1// Copyright 2016 The Gemmlowp Authors. All Rights Reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15#ifndef GEMMLOWP_META_MULTI_THREAD_COMMON_H_ 16#define GEMMLOWP_META_MULTI_THREAD_COMMON_H_ 17 18#include "../internal/multi_thread_gemm.h" 19 20namespace gemmlowp { 21namespace meta { 22 23inline int ResolveMaxThreads(int max_threads) { 24 if (max_threads == 0) { 25 static const int hardware_threads_count = 26 static_cast<int>(sysconf(_SC_NPROCESSORS_CONF)); 27 return hardware_threads_count; 28 } 29 return max_threads; 30} 31 32template <typename WorkersPool> 33class SimpleContext { 34 public: 35 SimpleContext(int max_num_threads, WorkersPool* pool) 36 : max_num_threads_(max_num_threads), pool_(pool) {} 37 38 WorkersPool* workers_pool() { return pool_; } 39 40 int max_num_threads() { return max_num_threads_; } 41 42 private: 43 int max_num_threads_; 44 WorkersPool* pool_; 45}; 46 47} // namespace meta 48} // namespace gemmlowp 49 50#endif // GEMMLOWP_META_MULTI_THREAD_COMMON_H_ 51