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Diffstat (limited to 'src/tuning/kernels/xger.hpp')
-rw-r--r-- | src/tuning/kernels/xger.hpp | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/tuning/kernels/xger.hpp b/src/tuning/kernels/xger.hpp new file mode 100644 index 00000000..a88fb5d6 --- /dev/null +++ b/src/tuning/kernels/xger.hpp @@ -0,0 +1,122 @@ + +// ================================================================================================= +// 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 uses the auto-tuner to tune the xger OpenCL kernels. +// +// ================================================================================================= + +#include <string> +#include <vector> + +#include "utilities/utilities.hpp" +#include "tuning/tuning.hpp" + +namespace clblast { +// ================================================================================================= + +// Settings for this kernel (default command-line arguments) +TunerDefaults GetTunerDefaults(const int) { + auto settings = TunerDefaults(); + settings.options = {kArgM, kArgN, kArgAlpha}; + settings.default_m = 1024; + settings.default_n = 1024; + return settings; +} + +// Settings for this kernel (general) +template <typename T> +TunerSettings GetTunerSettings(const int, const Arguments<T> &args) { + auto settings = TunerSettings(); + + // Identification of the kernel + settings.kernel_family = "xger"; + settings.kernel_name = "Xger"; + settings.sources = +#include "../src/kernels/level2/level2.opencl" +#include "../src/kernels/level2/xger.opencl" + ; + + // Buffer sizes + settings.size_x = args.m; + settings.size_y = args.n; + settings.size_a = args.m * args.n; + + // Inputs and outputs IDs (X:0, Y:1, A:2, B:3, C:4, temp:5) + settings.inputs = {0, 1, 2}; + settings.outputs = {2}; + + // Sets the base thread configuration + settings.global_size = {args.m, args.n}; + settings.global_size_ref = settings.global_size; + settings.local_size = {1, 1}; + settings.local_size_ref = {8, 8}; + + // Transforms the thread configuration based on the parameters + settings.mul_local = {{"WGS1", "WGS2"}}; + settings.div_global = {{"WPT", "WPT"}}; + + // Sets the tuning parameters and their possible values + settings.parameters = { + {"WGS1", {4, 8, 16, 32, 64, 128, 256, 512}}, + {"WGS2", {1, 2, 4, 8, 16, 32, 64, 128, 256}}, + {"WPT", {1, 2, 4}}, + }; + + // Describes how to compute the performance metrics + settings.metric_amount = (2*args.m*args.n + args.m + args.n) * GetBytes(args.precision); + settings.performance_unit = "GB/s"; + + return settings; +} + +// Tests for valid arguments +template <typename T> +void TestValidArguments(const int, const Arguments<T> &) { } +std::vector<Constraint> SetConstraints(const int) { return {}; } + +// Sets the kernel's arguments +template <typename T> +void SetArguments(const int, Kernel &kernel, const Arguments<T> &args, std::vector<Buffer<T>>& buffers) { + kernel.SetArgument(0, static_cast<int>(args.m)); + kernel.SetArgument(1, static_cast<int>(args.n)); + kernel.SetArgument(2, GetRealArg(args.alpha)); + kernel.SetArgument(3, buffers[0]()); // 0 == X vector + kernel.SetArgument(4, 0); // x_offset + kernel.SetArgument(5, 1); // x_increment + kernel.SetArgument(6, buffers[1]()); // 1 == Y vector + kernel.SetArgument(7, 0); // y_offset + kernel.SetArgument(8, 1); // y_increment + kernel.SetArgument(9, buffers[2]()); // 2 == A matrix + kernel.SetArgument(10, 0); // a_offset + kernel.SetArgument(11, static_cast<int>(args.m)); // a_ld + kernel.SetArgument(12, 0); // a_is_rowmajor +} + +// ================================================================================================= +} // namespace clblast + +// Shortcuts to the clblast namespace +using half = clblast::half; +using float2 = clblast::float2; +using double2 = clblast::double2; + +// Main function (not within the clblast namespace) +int main(int argc, char *argv[]) { + const auto command_line_args = clblast::RetrieveCommandLineArguments(argc, argv); + switch(clblast::GetPrecision(command_line_args)) { + case clblast::Precision::kHalf: clblast::Tuner<half>(argc, argv, 0, clblast::GetTunerDefaults, clblast::GetTunerSettings<half>, clblast::TestValidArguments<half>, clblast::SetConstraints, clblast::SetArguments<half>); break; + case clblast::Precision::kSingle: clblast::Tuner<float>(argc, argv, 0, clblast::GetTunerDefaults, clblast::GetTunerSettings<float>, clblast::TestValidArguments<float>, clblast::SetConstraints, clblast::SetArguments<float>); break; + case clblast::Precision::kDouble: clblast::Tuner<double>(argc, argv, 0, clblast::GetTunerDefaults, clblast::GetTunerSettings<double>, clblast::TestValidArguments<double>, clblast::SetConstraints, clblast::SetArguments<double>); break; + case clblast::Precision::kComplexSingle: clblast::Tuner<float2>(argc, argv, 0, clblast::GetTunerDefaults, clblast::GetTunerSettings<float2>, clblast::TestValidArguments<float2>, clblast::SetConstraints, clblast::SetArguments<float2>); break; + case clblast::Precision::kComplexDouble: clblast::Tuner<double2>(argc, argv, 0, clblast::GetTunerDefaults, clblast::GetTunerSettings<double2>, clblast::TestValidArguments<double2>, clblast::SetConstraints, clblast::SetArguments<double2>); break; + } + return 0; +} + +// ================================================================================================= |