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/*
* Copyright (c) 2017-2018 ARM Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include <stdio.h>
#include "arm_gemm.hpp"
#include "mergeresults.hpp"
#include "profiler.hpp"
#include "transform.hpp"
namespace arm_gemm
{
// Implementation of the GemmCommon abstract class.
//
// This is implementation is for native GEMM with no transposition.
//
// By default the source data is used in-place, but if type conversion is
// needed we need to allocate working space (CURRENTLY NOT IMPLEMENTED).
template <typename strategy, typename To, typename Tr>
class GemmNative : public GemmCommon<To, Tr>
{
typedef typename strategy::operand_type Toi;
typedef typename strategy::result_type Tri;
const unsigned int _Msize;
const unsigned int _Nsize;
const unsigned int _Ksize;
Tr _beta;
const CPUInfo *const _ci;
unsigned int k_block = 0;
unsigned int n_block = 0;
public:
GemmNative(GemmNative &) = delete;
GemmNative &operator=(GemmNative &) = delete;
GemmNative(const CPUInfo *ci, const unsigned int M, const unsigned int N, const unsigned int K, const Tr beta)
: _Msize(M), _Nsize(N), _Ksize(K), _beta(beta), _ci(ci)
{
/* For now don't do any blocking. TODO: figure out if we should. */
k_block = K;
n_block = N;
}
// Window is number of out_height blocks
unsigned int get_window_size() const override
{
return iceildiv(_Msize, strategy::out_height);
}
// Actually execute the GEMM.
void execute(unsigned int start, unsigned int end, int) override
{
profiler prof;
strategy strat(_ci);
unsigned int M_start = start * strategy::out_height;
unsigned int M_end = std::min(end * strategy::out_height, _Msize);
static_assert(std::is_same<To, Toi>::value, "gemm_native: Operand types must be the same.");
static_assert(std::is_same<Tr, Tri>::value, "gemm_native: Result types must be the same.");
for(unsigned int y0 = M_start; y0 < M_end; y0 += strategy::out_height)
{
unsigned int ymax = std::min(y0 + strategy::out_height, M_end);
prof(PROFILE_KERNEL, (ymax - y0) * _Nsize * _Ksize, [&](void)
{
strat.kernel(this->_Aptr + (y0 * this->_lda), this->_lda, this->_Bptr, this->_ldb, this->_Cptr + (y0 * this->_ldc), this->_ldc, _beta, (ymax - y0), _Nsize, _Ksize);
});
}
}
};
} // namespace arm_gemm
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