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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 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;
+}
+
+// =================================================================================================