1 files changed, 101 insertions, 0 deletions
diff --git a/src/tuning/kernels/copy_pad.hpp b/src/tuning/kernels/copy_pad.hpp
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+++ b/src/tuning/kernels/copy_pad.hpp
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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 pad 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 = "pad";
+  settings.kernel_name = "CopyPadMatrix";
+  settings.sources =
+#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;
+
+  // Inputs and outputs IDs (X:0, Y:1, A:2, B:3, C:4, temp:5)
+  settings.inputs = {2, 3};
+  settings.outputs = {3};
+
+  // 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
+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, static_cast<int>(args.m));
+  kernel.SetArgument(3, 0);
+  kernel.SetArgument(4, buffers[2]()); // 2 == A matrix
+  kernel.SetArgument(5, static_cast<int>(args.m));
+  kernel.SetArgument(6, static_cast<int>(args.n));
+  kernel.SetArgument(7, static_cast<int>(args.m));
+  kernel.SetArgument(8, 0);
+  kernel.SetArgument(9, buffers[3]()); // 3 == B matrix
+  kernel.SetArgument(10, GetRealArg(args.alpha));
+  kernel.SetArgument(11, 0);
+}
+
+// =================================================================================================
+} // namespace clblast