int mri(
float* img,
float complex* f,
float* mask,
float lambda,
int N1,
int N2)
{
int i, j;
float complex* f0 = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dx = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dy = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dx_new = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dy_new = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dtildex = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dtildey = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* u_fft2 = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* u = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* fftmul = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* Lap = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* diff = (float complex*) calloc(N1*N2,sizeof(float complex));
float sum = 0;
float scale = sqrtf(N1*N2);
Lap(N1-1, N2-1) = 0.f;
Lap(N1-1, 0) = 1.f;
Lap(N1-1, 1) = 0.f;
Lap(0, N2-1) = 1.f;
Lap(0, 0) = -4.f;
Lap(0, 1) = 1.f;
Lap(1, N2-1) = 0.f;
Lap(1, 0) = 1.f;
Lap(1, 1) = 0.f;
float complex *w1;
float complex *w2;
float complex *buff;
double lambdaGamma1 = lambda/Gamma1;
double lambdaGamma1Scale = lambda/Gamma1*scale;
float Thresh=1.0/Gamma1;
MPI_Datatype mpi_complexf;
MPI_Type_contiguous(2, MPI_FLOAT, &mpi_complexf);
MPI_Type_commit(&mpi_complexf);
int np, rank;
MPI_Comm_size(MPI_COMM_WORLD ,&np);
MPI_Comm_rank(MPI_COMM_WORLD ,&rank);
int chunksize = N1/np;
int start = rank * chunksize;
int cnt[np];
int disp[np];
for (i = 0 ; i < np - 1; i ++) {
cnt[i] = chunksize * N2 ;
disp[i] = chunksize * i * N2;
}
cnt[i] = (chunksize + N1%np) * N2;
disp[i] = chunksize * i * N2;
if (rank == np - 1)
chunksize += N1%np;
int end = start + chunksize;
for(i=start; i<chunksize; i++)
for(j=0; j<N2; j++)
sum += (SQR(crealf(f(i,j))/N1) + SQR(cimagf(f(i,j))/N1));
MPI_Allreduce(&sum, &sum, 1, MPI_FLOAT, MPI_SUM, MPI_COMM_WORLD);
float normFactor = 1.f/sqrtf(sum);
for(i=0; i<N1; i++) {
for(j=0; j<N2; j++) {
f(i, j) = f(i, j)*normFactor;
f0(i, j) = f(i, j);
}
}
dft_init(&w1, &w2, &buff, N1, N2);
dft(Lap, Lap, w1, w2, buff, N1, N2, start, end, cnt, disp, mpi_complexf, rank);
MPI_Status *status;
for(i=start;i<end;i++)
for(j=0;j<N2;j++)
fftmul(i,j) = 1.0/((lambda/Gamma1)*mask(i,j) - Lap(i,j) + Gamma2);
int OuterIter,iter;
for(OuterIter= 0; OuterIter<MaxOutIter; OuterIter++) {
for(iter = 0; iter<MaxIter; iter++) {
for(i=start;i<end;i++)
for(j=0;j<N2;j++)
diff(i,j) = dtildex(i,j)-dtildex(i,(j-1)>=0?(j-1):0) + dtildey(i,j)- dtildey((i-1)>=0?(i-1):0,j) ;
dft(diff, diff, w1, w2, buff, N1, N2, start, end, cnt, disp, mpi_complexf, rank);
for(i=start;i<end;i++) {
for(j=0;j<N2;j++) {
u_fft2(i,j) = fftmul(i,j)*(f(i,j)*lambdaGamma1Scale-diff(i,j)+Gamma2*u_fft2(i,j)) ;
if (iter == MaxIter - 1)
f(i,j) += f0(i,j) - mask(i,j)*u_fft2(i,j)/scale;
}
}
idft(u, u_fft2, w1, w2, buff, N1, N2, start, end, cnt, disp, mpi_complexf, rank);
//MPI_Allgatherv(u + disp[rank], cnt[rank], mpi_complexf, u, cnt, disp, mpi_complexf, MPI_COMM_WORLD);
if (rank == np - 1)
MPI_Send(u + disp[rank], N2, mpi_complexf, rank - 1, 0, MPI_COMM_WORLD);
else if (rank == 0)
MPI_Recv(u + disp[rank] + cnt[rank], N2, mpi_complexf, rank + 1, 0, MPI_COMM_WORLD, status);
else {
MPI_Recv(u + disp[rank] + cnt[rank], N2, mpi_complexf, rank + 1, 0, MPI_COMM_WORLD, status);
MPI_Send(u + disp[rank], N2, mpi_complexf, rank - 1, 0, MPI_COMM_WORLD);
}
for(i=start;i<end;i++) {
for(j=0;j<N2;j++) {
float tmp;
dx(i,j) = u(i,j<(N2-1)?(j+1):j)-u(i,j)+dx(i,j)-dtildex(i,j) ;
dy(i,j) = u(i<(N1-1)?(i+1):i,j)-u(i,j)+dy(i,j)-dtildey(i,j) ;
tmp = sqrtf(SQR(crealf(dx(i,j)))+SQR(cimagf(dx(i,j))) + SQR(crealf(dy(i,j)))+SQR(cimagf(dy(i,j))));
tmp = max(0,tmp-Thresh)/(tmp+(tmp<Thresh));
dx_new(i,j) =dx(i,j)*tmp;
dy_new(i,j) =dy(i,j)*tmp;
dtildex(i,j) = 2*dx_new(i,j) - dx(i,j);
dtildey(i,j) = 2*dy_new(i,j) - dy(i,j);
dx(i,j) = dx_new(i,j);
dy(i,j) = dy_new(i,j);
}
}
//MPI_Allgatherv(dtildey + disp[rank], cnt[rank], mpi_complexf, dtildey, cnt, disp, mpi_complexf, MPI_COMM_WORLD);
if (rank == np - 1)
MPI_Recv(dtildey + disp[rank] - N2, N2, mpi_complexf, rank - 1, 0, MPI_COMM_WORLD, status);
else if (rank == 0)
MPI_Send(dtildey + disp[rank] + cnt[rank] - N2, N2, mpi_complexf, rank + 1, 0, MPI_COMM_WORLD);
else {
MPI_Recv(dtildey + disp[rank] - N2, N2, mpi_complexf, rank - 1, 0, MPI_COMM_WORLD, status);
MPI_Send(dtildey + disp[rank] + cnt[rank] - N2, N2, mpi_complexf, rank + 1, 0, MPI_COMM_WORLD);
}
}
}
for(i=start; i<end; i++) {
for(j=0; j<N2; j++) {
img(i, j) = sqrt(SQR(crealf(u(i, j))) + SQR(cimagf(u(i, j))));
}
}
MPI_Gatherv(img + disp[rank], cnt[rank], MPI_FLOAT, img, cnt, disp, MPI_FLOAT, 0, MPI_COMM_WORLD);
free(w1);
free(w2);
free(buff);
MPI_Finalize();
if (rank > 0)
exit(0);
return 0;
}
int mri(
float* img,
float complex* f,
float* mask,
float lambda,
int N1,
int N2)
{
int i, j;
float complex* f0 = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dx = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dy = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dx_new = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dy_new = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dtildex = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dtildey = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* u_fft2 = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* u = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* fftmul = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* Lap = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* diff = (float complex*) calloc(N1*N2,sizeof(float complex));
float sum = 0;
for(i=0; i<N1; i++)
for(j=0; j<N2; j++)
sum += (SQR(crealf(f(i,j))/N1) + SQR(cimagf(f(i,j))/N1));
float normFactor = 1.f/sqrtf(sum);
float scale = sqrtf(N1*N2);
for(i=0; i<N1; i++) {
for(j=0; j<N2; j++) {
f(i, j) = f(i, j)*normFactor;
f0(i, j) = f(i, j);
}
}
Lap(N1-1, N2-1) = 0.f;
Lap(N1-1, 0) = 1.f;
Lap(N1-1, 1) = 0.f;
Lap(0, N2-1) = 1.f;
Lap(0, 0) = -4.f;
Lap(0, 1) = 1.f;
Lap(1, N2-1) = 0.f;
Lap(1, 0) = 1.f;
Lap(1, 1) = 0.f;
float complex *w1;
float complex *w2;
float complex *buff;
dft_init(&w1, &w2, &buff, N1, N2);
dft(Lap, Lap, w1, w2, buff, N1, N2);
for(i=0;i<N1;i++)
for(j=0;j<N2;j++)
fftmul(i,j) = 1.0/((lambda/Gamma1)*mask(i,j) - Lap(i,j) + Gamma2);
int OuterIter,iter;
for(OuterIter= 0; OuterIter<MaxOutIter; OuterIter++) {
for(iter = 0; iter<MaxIter; iter++) {
for(i=0;i<N1;i++)
for(j=0;j<N2;j++)
diff(i,j) = dtildex(i,j)-dtildex(i,(j-1)>=0?(j-1):0) + dtildey(i,j)- dtildey((i-1)>=0?(i-1):0,j) ;
dft(diff, diff, w1, w2, buff, N1, N2);
for(i=0;i<N1;i++)
for(j=0;j<N2;j++)
u_fft2(i,j) = fftmul(i,j)*(f(i,j)*lambda/Gamma1*scale-diff(i,j)+Gamma2*u_fft2(i,j)) ;
idft(u, u_fft2, w1, w2, buff, N1, N2);
for(i=0;i<N1;i++) {
for(j=0;j<N2;j++) {
float tmp;
float Thresh=1.0/Gamma1;
dx(i,j) = u(i,j<(N2-1)?(j+1):j)-u(i,j)+dx(i,j)-dtildex(i,j) ;
dy(i,j) = u(i<(N1-1)?(i+1):i,j)-u(i,j)+dy(i,j)-dtildey(i,j) ;
tmp = sqrtf(SQR(crealf(dx(i,j)))+SQR(cimagf(dx(i,j))) + SQR(crealf(dy(i,j)))+SQR(cimagf(dy(i,j))));
tmp = max(0,tmp-Thresh)/(tmp+(tmp<Thresh));
dx_new(i,j) =dx(i,j)*tmp;
dy_new(i,j) =dy(i,j)*tmp;
dtildex(i,j) = 2*dx_new(i,j) - dx(i,j);
dtildey(i,j) = 2*dy_new(i,j) - dy(i,j);
dx(i,j) = dx_new(i,j);
dy(i,j) = dy_new(i,j);
}
}
}
for(i=0;i<N1;i++) {
for(j=0;j<N2;j++) {
f(i,j) += f0(i,j) - mask(i,j)*u_fft2(i,j)/scale;
}
}
}
for(i=0; i<N1; i++) {
for(j=0; j<N2; j++) {
img(i, j) = sqrt(SQR(crealf(u(i, j))) + SQR(cimagf(u(i, j))));
}
}
free(w1);
free(w2);
free(buff);
return 0;
}
int mri(
float* img,
float complex* f,
float* mask,
float lambda,
int N1,
int N2)
{
int i, j;
// Use this to check the output of each API call
cl_int status;
// Retrieve the number of platforms
cl_uint numPlatforms = 0;
status = clGetPlatformIDs(0, NULL, &numPlatforms);
// Allocate enough space for each platform
cl_platform_id *platforms = NULL;
platforms = (cl_platform_id*)malloc(
numPlatforms*sizeof(cl_platform_id));
// Fill in the platforms
status = clGetPlatformIDs(numPlatforms, platforms, NULL);
// Retrieve the number of devices
cl_uint numDevices = 0;
status = clGetDeviceIDs(platforms[0], CL_DEVICE_TYPE_ALL, 0,
NULL, &numDevices);
// Allocate enough space for each device
cl_device_id *devices;
devices = (cl_device_id*)malloc(
numDevices*sizeof(cl_device_id));
// Fill in the devices
status = clGetDeviceIDs(platforms[0], CL_DEVICE_TYPE_ALL,
numDevices, devices, NULL);
// Create a context and associate it with the devices
cl_context context;
context = clCreateContext(NULL, numDevices, devices, NULL,
NULL, &status);
// Create a command queue and associate it with the device
cl_command_queue cmdQueue;
cmdQueue = clCreateCommandQueue(context, devices[0], 0,
&status);
// Create a buffer object that will contain the data
// from the host array A
float complex* f0 = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dx = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dy = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dx_new = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dy_new = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dtildex = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* dtildey = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* u_fft2 = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* u = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* fftmul = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* Lap = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex* diff = (float complex*) calloc(N1*N2,sizeof(float complex));
float complex *w1 = (float complex*)malloc(((N2-1)*(N2-1)+1)*sizeof(float complex));
float complex *w2 = (float complex*)malloc(((N1-1)*(N1-1)+1)*sizeof(float complex));
float complex *buff = (float complex*)malloc(N2*N1*sizeof(float complex));
Lap(N1-1, N2-1) = 0.f;
Lap(N1-1, 0) = 1.f;
Lap(N1-1, 1) = 0.f;
Lap(0, N2-1) = 1.f;
Lap(0, 0) = -4.f;
Lap(0, 1) = 1.f;
Lap(1, N2-1) = 0.f;
Lap(1, 0) = 1.f;
Lap(1, 1) = 0.f;
cl_mem cl_img = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(float), NULL, &status);
cl_mem cl_mask = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(float), NULL, &status);
cl_mem cl_f = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_f0 = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_dx = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_dy = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_dx_new = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_dy_new = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_dtildex = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_dtildey = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_u_fft2 = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_u = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_fftmul = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_Lap = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_diff = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
cl_mem cl_w1 = clCreateBuffer(context, CL_MEM_READ_WRITE, (N2*N2)*sizeof(cl_float2), NULL, &status);
cl_mem cl_w2 = clCreateBuffer(context, CL_MEM_READ_WRITE, (N1*N1)*sizeof(cl_float2), NULL, &status);
cl_mem cl_buff = clCreateBuffer(context, CL_MEM_READ_WRITE, N1*N2*sizeof(cl_float2), NULL, &status);
status = clEnqueueWriteBuffer(cmdQueue, cl_mask, CL_FALSE, 0, N1*N2*sizeof(float), mask, 0, NULL, NULL);
status = clEnqueueWriteBuffer(cmdQueue, cl_f, CL_FALSE, 0, N1*N2*sizeof(cl_float2), f, 0, NULL, NULL);
status = clEnqueueWriteBuffer(cmdQueue, cl_Lap, CL_FALSE, 0, N1*N2*sizeof(cl_float2), Lap, 0, NULL, NULL);
cl_program program = clCreateProgramWithSource(context, 1,
(const char**)&kernel, NULL, &status);
status = clBuildProgram(program, numDevices, devices, NULL, NULL, NULL);
cl_kernel ker;
size_t globalWorkSize[2]={N1,N2};
float sum = 0;
for(i=0; i<N1; i++)
for(j=0; j<N2; j++)
sum += (SQR(crealf(f(i,j))/N1) + SQR(cimagf(f(i,j))/N1));
float normFactor = 1.f/sqrtf(sum);
float scale = sqrtf(N1*N2);
ker = clCreateKernel(program, "loop1", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_f);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_f0);
status = clSetKernelArg(ker, 2, sizeof(cl_float2), &normFactor);
status = clSetKernelArg(ker, 3, sizeof(int), &N1);
status = clSetKernelArg(ker, 4, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
w1[0] = 1;
w2[0] = 1;
dft_init(&w1, &w2, &buff, N1, N2);
status = clEnqueueWriteBuffer(cmdQueue, cl_w1, CL_FALSE, 0, ((N2-1)*(N2-1)+1)*sizeof(cl_float2), w1, 0, NULL, NULL);
status = clEnqueueWriteBuffer(cmdQueue, cl_w2, CL_FALSE, 0, ((N1-1)*(N1-1)+1)*sizeof(cl_float2), w2, 0, NULL, NULL);
status = clEnqueueWriteBuffer(cmdQueue, cl_buff, CL_FALSE, 0, N1*N2*sizeof(cl_float2), buff, 0, NULL, NULL);
ker = clCreateKernel(program, "dft1", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_Lap);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_Lap);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_w1);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_w2);
status = clSetKernelArg(ker, 4, sizeof(cl_mem), &cl_buff);
status = clSetKernelArg(ker, 5, sizeof(int), &N1);
status = clSetKernelArg(ker, 6, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
if (status != CL_SUCCESS)
printf("error: %d\n", status);
ker = clCreateKernel(program, "dft2", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_Lap);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_Lap);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_w1);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_w2);
status = clSetKernelArg(ker, 4, sizeof(cl_mem), &cl_buff);
status = clSetKernelArg(ker, 5, sizeof(int), &N1);
status = clSetKernelArg(ker, 6, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
if (status != CL_SUCCESS)
printf("error: %d\n", status);
ker = clCreateKernel(program, "loop2", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_fftmul);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_Lap);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_mask);
status = clSetKernelArg(ker, 3, sizeof(float), &lambda);
status = clSetKernelArg(ker, 4, sizeof(int), &N1);
status = clSetKernelArg(ker, 5, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker,2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
float complex *tmp = (float complex*)malloc(N2*N1*sizeof(float complex));
float complex *tmp2 = (float complex*)malloc(N2*N1*sizeof(float complex));
int OuterIter,iter;
for(OuterIter= 0; OuterIter<MaxOutIter; OuterIter++) {
for(iter = 0; iter<MaxIter; iter++) {
ker = clCreateKernel(program, "loop3", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_diff);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_dtildex);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_dtildey);
status = clSetKernelArg(ker, 3, sizeof(int), &N1);
status = clSetKernelArg(ker, 4, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
ker = clCreateKernel(program, "dft1", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_diff);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_diff);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_w1);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_w2);
status = clSetKernelArg(ker, 4, sizeof(cl_mem), &cl_buff);
status = clSetKernelArg(ker, 5, sizeof(int), &N1);
status = clSetKernelArg(ker, 6, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
if (status != CL_SUCCESS)
printf("error: %d\n", status);
ker = clCreateKernel(program, "dft2", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_diff);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_diff);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_w1);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_w2);
status = clSetKernelArg(ker, 4, sizeof(cl_mem), &cl_buff);
status = clSetKernelArg(ker, 5, sizeof(int), &N1);
status = clSetKernelArg(ker, 6, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
if (status != CL_SUCCESS)
printf("error: %d\n", status);
//dft(diff, diff, w1, w2, buff, N1, N2);
ker = clCreateKernel(program, "loop4", &status);
int more = (iter == MaxIter - 1);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_fftmul);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_f);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_diff);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_u_fft2);
status = clSetKernelArg(ker, 4, sizeof(int), &N1);
status = clSetKernelArg(ker, 5, sizeof(int), &N2);
status = clSetKernelArg(ker, 6, sizeof(float), &scale);
status = clSetKernelArg(ker, 7, sizeof(float), &lambda);
status= clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
ker = clCreateKernel(program, "idft1", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_u);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_u_fft2);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_w1);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_w2);
status = clSetKernelArg(ker, 4, sizeof(cl_mem), &cl_buff);
status = clSetKernelArg(ker, 5, sizeof(int), &N1);
status = clSetKernelArg(ker, 6, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
ker = clCreateKernel(program, "idft2", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_u);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_u_fft2);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_w1);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_w2);
status = clSetKernelArg(ker, 4, sizeof(cl_mem), &cl_buff);
status = clSetKernelArg(ker, 5, sizeof(int), &N1);
status = clSetKernelArg(ker, 6, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
ker = clCreateKernel(program, "loop5", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_dx);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_dy);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_u);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_dtildex);
status = clSetKernelArg(ker, 4, sizeof(cl_mem), &cl_dtildey);
status = clSetKernelArg(ker, 5, sizeof(cl_mem), &cl_dx_new);
status = clSetKernelArg(ker, 6, sizeof(cl_mem), &cl_dy_new);
status = clSetKernelArg(ker, 7, sizeof(int), &N1);
status = clSetKernelArg(ker, 8, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
}
/*
ker = clCreateKernel(program, "last_loop", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_f);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_f0);
status = clSetKernelArg(ker, 2, sizeof(cl_mem), &cl_mask);
status = clSetKernelArg(ker, 3, sizeof(cl_mem), &cl_u_fft2);
status = clSetKernelArg(ker, 4, sizeof(float), &scale);
status = clSetKernelArg(ker, 5, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
if (status != CL_SUCCESS)
printf("error: %d\n", status);
*/
clEnqueueReadBuffer(cmdQueue, cl_f, CL_TRUE, 0, N1*N2*sizeof(float), f, 0, NULL, NULL);
clEnqueueReadBuffer(cmdQueue, cl_f0, CL_TRUE, 0, N1*N2*sizeof(float), f0, 0, NULL, NULL);
clEnqueueReadBuffer(cmdQueue, cl_u_fft2, CL_TRUE, 0, N1*N2*sizeof(float), u_fft2, 0, NULL, NULL);
for(i=0;i<N1;i++) {
for(j=0;j<N2;j++) {
f(i,j) += f0(i,j) - mask(i,j)*u_fft2(i,j)/scale;
}
}
clEnqueueWriteBuffer(cmdQueue, cl_f, CL_TRUE, 0, N1*N2*sizeof(float), f, 0, NULL, NULL);
}
ker = clCreateKernel(program, "loop7", &status);
status = clSetKernelArg(ker, 0, sizeof(cl_mem), &cl_img);
status = clSetKernelArg(ker, 1, sizeof(cl_mem), &cl_u);
status = clSetKernelArg(ker, 2, sizeof(int), &N1);
status = clSetKernelArg(ker, 3, sizeof(int), &N2);
status = clEnqueueNDRangeKernel(cmdQueue, ker, 2, NULL, globalWorkSize, NULL, 0, NULL, NULL);
clEnqueueReadBuffer(cmdQueue, cl_img, CL_TRUE, 0, N1*N2*sizeof(float), img, 0, NULL, NULL);
clReleaseKernel(ker);
clReleaseProgram(program);
clReleaseCommandQueue(cmdQueue);
clReleaseMemObject(cl_img);
clReleaseMemObject(cl_mask);
clReleaseMemObject(cl_f);
clReleaseMemObject(cl_f0);
clReleaseMemObject(cl_dx);
clReleaseMemObject(cl_dy);
clReleaseMemObject(cl_dx_new);
clReleaseMemObject(cl_dy_new);
clReleaseMemObject(cl_dtildex);
clReleaseMemObject(cl_dtildey);
clReleaseMemObject(cl_u_fft2);
clReleaseMemObject(cl_u);
clReleaseMemObject(cl_fftmul);
clReleaseMemObject(cl_Lap);
clReleaseMemObject(cl_diff);
clReleaseMemObject(cl_w1);
clReleaseMemObject(cl_w2);
clReleaseMemObject(cl_buff);
clReleaseContext(context);
free(platforms);
free(devices);
free(w1);
free(w2);
free(buff);
return 0;
}
