mindspore2022/mindspore/ccsrc/parallel/strategy.h

65 lines
1.9 KiB
C++

/**
* Copyright 2019 Huawei Technologies Co., Ltd
*
* 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 MINDSPORE_CCSRC_PARALLEL_STRATEGY_H_
#define MINDSPORE_CCSRC_PARALLEL_STRATEGY_H_
#include <cstdint>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "parallel/status.h"
namespace mindspore {
namespace parallel {
#define MIN_SLICE_NUM 1
using Dimensions = std::vector<int32_t>;
class Strategy;
using StrategyPtr = std::shared_ptr<Strategy>;
class Strategy {
public:
Strategy(int32_t stage, std::vector<Dimensions> inputs) : stage_(stage), inputs_(std::move(inputs)) {}
~Strategy() = default;
size_t GetInputNumber() const { return inputs_.size(); }
std::vector<Dimensions> GetInputDim() const { return inputs_; }
int32_t GetInputStage() const { return stage_; }
void ExpandInputDimFromOneToTwo() {
if (inputs_.size() == 1) {
inputs_.push_back(inputs_[0]);
}
}
void ResetInputs(const std::vector<Dimensions> &input) { inputs_ = input; }
private:
const int32_t stage_;
// The size of Dimensions must equal to inputs_ tensor dimension.
std::vector<Dimensions> inputs_;
};
inline StrategyPtr NewStrategy(const int32_t stage, const std::vector<Dimensions> &inputs) {
return std::make_shared<Strategy>(stage, inputs);
}
} // namespace parallel
} // namespace mindspore
#endif // MINDSPORE_CCSRC_PARALLEL_STRATEGY_H_