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// Copyright 2016 The Gemmlowp Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef GEMMLOWP_META_MULTI_THREAD_COMMON_H_
#define GEMMLOWP_META_MULTI_THREAD_COMMON_H_
#include "../internal/multi_thread_gemm.h"
namespace gemmlowp {
namespace meta {
inline int ResolveMaxThreads(int max_threads) {
if (max_threads == 0) {
#ifdef _WIN32
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
return sysinfo.dwNumberOfProcessors;
#else
static const int hardware_threads_count =
static_cast<int>(sysconf(_SC_NPROCESSORS_CONF));
return hardware_threads_count;
#endif
}
return max_threads;
}
template <typename WorkersPool>
class SimpleContext {
public:
SimpleContext(int max_num_threads, WorkersPool* pool)
: max_num_threads_(max_num_threads), pool_(pool) {}
WorkersPool* workers_pool() { return pool_; }
int max_num_threads() { return max_num_threads_; }
private:
int max_num_threads_;
WorkersPool* pool_;
};
} // namespace meta
} // namespace gemmlowp
#endif // GEMMLOWP_META_MULTI_THREAD_COMMON_H_
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