1 /** 2 * Copyright 2019 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 17 #ifndef MINDSPORE_CCSRC_FRONTEND_PARALLEL_DEVICE_MATRIX_H_ 18 #define MINDSPORE_CCSRC_FRONTEND_PARALLEL_DEVICE_MATRIX_H_ 19 20 #include <cstdint> 21 #include <string> 22 #include <vector> 23 24 #include "frontend/parallel/status.h" 25 #include "utils/convert_utils.h" 26 27 namespace mindspore { 28 namespace parallel { 29 using RankList = std::vector<int64_t>; 30 using Shape = std::vector<int64_t>; 31 32 class DeviceMatrix { 33 public: 34 DeviceMatrix(int64_t rank, RankList devices, Shape dev_shape); 35 DeviceMatrix() = default; 36 ~DeviceMatrix() = default; group_list()37 std::vector<RankList> group_list() const { return group_list_; } 38 Status CreateGroupList(); 39 Status GetDevicesByTensorMap(const Shape &tensor_map, RankList *rank_list); 40 Status GetDevicesAlongDim(const uint64_t &dim, RankList *devices); 41 42 private: 43 int64_t rank_ = -1; 44 RankList dev_list_; 45 // From low dim to high dim. eg: [D0 D1 D2 D3] 46 Shape dev_shape_; 47 std::vector<RankList> group_list_; 48 }; 49 50 std::string ShapeToString(const Shape &shape); 51 std::string ListToString(const RankList &list); 52 } // namespace parallel 53 } // namespace mindspore 54 55 #endif // MINDSPORE_CCSRC_FRONTEND_PARALLEL_DEVICE_MATRIX_H_ 56