| /* |
| * Copyright (c) 2017-2019 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 "transform.hpp" |
| |
| #ifdef CYCLE_PROFILING |
| #include "profiler.hpp" |
| #endif |
| |
| 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; |
| |
| const unsigned int _nbatches; |
| const unsigned int _nmultis; |
| |
| Tr _beta; |
| |
| const CPUInfo * const _ci; |
| |
| unsigned int k_block=0; |
| unsigned int n_block=0; |
| |
| unsigned int window_per_batch() const { |
| return iceildiv(_Msize, strategy::out_height()); |
| } |
| |
| unsigned int window_per_multi() const { |
| return window_per_batch() * _nbatches; |
| } |
| |
| public: |
| GemmNative(GemmNative &) = delete; |
| GemmNative & operator= (GemmNative &) = delete; |
| |
| GemmNative(const GemmArgs<Tr> &args) |
| : _Msize(args._Msize), _Nsize(args._Nsize), _Ksize(args._Ksize), _nbatches(args._nbatches), _nmultis(args._nmulti), _beta(args._beta), _ci(args._ci) { |
| /* For now don't do any blocking. TODO: figure out if we should. */ |
| k_block = _Ksize; |
| n_block = _Nsize; |
| } |
| |
| // Window is amount per multi multiplied by total number of multis. |
| unsigned int get_window_size() const override { |
| return window_per_multi() * _nmultis; |
| } |
| |
| // Actually execute the GEMM. |
| void execute(unsigned int start, unsigned int end, int) override { |
| #ifdef CYCLE_PROFILING |
| profiler prof; |
| #endif |
| strategy strat(_ci); |
| |
| 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."); |
| |
| /* Compute starting point based on 'start' */ |
| unsigned int multi = start / window_per_multi(); |
| unsigned int multi_pos = start % window_per_multi(); |
| |
| unsigned int batch = multi_pos / window_per_batch(); |
| unsigned int batch_pos = multi_pos % window_per_batch(); |
| |
| unsigned int y0 = batch_pos * strategy::out_height(); |
| |
| for (unsigned int l=end-start; l>0; ) { |
| // Do work from here to the end of the current batch/multi |
| const unsigned int ymax = std::min(y0 + (l * strategy::out_height()), _Msize); |
| |
| // Work out how many units this is and subtract from loop counter. |
| l -= ((ymax - y0) + (strategy::out_height() - 1)) / strategy::out_height(); |
| |
| #ifdef CYCLE_PROFILING |
| auto p = prof.ScopedProfiler(PROFILE_KERNEL, (ymax-y0) * _Nsize * _Ksize); |
| #endif |
| |
| strat.kernel(this->_Aptr + (multi * this->_A_multi_stride) + (batch * this->_A_batch_stride) + (y0 * this->_lda), this->_lda, |
| this->_Bptr + (multi * this->_B_multi_stride), this->_ldb, |
| this->_Cptr + (multi * this->_C_multi_stride) + (batch * this->_C_batch_stride) + (y0 * this->_ldc), this->_ldc, |
| _beta, (ymax-y0), _Nsize, _Ksize); |
| |
| /* Advance to next item */ |
| y0 = ymax; |
| |
| /* Check for batch/multi overflow */ |
| if (y0 >= _Msize) { |
| y0=0; |
| batch++; |
| if (batch == _nbatches) { |
| batch=0; |
| multi++; |
| } |
| } |
| } |
| } |
| }; |
| |
| } // namespace arm_gemm |