1 /** 2 * Copyright 2021 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_MINDDATA_DATASET_UTIL_NUMA_INTERFACE_H_ 17 #define MINDSPORE_CCSRC_MINDDATA_DATASET_UTIL_NUMA_INTERFACE_H_ 18 19 #include "minddata/dataset/util/log_adapter.h" 20 #include "minddata/dataset/util/status.h" 21 22 namespace mindspore { 23 namespace dataset { 24 struct bitmask { 25 uint64_t size; 26 uint64_t *maskp; 27 }; 28 29 // Now we separate the link from _c_dataengine with numa, 30 // and we use dlopen("libnuma") instead. This function will 31 // return a handle which you can do NumaBind and ReleaseLibrary. 32 void *GetNumaAdapterHandle(); 33 34 // Totally this function will do: 35 // 1. Get function pointer of numa api 36 // 2. Do numa_bind 37 Status NumaBind(void *handle, const int32_t &rank_id); 38 39 // Release the numa handle for avoid memory leak, we should 40 // not allow handle is nullptr before we use it. 41 void ReleaseLibrary(void *handle); 42 } // namespace dataset 43 } // namespace mindspore 44 45 #endif // MINDSPORE_CCSRC_MINDDATA_DATASET_UTIL_NUMA_INTERFACE_H_ 46