/* bir objedeki canli hucreleri digerine ekler */
void GameOfLife::addLiveCell(const GameOfLife & other)
{
bool serachCheck = true;
int temp;
temp = livingCells.size();
/* eklenen objedeki canli hucre sayisi kadar donen dongu */
for (int i = 0; i < other.livingCells.size(); ++i)
{
/* eklenilen objedeki canli hucre sayisi kadar donen dongu */
for (int k = 0; k < temp; ++k)
{
/* iki objeninde ayni koordinattaki hucrelerinin canli olup olmadigini kontrol eder. */
if((livingCells[k].getX() == other.livingCells[i].getX()) && (livingCells[k].getY() == other.livingCells[i].getY()))
{
/* ayni koordinattaki hucrelerin ikiside canli ise false doner */
serachCheck = false;
break;
}
}
if (serachCheck)
{
livingCells.push_back(other.livingCells[i]);
numOfLiveCell++;
}
serachCheck = true;
}
if (row < other.getRow())
row = other.getRow();
if (column < other.getColumn())
column = other.getColumn();
}
int main(void) {
FILE* programHandle;
size_t programSize, kernelSourceSize;
char *programBuffer, *kernelSource;
// get size of kernel source
programHandle = fopen("kernel.cl", "r");
if (programHandle == NULL)
{
printf("Can't open kernel file!\n");
return 1;
}
fseek(programHandle, 0, SEEK_END);
programSize = ftell(programHandle);
rewind(programHandle);
// read kernel source into buffer
programBuffer = (char*) malloc(programSize + 1);
programBuffer[programSize] = '\0';
fread(programBuffer, sizeof(char), programSize, programHandle);
fclose(programHandle);
// Create game of life board and initialize it
GameOfLife *test = new GameOfLife(COLUMNS, ROWS);
test->setItem(1, 1, 1);
test->setItem(2, 1, 1);
test->setItem(3, 1, 1);
test->setItem(14, 0, 1);
test->setItem(15, 1, 1);
test->setItem(13, 2, 1);
test->setItem(14, 2, 1);
test->setItem(15, 2, 1);
//test->print();
printDevices();
// Get platform and device information
cl_platform_id * platforms = NULL;
cl_uint num_platforms;
//Set up the Platform
cl_int clStatus = clGetPlatformIDs(0, NULL, &num_platforms);
assert(clStatus == 0);
platforms = (cl_platform_id *) malloc(sizeof(cl_platform_id)*num_platforms);
clStatus = clGetPlatformIDs(num_platforms, platforms, NULL);
assert(clStatus == 0);
//Get the devices list and choose the device you want to run on
cl_device_id *device_list = NULL;
cl_uint num_devices;
clStatus = clGetDeviceIDs(platforms[0], CL_DEVICE_TYPE_GPU, 0, NULL, &num_devices);
device_list = (cl_device_id *) malloc(sizeof(cl_device_id)*num_devices);
clStatus = clGetDeviceIDs(platforms[0], CL_DEVICE_TYPE_GPU, num_devices, device_list, NULL);
assert(clStatus == 0);
// Create one OpenCL context for each device in the platform
cl_context context;
context = clCreateContext(NULL, num_devices, device_list, NULL, NULL, &clStatus);
assert(clStatus == 0);
// Create a command queue
cl_command_queue command_queue = clCreateCommandQueue(context, device_list[0], 0, &clStatus);
assert(clStatus == 0);
// Create memory buffers on the device for matrix and result
cl_mem matrix = clCreateBuffer(context, CL_MEM_READ_ONLY, VECTOR_SIZE * sizeof(int), NULL, &clStatus);
assert(clStatus == 0);
cl_mem result = clCreateBuffer(context, CL_MEM_WRITE_ONLY, VECTOR_SIZE * sizeof(int), NULL, &clStatus);
assert(clStatus == 0);
// Copy the Buffer matrix to the device
clStatus = clEnqueueWriteBuffer(command_queue, matrix, CL_TRUE, 0, VECTOR_SIZE * sizeof(int), test->getRow(0), 0, NULL, NULL);
assert(clStatus == 0);
// Create a program from the kernel source
cl_program program = clCreateProgramWithSource(context, 1, (const char **) &programBuffer, &programSize, &clStatus);
assert(clStatus == 0);
// read kernel source back in from program to check
clGetProgramInfo(program, CL_PROGRAM_SOURCE, 0, NULL, &kernelSourceSize);
kernelSource = (char*) malloc(kernelSourceSize);
clGetProgramInfo(program, CL_PROGRAM_SOURCE, kernelSourceSize, kernelSource, NULL);
// Print the kernel source
//printf("\nKernel source:\n\n%s\n", kernelSource);
free(kernelSource);
// Build the program
clStatus = clBuildProgram(program, 1, device_list, NULL, NULL, NULL);
//assert(clStatus==0);
if (clStatus != CL_SUCCESS) {
size_t logSize;
cl_build_status status;
char *programLog;
// check build error and build status first
clGetProgramBuildInfo(program, device_list[0], CL_PROGRAM_BUILD_STATUS, sizeof(cl_build_status), &status, NULL);
// check build log
clGetProgramBuildInfo(program, device_list[0],
CL_PROGRAM_BUILD_LOG, 0, NULL, &logSize);
programLog = (char*) calloc(logSize + 1, sizeof(char));
clGetProgramBuildInfo(program, device_list[0], CL_PROGRAM_BUILD_LOG, logSize + 1, programLog, NULL);
printf("Build failed; error=%d, status=%d, programLog:\n\n%s\n", clStatus, status, programLog);
free(programLog);
return 1;
}
// Create the OpenCL kernel
cl_kernel kernel = clCreateKernel(program, "gameOfLifeKernel", &clStatus);
assert(clStatus == 0);
int rows = ROWS;
int columns = COLUMNS;
// Set the arguments of the kernel
clStatus = clSetKernelArg(kernel, 0, sizeof(int *), (void *) &rows);
assert(clStatus == 0);
clStatus = clSetKernelArg(kernel, 1, sizeof(int *), (void *) &columns);
assert(clStatus == 0);
clStatus = clSetKernelArg(kernel, 2, sizeof(cl_mem), (void *) &matrix);
assert(clStatus == 0);
clStatus = clSetKernelArg(kernel, 3, sizeof(cl_mem), (void *) &result);
assert(clStatus == 0);
// Execute the OpenCL kernel on the list
size_t global_size = VECTOR_SIZE; // Process the entire lists
size_t local_size = 1; // Process one item at a time
// ----- NORMAL STEP -----
Timer::bit64 start, end;
start = Timer::getTime();
test->step();
end = Timer::getTime();
//test->print();
std::cout << "Time elapsed normal step: " << end - start << std::endl;
// -----------------------
start = Timer::getTime(); // START -----
clStatus = clEnqueueNDRangeKernel(command_queue, kernel, 1, NULL, &global_size, &local_size, 0, NULL, NULL);
assert(clStatus == 0);
// Read the cl memory result on device to the host variable result
clStatus = clEnqueueReadBuffer(command_queue, result, CL_TRUE, 0, VECTOR_SIZE * sizeof(int), test->getRow(0), 0, NULL, NULL);
assert(clStatus == 0);
// Clean up and wait for all the comands to complete.
clStatus = clFlush(command_queue);
assert(clStatus == 0);
clStatus = clFinish(command_queue); // to make sure the kernel completed
assert(clStatus == 0);
end = Timer::getTime(); // END -----
//test->print();
std::cout << "Time elapsed with OpenCL: " << end - start << std::endl;
// Finally release all OpenCL allocated objects and host buffers
clStatus = clReleaseKernel(kernel);
assert(clStatus == 0);
clStatus = clReleaseProgram(program);
assert(clStatus == 0);
clStatus = clReleaseMemObject(matrix);
assert(clStatus == 0);
clStatus = clReleaseMemObject(result);
assert(clStatus == 0);
clStatus = clReleaseCommandQueue(command_queue);
assert(clStatus == 0);
clStatus = clReleaseContext(context);
assert(clStatus == 0);
free(platforms);
free(device_list);
delete test;
std::cout << "Press Enter to continue...";
std::cin.get();
return 0;
}
