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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 Xsyrk routine. The precision is implemented using a template argument.
// The implementation is based on the regular Xgemm routine and kernel, but with two main changes:
// 1) The final unpad(transpose) kernel updates only the upper/lower triangular part.
// 2) The main Xgemm kernel masks workgroups not contributing to usefull data. This is only for
// performance reasons, as the actual masking is done later (see the first point).
//
// =================================================================================================
#ifndef CLBLAST_ROUTINES_XSYRK_H_
#define CLBLAST_ROUTINES_XSYRK_H_
#include "internal/routine.h"
namespace clblast {
// =================================================================================================
// See comment at top of file for a description of the class
template <typename T>
class Xsyrk: public Routine<T> {
public:
// Members and methods from the base class
using Routine<T>::db_;
using Routine<T>::source_string_;
using Routine<T>::queue_;
using Routine<T>::event_;
using Routine<T>::context_;
using Routine<T>::GetProgramFromCache;
using Routine<T>::PadCopyTransposeMatrix;
using Routine<T>::RunKernel;
using Routine<T>::ErrorIn;
// Constructor
Xsyrk(Queue &queue, EventPointer event, const std::string &name = "SYRK");
// Templated-precision implementation of the routine
StatusCode DoSyrk(const Layout layout, const Triangle triangle, const Transpose a_transpose,
const size_t n, const size_t k,
const T alpha,
const Buffer<T> &a_buffer, const size_t a_offset, const size_t a_ld,
const T beta,
const Buffer<T> &c_buffer, const size_t c_offset, const size_t c_ld);
private:
// Static variable to get the precision
const static Precision precision_;
};
// =================================================================================================
} // namespace clblast
// CLBLAST_ROUTINES_XSYRK_H_
#endif
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