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 20 namespace gemmlowp { 21 namespace meta { 22 ResolveMaxThreads(int max_threads)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 32 template <typename WorkersPool> 33 class SimpleContext { 34 public: SimpleContext(int max_num_threads,WorkersPool * pool)35 SimpleContext(int max_num_threads, WorkersPool* pool) 36 : max_num_threads_(max_num_threads), pool_(pool) {} 37 workers_pool()38 WorkersPool* workers_pool() { return pool_; } 39 max_num_threads()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