1 /** 2 * Copyright 2020 Huawei Technologies Co., Ltd 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef MINDSPORE_CCSRC_PRE_ACTIVATE_ASCEND_ENHANCER_SPLIT_INPUTS_FOR_REDUCE_SCATTER_H_ 17 #define MINDSPORE_CCSRC_PRE_ACTIVATE_ASCEND_ENHANCER_SPLIT_INPUTS_FOR_REDUCE_SCATTER_H_ 18 19 #include <memory> 20 #include <vector> 21 #include "backend/optimizer/common/optimizer.h" 22 #include "backend/optimizer/ascend/ascend_helper.h" 23 24 namespace mindspore { 25 namespace opt { 26 class SplitInputsForReduceScatter : public PatternProcessPass { 27 public: 28 explicit SplitInputsForReduceScatter(bool multigraph = true) 29 : PatternProcessPass("split_inputs_for_reduce_scatter", multigraph), 30 kernel_select_(std::make_shared<KernelSelect>()) {} 31 ~SplitInputsForReduceScatter() override = default; 32 const BaseRef DefinePattern() const override; 33 const AnfNodePtr Process(const FuncGraphPtr &, const AnfNodePtr &, const EquivPtr &) const override; 34 35 private: 36 AnfNodePtr RearrangeInputsForReduceScatter(const FuncGraphPtr &func_graph, const AnfNodePtr &node, 37 const std::vector<AnfNodePtr> &inputs, int64_t rank_size) const; 38 std::vector<AnfNodePtr> InsertSplitForInput(const FuncGraphPtr &func_graph, const CNodePtr &node, 39 int64_t rank_size) const; 40 KernelSelectPtr kernel_select_; 41 }; 42 } // namespace opt 43 } // namespace mindspore 44 #endif // MINDSPORE_CCSRC_PRE_ACTIVATE_ASCEND_ENHANCER_SPLIT_INPUTS_FOR_REDUCE_SCATTER_H_ 45