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ge_context.cc 2.8 kB

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  1. /**
  2. * Copyright 2019-2020 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. #include "./ge_context.h"
  17. #include "./ge_global_options.h"
  18. #include "./ge_local_context.h"
  19. #include "framework/common/debug/ge_log.h"
  20. namespace ge {
  21. namespace {
  22. const int64_t kMinTrainingTraceJobId = 256;
  23. const int kDecimal = 10;
  24. } // namespace
  25. GEContext &GetContext() {
  26. static GEContext ge_context{};
  27. return ge_context;
  28. }
  29. graphStatus GEContext::GetOption(const std::string &key, std::string &option) {
  30. return GetThreadLocalContext().GetOption(key, option);
  31. }
  32. std::map<std::string, std::string> &GetMutableGlobalOptions() {
  33. static std::map<std::string, std::string> global_options{};
  34. return global_options;
  35. }
  36. void GEContext::Init() {
  37. string session_id;
  38. (void)GetOption("ge.exec.sessionId", session_id);
  39. try {
  40. session_id_ = static_cast<uint64_t>(std::stoi(session_id.c_str()));
  41. } catch (std::invalid_argument &) {
  42. GELOGW("%s transform to int failed.", session_id.c_str());
  43. } catch (std::out_of_range &) {
  44. GELOGW("%s transform to int failed.", session_id.c_str());
  45. }
  46. string device_id;
  47. (void)GetOption("ge.exec.deviceId", device_id);
  48. try {
  49. device_id_ = static_cast<uint32_t>(std::stoi(device_id.c_str()));
  50. } catch (std::invalid_argument &) {
  51. GELOGW("%s transform to int failed.", device_id.c_str());
  52. } catch (std::out_of_range &) {
  53. GELOGW("%s transform to int failed.", device_id.c_str());
  54. }
  55. string job_id;
  56. (void)GetOption("ge.exec.jobId", job_id);
  57. std::string s_job_id = "";
  58. for (auto c : job_id) {
  59. if (c >= '0' && c <= '9') {
  60. s_job_id += c;
  61. }
  62. }
  63. if (s_job_id == "") {
  64. trace_id_ = kMinTrainingTraceJobId;
  65. return;
  66. }
  67. int64_t d_job_id = std::strtoll(s_job_id.c_str(), nullptr, kDecimal);
  68. if (d_job_id < kMinTrainingTraceJobId) {
  69. trace_id_ = d_job_id + kMinTrainingTraceJobId;
  70. } else {
  71. trace_id_ = d_job_id;
  72. }
  73. }
  74. uint64_t GEContext::SessionId() { return session_id_; }
  75. uint32_t GEContext::DeviceId() { return device_id_; }
  76. uint64_t GEContext::TraceId() { return trace_id_; }
  77. void GEContext::SetSessionId(uint64_t session_id) { session_id_ = session_id; }
  78. void GEContext::SetCtxDeviceId(uint32_t device_id) { device_id_ = device_id; }
  79. } // namespace ge

图引擎模块(GE)是MindSpore的一个子模块,其代码由C++实现,位于前端模块ME和底层硬件之间,起到承接作用。图引擎模块以ME下发的图作为输入,然后进行一系列的深度图优化操作,最后输出一张可以在底层硬件上高效运行的图。GE针对昇腾AI处理器的硬件结构特点,做了特定的优化工作,以此来充分发挥出昇腾AI处理器的强大算力。在进行模型训练/推理时,GE会被自动调用而用户并不感知。GE主要由GE API和GE Core两部分组成,详细的架构图如下所示