int), &gap);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to set kernel argument: %d", ret);
		exit(EXIT_FAILURE);
	}
	ret = clSetKernelArg(kernel, 5, sizeof(int), &myoffset);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to set kernel argument: %d", ret);
		exit(EXIT_FAILURE);
	}

	ret = clSetKernelArg(kernel, 6, sizeof(int), &keyLength);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to set kernel argument: %d", ret);
		exit(EXIT_FAILURE);
	}
	ret = clSetKernelArg(kernel, 7, sizeof(cl_mem), &res_buf);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to set kernel argument: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* make sure buffers have been written before executing */
	ret = clEnqueueBarrier(command_queue);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to enqueue barrier: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* enque this kernel for execution... */
	ret = clEnqueueNDRangeKernel(command_queue, kernel, 2, NULL,
			global_work_size, NULL, 0, NULL, NULL);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to enqueue kernel: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* wait for the kernel to finish executing */
	ret = clEnqueueBarrier(command_queue);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to enqueue barrier: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* copy the contents of dev_buf from the CL device to the host (CPU) */
	ret = clEnqueueReadBuffer(command_queue, res_buf, true, 0, sizeof(cl_uint)
			* aLength, results, 0, NULL, NULL);

	gettimeofday(&t2, NULL);
	elapsedTime = (t2.tv_sec - t1.tv_sec) * 1000.0; // sec to ms
	elapsedTime += (t2.tv_usec - t1.tv_usec) / 1000.0; // us to ms

	if (CL_SUCCESS != ret) {
		print_error ("Failed to copy data from device to host: %d", ret);
		exit(EXIT_FAILURE);
	}

	ret = clEnqueueBarrier(command_queue);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to enqueue barrier: %d", ret);
		exit(EXIT_FAILURE);
	}

	/* make sure the content of the buffer are what we expect */
	//for (i = 0; i < aLength; i++)
	//	printf("%d\n", results[i]);

	/* free up resources */
	ret = clReleaseKernel(kernel);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to release kernel: %d", ret);
		exit(EXIT_FAILURE);
	}

	ret = clReleaseProgram(program);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to release program: %d", ret);
		exit(EXIT_FAILURE);
	}

	ret = clReleaseMemObject(aImg);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to release memory object: %d", ret);
		exit(EXIT_FAILURE);
	}
	ret = clReleaseMemObject(bImg);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to release memory object: %d", ret);
		exit(EXIT_FAILURE);
	}

	ret = clReleaseMemObject(res_buf);
	if (CL_SUCCESS != ret) {
		print_error ("Failed to release memory object: %d", ret);
		exit(EXIT_FAILURE);
	}

	if (CL_SUCCESS != (ret = clReleaseCommandQueue(command_queue))) {
		print_error ("Failed to release command queue: %d", ret);
		exit(EXIT_FAILURE);
	}

	if (CL_SUCCESS != (ret = clReleaseContext(context))) {
		print_error ("Failed to release context: %d", ret);
		exit(EXIT_FAILURE);
	}

	matches = &results;
	return elapsedTime;
}
Ejemplo n.º 13
0
static void
clrpc_client_test2(void)
{
	int err;

	int size = 1024;

	cl_uint nplatforms = 0;
	cl_platform_id* platforms = 0;
	cl_uint nplatforms_ret;

	clGetPlatformIDs(nplatforms,platforms,&nplatforms_ret);	

	printf(  "after call one i get nplatforms_ret = %d",
		nplatforms_ret);

	if (nplatforms_ret == 0) exit(1);

	nplatforms = nplatforms_ret;
	platforms = (cl_platform_id*)calloc(nplatforms,sizeof(cl_platform_id));

	clGetPlatformIDs(nplatforms,platforms,&nplatforms_ret);

	int i;
	for(i=0;i<nplatforms;i++) {
		clrpc_dptr* tmp = ((_xobj_t*)platforms[i])->obj;
		int is_rpc;
		if ( clGetPlatformInfo(platforms[i],999,sizeof(cl_int),&is_rpc,0)==CL_SUCCESS) {
			printf(  "platforms[%d] local=%p remote=%p\n",
				i,(void*)tmp->local,
				(void*)tmp->remote);
		} else {
			printf( "platforms[%d] not RPC\n",i);
		}
	}

	char buffer[1024];
	size_t sz;
	cl_platform_id rpc_platform = 0;
	for(i=0;i<nplatforms;i++) {
		clGetPlatformInfo(platforms[i],CL_PLATFORM_NAME,1023,buffer,&sz);
		printf(  "\n [%d] CL_PLATFORM_NAME|%ld:%s|\n",i,sz,buffer);
	}

int iplat;
for(iplat=0;iplat<nplatforms;iplat++) {

printf("\n******************\nTEST PLATFORM %d\n*************\n\n",iplat);

	cl_uint ndevices = 0;
	cl_device_id* devices = 0;
	cl_uint ndevices_ret;

	clGetDeviceIDs(platforms[iplat],CL_DEVICE_TYPE_ALL,
		ndevices,devices,&ndevices_ret);

	printf(  "after call one i get ndevices_ret = %d\n", ndevices_ret);

	if (ndevices_ret > 10) exit(-1);

	ndevices = ndevices_ret;
	devices = (cl_device_id*)calloc(ndevices,sizeof(cl_device_id));

	clGetDeviceIDs(platforms[iplat],CL_DEVICE_TYPE_ALL,
		ndevices,devices,&ndevices_ret);

	if (!ndevices_ret) {
		//printf("no devices, stopping.\n");
		//exit(1);
		printf("no devices, skipping.\n");
		continue;
	}

	for(i=0;i<ndevices;i++) {
		clrpc_dptr* tmp = ((_xobj_t*)devices[i])->obj;
		clGetDeviceInfo(devices[i],CL_DEVICE_NAME,1023,buffer,&sz);
		printf(  "CL_DEVICE_NAME |%s|\n",buffer);
		cl_platform_id tmpid;
		clGetDeviceInfo(devices[i],CL_DEVICE_PLATFORM,sizeof(tmpid),&tmpid,&sz);
		printf("%p\n",platforms[iplat]); fflush(stdout);
		printf("%p\n",tmpid); fflush(stdout);
		clGetPlatformInfo(tmpid,CL_PLATFORM_NAME,1023,buffer,&sz);
		printf(  "\n [%d] CL_PLATFORM_NAME|%ld:%s|\n",i,sz,buffer);
	}

	cl_context_properties ctxprop[] = { 
		CL_CONTEXT_PLATFORM, (cl_context_properties)platforms[iplat], 0 };

	printf("i am setting this: prop[%d] %p\n",iplat,platforms[iplat]);

	cl_context ctx = clCreateContext(ctxprop,ndevices,devices, 0,0,&err);

	cl_command_queue* cmdq 
		= (cl_command_queue*) calloc(ndevices,sizeof(cl_command_queue));

	for(i=0;i<ndevices;i++) {
		cmdq[i] = clCreateCommandQueue(ctx,devices[i],0,&err);
		printf( 	 "cmdq %d %p",i,cmdq[i]);
	}

	cl_mem a_buf = clCreateBuffer(ctx,CL_MEM_READ_WRITE,size*sizeof(int),
		0,&err);
	cl_mem b_buf = clCreateBuffer(ctx,CL_MEM_READ_WRITE,size*sizeof(int),
		0,&err);
	cl_mem c_buf = clCreateBuffer(ctx,CL_MEM_READ_WRITE,size*sizeof(int),
		0,&err);
	cl_mem d_buf = clCreateBuffer(ctx,CL_MEM_READ_WRITE,size*sizeof(int),
		0,&err);

	int* a = (int*)malloc(1024*sizeof(int));
	int* b = (int*)malloc(1024*sizeof(int));
	int* c = (int*)malloc(1024*sizeof(int));
	int* d = (int*)malloc(1024*sizeof(int));

	char* prgsrc[] = { 
		"__kernel void my_kern( int n, __global int* a, __global int* b )\n"
		" { int i = get_global_id(0); int tmp = 0; int j; for(j=0;j<n;j++) tmp += a[i] * a[j]; b[i] = tmp; }\n" 
	};
	size_t prgsrc_sz = strlen(prgsrc[0]) + 1;

	cl_program prg = clCreateProgramWithSource(ctx,1,
		(const char**)prgsrc,&prgsrc_sz,&err);

	clBuildProgram(prg,ndevices,devices,0,0,0);

	cl_kernel krn = clCreateKernel(prg,"my_kern",&err);

int idev;
for(idev=0;idev<ndevices;idev++) {
printf("\n******************\nTEST DEVICE %d(%d)\n*************\n\n",idev,iplat);

	for(i=0;i<size;i++) a[i] = i*10;
	for(i=0;i<size;i++) b[i] = i*10+1;
	for(i=0;i<size;i++) c[i] = 0;
	for(i=0;i<size;i++) d[i] = 0;

	cl_event ev[8];

	for(i=0;i<32;i++) printf("%d/",a[i]); printf("\n");
	for(i=0;i<32;i++) printf("%d/",b[i]); printf("\n");

	clEnqueueWriteBuffer(cmdq[idev],a_buf,CL_FALSE,0,size*sizeof(int),a,
		0,0,&ev[0]);
	clEnqueueWriteBuffer(cmdq[idev],b_buf,CL_FALSE,0,size*sizeof(int),b,
		1,ev,&ev[1]);
	clEnqueueWriteBuffer(cmdq[idev],c_buf,CL_FALSE,0,size*sizeof(int),c,
		2,ev,&ev[2]);
	clEnqueueWriteBuffer(cmdq[idev],d_buf,CL_FALSE,0,size*sizeof(int),d,
		3,ev,&ev[3]);

	size_t offset = 0; 
	size_t gwsz = 128;
	size_t lwsz = 16;

	clSetKernelArg(krn,0,sizeof(int),&size);
	clSetKernelArg(krn,1,sizeof(cl_mem),&a_buf);
	clSetKernelArg(krn,2,sizeof(cl_mem),&c_buf);
	clEnqueueNDRangeKernel(cmdq[idev],krn,1,&offset,&gwsz,&lwsz,4,ev,&ev[4]);

	clSetKernelArg(krn,1,sizeof(cl_mem),&b_buf);
	clSetKernelArg(krn,2,sizeof(cl_mem),&d_buf);
	clEnqueueNDRangeKernel(cmdq[idev],krn,1,&offset,&gwsz,&lwsz,5,ev,&ev[5]);

	clEnqueueReadBuffer(cmdq[idev],c_buf,CL_FALSE,0,size*sizeof(int),c,
		6,ev,&ev[6]);
	clEnqueueReadBuffer(cmdq[idev],d_buf,CL_FALSE,0,size*sizeof(int),d,
		7,ev,&ev[7]);

	clFlush(cmdq[idev]);

	clWaitForEvents(8,ev);

	for(i=0;i<32;i++) printf("%d/",c[i]); printf("\n");
	for(i=0;i<32;i++) printf("%d/",d[i]); printf("\n");

	for(i=0;i<8;i++) clReleaseEvent(ev[i]);

}

	clReleaseKernel(krn);

	clReleaseProgram(prg);

	clReleaseMemObject(a_buf);
	clReleaseMemObject(b_buf);
	clReleaseMemObject(c_buf);
	clReleaseMemObject(d_buf);

	clReleaseCommandQueue(cmdq[0]);
	clReleaseContext(ctx);

//	printf("sleeping ...\n");
//	sleep(1);

}

//	clrpc_final();

}
Ejemplo n.º 14
0
////////////////////////////////////////////////////////////////////////////////////
//  Measure the local memoy to local memoy bandwidth.
////////////////////////////////////////////////////////////////////////////////////
int measureLocalMemory(cl_device_id device_id, cl_context context, cl_command_queue commands, 
	unsigned int type, int f4, unsigned int elements, unsigned int iterations, bool larg, double time_taken[2]) {

    cl_int err = CL_SUCCESS;
 	const char* source_path = "mem_streaming.cl";
	char buf[512];

    int elementsToAlloc = elements;

	size_t local, global;

    for(size_t ws = 0; ws <= 1; ++ws)
    {
        if(ws == 0)
        {
           // Execute the kernel using just one single workitem
            local = 1;
            global = 1;
        }
        else
        {
            // Execute the kernel using the max number of threads on each processor
    	    _DEVICE_INFO* info = get_device_info(device_id);
            size_t* tmp = info->max_work_item_sizes;
            local = tmp[0];
            free(tmp);
            global = info->max_compute_units;

            while(local > elements)
                local /= 2;

            global *= local;
        }

        if(type == 1)
            elementsToAlloc = (elements + local-1)/local;

        if(f4 == 0)
            sprintf(buf, "#define dtype float\n");
        else
            sprintf(buf, "#define dtype float%d\n", (int)pow(2.0, f4));

        sprintf(buf+strlen(buf), "#define VEC %d\n#define ELEMENTS %d\n#define localRange %lu\n", f4, elementsToAlloc, local);

        if(larg)
            sprintf(buf+strlen(buf), "#define LARG\n");

		cl_program program = load_kernel(source_path, context, buf);
		if(!program)
		{
			fprintf(stderr, "Error: Failed to create compute program!\n");
			return 1;
		}

		// Build the program executable
		err = clBuildProgram(program, 0, NULL, NULL, NULL, NULL);
		if(err != CL_SUCCESS)
		{
			size_t len;
			char buffer[8096];
		
			fprintf(stderr, "Error: Failed to build program executable!\n");
			clGetProgramBuildInfo(program, device_id, CL_PROGRAM_BUILD_LOG, sizeof(buffer), buffer, &len);
			fprintf(stderr, "%s\n", buffer);
			return 1;
		}
	
		// Create the compute kernel 
        cl_kernel kernel;
        switch(type)
        {
        case 1:
		    kernel = clCreateKernel(program, "private_mem", &err);
            break;
        case 2:
		    kernel = clCreateKernel(program, "global_mem", &err);
            break;
        default:
    	    kernel = clCreateKernel(program, "local_mem", &err);
        }

		if (!kernel || err != CL_SUCCESS)
		{
			fprintf(stderr, "Error: Failed to create compute kernel!\n");
			return 1;
		}

 
        float* hOutput = (float*)malloc(global * sizeof(float));
        memset(hOutput, 0, global * sizeof(float));

        cl_mem output = clCreateBuffer(context, CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR, sizeof(float) * global, hOutput, NULL);

        if (!output || err != CL_SUCCESS)
        {
            fprintf(stderr, "Error: Failed to allocate device memory!\n");
            return 1;
        }    

        // Set the arguments to our compute kernel
        err = CL_SUCCESS;
        err |= clSetKernelArg(kernel, 0, sizeof(cl_mem), &output);
        cl_mem g1, g2;
        switch(type)
        {
        case 1:
            break;
        case 2:
            switch(f4)
            {
                case(1):
                    g1 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float2) * elements, NULL, NULL);
                    g2 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float2) * elements*2, NULL, NULL);
                    break;
                case(2):
                    g1 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float4) * elements, NULL, NULL);
                    g2 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float4) * elements*2, NULL, NULL);
                    break;
                case(3):
                    g1 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float8) * elements, NULL, NULL);
                    g2 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float8) * elements*2, NULL, NULL);
                    break;
                case(4):
                    g1 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float16) * elements, NULL, NULL);
                    g2 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float16) * elements*2, NULL, NULL);
                    break;
                default:
                    g1 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float) * elements, NULL, NULL);
                    g2 = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_float) * elements*2, NULL, NULL);
                    break;
                break;
            }
            err |= clSetKernelArg(kernel, 1, sizeof(cl_mem), &g1);
            err |= clSetKernelArg(kernel, 2, sizeof(cl_mem), &g2);
            break;
        default:
            if(larg)
            switch(f4)
            {
                case(1):
                    err |= clSetKernelArg(kernel, 1, sizeof(cl_float2)*elements, NULL);
                    err |= clSetKernelArg(kernel, 2, sizeof(cl_float2)*elements*2, NULL);
                    break;
                case(2):
                    err |= clSetKernelArg(kernel, 1, sizeof(cl_float4)*elements, NULL);
                    err |= clSetKernelArg(kernel, 2, sizeof(cl_float4)*elements*2, NULL);
                    break;
                case(3):
                    err |= clSetKernelArg(kernel, 1, sizeof(cl_float8)*elements, NULL);
                    err |= clSetKernelArg(kernel, 2, sizeof(cl_float8)*elements*2, NULL);
                    break;
                case(4):
                    err |= clSetKernelArg(kernel, 1, sizeof(cl_float8)*elements, NULL);
                    err |= clSetKernelArg(kernel, 2, sizeof(cl_float8)*elements*2, NULL);
                    break;
                default:
                    err |= clSetKernelArg(kernel, 1, sizeof(cl_float)*elements, NULL);
                    err |= clSetKernelArg(kernel, 2, sizeof(cl_float)*elements*2, NULL);
                    break;
                break;
            }
        }
        if (err != CL_SUCCESS)
        {
            fprintf(stderr, "Error: Failed to set kernel arguments! %d\n", err);
            return 1;
        }

		// warmup
		for(unsigned i = 0; i < WARMUP_CYCLES; ++i) 
		{
            err = clEnqueueNDRangeKernel(commands, kernel, 1, NULL, &global, &local, 0, NULL, NULL);
			clFinish(commands);
		}

	    // start actual measurement
		unsigned long start_time = current_msecs();
        for(unsigned i = 0; i < iterations; ++i)
        {
            err = clEnqueueNDRangeKernel(commands, kernel, 1, NULL, &global, &local, 0, NULL, NULL);
	        if (err)
            {
                fprintf(stderr, "Error %i: Failed to execute kernel!\n%s\n", err, oclErrorString(err));
                return 1;
            }
            clFlush(commands);
        }
        clFinish(commands);
		time_taken[ws] = elapsed_msecs(start_time) / 1000.0;

/*
        cl_event read;
        err = clEnqueueReadBuffer(commands, output, CL_FALSE, 0, global*sizeof(float), hOutput, 0, NULL, &read);
	    if (err)
        {
            fprintf(stderr, "Error %i: Failed read buffer!\n%s\n", err, oclErrorString(err));
            return 1;
        }

        clWaitForEvents(1, &read);

        for(size_t i = 0; i < global; ++i)
            printf(", %d %f ", i, hOutput[i]);
        printf("\n\n");
*/
        free(hOutput);
        clReleaseMemObject(output);
        if(type == 2)
        {
            clReleaseMemObject(g1);
            clReleaseMemObject(g2);
        }
		clReleaseProgram(program);
		clReleaseKernel(kernel);
    }

	
	return err;
}
Ejemplo n.º 15
0
inline void vector_sum(const int  arraySize, 
                       const double* inputA, 
                       const double* inputB, 
                             double* output)
{ 
    /* Allocate memory buffers */
    /*
    * Ask the OpenCL implementation to allocate buffers for the data.
    * We ask the OpenCL implemenation to allocate memory rather than 
    * allocating it on the CPU to avoid having to copy the data later.
    * The read/write flags relate to accesses to the memory from within 
    * the kernel.
    */

    bool createMemoryObjectSuccess = true;
    int numberOfMemoryObjects = 3;
    cl_mem memoryObjects[3] = {0, 0, 0};
    int errorNumber = 0;

    int bufferSize = arraySize*sizeof(double);

    memoryObjects[0] = clCreateBuffer(context, 
            CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR, 
            bufferSize, (void*)inputA, &errorNumber);
    checkErr(errorNumber, "Failed to create buffer, 1.");
    
    memoryObjects[1] = clCreateBuffer(context, 
            CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR, 
            bufferSize, (void*)inputB, &errorNumber);
    checkErr(errorNumber, "Failed to create buffer, 2.");
    
    memoryObjects[2] = clCreateBuffer(context, 
            CL_MEM_WRITE_ONLY | CL_MEM_USE_HOST_PTR, 
            bufferSize, output, &errorNumber);
    checkErr(errorNumber, "Failed to create buffer, 3.");

    /* Enqueue commands and kernels */
    /* Enqueue to the command queues the commands that control the sequence 
     * and synchronization of kernel execution, reading and writing of data,
     * and manipulation of memory objects
     */

    /* Execute a kernel function */
    /* Call clSetKernelArg() for each parameter in the kernel */
    bool setKernelArgumentsSuccess = true;
    setKernelArgumentsSuccess &= checkSuccess(clSetKernelArg(kernel, 0, 
                                        sizeof(cl_mem), &memoryObjects[0]));
    setKernelArgumentsSuccess &= checkSuccess(clSetKernelArg(kernel, 1, 
                                        sizeof(cl_mem), &memoryObjects[1]));
    setKernelArgumentsSuccess &= checkSuccess(clSetKernelArg(kernel, 2, 
                                        sizeof(cl_mem), &memoryObjects[2]));
    if (not setKernelArgumentsSuccess) {
        cleanUpOpenCL();
        std::cerr << "Failed setting OpenCL kernel arguments. " << __FILE__ 
                  << ":"<< __LINE__ << std::endl;
        exit(1);
    }

    /* Determine the work-group size and index space for the kernel */
    const size_t globalWorkSize[1] = {arraySize};
    const size_t localWorkSize[1] = { 1 };

    /* Enqueue the kernel for execution in the command queue */
    //for (int j = 0; j < ITER; j++) {
        if (not checkSuccess(clEnqueueNDRangeKernel(commandQueue, kernel, 1, 
                NULL, globalWorkSize, localWorkSize, 0, NULL, NULL))) {
            
            cleanUpOpenCL();
            std::cerr << "Failed enqueuing the kernel. " << __FILE__ << ":" 
                      << __LINE__ <<std::endl;
            exit(1);
        }
    //}

    /* Get a pointer to the output data */
    output = (double*)clEnqueueMapBuffer(commandQueue, 
                    memoryObjects[2], CL_TRUE, CL_MAP_READ, 0, 
                    arraySize, 0, NULL, NULL, &errorNumber);

    if (not checkSuccess(errorNumber)) {

        cleanUpOpenCL();
        std::cerr << "Failed to map buffer " << __FILE__ << ":"
                  << __LINE__ << std::endl;
        exit(1); 
    }

    /* Wait for kernel execution */
    if (not checkSuccess(clFinish(commandQueue))) {

        cleanUpOpenCL();
        std::cerr << "Failed waiting for kernel execution to finish. "
                  << __FILE__ << ":"<< __LINE__ << std::endl;
        exit(1);
    }


    /* Unmap the memory objects as we finished using them in the CPU */
    if (not checkSuccess(clReleaseMemObject(memoryObjects[0]))) {

        cleanUpOpenCL();
        std::cerr << "Unmapping memory objects failed " << __FILE__ << ":"
                  << __LINE__ << std::endl;
        exit(1);
    }
    if (not checkSuccess(clReleaseMemObject(memoryObjects[1]))) {

        cleanUpOpenCL();
        std::cerr << "Unmapping memory objects failed " << __FILE__ << ":"
                  << __LINE__ << std::endl;
        exit(1);
    }
    if (not checkSuccess(clEnqueueUnmapMemObject(commandQueue, 
                    memoryObjects[2], output, 0, NULL, NULL))) {

        cleanUpOpenCL();
        std::cerr << "Unmapping memory objects failed " << __FILE__ << ":"
                  << __LINE__ << std::endl;
        exit(1);
    }
}
Ejemplo n.º 16
0
END_TEST

START_TEST (test_read_write_image)
{
    cl_device_id device;
    cl_context ctx;
    cl_command_queue queue;
    cl_mem image2d, part2d;
    cl_int result;

    cl_platform_id platform      = 0;
    cl_uint        num_platforms = 0;
    clGetPlatformIDs(1, &platform, &num_platforms);

    unsigned char image2d_data_24bpp[3*3*4] = {
        255, 0, 0, 0,       0, 255, 0, 0,       128, 128, 128, 0,
        0, 0, 255, 0,       255, 255, 0, 0,     0, 128, 0, 0,
        255, 128, 0, 0,     128, 0, 255, 0,     0, 0, 0, 0
    };

    unsigned char image2d_part_24bpp[2*2*4] = {
        255, 0, 0, 0,       0, 255, 0, 0,
        0, 0, 255, 0,       255, 255, 0, 0
    };

    unsigned char image2d_buffer[3*3*4];
    unsigned char image2d_part[2*2*4];

    cl_image_format fmt;

    fmt.image_channel_data_type = CL_UNORM_INT8;
    fmt.image_channel_order = CL_RGBA;

    size_t origin[3] = {0, 0, 0};
    size_t region[3] = {3, 3, 1};

    result = clGetDeviceIDs(platform, CL_DEVICE_TYPE_DEFAULT, 1, &device, 0);
    fail_if(
        result != CL_SUCCESS,
        "unable to get the default device"
    );

    ctx = clCreateContext(0, 1, &device, 0, 0, &result);
    fail_if(
        result != CL_SUCCESS || ctx == 0,
        "unable to create a valid context"
    );

    queue = clCreateCommandQueue(ctx, device, 0, &result);
    fail_if(
        result != CL_SUCCESS || queue == 0,
        "cannot create a command queue"
    );

    image2d = clCreateImage2D(ctx, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR, &fmt,
                              3, 3, 0, image2d_buffer, &result);
    fail_if(
        result != CL_SUCCESS || image2d == 0,
        "cannot create a valid 3x3 image2D"
    );

    part2d = clCreateImage2D(ctx, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR, &fmt,
                             2, 2, 0, image2d_part, &result);
    fail_if(
        result != CL_SUCCESS || image2d == 0,
        "cannot create a valid 2x2 image2D"
    );

    // Write data in buffer
    result = clEnqueueWriteImage(queue, image2d, 1, origin, region, 0, 0,
                                 image2d_data_24bpp, 0, 0, 0);
    fail_if(
        result != CL_SUCCESS,
        "cannot enqueue a blocking write image event"
    );

    // Read it back
    region[0] = 2;
    region[1] = 2;

    result = clEnqueueReadImage(queue, image2d, 1, origin, region, 0, 0,
                                image2d_part, 0, 0, 0);
    fail_if(
        result != CL_SUCCESS,
        "cannot enqueue a blocking read image event"
    );

    // Compare
 #if 0 // images not supported
    fail_if(
        std::memcmp(image2d_part, image2d_part_24bpp, sizeof(image2d_part)) != 0,
        "reading and writing images doesn't produce the correct result"
    );
#endif

    // Read it back using a buffer
    cl_event event;
    std::memset(image2d_part, 0, sizeof(image2d_part));

    result = clEnqueueCopyImage(queue, image2d, part2d, origin, origin,
                                region, 0, 0, &event);
    fail_if(
        result != CL_SUCCESS,
        "unable to enqueue a copy image event"
    );

    result = clWaitForEvents(1, &event);
    fail_if(
        result != CL_SUCCESS,
        "unable to wait for events"
    );

    // Compare
#if 0 // images not supported
    fail_if(
        std::memcmp(image2d_part, image2d_part_24bpp, sizeof(image2d_part)) != 0,
        "copying images doesn't produce the correct result"
    );
#endif

    clReleaseEvent(event);
    clReleaseMemObject(part2d);
    clReleaseMemObject(image2d);
    clReleaseCommandQueue(queue);
    clReleaseContext(ctx);
}
Ejemplo n.º 17
0
int main(int argc, char **argv)
{
  /* test name */
  char name[] = "test_sampler_address_clamp";
  size_t global_work_size[1] = { 1 }, local_work_size[1]= { 1 };
  size_t srcdir_length, name_length, filename_size;
  char *filename = NULL;
  char *source = NULL;
  cl_device_id devices[1];
  cl_context context = NULL;
  cl_command_queue queue = NULL;
  cl_program program = NULL;
  cl_kernel kernel = NULL;
  cl_int result;
  int retval = -1;

  /* image parameters */
  cl_uchar4 *imageData;
  cl_image_format image_format;
  cl_image_desc image_desc;

  printf("Running test %s...\n", name);
  memset(&image_desc, 0, sizeof(cl_image_desc));
  image_desc.image_type = CL_MEM_OBJECT_IMAGE2D;
  image_desc.image_width = 4;
  image_desc.image_height = 4;
  image_format.image_channel_order = CL_RGBA;
  image_format.image_channel_data_type = CL_UNSIGNED_INT8;
  imageData = (cl_uchar4*)malloc (4 * 4 * sizeof(cl_uchar4));
  
  if (imageData == NULL)
    {
      puts("out of host memory\n");
      goto error;
    }
  memset (imageData, 1, 4*4*sizeof(cl_uchar4));

  /* determine file name of kernel source to load */
  srcdir_length = strlen(SRCDIR);
  name_length = strlen(name);
  filename_size = srcdir_length + name_length + 16;
  filename = (char *)malloc(filename_size + 1);
  if (!filename) 
    {
      puts("out of memory");
      goto error;
    }
  
  snprintf(filename, filename_size, "%s/%s.cl", SRCDIR, name);
  
  /* read source code */
  source = poclu_read_file (filename);
  TEST_ASSERT (source != NULL && "Kernel .cl not found.");

  /* setup an OpenCL context and command queue using default device */
  context = poclu_create_any_context();
  if (!context) 
    {
      puts("clCreateContextFromType call failed\n");
      goto error;
    }

  result = clGetContextInfo(context, CL_CONTEXT_DEVICES,
                            sizeof(cl_device_id), devices, NULL);
  if (result != CL_SUCCESS) 
    {
      puts("clGetContextInfo call failed\n");
      goto error;
    }

  queue = clCreateCommandQueue(context, devices[0], 0, NULL); 
  if (!queue) 
    {
      puts("clCreateCommandQueue call failed\n");
      goto error;
    }

  /* Create image */

  cl_mem image = clCreateImage (context, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR,
                                &image_format, &image_desc, imageData, &result);
  if (result != CL_SUCCESS)
    {
      puts("image creation failed\n");
      goto error;
    }


  /* create and build program */
  program = clCreateProgramWithSource (context, 1, (const char **)&source,
                                       NULL, NULL);
  if (!program) 
    {
      puts("clCreateProgramWithSource call failed\n");
      goto error;
    }

  result = clBuildProgram(program, 0, NULL, NULL, NULL, NULL); 
  if (result != CL_SUCCESS) 
    {
      puts("clBuildProgram call failed\n");
      goto error;
    }

  /* execute the kernel with give name */
  kernel = clCreateKernel(program, name, NULL); 
  if (!kernel) 
    {
      puts("clCreateKernel call failed\n");
      goto error;
    }

   result = clSetKernelArg( kernel, 0, sizeof(cl_mem), &image);
   if (result)
     {
       puts("clSetKernelArg failed\n");
       goto error;
     }

  result = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, global_work_size, 
                                  local_work_size, 0, NULL, NULL); 
  if (result != CL_SUCCESS) 
    {
      puts("clEnqueueNDRangeKernel call failed\n");
      goto error;
    }

  result = clFinish(queue);
  if (result == CL_SUCCESS)
    retval = 0;

error:

  if (image)
    {
      clReleaseMemObject (image);
    }

  if (kernel) 
    {
      clReleaseKernel(kernel);
    }
  if (program) 
    {
      clReleaseProgram(program);
    }
  if (queue) 
    {
      clReleaseCommandQueue(queue);
    }
  if (context) 
    {
      clUnloadCompiler ();
      clReleaseContext (context);
    }
  if (source) 
    {
      free(source);
    }
  if (filename)
    {
      free(filename);
    }
  if (imageData)
    {
      free(imageData);
    }


  if (retval) 
    {
      printf("FAIL\n");
      return 1;
    }
 
  printf("OK\n");
  return 0;
}
Ejemplo n.º 18
0
END_TEST

START_TEST (test_copy_image_buffer)
{
    cl_device_id device;
    cl_context ctx;
    cl_command_queue queue;
    cl_mem image, buffer;
    cl_int result;
    cl_event event;

    cl_platform_id platform      = 0;
    cl_uint        num_platforms = 0;
    clGetPlatformIDs(1, &platform, &num_platforms);

    unsigned char image_buffer[3*3*4] = {
        255, 0, 0, 0,       0, 255, 0, 0,       0, 0, 255, 0,
        128, 0, 0, 0,       0, 128, 0, 0,       0, 0, 128, 0,
        64, 0, 0, 0,        0, 64, 0, 0,        0, 0, 64, 0
    };

    // Square that will be put in image_buffer at (1, 0)
    unsigned char buffer_buffer[2*2*4+1] = {
        33, // Oh, a padding !
        255, 255, 255, 0,   255, 0, 255, 0,
        0, 255, 255, 0,     255, 255, 0, 0
    };

    // What we must get once re-reading 2x2 rect at (1, 1)
    unsigned char correct_data[2*2*4] = {
        0, 255, 255, 0,     255, 255, 0, 0,
        0, 64, 0, 0,        0, 0, 64, 0
    };

    cl_image_format fmt;

    fmt.image_channel_data_type = CL_UNORM_INT8;
    fmt.image_channel_order = CL_RGBA;

    size_t origin[3] = {1, 0, 0};
    size_t region[3] = {2, 2, 1};

    result = clGetDeviceIDs(platform, CL_DEVICE_TYPE_DEFAULT, 1, &device, 0);
    fail_if(
        result != CL_SUCCESS,
        "unable to get the default device"
    );

    ctx = clCreateContext(0, 1, &device, 0, 0, &result);
    fail_if(
        result != CL_SUCCESS || ctx == 0,
        "unable to create a valid context"
    );

    queue = clCreateCommandQueue(ctx, device, 0, &result);
    fail_if(
        result != CL_SUCCESS || queue == 0,
        "cannot create a command queue"
    );

    image = clCreateImage2D(ctx, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR, &fmt,
                            3, 3, 0, image_buffer, &result);
    fail_if(
        result != CL_SUCCESS,
        "unable to create a 3x3 bgra image"
    );

    buffer = clCreateBuffer(ctx, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR,
                            sizeof(buffer_buffer), buffer_buffer, &result);
    fail_if(
        result != CL_SUCCESS,
        "unable to create a buffer object"
    );

    // Write buffer in image
    result = clEnqueueCopyBufferToImage(queue, buffer, image, 1, origin, region,
                                        0, 0, &event);
    fail_if(
        result != CL_SUCCESS,
        "unable to queue a copy buffer to image event, buffer offset 1, image 2x2 @ (1, 0)"
    );

    result = clWaitForEvents(1, &event);
    fail_if(
        result != CL_SUCCESS,
        "cannot wait for event"
    );

    clReleaseEvent(event);

    // Read it back into buffer, again with an offset
    origin[1] = 1;
    result = clEnqueueCopyImageToBuffer(queue, image, buffer, origin, region, 1,
                                        0, 0, &event);
    fail_if(
        result != CL_SUCCESS,
        "unable to queue a copy image to buffer event, buffer offset 1, image 2x2 @ (1, 1)"
    );

    result = clWaitForEvents(1, &event);
    fail_if(
        result != CL_SUCCESS,
        "cannot wait for event"
    );

#if 0 // images not supported
    fail_if(
        std::memcmp(buffer_buffer + 1, correct_data, sizeof(correct_data)) != 0,
        "copying data around isn't working the expected way"
    );
#endif


    // Map the image and check pointers
    unsigned char *mapped;
    size_t row_pitch;

    origin[0] = 0;
    origin[1] = 0;
    origin[2] = 0;

    mapped = (unsigned char *)clEnqueueMapImage(queue, image, 1, CL_MAP_READ,
                                                origin, region, &row_pitch, 0, 0,
                                                0, 0, &result);
    fail_if(
        result != CL_SUCCESS,
        "unable to map an image"
    );
#if 0 // images not supported
    fail_if(
        mapped != image_buffer,
        "mapped aread doesn't match host ptr"
    );
#endif

    clReleaseEvent(event);
    clReleaseMemObject(image);
    clReleaseMemObject(buffer);
    clReleaseCommandQueue(queue);
    clReleaseContext(ctx);
}
Ejemplo n.º 19
0
static cl_int opencl_plugin_init_mesh_buffers(opencl_plugin plugin,
                                              cl_int mesh_data_count,
                                              mesh_data *mesh_data_list)
{
    cl_int err;
    cl_int i;
    cl_mem new_vertex_buffer = NULL, new_triangle_buffer = NULL;
    cl_int total_num_vertices = 0, total_num_triangles = 0;

    assert(plugin != NULL);
    assert(mesh_data_count >= 0);
    assert(mesh_data_list != NULL);

    for (i = 0; i < mesh_data_count; i++) {
        total_num_vertices += mesh_data_list[i].num_vertices;
        total_num_triangles += mesh_data_list[i].num_triangles;
    }

    if (total_num_vertices > plugin->vertex_buffer_capacity) {
        /* Current buffer not big enough, free old buffer first */
        if (plugin->vertex_buffer) {
            clReleaseMemObject(plugin->vertex_buffer);
            plugin->vertex_buffer = NULL;
        }

        plugin->vertex_buffer_capacity = 0;

        /* TODO: Maybe better dynamic resizing (factor = 1.5)? */
        new_vertex_buffer =
            clCreateBuffer(plugin->context, CL_MEM_READ_ONLY,
                           sizeof(float) * 3 * total_num_vertices, NULL, &err);
        CHECK_CL_ERROR(err);

        plugin->vertex_buffer_capacity = total_num_vertices;
        plugin->vertex_buffer = new_vertex_buffer;
        new_vertex_buffer = NULL;
    }

    if (total_num_triangles > plugin->triangle_buffer_capacity) {
        /* Current buffer not big enough, free old buffer first */
        if (plugin->triangle_buffer) {
            clReleaseMemObject(plugin->triangle_buffer);
            plugin->triangle_buffer = NULL;
        }

        plugin->triangle_buffer_capacity = 0;

        /* TODO: Maybe better dynamic resizing (factor = 1.5)? */
        new_triangle_buffer =
            clCreateBuffer(plugin->context, CL_MEM_READ_ONLY,
                           sizeof(cl_int) * 3 * total_num_triangles, NULL, &err);
        CHECK_CL_ERROR(err);

        plugin->triangle_buffer_capacity = total_num_triangles;
        plugin->triangle_buffer = new_triangle_buffer;
        new_triangle_buffer = NULL;
    }

    total_num_vertices = 0;
    total_num_triangles = 0;
    for (i = 0; i < mesh_data_count; i++) {
        mesh_data *mesh_data = &mesh_data_list[i];

        err = clEnqueueWriteBuffer(
            plugin->queue, plugin->vertex_buffer, CL_FALSE,
            sizeof(float) * 3 * total_num_vertices,
            sizeof(float) * 3 * mesh_data->num_vertices, mesh_data->vertices,
            0, NULL, NULL);
        CHECK_CL_ERROR(err);

        err = clEnqueueWriteBuffer(
            plugin->queue, plugin->triangle_buffer, CL_FALSE,
            sizeof(cl_int) * 3 * total_num_triangles,
            sizeof(cl_int) * 3 * mesh_data->num_triangles, mesh_data->triangles,
            0, NULL, NULL);
        CHECK_CL_ERROR(err);

        total_num_vertices += mesh_data_list[i].num_vertices;
        total_num_triangles += mesh_data_list[i].num_triangles;
    }

    /* Wait for all buffer writes to finish, TODO: investigate this further */
    err = clFinish(plugin->queue);
    CHECK_CL_ERROR(err);

    return 0;
error:
    if (new_vertex_buffer)
        clReleaseMemObject(new_vertex_buffer);
    if (new_triangle_buffer)
        clReleaseMemObject(new_triangle_buffer);
    return -1;
}
Ejemplo n.º 20
0
Archivo: main.cpp Proyecto: rotty11/Pfc
/**
 * @brief Main principal
 * @param argc El número de argumentos del programa
 * @param argv Cadenas de argumentos del programa
 * @return Nada si es correcto o algún número negativo si es incorrecto
 */
int main( int argc, char** argv ) {

	if(argc != 2)
		return -1;

	// Medimos tiempo para el programa
	const double start_time = getCurrentTimestamp();

	FILE *kernels;
	char *source_str;
	size_t source_size, work_items;

	// OpenCL runtime configuration
	unsigned num_devices;
	cl_platform_id platform_ids[3];
	cl_uint ret_num_platforms;
	cl_device_id device_id;
	cl_context context = NULL;
	cl_command_queue command_queue;
	cl_program program = NULL;
	cl_int ret;
	cl_kernel kernelINIT;
	cl_event kernel_event, finish_event;
	cl_mem objPARTICULAS;

	// Abrimos el fichero que contiene el kernel
	fopen_s(&kernels, "initparticulasCPU.cl", "r");
	if (!kernels) {
		fprintf(stderr, "Fallo al cargar el kernel\n");
		exit(-1);
	}	
	source_str = (char *) malloc(0x100000);
	source_size = fread(source_str, 1, 0x100000, kernels);
	fclose(kernels);

	// Obtenemos los IDs de las plataformas disponibles
	if( clGetPlatformIDs(3, platform_ids, &ret_num_platforms) != CL_SUCCESS) {
		printf("No se puede obtener id de la plataforma");
		return -1;
	}

	// Intentamos obtener un dispositivo CPU soportado
	if( clGetDeviceIDs(platform_ids[1], CL_DEVICE_TYPE_CPU, 1, &device_id, &num_devices) != CL_SUCCESS) {
		printf("No se puede obtener id del dispositivo");
		return -1;
	}
	clGetDeviceInfo(device_id, CL_DEVICE_MAX_COMPUTE_UNITS, sizeof(cl_uint), &work_items, NULL);
 
	// Creación de un contexto OpenCL
	context = clCreateContext(NULL, 1, &device_id, NULL, NULL, &ret);
 
	// Creación de una cola de comandos
	command_queue = clCreateCommandQueue(context, device_id, CL_QUEUE_PROFILING_ENABLE, &ret);

	// Creación de un programa kernel desde un fichero de código
	program = clCreateProgramWithSource(context, 1, (const char **)&source_str, (const size_t *)&source_size, &ret);
	ret = clBuildProgram(program, 1, &device_id, NULL, NULL, NULL);
	if (ret != CL_SUCCESS) {
		size_t len;
		char buffer[2048];
		printf("Error: ¡Fallo al construir el programa ejecutable!\n");
		clGetProgramBuildInfo(program, device_id, CL_PROGRAM_BUILD_LOG, sizeof(buffer), buffer, &len);
		printf("%s", buffer);
		exit(-1);
	}

	// Creación del kernel OpenCL
	kernelINIT = clCreateKernel(program, "calc_particles_init", &ret);

	// Creamos el buffer para las partículas y reservamos espacio ALINEADO para los datos
	size_t N = atoi(argv[1]);
	particle *particulas = (particle*) _aligned_malloc(N * sizeof(particle), 64);
	objPARTICULAS = clCreateBuffer(context, CL_MEM_WRITE_ONLY, N * sizeof(particle), NULL, &ret);
	const size_t global = 4;
	const size_t local_work_size = 1;

	// Transferimos el frame al dispositivo
	cl_event write_event;
	ret = clEnqueueWriteBuffer(command_queue, objPARTICULAS, CL_FALSE, 0, N * sizeof(particle), particulas, 0, NULL, &write_event);

	// Establecemos los argumentos del kernel
	ret = clSetKernelArg(kernelINIT, 0, sizeof(cl_mem), &objPARTICULAS);
	ret = clSetKernelArg(kernelINIT, 1, sizeof(int), &N);

	// Ejecutamos el kernel. Un work-item por cada work-group o unidad de cómputo
	ret = clEnqueueNDRangeKernel(command_queue, kernelINIT, 1, NULL, &global, &local_work_size, 1, &write_event, &kernel_event);

	// Leemos los resultados
	ret = clEnqueueReadBuffer(command_queue, objPARTICULAS, CL_FALSE, 0, N * sizeof(particle), particulas, 1, &kernel_event, &finish_event);
	
	// Esperamos a que termine de leer los resultados
	clWaitForEvents(1, &finish_event);

	// Obtenemos el tiempo del kernel y de las transferencias CPU-RAM
	cl_ulong totalKernel = getStartEndTime(kernel_event);
	cl_ulong totalRam = getStartEndTime(write_event) + getStartEndTime(finish_event);

	const double end_time = getCurrentTimestamp();

	// Obtenemos el tiempo consumido por el programa, el kernel y las transferencias de memoria
	printf("\nTiempo total del programa: %0.3f ms\n", (end_time - start_time) * 1e3);
	printf("Tiempo total consumido por el kernel: %0.3f ms\n", double(totalKernel) * 1e-6);
	printf("Tiempo total consumido en transferencias CPU-RAM: %0.3f ms\n", double(totalRam) * 1e-6);

	// Liberamos todos los recursos usados (kernels y objetos OpenCL)
	clReleaseEvent(kernel_event);
	clReleaseEvent(finish_event);
	clReleaseEvent(write_event);
	clReleaseMemObject(objPARTICULAS);
	clReleaseKernel(kernelINIT);
	clReleaseCommandQueue(command_queue);
	clReleaseProgram(program);
	clReleaseContext(context);
}
bool
runTest( int argc, const char** argv, ReduceType datatype) 
{
    int size = 1<<24;    // number of elements to reduce
    int maxThreads;

    cl_kernel reductionKernel = getReductionKernel(datatype, 0, 64, 1);        
    clReleaseKernel(reductionKernel);

    if (smallBlock) 
      maxThreads = 64;  // number of threads per block
    else
      maxThreads = 128;

    int whichKernel = 6;
    int maxBlocks = 64;
    bool cpuFinalReduction = false;
    int cpuFinalThreshold = 1;

    shrGetCmdLineArgumenti( argc, (const char**) argv, "n", &size);
    shrGetCmdLineArgumenti( argc, (const char**) argv, "threads", &maxThreads);
    shrGetCmdLineArgumenti( argc, (const char**) argv, "kernel", &whichKernel);
    shrGetCmdLineArgumenti( argc, (const char**) argv, "maxblocks", &maxBlocks);
    
    shrLog(" %d elements\n", size);
    shrLog(" %d threads (max)\n", maxThreads);

    cpuFinalReduction = (shrCheckCmdLineFlag( argc, (const char**) argv, "cpufinal") == shrTRUE);
    shrGetCmdLineArgumenti( argc, (const char**) argv, "cputhresh", &cpuFinalThreshold);

    bool runShmoo = (shrCheckCmdLineFlag(argc, (const char**) argv, "shmoo") == shrTRUE);

#ifdef GPU_PROFILING
    if (runShmoo)
    {
        shmoo<T>(1, 33554432, maxThreads, maxBlocks, datatype);
        return true;
    }
    else
#endif
    {
        // create random input data on CPU
        unsigned int bytes = size * sizeof(T);
        T* h_idata = (T*)malloc(bytes);

        for(int i=0; i<size; i++) 
        {
            // Keep the numbers small so we don't get truncation error in the sum
            if (datatype == REDUCE_INT)
                h_idata[i] = (T)(rand() & 0xFF);
            else
                h_idata[i] = (rand() & 0xFF) / (T)RAND_MAX;
        }

        int numBlocks = 0;
        int numThreads = 0;
        getNumBlocksAndThreads(whichKernel, size, maxBlocks, maxThreads, numBlocks, numThreads);
        if (numBlocks == 1) cpuFinalThreshold = 1;
        shrLog(" %d blocks\n\n", numBlocks);

        // allocate mem for the result on host side
        T* h_odata = (T*)malloc(numBlocks * sizeof(T));

        // allocate device memory and data
        cl_mem d_idata = clCreateBuffer(cxGPUContext, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, bytes, h_idata, NULL);
        cl_mem d_odata = clCreateBuffer(cxGPUContext, CL_MEM_READ_WRITE, numBlocks * sizeof(T), NULL, NULL);
      
        int testIterations = 100;
        double dTotalTime = 0.0;
        T gpu_result = 0;
        gpu_result = profileReduce<T>(datatype, size, numThreads, numBlocks, maxThreads, maxBlocks,
                                        whichKernel, testIterations, cpuFinalReduction, 
                                        cpuFinalThreshold, &dTotalTime,
                                        h_odata, d_idata, d_odata);

#ifdef GPU_PROFILING
        double reduceTime = dTotalTime/(double)testIterations;
        shrLogEx(LOGBOTH | MASTER, 0, "oclReduction, Throughput = %.4f GB/s, Time = %.5f s, Size = %u Elements, NumDevsUsed = %d, Workgroup = %u\n", 
               1.0e-9 * ((double)bytes)/reduceTime, reduceTime, size, 1, numThreads);
#endif

        // compute reference solution
        shrLog("\nComparing against Host/C++ computation...\n"); 
        T cpu_result = reduceCPU<T>(h_idata, size);
        if (datatype == REDUCE_INT)
        {
            shrLog(" GPU result = %d\n", gpu_result);
            shrLog(" CPU result = %d\n\n", cpu_result);
            shrLog("%s\n\n", (gpu_result == cpu_result) ? "PASSED" : "FAILED");
        }
        else
        {
            shrLog(" GPU result = %.9f\n", gpu_result);
            shrLog(" CPU result = %.9f\n\n", cpu_result);

            double threshold = (datatype == REDUCE_FLOAT) ? 1e-8 * size : 1e-12;
            double diff = abs((double)gpu_result - (double)cpu_result);
            shrLog("%s\n\n", (diff < threshold) ? "PASSED" : "FAILED");
        }
      
        // cleanup
        free(h_idata);
        free(h_odata);
        clReleaseMemObject(d_idata);
        clReleaseMemObject(d_odata);

        return (gpu_result == cpu_result);
    }
}
Ejemplo n.º 22
0
int main()
{
	int i,j,k;
	// nb of operations:
	const int dsize = 512;
	int nthreads = 1;
	int nbOfAverages = 1e2;
	int opsMAC = 2; // operations per MAC
	cl_short4 *in, *out;
	cl_half *ck;
	double tops; //total ops

#define NQUEUES 1
	cl_int err;
	cl_platform_id platform = 0;
	cl_device_id device = 0;
	cl_context_properties props[3] = { CL_CONTEXT_PLATFORM, 0, 0 };
	cl_context ctx = 0;
	cl_command_queue queues[NQUEUES];
	cl_mem bufin, bufck, bufout;
	cl_event event = NULL;
	cl_program program;
	cl_kernel kernel;
	size_t global[2], local[2];
	size_t param[5];
	char version[300];
  
	// allocate matrices
	
	in = (cl_short4 *) calloc(dsize*dsize, sizeof(*in));
	out = (cl_short4 *) calloc(dsize*dsize, sizeof(*out));
	ck = (cl_half *) calloc(9*9, sizeof(*ck));
	in[0].x = 0x3c00;
	in[1].x = 0x4000;
	in[dsize].x = 0x4100;
	ck[0] = 0x3c00;
	ck[1] = 0x4000;
	ck[9] = 0x3000;

    /* Setup OpenCL environment. */
    err = clGetPlatformIDs( 1, &platform, NULL );
    err = clGetDeviceIDs( platform, CL_DEVICE_TYPE_GPU, 1, &device, NULL );

    props[1] = (cl_context_properties)platform;
    ctx = clCreateContext( props, 1, &device, NULL, NULL, &err );
    for(i = 0; i < NQUEUES; i++)
    	queues[i] = clCreateCommandQueue( ctx, device, 0, &err );

	// Print some info about the system
	clGetDeviceInfo(device, CL_DEVICE_VERSION, sizeof(version), version, NULL);
	printf("CL_DEVICE_VERSION=%s\n", version);
	clGetDeviceInfo(device, CL_DRIVER_VERSION, sizeof(version), version, NULL);
	printf("CL_DRIVER_VERSION=%s\n", version);
	program = clCreateProgramWithSource(ctx, 1, (const char **)&source, NULL, &err);
	clGetDeviceInfo(device, CL_DEVICE_LOCAL_MEM_SIZE, sizeof(param[0]), param, NULL);
	printf("CL_DEVICE_LOCAL_MEM_SIZE=%d\n", (int)param[0]);
	clGetDeviceInfo(device, CL_DEVICE_MAX_WORK_GROUP_SIZE, sizeof(param[0]), param, NULL);
	printf("CL_DEVICE_MAX_WORK_GROUP_SIZE=%d\n", (int)param[0]);
	clGetDeviceInfo(device, CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS, sizeof(param[0]), param, NULL);
	printf("CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS=%d\n", (int)param[0]);
	j = param[0];
	clGetDeviceInfo(device, CL_DEVICE_MAX_WORK_ITEM_SIZES, sizeof(param[0])*j, param, NULL);
	printf("CL_DEVICE_MAX_WORK_ITEM_SIZES=");
	for(i = 0; i < j; i++)
		printf("%d ", (int)param[i]);
	printf("\n");
        clGetDeviceInfo(device, CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE, sizeof(param[0]), param, NULL);
        printf("CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE=%d\n", (int)param[0]);
		
		
	program = clCreateProgramWithSource(ctx, 1, (const char **)&source, NULL, &err);
	if(!program)
	{
		printf("Error creating program\n");
		return -1;
	}
	err = clBuildProgram(program, 0, 0, 0, 0, 0);
	if(err != CL_SUCCESS)
	{
		char buffer[20000];
		size_t len;
		
		clGetProgramBuildInfo(program, device, CL_PROGRAM_BUILD_LOG, sizeof(buffer), buffer, &len);
		puts(buffer);
		return -1;
	}
	kernel = clCreateKernel(program, "conv9x9", &err);
	if(!kernel || err != CL_SUCCESS)
	{
		printf("Error creating kernel\n");
		return -1;
	}

    /* Prepare OpenCL memory objects and place matrices inside them. */
	cl_image_format fmt = {CL_RGBA, CL_HALF_FLOAT};
	cl_int rc;
	bufin = clCreateImage2D(ctx, CL_MEM_READ_ONLY, &fmt, dsize, dsize, 0, 0, &rc);
	bufout = clCreateImage2D(ctx, CL_MEM_WRITE_ONLY, &fmt, dsize, dsize, 0, 0, &rc);
    bufck = clCreateBuffer( ctx, CL_MEM_READ_ONLY, 9 * 9 * sizeof(*ck),
                          NULL, &err );

	size_t origin[3] = {0,0,0};
	size_t region[3] = {dsize, dsize, 1};
    err = clEnqueueWriteImage(queues[0], bufin, CL_TRUE, origin, region, dsize * sizeof(*in), 0, in, 0, NULL, NULL );
    err = clEnqueueWriteBuffer( queues[0], bufck, CL_TRUE, 0, 9 * 9 * sizeof( *ck ), ck, 0, NULL, NULL );
	clSetKernelArg(kernel, 0, sizeof(int), &dsize);
	clSetKernelArg(kernel, 1, sizeof(cl_mem), &bufin);
	clSetKernelArg(kernel, 2, sizeof(cl_mem), &bufck);
	clSetKernelArg(kernel, 3, sizeof(cl_mem), &bufout);
	local[0] = 8;
	local[1] = 8;
	global[0] = global[1] = dsize-32;
    usleep(100000);

	struct timeval start,end;
	gettimeofday(&start, NULL);

	for (k=0; k<nthreads; k++) {
		//printf("Hello from thread %d, nthreads %d\n", omp_get_thread_num(), omp_get_num_threads());
		for(i=0;i<nbOfAverages;i++) {
		// do the 2D convolution
			err = clEnqueueNDRangeKernel(queues[0], kernel, 2, NULL, global, local, 0, NULL, NULL);
			if(err != CL_SUCCESS)
			{
				printf("clEnqueueNDRangeKernel error %d\n", err);
				return -1;
			}
		}
	}

	clFinish(queues[0]);
	gettimeofday(&end, NULL);
	double t = ((double) (end.tv_sec - start.tv_sec))
	+ ((double) (end.tv_usec - start.tv_usec)) / 1e6; //reports time in [s] - verified!

    /* Wait for calculations to be finished. */

    /* Fetch results of calculations from GPU memory. */
    err = clEnqueueReadImage(queues[0], bufout, CL_TRUE, origin, region, dsize * sizeof(*out), 0, out, 0, NULL, NULL );
	clFinish(queues[0]);
	
	printf("%x %x %x %x\n", out[0].x, out[1].x, out[dsize].x, out[dsize+1].x);

    /* Release OpenCL memory objects. */
    clReleaseMemObject( bufin );
    clReleaseMemObject( bufck );
    clReleaseMemObject( bufout );

    /* Release OpenCL working objects. */
    for(i = 0; i < NQUEUES; i++)
    	clReleaseCommandQueue( queues[i] );
    clReleaseContext( ctx );
	
	// report performance:
	tops = 4 * nthreads * opsMAC * (dsize-32)*(dsize-32)*9*9; // total ops
	printf("Total M ops = %.0lf, # of threads = %d", nbOfAverages*tops*1e-6, nthreads);
	printf("\nTime in s: %lf:", t);
	printf("\nTest performance [G OP/s] %lf:", tops*nbOfAverages/t*1e-9);
	printf("\n");
	return(0);
}
Ejemplo n.º 23
0
int main(int argc, char **argv)
{
    int	start,end;
    unsigned long	p[64], c[64], k[56];
    unsigned long	res;

    build_samples (p, c, k, 0);
    set_low_keys(k);

    cl_platform_id cpPlatform;
    clGetPlatformIDs(1, &cpPlatform, NULL);

    cl_device_id cdDevice;
    clGetDeviceIDs(cpPlatform, CL_DEVICE_TYPE_GPU, 1, &cdDevice, NULL);

    char cBuffer[1024];
    clGetDeviceInfo(cdDevice, CL_DEVICE_NAME, sizeof(cBuffer), &cBuffer, NULL);
    printf("CL_DEVICE_NAME:\t\t%s\n", cBuffer);
    clGetDeviceInfo(cdDevice, CL_DRIVER_VERSION, sizeof(cBuffer), &cBuffer, NULL);
    printf("CL_DRIVER_VERSION:\t%s\n\n", cBuffer);
    cl_uint compute_units;
    clGetDeviceInfo(cdDevice, CL_DEVICE_MAX_COMPUTE_UNITS, sizeof(compute_units), &compute_units, NULL);
    printf("CL_DEVICE_MAX_COMPUTE_UNITS:\t%u\n", compute_units);
    size_t workitem_dims;
    clGetDeviceInfo(cdDevice, CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS, sizeof(workitem_dims), &workitem_dims, NULL);
    printf("CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS:\t%u\n", workitem_dims);
    size_t workitem_size[3];
    clGetDeviceInfo(cdDevice, CL_DEVICE_MAX_WORK_ITEM_SIZES, sizeof(workitem_size), &workitem_size, NULL);
    printf("CL_DEVICE_MAX_WORK_ITEM_SIZES:\t%u / %u / %u \n", workitem_size[0], workitem_size[1], workitem_size[2]);
    size_t workgroup_size;
    clGetDeviceInfo(cdDevice, CL_DEVICE_MAX_WORK_GROUP_SIZE, sizeof(workgroup_size), &workgroup_size, NULL);
    printf("CL_DEVICE_MAX_WORK_GROUP_SIZE:\t%u\n", workgroup_size);
    cl_uint clock_frequency;
    clGetDeviceInfo(cdDevice, CL_DEVICE_MAX_CLOCK_FREQUENCY, sizeof(clock_frequency), &clock_frequency, NULL);
    printf("CL_DEVICE_MAX_CLOCK_FREQUENCY:\t%u MHz\n", clock_frequency);

    cl_context GPUContext = clCreateContext(0, 1, &cdDevice, NULL, NULL, NULL);

    cl_command_queue cqCommandQueue = clCreateCommandQueue(GPUContext, cdDevice, 0, NULL);

    cl_mem GPUVector1 = clCreateBuffer(GPUContext, CL_MEM_READ_ONLY |
                                       CL_MEM_USE_HOST_PTR, sizeof(unsigned long) * 64, p, NULL);
    cl_mem GPUVector2 = clCreateBuffer(GPUContext, CL_MEM_READ_ONLY |
                                       CL_MEM_USE_HOST_PTR, sizeof(unsigned long) * 64, c, NULL);
    cl_mem GPUVector3 = clCreateBuffer(GPUContext, CL_MEM_READ_ONLY |
                                       CL_MEM_USE_HOST_PTR, sizeof(unsigned long) * 56, k, NULL);

    cl_mem GPUOutputVector = clCreateBuffer(GPUContext, CL_MEM_WRITE_ONLY | CL_MEM_ALLOC_HOST_PTR,
                                            sizeof(unsigned long), &res, NULL);

    size_t szKernelLength;
    char* cSourceCL = oclLoadProgSource("ocl_deseval.cl", "", &szKernelLength);
    cl_program OpenCLProgram = clCreateProgramWithSource(GPUContext, 1,
                               (const char **)&cSourceCL, &szKernelLength, NULL);

    if (clBuildProgram(OpenCLProgram, 0, NULL, NULL, NULL, NULL)!=CL_SUCCESS)
    {
        char cBuffer[2048];
        if(clGetProgramBuildInfo(OpenCLProgram,cdDevice,CL_PROGRAM_BUILD_LOG,sizeof(cBuffer),cBuffer,NULL)==CL_SUCCESS);
        printf("Build error:\n%s\n",cBuffer);
        exit(1);
    }
    cl_kernel OpenCLVectorAdd = clCreateKernel(OpenCLProgram, "keysearch", NULL);

    clSetKernelArg(OpenCLVectorAdd, 0, sizeof(cl_mem), (void*)&GPUOutputVector);
    clSetKernelArg(OpenCLVectorAdd, 1, sizeof(cl_mem), (void*)&GPUVector1);
    clSetKernelArg(OpenCLVectorAdd, 2, sizeof(cl_mem), (void*)&GPUVector2);
    clSetKernelArg(OpenCLVectorAdd, 3, sizeof(cl_mem), (void*)&GPUVector3);

    size_t WorkSize[1] = {1024};
    start=clock();
    for (int i=0; i<1024; i++) {
        //clEnqueueWriteBuffer(cqCommandQueue, GPUOutputVector, CL_TRUE, 0,
        //									56 * sizeof(unsigned long), k, 0, NULL, NULL);
        clEnqueueNDRangeKernel(cqCommandQueue, OpenCLVectorAdd, 1, NULL,
                               WorkSize, NULL, 0, NULL, NULL);
        //clEnqueueReadBuffer(cqCommandQueue, GPUOutputVector, CL_TRUE, 0,
        //									sizeof(unsigned long), &res, 0, NULL, NULL);
        if(res!=0) {
            printf("Key found\n");
            //key_found(res,k);
            break;
        }
        increment_key (k);
    }
    end=clock();

    clReleaseKernel(OpenCLVectorAdd);
    clReleaseProgram(OpenCLProgram);
    clReleaseCommandQueue(cqCommandQueue);
    clReleaseContext(GPUContext);
    clReleaseMemObject(GPUVector1);
    clReleaseMemObject(GPUVector2);
    clReleaseMemObject(GPUOutputVector);

    printf ("Searched %i keys in %.3f seconds\n", 1000000, ((double)(end-start))/CLOCKS_PER_SEC);
    return 0;
}
Ejemplo n.º 24
0
int CommandGenerate::execute(const std::vector<std::string>& p_args) {
	if(p_args.size() < 10) {
		help();
		return -1;
	}

	unsigned int platformId = atol(p_args[1].c_str());
	unsigned int deviceId = atol(p_args[2].c_str());
	unsigned int staggerSize = atol(p_args[3].c_str());
	unsigned int threadsNumber = atol(p_args[4].c_str());
	unsigned int hashesNumber = atol(p_args[5].c_str());
	unsigned int nonceSize = PLOT_SIZE * staggerSize;

	std::cerr << "Threads number: " << threadsNumber << std::endl;
	std::cerr << "Hashes number: " << hashesNumber << std::endl;

	unsigned int numjobs = (p_args.size() - 5)/4;
	std::cerr << numjobs << " plot(s) to do." << std::endl;
	unsigned int staggerMbSize = staggerSize / 4;
	std::cerr << "Non-GPU memory usage: " << staggerMbSize*numjobs << "MB" << std::endl;
	
	std::vector<std::string> paths(numjobs);
	std::vector<std::ofstream *> out_files(numjobs);
	std::vector<unsigned long long> addresses(numjobs);
	std::vector<unsigned long long> startNonces(numjobs);
	std::vector<unsigned long long> endNonces(numjobs);
	std::vector<unsigned int> noncesNumbers(numjobs);
	std::vector<unsigned char*> buffersCpu(numjobs);
	std::vector<bool> saving_thread_flags(numjobs);
	std::vector<std::future<void>> save_threads(numjobs);
	unsigned long long maxNonceNumber = 0;
	unsigned long long totalNonces = 0;

	int returnCode = 0;

	try {
		for (unsigned int i = 0; i < numjobs; i++) {
			std::cerr << "----" << std::endl;
			std::cerr << "Job number " << i << std::endl;
			unsigned int argstart = 6 + i*4;
			paths[i] = std::string(p_args[argstart]);
			addresses[i] = strtoull(p_args[argstart+1].c_str(), NULL, 10);
			startNonces[i] = strtoull(p_args[argstart+2].c_str(), NULL, 10);
			noncesNumbers[i] = atol(p_args[argstart+3].c_str());
			maxNonceNumber = std::max(maxNonceNumber, (long long unsigned int)noncesNumbers[i]);
			totalNonces += noncesNumbers[i];

			std::ostringstream outFile;
			outFile << paths[i] << "/" << addresses[i] << "_" << startNonces[i] << "_" << \
				noncesNumbers[i] << "_" << staggerSize;
			std::ios_base::openmode file_mode = std::ios::out | std::ios::binary | std::ios::trunc;
			out_files[i] = new std::ofstream(outFile.str(), file_mode);
			assert(out_files[i]);

			if(noncesNumbers[i] % staggerSize != 0) {
				noncesNumbers[i] -= noncesNumbers[i] % staggerSize;
				noncesNumbers[i] += staggerSize;
			}

			endNonces[i] = startNonces[i] + noncesNumbers[i];
			unsigned int noncesGbSize = noncesNumbers[i] / 4 / 1024;
			std::cerr << "Path: " << outFile.str() << std::endl;
			std::cerr << "Nonces: " << startNonces[i] << " to " << endNonces[i] << " (" << noncesGbSize << " GB)" << std::endl;
			std::cerr << "Creating CPU buffer" << std::endl;
			buffersCpu[i] = new unsigned char[nonceSize];
			if(!buffersCpu[i]) {
				throw std::runtime_error("Unable to create the CPU buffer (probably out of host memory.)");
			}
			saving_thread_flags[i] = false;
			std::cerr << "----" << std::endl;
		}

		cl_platform_id platforms[4];
		cl_uint platformsNumber;
		cl_device_id devices[32];
		cl_uint devicesNumber;
		cl_context context = 0;
		cl_command_queue commandQueue = 0;
		cl_mem bufferGpuGen = 0;
		cl_mem bufferGpuScoops = 0;
		cl_program program = 0;
		cl_kernel kernelStep1 = 0;
		cl_kernel kernelStep2 = 0;
		cl_kernel kernelStep3 = 0;

		int error;

		std::cerr << "Retrieving OpenCL platforms" << std::endl;
		error = clGetPlatformIDs(4, platforms, &platformsNumber);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to retrieve the OpenCL platforms");
		}

		if(platformId >= platformsNumber) {
			throw std::runtime_error("No platform found with the provided id");
		}

		std::cerr << "Retrieving OpenCL GPU devices" << std::endl;
		error = clGetDeviceIDs(platforms[platformId], CL_DEVICE_TYPE_CPU | CL_DEVICE_TYPE_GPU, 32, devices, &devicesNumber);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to retrieve the OpenCL devices");
		}

		if(deviceId >= devicesNumber) {
			throw std::runtime_error("No device found with the provided id");
		}

		std::cerr << "Creating OpenCL context" << std::endl;
		context = clCreateContext(0, 1, &devices[deviceId], NULL, NULL, &error);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to create the OpenCL context");
		}

		std::cerr << "Creating OpenCL command queue" << std::endl;
		commandQueue = clCreateCommandQueue(context, devices[deviceId], 0, &error);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to create the OpenCL command queue");
		}

		std::cerr << "Creating OpenCL GPU generation buffer" << std::endl;
		bufferGpuGen = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_uchar) * GEN_SIZE * staggerSize, 0, &error);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to create the OpenCL GPU generation buffer");
		}

		std::cerr << "Creating OpenCL GPU scoops buffer" << std::endl;
		bufferGpuScoops = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(cl_uchar) * nonceSize, 0, &error);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to create the OpenCL GPU scoops buffer");
		}

		std::cerr << "Creating OpenCL program" << std::endl;
		std::string source = loadSource("kernel/nonce.cl");
		const char* sources[] = {source.c_str()};
		size_t sourcesLength[] = {source.length()};
		program = clCreateProgramWithSource(context, 1, sources, sourcesLength, &error);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to create the OpenCL program");
		}

		std::cerr << "Building OpenCL program" << std::endl;
		error = clBuildProgram(program, 1, &devices[deviceId], "-I kernel", 0, 0);
		if(error != CL_SUCCESS) {
			size_t logSize;
			clGetProgramBuildInfo(program, devices[deviceId], CL_PROGRAM_BUILD_LOG, 0, 0, &logSize);

			char* log = new char[logSize];
			clGetProgramBuildInfo(program, devices[deviceId], CL_PROGRAM_BUILD_LOG, logSize, (void*)log, 0);
			std::cerr << log << std::endl;
			delete[] log;

			throw OpenclError(error, "Unable to build the OpenCL program");
		}

		std::cerr << "Creating OpenCL step1 kernel" << std::endl;
		kernelStep1 = clCreateKernel(program, "nonce_step1", &error);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to create the OpenCL kernel");
		}

		std::cerr << "Setting OpenCL step1 kernel static arguments" << std::endl;
		error = clSetKernelArg(kernelStep1, 2, sizeof(cl_mem), (void*)&bufferGpuGen);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to set the OpenCL kernel arguments");
		}

		std::cerr << "Creating OpenCL step2 kernel" << std::endl;
		kernelStep2 = clCreateKernel(program, "nonce_step2", &error);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to create the OpenCL kernel");
		}

		std::cerr << "Setting OpenCL step2 kernel static arguments" << std::endl;
		error = clSetKernelArg(kernelStep2, 1, sizeof(cl_mem), (void*)&bufferGpuGen);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to set the OpenCL kernel arguments");
		}

		std::cerr << "Creating OpenCL step3 kernel" << std::endl;
		kernelStep3 = clCreateKernel(program, "nonce_step3", &error);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to create the OpenCL kernel");
		}

		std::cerr << "Setting OpenCL step3 kernel static arguments" << std::endl;
		error = clSetKernelArg(kernelStep3, 0, sizeof(cl_uint), (void*)&staggerSize);
		error = clSetKernelArg(kernelStep3, 1, sizeof(cl_mem), (void*)&bufferGpuGen);
		error = clSetKernelArg(kernelStep3, 2, sizeof(cl_mem), (void*)&bufferGpuScoops);
		if(error != CL_SUCCESS) {
			throw OpenclError(error, "Unable to set the OpenCL kernel arguments");
		}

		size_t globalWorkSize = staggerSize;
		size_t localWorkSize = (staggerSize < threadsNumber) ? staggerSize : threadsNumber;
		time_t startTime = time(0);
		unsigned int totalNoncesCompleted = 0;
		for (unsigned long long nonce_ordinal = 0; nonce_ordinal < maxNonceNumber; nonce_ordinal += staggerSize) {
			for (unsigned int jobnum = 0; jobnum < paths.size(); jobnum += 1) {
				unsigned long long nonce = startNonces[jobnum] + nonce_ordinal;
				if (nonce > endNonces[jobnum]) {
				  break;
				}

				std::cout << "Running with start nonce " << nonce << std::endl;
				// Is a cl_ulong always an unsigned long long?
				unsigned int error = 0;
				error = clSetKernelArg(kernelStep1, 0, sizeof(cl_ulong), (void*)&addresses[jobnum]);
				if(error != CL_SUCCESS) {
					throw OpenclError(error, "Unable to set the OpenCL step1 kernel arguments");
				}
				error = clSetKernelArg(kernelStep1, 1, sizeof(cl_ulong), (void*)&nonce);
				if(error != CL_SUCCESS) {
					throw OpenclError(error, "Unable to set the OpenCL step1 kernel arguments");
				}

				error = clEnqueueNDRangeKernel(commandQueue, kernelStep1, 1, 0, &globalWorkSize, &localWorkSize, 0, 0, 0);
				if(error != CL_SUCCESS) {
					throw OpenclError(error, "Error in step1 kernel launch");
				}

				unsigned int hashesSize = hashesNumber * HASH_SIZE;
				for(int hashesOffset = PLOT_SIZE ; hashesOffset > 0 ; hashesOffset -= hashesSize) {
					error = clSetKernelArg(kernelStep2, 0, sizeof(cl_ulong), (void*)&nonce);
					error = clSetKernelArg(kernelStep2, 2, sizeof(cl_uint), (void*)&hashesOffset);
					error = clSetKernelArg(kernelStep2, 3, sizeof(cl_uint), (void*)&hashesNumber);
					if(error != CL_SUCCESS) {
						throw OpenclError(error, "Unable to set the OpenCL step2 kernel arguments");
					}

					error = clEnqueueNDRangeKernel(commandQueue, kernelStep2, 1, 0, &globalWorkSize, &localWorkSize, 0, 0, 0);
					if(error != CL_SUCCESS) {
						throw OpenclError(error, "Error in step2 kernel launch");
					}

					error = clFinish(commandQueue);
					if(error != CL_SUCCESS) {
						throw OpenclError(error, "Error in step2 kernel finish");
					}
				}

				totalNoncesCompleted += staggerSize;
				double percent = 100.0 * (double)totalNoncesCompleted / totalNonces;
				time_t currentTime = time(0);
				double speed = (double)totalNoncesCompleted / difftime(currentTime, startTime) * 60.0;
				double estimatedTime = (double)(totalNonces - totalNoncesCompleted) / speed;
				std::cerr << "\r" << percent << "% (" << totalNoncesCompleted << "/" << totalNonces << " nonces)";
				std::cerr << ", " << speed << " nonces/minutes";
				std::cerr << ", ETA: " << ((int)estimatedTime / 60) << "h" << ((int)estimatedTime % 60) << "m" << ((int)(estimatedTime * 60.0) % 60) << "s";
				std::cerr << "...                    ";

				error = clEnqueueNDRangeKernel(commandQueue, kernelStep3, 1, 0, &globalWorkSize, &localWorkSize, 0, 0, 0);
				if(error != CL_SUCCESS) {
					throw OpenclError(error, "Error in step3 kernel launch");
				}

				if (saving_thread_flags[jobnum]) {
					save_threads[jobnum].wait(); // Wait for last job to finish
					saving_thread_flags[jobnum] = false;
				}

				error = clEnqueueReadBuffer(commandQueue, bufferGpuScoops, CL_TRUE, 0, sizeof(cl_uchar) * nonceSize, buffersCpu[jobnum], 0, 0, 0);
				if(error != CL_SUCCESS) {
					throw OpenclError(error, "Error in synchronous read");
				}
				saving_thread_flags[jobnum] = true;
				save_threads[jobnum] = std::async(std::launch::async, save_nonces, nonceSize, out_files[jobnum], buffersCpu[jobnum]);
			}
		}

		//Clean up
		for (unsigned int i = 0; i < paths.size(); i += 1) {
		  if (saving_thread_flags[i]) {
		    std::cerr << "waiting for final save to " << paths[i] << " to finish" << std::endl;
		    save_threads[i].wait();
		    saving_thread_flags[i] = false;
		    std::cerr << "done waiting for final save" << std::endl;
		    if (buffersCpu[i]) {
		      delete[] buffersCpu[i];
		    }
		  }
		}
		
		if(kernelStep3) { clReleaseKernel(kernelStep3); }
		if(kernelStep2) { clReleaseKernel(kernelStep2); }
		if(kernelStep1) { clReleaseKernel(kernelStep1); }
		if(program) { clReleaseProgram(program); }
		if(bufferGpuGen) { clReleaseMemObject(bufferGpuGen); }
		if(bufferGpuScoops) { clReleaseMemObject(bufferGpuScoops); }
		if(commandQueue) { clReleaseCommandQueue(commandQueue); }
		if(context) { clReleaseContext(context); }


		time_t currentTime = time(0);
		double elapsedTime = difftime(currentTime, startTime) / 60.0;
		double speed = (double)totalNonces / elapsedTime;
		std::cerr << "\r100% (" << totalNonces << "/" << totalNonces << " nonces)";
		std::cerr << ", " << speed << " nonces/minutes";
		std::cerr << ", " << ((int)elapsedTime / 60) << "h" << ((int)elapsedTime % 60) << "m" << ((int)(elapsedTime * 60.0) % 60) << "s";
		std::cerr << "                    " << std::endl;
	} catch(const OpenclError& ex) {
		std::cerr << "[ERROR] [" << ex.getCode() << "] " << ex.what() << std::endl;
		returnCode = -1;
	} catch(const std::exception& ex) {
		std::cerr << "[ERROR] " << ex.what() << std::endl;
		returnCode = -1;
	}
	return returnCode;
}
Ejemplo n.º 25
0
unsigned int kernel_launch ( cl_kernel kernel, cl_context context, cl_command_queue cmd_queue, unsigned int n, int * a, int * b, int * c )
{
        int error = 1;

	int * aVec = calloc( n , sizeof ( int ) );
	int * bVec = calloc( n , sizeof ( int ) );
        int * cVec = calloc( n , sizeof ( int ) ); 

	cl_int err;	

	if( aVec == NULL   || bVec == NULL      || cVec == NULL )
	{	
      		return ( 0 );
	}

        /* Here it is not needed */
	fill_aVec ( n, a, aVec );
	fill_bVec ( n, b, bVec );

	cl_mem aVec_device = malloc_device (context, n * sizeof( int ), &error);
	if(error)
	{
      		return ( 0 );	
	}
	
	init_device_mem_int (context, cmd_queue, aVec_device, aVec, n, &error);
	if(error)
	{
      		return ( 0 );	
	}
	
	cl_mem bVec_device = malloc_device (context, n * sizeof( int ), &error);
	if(error)
	{
      		return ( 0 );	
	}

	init_device_mem_int (context, cmd_queue, bVec_device, bVec, n, &error);
	if(error)
	{
      		return ( 0 );	
	}

	cl_mem cVec_device = malloc_device (context, n * sizeof( int ), &error);
	if(error)
	{
      		return ( 0 );	
	}

	init_device_mem_int (context, cmd_queue, cVec_device, cVec, n, &error);
	if(error)
	{
      		return ( 0 );	
	}

	err = clFinish( cmd_queue );
	if( err != CL_SUCCESS )
	{
      		return ( 0 );	
	}

	set_kernel_arguments ( kernel, cmd_queue, aVec_device, bVec_device, cVec_device );

	err = clFinish( cmd_queue );
	if( err != CL_SUCCESS )
	{
      		return ( 0 );	
	}	

	size_t WorkSizeGlobal[] = {n};
	size_t WorkSizeLocal[]  = {1};

	err = clEnqueueNDRangeKernel( cmd_queue, kernel, 1, NULL, WorkSizeGlobal, WorkSizeLocal, 0, NULL, NULL);
	if( err != CL_SUCCESS )
	{
      		return ( 0 );	
	}

	err=clFinish( cmd_queue );
	if( err != CL_SUCCESS )
	{
      		return ( 0 );	
	}	

	read_device_mem_int (cmd_queue, n, c, cVec_device, &error);
	if( error )
	{
      		return ( 0 );	
	}

	/*Here c should contain the result */
	free (aVec);
	free (bVec);
	free (cVec);

	clReleaseMemObject(aVec_device);
	clReleaseMemObject(bVec_device);
	clReleaseMemObject(cVec_device);

	return ( 1 );
}
Ejemplo n.º 26
0
int main(int argc, char **argv)
{
  printf("enter demo main\n");
  fflush(stdout);
  putenv("POCL_VERBOSE=1");
  putenv("POCL_DEVICES=basic");
  putenv("POCL_LEAVE_TEMP_DIRS=1");
  putenv("POCL_LEAVE_KERNEL_COMPILER_TEMP_FILES=1");
  putenv("POCL_TEMP_DIR=pocl");
  putenv("POCL_CACHE_DIR=pocl");
  putenv("POCL_WORK_GROUP_METHOD=spmd");
  if(argc >= 2){
    printf("argv[1]:%s:\n",argv[1]);
    if(!strcmp(argv[1], "h"))
      putenv("POCL_WORK_GROUP_METHOD=spmd");
    if(!strcmp(argv[1], "c"))
      putenv("POCL_CROSS_COMPILE=1");
  }
  if(argc >= 3){
    printf("argv[2]:%s:\n",argv[2]);
    if(!strcmp(argv[2], "h"))
      putenv("POCL_WORK_GROUP_METHOD=spmd");
    if(!strcmp(argv[2], "c"))
      putenv("POCL_CROSS_COMPILE=1");
  }

  //putenv("LD_LIBRARY_PATH=/scratch/colins/build/linux/fs/lib");
  //putenv("LTDL_LIBRARY_PATH=/scratch/colins/build/linux/fs/lib");
  //lt_dlsetsearchpath("/scratch/colins/build/linux/fs/lib");
  //printf("SEARCH_PATH:%s\n",lt_dlgetsearchpath());
	cl_platform_id platforms[100];
	cl_uint platforms_n = 0;
	CL_CHECK(clGetPlatformIDs(100, platforms, &platforms_n));

	printf("=== %d OpenCL platform(s) found: ===\n", platforms_n);
	for (int i=0; i<platforms_n; i++)
	{
		char buffer[10240];
		printf("  -- %d --\n", i);
		CL_CHECK(clGetPlatformInfo(platforms[i], CL_PLATFORM_PROFILE, 10240, buffer, NULL));
		printf("  PROFILE = %s\n", buffer);
		CL_CHECK(clGetPlatformInfo(platforms[i], CL_PLATFORM_VERSION, 10240, buffer, NULL));
		printf("  VERSION = %s\n", buffer);
		CL_CHECK(clGetPlatformInfo(platforms[i], CL_PLATFORM_NAME, 10240, buffer, NULL));
		printf("  NAME = %s\n", buffer);
		CL_CHECK(clGetPlatformInfo(platforms[i], CL_PLATFORM_VENDOR, 10240, buffer, NULL));
		printf("  VENDOR = %s\n", buffer);
		CL_CHECK(clGetPlatformInfo(platforms[i], CL_PLATFORM_EXTENSIONS, 10240, buffer, NULL));
		printf("  EXTENSIONS = %s\n", buffer);
	}

	if (platforms_n == 0)
		return 1;

	cl_device_id devices[100];
	cl_uint devices_n = 0;
	// CL_CHECK(clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, 100, devices, &devices_n));
	CL_CHECK(clGetDeviceIDs(platforms[0], CL_DEVICE_TYPE_GPU, 100, devices, &devices_n));

	printf("=== %d OpenCL device(s) found on platform:\n", devices_n);
	for (int i=0; i<devices_n; i++)
	{
		char buffer[10240];
		cl_uint buf_uint;
		cl_ulong buf_ulong;
		printf("  -- %d --\n", i);
		CL_CHECK(clGetDeviceInfo(devices[i], CL_DEVICE_NAME, sizeof(buffer), buffer, NULL));
		printf("  DEVICE_NAME = %s\n", buffer);
		CL_CHECK(clGetDeviceInfo(devices[i], CL_DEVICE_VENDOR, sizeof(buffer), buffer, NULL));
		printf("  DEVICE_VENDOR = %s\n", buffer);
		CL_CHECK(clGetDeviceInfo(devices[i], CL_DEVICE_VERSION, sizeof(buffer), buffer, NULL));
		printf("  DEVICE_VERSION = %s\n", buffer);
		CL_CHECK(clGetDeviceInfo(devices[i], CL_DRIVER_VERSION, sizeof(buffer), buffer, NULL));
		printf("  DRIVER_VERSION = %s\n", buffer);
		CL_CHECK(clGetDeviceInfo(devices[i], CL_DEVICE_MAX_COMPUTE_UNITS, sizeof(buf_uint), &buf_uint, NULL));
		printf("  DEVICE_MAX_COMPUTE_UNITS = %u\n", (unsigned int)buf_uint);
		CL_CHECK(clGetDeviceInfo(devices[i], CL_DEVICE_MAX_CLOCK_FREQUENCY, sizeof(buf_uint), &buf_uint, NULL));
		printf("  DEVICE_MAX_CLOCK_FREQUENCY = %u\n", (unsigned int)buf_uint);
		CL_CHECK(clGetDeviceInfo(devices[i], CL_DEVICE_GLOBAL_MEM_SIZE, sizeof(buf_ulong), &buf_ulong, NULL));
		printf("  DEVICE_GLOBAL_MEM_SIZE = %llu\n", (unsigned long long)buf_ulong);
	}

	if (devices_n == 0)
		return 1;

	cl_context context;
	context = CL_CHECK_ERR(clCreateContext(NULL, 1, devices+1, &pfn_notify, NULL, &_err));

	cl_command_queue queue;
  queue = CL_CHECK_ERR(clCreateCommandQueue(context, devices[1], CL_QUEUE_PROFILING_ENABLE, &_err));

	cl_kernel kernel = 0;
  cl_mem memObjects[2] = {0,0};


  // Create OpenCL program - first attempt to load cached binary.
  //  If that is not available, then create the program from source
  //  and store the binary for future use.
  std::cout << "Attempting to create program from binary..." << std::endl;
  cl_program program = CreateProgramFromBinary(context, devices[1], "kernel.cl.bin");
  if (program == NULL)
  {
      std::cout << "Binary not loaded, create from source..." << std::endl;
      program = CreateProgram(context, devices[1], "kernel.cl");
      if (program == NULL)
      {
          Cleanup(context, queue, program, kernel, memObjects);
          return 1;
      }

      std::cout << "Save program binary for future run..." << std::endl;
      if (SaveProgramBinary(program, devices[1], "kernel.cl.bin") == false)
      {
          std::cerr << "Failed to write program binary" << std::endl;
          Cleanup(context, queue, program, kernel, memObjects);
          return 1;
      }
  }
  else
  {
      std::cout << "Read program from binary." << std::endl;
  }

  printf("attempting to create input buffer\n");
  fflush(stdout);
	cl_mem input_buffer;
	input_buffer = CL_CHECK_ERR(clCreateBuffer(context, CL_MEM_READ_ONLY, sizeof(double)*NUM_DATA, NULL, &_err));

  printf("attempting to create output buffer\n");
  fflush(stdout);
	cl_mem output_buffer;
	output_buffer = CL_CHECK_ERR(clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(double)*NUM_DATA, NULL, &_err));

  memObjects[0] = input_buffer;
  memObjects[1] = output_buffer;

  double factor = ((double)rand()/(double)(RAND_MAX)) * 100.0;;

  printf("attempting to create kernel\n");
  fflush(stdout);
	kernel = CL_CHECK_ERR(clCreateKernel(program, "daxpy", &_err));
  printf("setting up kernel args cl_mem:%lx \n",input_buffer);
  fflush(stdout);
	CL_CHECK(clSetKernelArg(kernel, 0, sizeof(input_buffer), &input_buffer));
	CL_CHECK(clSetKernelArg(kernel, 1, sizeof(output_buffer), &output_buffer));
	CL_CHECK(clSetKernelArg(kernel, 2, sizeof(factor), &factor));

  printf("attempting to enqueue write buffer\n");
  fflush(stdout);
	for (int i=0; i<NUM_DATA; i++) {
    double in = ((double)rand()/(double)(RAND_MAX)) * 100.0;;
		CL_CHECK(clEnqueueWriteBuffer(queue, input_buffer, CL_TRUE, i*sizeof(double), 8, &in, 0, NULL, NULL));
	}

	cl_event kernel_completion;
	size_t global_work_size[1] = { NUM_DATA };
  printf("attempting to enqueue kernel\n");
  fflush(stdout);
	CL_CHECK(clEnqueueNDRangeKernel(queue, kernel, 1, NULL, global_work_size, NULL, 0, NULL, &kernel_completion));
  printf("Enqueue'd kerenel\n");
  fflush(stdout);
    cl_ulong time_start, time_end;
  CL_CHECK(clWaitForEvents(1, &kernel_completion));
  CL_CHECK(clGetEventProfilingInfo(kernel_completion, CL_PROFILING_COMMAND_START, sizeof(time_start), &time_start, NULL));
  CL_CHECK(clGetEventProfilingInfo(kernel_completion, CL_PROFILING_COMMAND_END, sizeof(time_end), &time_end, NULL));
  double elapsed = time_end - time_start;
  printf("time(ns):%lg\n",elapsed);
	CL_CHECK(clReleaseEvent(kernel_completion));

	printf("Result:");
	for (int i=0; i<NUM_DATA; i++) {
		double data;
		CL_CHECK(clEnqueueReadBuffer(queue, output_buffer, CL_TRUE, i*sizeof(double), 8, &data, 0, NULL, NULL));
		//printf(" %lg", data);
	}
	printf("\n");

	CL_CHECK(clReleaseMemObject(memObjects[0]));
	CL_CHECK(clReleaseMemObject(memObjects[1]));

	CL_CHECK(clReleaseKernel(kernel));
	CL_CHECK(clReleaseProgram(program));
	CL_CHECK(clReleaseContext(context));

	return 0;
}
Ejemplo n.º 27
0
int main(int argc, char* argv[]) {
  struct pb_Parameters *parameters;

  parameters = pb_ReadParameters(&argc, argv);
  if (!parameters)
    return -1;

  if(!parameters->inpFiles[0]){
    fputs("Input file expected\n", stderr);
    return -1;
  }

  
  struct pb_TimerSet timers;
  
  char oclOverhead[] = "OCL Overhead";
  char intermediates[] = "IntermediatesKernel";
  char finals[] = "FinalKernel";

  pb_InitializeTimerSet(&timers);
  
  pb_AddSubTimer(&timers, oclOverhead, pb_TimerID_KERNEL);
  pb_AddSubTimer(&timers, intermediates, pb_TimerID_KERNEL);
  pb_AddSubTimer(&timers, finals, pb_TimerID_KERNEL);
    
  pb_SwitchToTimer(&timers, pb_TimerID_IO);
  
  int numIterations;
  if (argc >= 2){
    numIterations = atoi(argv[1]);
  } else {
    fputs("Expected at least one command line argument\n", stderr);
    return -1;
  }

  unsigned int img_width, img_height;
  unsigned int histo_width, histo_height;

  FILE* f = fopen(parameters->inpFiles[0],"rb");
  int result = 0;

  result += fread(&img_width,    sizeof(unsigned int), 1, f);
  result += fread(&img_height,   sizeof(unsigned int), 1, f);
  result += fread(&histo_width,  sizeof(unsigned int), 1, f);
  result += fread(&histo_height, sizeof(unsigned int), 1, f);

  if (result != 4){
    fputs("Error reading input and output dimensions from file\n", stderr);
    return -1;
  }

  unsigned int* img = (unsigned int*) malloc (img_width*img_height*sizeof(unsigned int));
  unsigned char* histo = (unsigned char*) calloc (histo_width*histo_height, sizeof(unsigned char));

  result = fread(img, sizeof(unsigned int), img_width*img_height, f);

  fclose(f);

  if (result != img_width*img_height){
    fputs("Error reading input array from file\n", stderr);
    return -1;
  }

  cl_int ciErrNum;
  pb_Context* pb_context;
  pb_context = pb_InitOpenCLContext(parameters);
  if (pb_context == NULL) {
    fprintf (stderr, "Error: No OpenCL platform/device can be found."); 
    return -1;
  }

  cl_device_id clDevice = (cl_device_id) pb_context->clDeviceId;
  cl_platform_id clPlatform = (cl_platform_id) pb_context->clPlatformId;
  cl_context clContext = (cl_context) pb_context->clContext;
  cl_command_queue clCommandQueue;
  
  cl_program clProgram[2];
  
  cl_kernel histo_intermediates_kernel;
  cl_kernel histo_final_kernel;
  
  cl_mem input;
  cl_mem ranges;
  cl_mem sm_mappings;
  cl_mem global_subhisto;
  cl_mem global_overflow;
  cl_mem final_histo;
  
  clCommandQueue = clCreateCommandQueue(clContext, clDevice, CL_QUEUE_PROFILING_ENABLE, &ciErrNum);
  OCL_ERRCK_VAR(ciErrNum);
  
  pb_SetOpenCL(&clContext, &clCommandQueue);
  pb_SwitchToSubTimer(&timers, oclOverhead, pb_TimerID_KERNEL);

  cl_uint workItemDimensions;
  OCL_ERRCK_RETVAL( clGetDeviceInfo(clDevice, CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS, sizeof(cl_uint), &workItemDimensions, NULL) );
  
  size_t workItemSizes[workItemDimensions];
  OCL_ERRCK_RETVAL( clGetDeviceInfo(clDevice, CL_DEVICE_MAX_WORK_ITEM_SIZES, workItemDimensions*sizeof(size_t), workItemSizes, NULL) );
  
  size_t program_length[2];
  const char *source_path[2] = { 
    "src/opencl_mxpa/histo_intermediates.cl", 
   "src/opencl_mxpa/histo_final.cl"};
  char *source[4];

  for (int i = 0; i < 2; ++i) {
    // Dynamically allocate buffer for source
    source[i] = oclLoadProgSource(source_path[i], "", &program_length[i]);
    if(!source[i]) {
      fprintf(stderr, "Could not load program source\n"); exit(1);
    }
  	
  	clProgram[i] = clCreateProgramWithSource(clContext, 1, (const char **)&source[i], &program_length[i], &ciErrNum);
  	OCL_ERRCK_VAR(ciErrNum);
  	  	
  	free(source[i]);
  }
  	
  	  	  	  	  	  	  	
  for (int i = 0; i < 2; ++i) {
    //fprintf(stderr, "Building Program #%d...\n", i);
    OCL_ERRCK_RETVAL ( clBuildProgram(clProgram[i], 1, &clDevice, NULL, NULL, NULL) );
       
    /*
       char *build_log;
       size_t ret_val_size;
       ciErrNum = clGetProgramBuildInfo(clProgram[i], clDevice, CL_PROGRAM_BUILD_LOG, 0, NULL, &ret_val_size);	OCL_ERRCK_VAR(ciErrNum);
       build_log = (char *)malloc(ret_val_size+1);
       ciErrNum = clGetProgramBuildInfo(clProgram[i], clDevice, CL_PROGRAM_BUILD_LOG, ret_val_size, build_log, NULL);
       	OCL_ERRCK_VAR(ciErrNum);
       	

       // to be carefully, terminate with \0
       // there's no information in the reference whether the string is 0 terminated or not
       build_log[ret_val_size] = '\0';

       fprintf(stderr, "%s\n", build_log );
     */
  }
  	
  histo_intermediates_kernel = clCreateKernel(clProgram[0], "histo_intermediates_kernel", &ciErrNum);
  OCL_ERRCK_VAR(ciErrNum);
  histo_final_kernel = clCreateKernel(clProgram[1], "histo_final_kernel", &ciErrNum);
  OCL_ERRCK_VAR(ciErrNum);
  
  pb_SwitchToTimer(&timers, pb_TimerID_COPY);  

  input =           clCreateBuffer(clContext, CL_MEM_READ_WRITE, 
      img_width*img_height*sizeof(unsigned int), NULL, &ciErrNum); OCL_ERRCK_VAR(ciErrNum);
  ranges =          clCreateBuffer(clContext, CL_MEM_READ_WRITE, 2*sizeof(unsigned int), NULL, &ciErrNum); OCL_ERRCK_VAR(ciErrNum);  
  sm_mappings =     clCreateBuffer(clContext, CL_MEM_READ_WRITE, img_width*img_height*4*sizeof(unsigned char), NULL, &ciErrNum); OCL_ERRCK_VAR(ciErrNum);
  global_subhisto = clCreateBuffer(clContext, CL_MEM_READ_WRITE, histo_width*histo_height*sizeof(unsigned int), NULL, &ciErrNum); OCL_ERRCK_VAR(ciErrNum);
  global_overflow = clCreateBuffer(clContext, CL_MEM_READ_WRITE, histo_width*histo_height*sizeof(unsigned int), NULL, &ciErrNum); OCL_ERRCK_VAR(ciErrNum);
  final_histo =     clCreateBuffer(clContext, CL_MEM_READ_WRITE, histo_width*histo_height*sizeof(unsigned char), NULL, &ciErrNum); OCL_ERRCK_VAR(ciErrNum);

  // Must dynamically allocate. Too large for stack
  unsigned int *zeroData;
  zeroData = (unsigned int *) calloc(img_width*histo_height, sizeof(unsigned int));
  if (zeroData == NULL) {
    fprintf(stderr, "Failed to allocate %ld bytes of memory on host!\n", sizeof(unsigned int) * img_width * histo_height);
    exit(1);
  }
   
  for (int y=0; y < img_height; y++){
    OCL_ERRCK_RETVAL( clEnqueueWriteBuffer(clCommandQueue, input, CL_TRUE, 
                          y*img_width*sizeof(unsigned int), // Offset in bytes
                          img_width*sizeof(unsigned int), // Size of data to write
                          &img[y*img_width], // Host Source
                          0, NULL, NULL) );
  }
 
  pb_SwitchToSubTimer(&timers, oclOverhead, pb_TimerID_KERNEL);

  unsigned int img_dim = img_height*img_width;
  OCL_ERRCK_RETVAL( clSetKernelArg(histo_intermediates_kernel, 0, sizeof(cl_mem), (void *)&input) );
  OCL_ERRCK_RETVAL( clSetKernelArg(histo_intermediates_kernel, 1, sizeof(unsigned int), &img_width) );
  OCL_ERRCK_RETVAL( clSetKernelArg(histo_intermediates_kernel, 2, sizeof(cl_mem), (void *)&global_subhisto) );
  
  OCL_ERRCK_RETVAL( clSetKernelArg(histo_final_kernel, 0, sizeof(unsigned int), &histo_height) );
  OCL_ERRCK_RETVAL( clSetKernelArg(histo_final_kernel, 1, sizeof(unsigned int), &histo_width) );
  OCL_ERRCK_RETVAL( clSetKernelArg(histo_final_kernel, 2, sizeof(cl_mem), (void *)&global_subhisto) );
  OCL_ERRCK_RETVAL( clSetKernelArg(histo_final_kernel, 3, sizeof(cl_mem), (void *)&final_histo) );

  size_t inter_localWS[1] = { workItemSizes[0] };
  size_t inter_globalWS[1] = { img_height * inter_localWS[0] };
  
  size_t final_localWS[1] = { workItemSizes[0] };
  size_t final_globalWS[1] = {(((int)(histo_height*histo_width+(final_localWS[0]-1))) /
                                          (int)final_localWS[0])*(int)final_localWS[0] };
  
  pb_SwitchToTimer(&timers, pb_TimerID_KERNEL);

  for (int iter = 0; iter < numIterations; iter++) {
    unsigned int ranges_h[2] = {UINT32_MAX, 0};
    
    // how about something like
    // __global__ unsigned int ranges[2];
    // ...kernel
    // __shared__ unsigned int s_ranges[2];
    // if (threadIdx.x == 0) {s_ranges[0] = ranges[0]; s_ranges[1] = ranges[1];}
    // __syncthreads();
    
    // Although then removing the blocking cudaMemcpy's might cause something about
    // concurrent kernel execution.
    // If kernel launches are synchronous, then how can 2 kernels run concurrently? different host threads?


  OCL_ERRCK_RETVAL( clEnqueueWriteBuffer(clCommandQueue, ranges, CL_TRUE, 
                          0, // Offset in bytes
                          2*sizeof(unsigned int), // Size of data to write
                          ranges_h, // Host Source
                          0, NULL, NULL) );
                          
  OCL_ERRCK_RETVAL( clEnqueueWriteBuffer(clCommandQueue, global_subhisto, CL_TRUE, 
                          0, // Offset in bytes
                          histo_width*histo_height*sizeof(unsigned int), // Size of data to write
                          zeroData, // Host Source
                          0, NULL, NULL) );
                          
  pb_SwitchToSubTimer(&timers, intermediates, pb_TimerID_KERNEL);

  OCL_ERRCK_RETVAL ( clEnqueueNDRangeKernel(clCommandQueue, histo_intermediates_kernel /*histo_intermediates_kernel*/, 1, 0,
                            inter_globalWS, inter_localWS, 0, 0, 0) );              
  pb_SwitchToSubTimer(&timers, finals, pb_TimerID_KERNEL);                            
  OCL_ERRCK_RETVAL ( clEnqueueNDRangeKernel(clCommandQueue, histo_final_kernel, 1, 0,
                            final_globalWS, final_localWS, 0, 0, 0) );                           
  }

  pb_SwitchToTimer(&timers, pb_TimerID_IO);

  OCL_ERRCK_RETVAL( clEnqueueReadBuffer(clCommandQueue, final_histo, CL_TRUE, 
                          0, // Offset in bytes
                          histo_height*histo_width*sizeof(unsigned char), // Size of data to read
                          histo, // Host Source
                          0, NULL, NULL) );                         

  OCL_ERRCK_RETVAL ( clReleaseKernel(histo_intermediates_kernel) );
  OCL_ERRCK_RETVAL ( clReleaseKernel(histo_final_kernel) );
  OCL_ERRCK_RETVAL ( clReleaseProgram(clProgram[0]) );
  OCL_ERRCK_RETVAL ( clReleaseProgram(clProgram[1]) );
  
  OCL_ERRCK_RETVAL ( clReleaseMemObject(input) );
  OCL_ERRCK_RETVAL ( clReleaseMemObject(ranges) );
  OCL_ERRCK_RETVAL ( clReleaseMemObject(sm_mappings) );
  OCL_ERRCK_RETVAL ( clReleaseMemObject(global_subhisto) );
  OCL_ERRCK_RETVAL ( clReleaseMemObject(global_overflow) );
  OCL_ERRCK_RETVAL ( clReleaseMemObject(final_histo) );

  if (parameters->outFile) {
    dump_histo_img(histo, histo_height, histo_width, parameters->outFile);
  }

  pb_SwitchToTimer(&timers, pb_TimerID_COMPUTE);

  free(zeroData);
  free(img);
  free(histo);

  pb_SwitchToTimer(&timers, pb_TimerID_NONE);

  printf("\n");
  pb_PrintTimerSet(&timers);
  pb_FreeParameters(parameters);
  
  pb_DestroyTimerSet(&timers);

  OCL_ERRCK_RETVAL ( clReleaseCommandQueue(clCommandQueue) );
  OCL_ERRCK_RETVAL ( clReleaseContext(clContext) );

  return 0;
}
Ejemplo n.º 28
0
////////////////////////////////////////////////////////////////////////////////
// Main program
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv)
{
    cl_platform_id cpPlatform;       //OpenCL platform
    cl_device_id cdDevice;           //OpenCL device
    cl_context       cxGPUContext;   //OpenCL context
    cl_command_queue cqCommandQueue; //OpenCL command que
    cl_mem      d_Input, d_Output;   //OpenCL memory buffer objects

    cl_int ciErrNum;

    float *h_Input, *h_OutputCPU, *h_OutputGPU;

    const uint
        imageW = 2048,
        imageH = 2048,
        stride = 2048;

    const int dir = DCT_FORWARD;

    shrQAStart(argc, argv);

    // set logfile name and start logs
    shrSetLogFileName ("oclDCT8x8.txt");
    shrLog("%s Starting...\n\n", argv[0]); 

    shrLog("Allocating and initializing host memory...\n");
        h_Input     = (float *)malloc(imageH * stride * sizeof(float));
        h_OutputCPU = (float *)malloc(imageH * stride * sizeof(float));
        h_OutputGPU = (float *)malloc(imageH * stride * sizeof(float));
        srand(2009);
        for(uint i = 0; i < imageH; i++)
            for(uint j = 0; j < imageW; j++)
                h_Input[i * stride + j] = (float)rand() / (float)RAND_MAX;

    shrLog("Initializing OpenCL...\n");
        //Get the NVIDIA platform
        ciErrNum = oclGetPlatformID(&cpPlatform);
        oclCheckError(ciErrNum, CL_SUCCESS);

        //Get a GPU device
        ciErrNum = clGetDeviceIDs(cpPlatform, CL_DEVICE_TYPE_GPU, 1, &cdDevice, NULL);
        oclCheckError(ciErrNum, CL_SUCCESS);

        //Create the context
        cxGPUContext = clCreateContext(0, 1, &cdDevice, NULL, NULL, &ciErrNum);
        oclCheckError(ciErrNum, CL_SUCCESS);

        //Create a command-queue
        cqCommandQueue = clCreateCommandQueue(cxGPUContext, cdDevice, CL_QUEUE_PROFILING_ENABLE, &ciErrNum);
        oclCheckError(ciErrNum, CL_SUCCESS);

    shrLog("Initializing OpenCL DCT 8x8...\n");
        initDCT8x8(cxGPUContext, cqCommandQueue, (const char **)argv);

    shrLog("Creating OpenCL memory objects...\n");
        d_Input = clCreateBuffer(cxGPUContext, CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, imageH * stride *  sizeof(cl_float), h_Input, &ciErrNum);
        oclCheckError(ciErrNum, CL_SUCCESS);
        d_Output = clCreateBuffer(cxGPUContext, CL_MEM_WRITE_ONLY, imageH * stride * sizeof(cl_float), NULL, &ciErrNum);
        oclCheckError(ciErrNum, CL_SUCCESS);

    shrLog("Performing DCT8x8 of %u x %u image...\n\n", imageH, imageW);
        //Just a single iteration or a warmup iteration
        DCT8x8(
            cqCommandQueue,
            d_Output,
            d_Input,
            stride,
            imageH,
            imageW,
            dir
        );

#define GPU_PROFILING 1
#ifdef GPU_PROFILING
    const int numIterations = 16;
    cl_event startMark, endMark;
    ciErrNum = clEnqueueMarker(cqCommandQueue, &startMark);
    ciErrNum |= clFinish(cqCommandQueue);
    shrCheckError(ciErrNum, CL_SUCCESS);
    shrDeltaT(0);

    for(int iter = 0; iter < numIterations; iter++)
        DCT8x8(
            NULL,
            d_Output,
            d_Input,
            stride,
            imageH,
            imageW,
            dir
        );

    ciErrNum  = clEnqueueMarker(cqCommandQueue, &endMark);
    ciErrNum |= clFinish(cqCommandQueue);
    shrCheckError(ciErrNum, CL_SUCCESS);

    //Calculate performance metrics by wallclock time
    double gpuTime = shrDeltaT(0) / (double)numIterations;
    shrLogEx(LOGBOTH | MASTER, 0, "oclDCT8x8, Throughput = %.4f MPixels/s, Time = %.5f s, Size = %u Pixels, NumDevsUsed = %i, Workgroup = %u\n", 
            (1.0e-6 * (double)(imageW * imageH)/ gpuTime), gpuTime, (imageW * imageH), 1, 0); 

    //Get profiler time
    cl_ulong startTime = 0, endTime = 0;
    ciErrNum  = clGetEventProfilingInfo(startMark, CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &startTime, NULL);
    ciErrNum |= clGetEventProfilingInfo(endMark, CL_PROFILING_COMMAND_END, sizeof(cl_ulong), &endTime, NULL);
    shrCheckError(ciErrNum, CL_SUCCESS);
    shrLog("\nOpenCL time: %.5f s\n\n", 1.0e-9 * ((double)endTime - (double)startTime) / (double)numIterations);
#endif

    shrLog("Reading back OpenCL results...\n");
        ciErrNum = clEnqueueReadBuffer(cqCommandQueue, d_Output, CL_TRUE, 0, imageH * stride * sizeof(cl_float), h_OutputGPU, 0, NULL, NULL);
        oclCheckError(ciErrNum, CL_SUCCESS);

    shrLog("Comparing against Host/C++ computation...\n"); 
        DCT8x8CPU(h_OutputCPU, h_Input, stride, imageH, imageW, dir);
        double sum = 0, delta = 0;
        double L2norm;
        for(uint i = 0; i < imageH; i++)
            for(uint j = 0; j < imageW; j++){
                sum += h_OutputCPU[i * stride + j] * h_OutputCPU[i * stride + j];
                delta += (h_OutputGPU[i * stride + j] - h_OutputCPU[i * stride + j]) * (h_OutputGPU[i * stride + j] - h_OutputCPU[i * stride + j]);
            }
        L2norm = sqrt(delta / sum);
        shrLog("Relative L2 norm: %.3e\n\n", L2norm);

    shrLog("Shutting down...\n");
        //Release kernels and program
        closeDCT8x8();

        //Release other OpenCL objects
        ciErrNum  = clReleaseMemObject(d_Output);
        ciErrNum |= clReleaseMemObject(d_Input);
        ciErrNum |= clReleaseCommandQueue(cqCommandQueue);
        ciErrNum |= clReleaseContext(cxGPUContext);
        oclCheckError(ciErrNum, CL_SUCCESS);

        //Release host buffers
        free(h_OutputGPU);
        free(h_OutputCPU);
        free(h_Input);

        //Finish
        shrQAFinishExit(argc, (const char **)argv, (L2norm < 1E-3) ? QA_PASSED : QA_FAILED);
}
Ejemplo n.º 29
0
int main(int argc, char const *argv[])
{
        /* Get platform */
        cl_platform_id platform;
        cl_uint num_platforms;
        cl_int ret = clGetPlatformIDs(1, &platform, &num_platforms);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clGetPlatformIDs' failed\n");
                exit(1);
        }
        
        printf("Number of platforms: %d\n", num_platforms);
        printf("platform=%p\n", platform);
        
        /* Get platform name */
        char platform_name[100];
        ret = clGetPlatformInfo(platform, CL_PLATFORM_NAME, sizeof(platform_name), platform_name, NULL);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clGetPlatformInfo' failed\n");
                exit(1);
        }
        
        printf("platform.name='%s'\n\n", platform_name);
        
        /* Get device */
        cl_device_id device;
        cl_uint num_devices;
        ret = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 1, &device, &num_devices);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clGetDeviceIDs' failed\n");
                exit(1);
        }
        
        printf("Number of devices: %d\n", num_devices);
        printf("device=%p\n", device);
        
        /* Get device name */
        char device_name[100];
        ret = clGetDeviceInfo(device, CL_DEVICE_NAME, sizeof(device_name),
        device_name, NULL);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clGetDeviceInfo' failed\n");
                exit(1);
        }
        
        printf("device.name='%s'\n", device_name);
        printf("\n");
        
        /* Create a Context Object */
        cl_context context;
        context = clCreateContext(NULL, 1, &device, NULL, NULL, &ret);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clCreateContext' failed\n");
                exit(1);
        }
        
        printf("context=%p\n", context);
        
        /* Create a Command Queue Object*/
        cl_command_queue command_queue;
        command_queue = clCreateCommandQueue(context, device, 0, &ret);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clCreateCommandQueue' failed\n");
                exit(1);
        }
        
        printf("command_queue=%p\n", command_queue);
        printf("\n");

        /* Program binary */
        unsigned char *bin;
        size_t bin_len;
        cl_int bin_ret;
        
        /* Read program binary */
        if (argc == 2)
                bin = read_buffer((char *)argv[1], &bin_len);
        else
        {
                printf("error: No binary specified\n");
                exit(1);
        }
        
        /* Create a program */
        cl_program program;
        program = clCreateProgramWithBinary(context, 1, &device, &bin_len, (const unsigned char **)&bin, &bin_ret, &ret);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clCreateProgramWithBinary' failed\n");
                exit(1);
        }
        if (bin_ret != CL_SUCCESS)
        {
                printf("error: Invalid binary for device\n");
                exit(1);
        }
        printf("program=%p\n", program);
        
        /* Free binary */
        free(bin);
        
        printf("program binary loaded\n");
        printf("\n");

        ret = clBuildProgram(program, 1, &device, NULL, NULL, NULL);
        if (ret != CL_SUCCESS )
        {
                size_t size;
                char *log;

                /* Get log size */
                clGetProgramBuildInfo(program, device, CL_PROGRAM_BUILD_LOG,0, NULL, &size);

                /* Allocate log and print */
                log = malloc(size);
                clGetProgramBuildInfo(program, device, CL_PROGRAM_BUILD_LOG,size, log, NULL);
                printf("error: call to 'clBuildProgram' failed:\n%s\n", log);
                
                /* Free log and exit */
                free(log);
                exit(1);
        }

        printf("program built\n");
        printf("\n");
        
        /* Create a Kernel Object*/
        cl_kernel kernel;
        kernel = clCreateKernel(program, "native_tan_float4", &ret);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clCreateKernel' failed\n");
                exit(1);
        }
        
        /* Create and allocate host buffers */
        size_t num_elem = 10;
        
        /* Create and init host side src buffer 0 */
        cl_float4 *src_0_host_buffer;
        src_0_host_buffer = malloc(num_elem * sizeof(cl_float4));
        for (int i = 0; i < num_elem; i++)
                src_0_host_buffer[i] = (cl_float4){{2.0, 2.0, 2.0, 2.0}};
        
        /* Create and init device side src buffer 0 */
        cl_mem src_0_device_buffer;
        src_0_device_buffer = clCreateBuffer(context, CL_MEM_READ_ONLY, num_elem * sizeof(cl_float4), NULL, &ret);
        if (ret != CL_SUCCESS)
        {
                printf("error: could not create source buffer\n");
                exit(1);
        }        
        ret = clEnqueueWriteBuffer(command_queue, src_0_device_buffer, CL_TRUE, 0, num_elem * sizeof(cl_float4), src_0_host_buffer, 0, NULL, NULL);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clEnqueueWriteBuffer' failed\n");
                exit(1);
        }

        /* Create host dst buffer */
        cl_float4 *dst_host_buffer;
        dst_host_buffer = malloc(num_elem * sizeof(cl_float4));
        memset((void *)dst_host_buffer, 1, num_elem * sizeof(cl_float4));

        /* Create device dst buffer */
        cl_mem dst_device_buffer;
        dst_device_buffer = clCreateBuffer(context, CL_MEM_WRITE_ONLY, num_elem *sizeof(cl_float4), NULL, &ret);
        if (ret != CL_SUCCESS)
        {
                printf("error: could not create dst buffer\n");
                exit(1);
        }
        
        /* Set kernel arguments */
        ret = CL_SUCCESS;
        ret |= clSetKernelArg(kernel, 0, sizeof(cl_mem), &src_0_device_buffer);
        ret |= clSetKernelArg(kernel, 1, sizeof(cl_mem), &dst_device_buffer);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clSetKernelArg' failed\n");
                exit(1);
        }

        /* Launch the kernel */
        size_t global_work_size = num_elem;
        size_t local_work_size = num_elem;
        ret = clEnqueueNDRangeKernel(command_queue, kernel, 1, NULL, &global_work_size, &local_work_size, 0, NULL, NULL);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clEnqueueNDRangeKernel' failed\n");
                exit(1);
        }

        /* Wait for it to finish */
        clFinish(command_queue);

        /* Read results from GPU */
        ret = clEnqueueReadBuffer(command_queue, dst_device_buffer, CL_TRUE,0, num_elem * sizeof(cl_float4), dst_host_buffer, 0, NULL, NULL);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clEnqueueReadBuffer' failed\n");
                exit(1);
        }

        /* Dump dst buffer to file */
        char dump_file[100];
        sprintf((char *)&dump_file, "%s.result", argv[0]);
        write_buffer(dump_file, (const char *)dst_host_buffer, num_elem * sizeof(cl_float4));
        printf("Result dumped to %s\n", dump_file);
        /* Free host dst buffer */
        free(dst_host_buffer);

        /* Free device dst buffer */
        ret = clReleaseMemObject(dst_device_buffer);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clReleaseMemObject' failed\n");
                exit(1);
        }
        
        /* Free host side src buffer 0 */
        free(src_0_host_buffer);

        /* Free device side src buffer 0 */
        ret = clReleaseMemObject(src_0_device_buffer);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clReleaseMemObject' failed\n");
                exit(1);
        }

        /* Release kernel */
        ret = clReleaseKernel(kernel);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clReleaseKernel' failed\n");
                exit(1);
        }

        /* Release program */
        ret = clReleaseProgram(program);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clReleaseProgram' failed\n");
                exit(1);
        }
        
        /* Release command queue */
        ret = clReleaseCommandQueue(command_queue);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clReleaseCommandQueue' failed\n");
                exit(1);
        }
        
        /* Release context */
        ret = clReleaseContext(context);
        if (ret != CL_SUCCESS)
        {
                printf("error: call to 'clReleaseContext' failed\n");
                exit(1);
        }
                
        return 0;
}
Ejemplo n.º 30
0
int
main(void)
{
  cl_int err;
  cl_platform_id platforms[MAX_PLATFORMS];
  cl_uint nplatforms;
  cl_device_id devices[MAX_DEVICES];
  cl_uint ndevices;
  cl_uint i, j;

  err = clGetPlatformIDs(MAX_PLATFORMS, platforms, &nplatforms);	
  if (err != CL_SUCCESS)
    return EXIT_FAILURE;

  for (i = 0; i < nplatforms; i++)
    {
      err = clGetDeviceIDs(platforms[i], CL_DEVICE_TYPE_ALL, MAX_DEVICES,
			   devices, &ndevices);
      if (err != CL_SUCCESS)
	return EXIT_FAILURE;
      
      for (j = 0; j < ndevices; j++)
	{
	  cl_context context = clCreateContext(NULL, 1, &devices[j], NULL, NULL, &err);
	  if (err != CL_SUCCESS)
	    return EXIT_FAILURE;
	  cl_command_queue queue = clCreateCommandQueue(context, devices[j], 0, &err);
	  if (err != CL_SUCCESS)
	    return EXIT_FAILURE;

	  const int buf_size = 1024;
	  cl_int host_buf[buf_size];

	  cl_mem buf = clCreateBuffer(context, CL_MEM_READ_WRITE, sizeof(cl_int) * buf_size, NULL, &err);
	  if (err != CL_SUCCESS)
	    return EXIT_FAILURE;
	  cl_event buf_event;
	  if (clEnqueueReadBuffer(queue, buf, CL_TRUE, 0, sizeof(cl_int) * buf_size, &host_buf, 0, NULL, &buf_event) != CL_SUCCESS)
	    return EXIT_FAILURE;
	  clFinish(queue);
	  cl_command_queue event_command_queue;
	  size_t param_val_size_ret;
	  if (clGetEventInfo(buf_event, CL_EVENT_COMMAND_QUEUE, sizeof(cl_command_queue), &event_command_queue, &param_val_size_ret) != CL_SUCCESS)
	    return EXIT_FAILURE;
	  if (param_val_size_ret != sizeof(cl_command_queue) || event_command_queue != queue)
	    return EXIT_FAILURE;

	  cl_command_type command_type;
	  if (clGetEventInfo(buf_event, CL_EVENT_COMMAND_TYPE, sizeof(cl_command_type), &command_type, &param_val_size_ret) != CL_SUCCESS)
	    return EXIT_FAILURE;
	  if (param_val_size_ret != sizeof(cl_command_type) || command_type != CL_COMMAND_READ_BUFFER)
	    return EXIT_FAILURE;

	  cl_int execution_status;
	  if (clGetEventInfo(buf_event, CL_EVENT_COMMAND_EXECUTION_STATUS, sizeof(cl_int), &execution_status, &param_val_size_ret) != CL_SUCCESS)
	    return EXIT_FAILURE;
	  if (param_val_size_ret != sizeof(cl_int) || execution_status != CL_COMPLETE)
	    return EXIT_FAILURE;

	  cl_uint ref_count;
	  if (clGetEventInfo(buf_event, CL_EVENT_REFERENCE_COUNT, sizeof(cl_uint), &ref_count, &param_val_size_ret) != CL_SUCCESS)
	    return EXIT_FAILURE;
	  if (param_val_size_ret != sizeof(cl_uint) || ref_count != 1)
        {
          printf("FAIL: expected refcount 1, got %d\n", ref_count);
          return EXIT_FAILURE;
        }

	  clReleaseEvent(buf_event);
	  clReleaseMemObject(buf);
	  clReleaseCommandQueue(queue);
	}
    }
  return EXIT_SUCCESS;
}