diff options
Diffstat (limited to 'external/clBLAS/src/samples/example_ssyr2k.c')
-rw-r--r-- | external/clBLAS/src/samples/example_ssyr2k.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/external/clBLAS/src/samples/example_ssyr2k.c b/external/clBLAS/src/samples/example_ssyr2k.c deleted file mode 100644 index 64ef2550..00000000 --- a/external/clBLAS/src/samples/example_ssyr2k.c +++ /dev/null @@ -1,193 +0,0 @@ -/* ************************************************************************ - * Copyright 2013 Advanced Micro Devices, Inc. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * ************************************************************************/ - - -#include <sys/types.h> -#include <stdio.h> -#include <string.h> - -/* Include CLBLAS header. It automatically includes needed OpenCL header, - * so we can drop out explicit inclusion of cl.h header. - */ -#include <clBLAS.h> - -/* This example uses predefined matrices and their characteristics for - * simplicity purpose. - */ -static const clblasOrder order = clblasRowMajor; -static const clblasUplo uplo = clblasUpper; -static const clblasTranspose transAB = clblasNoTrans; - -static const size_t N = 5; -static const size_t K = 4; - -static const cl_float alpha = 10; - -static const cl_float A[] = { - 11, 12, 13, 14, - 21, 22, 23, 24, - 31, 32, 33, 34, - 41, 42, 43, 44, - 51, 52, 53, 54 -}; -static const size_t lda = 4; /* i.e. lda = K */ - -static cl_float B[] = { - 11, 12, 13, 14, - 21, 22, 23, 24, - 31, 32, 33, 34, - 41, 42, 43, 44, - 51, 52, 53, 54 -}; -static const size_t ldb = 4; /* i.e. ldb = K */ - -static const cl_float beta = 20; - -static cl_float C[] = { - 11, 12, 13, 14, 15, - 12, 22, 23, 24, 25, - 13, 23, 33, 34, 35, - 14, 24, 34, 44, 45, - 15, 25, 35, 45, 55 -}; -static const size_t ldc = 5; /* i.e. ldc = N */ - -static cl_float result[5*5]; /* ldc * N */ - -const size_t off = 1; -static const size_t offA = 4 + 1; /* K + off */ -static const size_t offB = 4 + 1; /* K + off */ -static const size_t offC = 5 + 1; /* N + off */ - -static void -printResult(const char* str) -{ - size_t i, j, nrows; - - printf("%s:\n", str); - - nrows = (sizeof(result) / sizeof(cl_float)) / ldc; - for (i = 0; i < nrows; i++) { - for (j = 0; j < ldc; j++) { - printf("%d ", (int)result[i * ldc + j]); - } - printf("\n"); - } -} - -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 bufA, bufB, bufC; - cl_event event = NULL; - int ret = 0; - - /* 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. */ - bufA = clCreateBuffer(ctx, CL_MEM_READ_ONLY, N * K * sizeof(*A), - NULL, &err); - bufB = clCreateBuffer(ctx, CL_MEM_READ_ONLY, N * K * sizeof(*B), - NULL, &err); - bufC = clCreateBuffer(ctx, CL_MEM_READ_WRITE, N * N * sizeof(*C), - NULL, &err); - - err = clEnqueueWriteBuffer(queue, bufA, CL_TRUE, 0, - N * K * sizeof(*A), A, 0, NULL, NULL); - err = clEnqueueWriteBuffer(queue, bufB, CL_TRUE, 0, - N * K * sizeof(*B), B, 0, NULL, NULL); - err = clEnqueueWriteBuffer(queue, bufC, CL_TRUE, 0, - N * N * sizeof(*C), C, 0, NULL, NULL); - - /* Call clblas extended function. Perform SYR2K for the lower right sub-matrices */ - err = clblasSsyr2k(order, uplo, transAB, N - off, K - off, - alpha, bufA, offA, lda, bufB, offB, ldb, - beta, bufC, offC, ldc, 1, &queue, - 0, NULL, &event); - - if (err != CL_SUCCESS) { - printf("clblasSsyr2kEx() 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, bufC, CL_TRUE, 0, - N * N * sizeof(*result), - result, 0, NULL, NULL); - - /* At this point you will get the result of SSYR2K placed in 'result' array. */ - puts(""); - printResult("clblasSsyr2kEx result"); - } - - - /* Release OpenCL memory objects. */ - clReleaseMemObject(bufC); - clReleaseMemObject(bufB); - clReleaseMemObject(bufA); - - /* Finalize work with clblas. */ - clblasTeardown(); - - /* Release OpenCL working objects. */ - clReleaseCommandQueue(queue); - clReleaseContext(ctx); - - return ret; -} |