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authorCNugteren <web@cedricnugteren.nl>2015-05-30 12:30:43 +0200
committerCNugteren <web@cedricnugteren.nl>2015-05-30 12:30:43 +0200
commitbc5a341dfe591946e925db315fc7d8c0c25c2938 (patch)
treeb216ab5eee4863e3807d92b5ddd19fa22197ed22 /test/performance/routines/xaxpy.cc
parentc7b054ea6747039f4405fd93da6e924f3e5c7f4b (diff)
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+
+// =================================================================================================
+// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
+// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
+// width of 100 characters per line.
+//
+// Author(s):
+// Cedric Nugteren <www.cedricnugteren.nl>
+//
+// This file implements the Xaxpy command-line interface tester.
+//
+// =================================================================================================
+
+#include <string>
+#include <vector>
+#include <exception>
+
+#include "wrapper_clblas.h"
+#include "performance/client.h"
+
+namespace clblast {
+// =================================================================================================
+
+// The client, used for performance testing. It contains the function calls to CLBlast and to other
+// libraries to compare against.
+template <typename T>
+void PerformanceXaxpy(const Arguments<T> &args,
+ const Buffer &x_vec, const Buffer &y_vec,
+ CommandQueue &queue) {
+
+ // Creates the CLBlast lambda
+ auto clblast_lambda = [&args, &x_vec, &y_vec, &queue]() {
+ auto queue_plain = queue();
+ auto event = cl_event{};
+ auto status = Axpy(args.n, args.alpha,
+ x_vec(), args.x_offset, args.x_inc,
+ y_vec(), args.y_offset, args.y_inc,
+ &queue_plain, &event);
+ clWaitForEvents(1, &event);
+ if (status != StatusCode::kSuccess) {
+ throw std::runtime_error("CLBlast error: "+ToString(static_cast<int>(status)));
+ }
+ };
+
+ // Creates the clBLAS lambda (for comparison)
+ auto clblas_lambda = [&args, &x_vec, &y_vec, &queue]() {
+ auto queue_plain = queue();
+ auto event = cl_event{};
+ auto status = clblasXaxpy(args.n, args.alpha,
+ x_vec(), args.x_offset, args.x_inc,
+ y_vec(), args.y_offset, args.y_inc,
+ 1, &queue_plain, 0, nullptr, &event);
+ clWaitForEvents(1, &event);
+ if (status != CL_SUCCESS) {
+ throw std::runtime_error("clBLAS error: "+ToString(static_cast<int>(status)));
+ }
+ };
+
+ // Runs the routines and collect the timings
+ auto ms_clblast = TimedExecution(args.num_runs, clblast_lambda);
+ auto ms_clblas = TimedExecution(args.num_runs, clblas_lambda);
+
+ // Prints the performance of both libraries
+ const auto flops = 2 * args.n;
+ const auto bytes = (3 * args.n) * sizeof(T);
+ const auto output_ints = std::vector<size_t>{args.n, args.x_inc, args.y_inc,
+ args.x_offset, args.y_offset};
+ const auto output_strings = std::vector<std::string>{ToString(args.alpha)};
+ PrintTableRow(output_ints, output_strings, args.no_abbrv,
+ ms_clblast, ms_clblas, flops, bytes);
+}
+
+// =================================================================================================
+
+// Main function which calls the common client code with the routine-specific function as argument.
+void ClientXaxpy(int argc, char *argv[]) {
+ const auto o = std::vector<std::string>{kArgN, kArgXInc, kArgYInc,
+ kArgXOffset, kArgYOffset, kArgAlpha};
+ switch(GetPrecision(argc, argv)) {
+ case Precision::kHalf: throw std::runtime_error("Unsupported precision mode");
+ case Precision::kSingle: ClientXY<float>(argc, argv, PerformanceXaxpy<float>, o); break;
+ case Precision::kDouble: ClientXY<double>(argc, argv, PerformanceXaxpy<double>, o); break;
+ case Precision::kComplexSingle: ClientXY<float2>(argc, argv, PerformanceXaxpy<float2>, o); break;
+ case Precision::kComplexDouble: ClientXY<double2>(argc, argv, PerformanceXaxpy<double2>, o); break;
+ }
+}
+
+// =================================================================================================
+} // namespace clblast
+
+// Main function (not within the clblast namespace)
+int main(int argc, char *argv[]) {
+ clblast::ClientXaxpy(argc, argv);
+ return 0;
+}
+
+// =================================================================================================