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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 CLTune auto-tuner to tune the pad OpenCL kernels.
//
// =================================================================================================
#include <string>
#include <vector>
#include "utilities/utilities.hpp"
#include "tuning/tuning.hpp"
namespace clblast {
// =================================================================================================
// See comment at top of file for a description of the class
template <typename T>
class TunePad {
public:
// Settings for this kernel (default command-line arguments)
static TunerDefaults GetTunerDefaults() {
auto settings = TunerDefaults();
settings.options = {kArgM, kArgN, kArgAlpha};
settings.default_m = 1024;
settings.default_n = 1024;
return settings;
}
// Settings for this kernel (general)
static TunerSettings GetTunerSettings(const Arguments<T> &args) {
auto settings = TunerSettings();
// Identification of the kernel
settings.kernel_family = "pad";
settings.kernel_name = "CopyPadMatrix";
settings.sources =
#include "../src/kernels/common.opencl"
#include "../src/kernels/level3/level3.opencl"
#include "../src/kernels/level3/copy_pad.opencl"
;
// Buffer sizes
settings.size_a = args.m * args.n;
settings.size_b = args.m * args.n;
// 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 = {{"PAD_DIMX", "PAD_DIMY"}};
settings.div_global = {{"PAD_WPTX", "PAD_WPTY"}};
// Sets the tuning parameters and their possible values
settings.parameters = {
{"PAD_DIMX", {8, 16, 32}},
{"PAD_DIMY", {8, 16, 32}},
{"PAD_WPTX", {1, 2, 4}},
{"PAD_WPTY", {1, 2, 4}},
};
// Describes how to compute the performance metrics
settings.metric_amount = 2 * args.m * args.n * GetBytes(args.precision);
settings.performance_unit = "GB/s";
return settings;
}
// Tests for valid arguments
static void TestValidArguments(const Arguments<T> &) { }
// Sets the constraints and local memory size
static void SetConstraints(cltune::Tuner &, const size_t) { }
static void SetLocalMemorySize(cltune::Tuner &, const size_t, const Arguments<T> &) { }
// Sets the kernel's arguments
static void SetArguments(cltune::Tuner &tuner, const Arguments<T> &args,
std::vector<T> &, std::vector<T> &,
std::vector<T> &a_mat, std::vector<T> &b_mat, std::vector<T> &,
std::vector<T> &) {
tuner.AddArgumentScalar(static_cast<int>(args.m));
tuner.AddArgumentScalar(static_cast<int>(args.n));
tuner.AddArgumentScalar(static_cast<int>(args.m));
tuner.AddArgumentScalar(0);
tuner.AddArgumentInput(a_mat);
tuner.AddArgumentScalar(static_cast<int>(args.m));
tuner.AddArgumentScalar(static_cast<int>(args.n));
tuner.AddArgumentScalar(static_cast<int>(args.m));
tuner.AddArgumentScalar(0);
tuner.AddArgumentOutput(b_mat);
tuner.AddArgumentScalar(GetRealArg(args.alpha));
tuner.AddArgumentScalar(0);
}
};
// =================================================================================================
} // 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<clblast::TunePad<half>, half>(argc, argv); break;
case clblast::Precision::kSingle: clblast::Tuner<clblast::TunePad<float>, float>(argc, argv); break;
case clblast::Precision::kDouble: clblast::Tuner<clblast::TunePad<double>, double>(argc, argv); break;
case clblast::Precision::kComplexSingle: clblast::Tuner<clblast::TunePad<float2>, float2>(argc, argv); break;
case clblast::Precision::kComplexDouble: clblast::Tuner<clblast::TunePad<double2>, double2>(argc, argv); break;
}
return 0;
}
// =================================================================================================
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