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79 lines
2.2 KiB
79 lines
2.2 KiB
/* Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#include <deque>
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#include <memory>
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#include <unordered_map>
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#include <unordered_set>
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#include <utility>
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#include "paddle/fluid/framework/generator.h"
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namespace paddle {
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namespace framework {
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std::shared_ptr<Generator> Generator::gen_instance_ = NULL;
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GeneratorState* Generator::GetState() {
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std::lock_guard<std::mutex> lock(this->mutex);
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return this->state_.get();
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}
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void Generator::SetState(GeneratorState* state_in) {
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std::lock_guard<std::mutex> lock(this->mutex);
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*this->state_ = *state_in;
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}
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uint64_t Generator::GetCurrentSeed() {
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std::lock_guard<std::mutex> lock(this->mutex);
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return this->state_->current_seed;
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}
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uint64_t Generator::Seed() {
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std::lock_guard<std::mutex> lock(this->mutex);
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uint64_t seed;
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std::random_device de;
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seed = ((((uint64_t)de()) << 32) + de()) & 0x1FFFFFFFFFFFFF;
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this->state_->current_seed = seed;
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std::seed_seq seq({seed});
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this->state_->cpu_engine.seed(seq);
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return this->state_->current_seed;
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}
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void Generator::SetCurrentSeed(uint64_t seed) {
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std::lock_guard<std::mutex> lock(this->mutex);
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this->state_->current_seed = uint64_t(seed);
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std::seed_seq seq({seed});
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this->state_->cpu_engine.seed(seq);
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}
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std::mt19937_64& Generator::GetCPUEngine() {
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std::lock_guard<std::mutex> lock(this->mutex);
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return this->state_->cpu_engine;
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}
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void Generator::SetCPUEngine(std::mt19937_64 engine) {
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std::lock_guard<std::mutex> lock(this->mutex);
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this->state_->cpu_engine = std::mt19937_64(engine);
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}
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uint64_t Generator::Random64() {
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std::lock_guard<std::mutex> lock(this->mutex);
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return this->state_->cpu_engine();
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}
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} // namespace framework
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} // namespace paddle
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