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stream_active_task.cc 2.2 kB

5 years ago
5 years ago
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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_runtime/task/stream_active_task.h"
  17. #include "ge_runtime/task/task_factory.h"
  18. namespace ge {
  19. namespace model_runner {
  20. StreamActiveTask::StreamActiveTask(const ModelContext &model_context,
  21. const std::shared_ptr<StreamActiveTaskInfo> &task_info)
  22. : TaskRepeater<StreamActiveTaskInfo>(model_context, task_info),
  23. task_info_(task_info),
  24. stream_(nullptr),
  25. active_stream_(nullptr) {
  26. if (task_info_ == nullptr) {
  27. GELOGW("task_info_ is null!");
  28. }
  29. auto stream_list = model_context.stream_list();
  30. uint32_t stream_id = task_info->stream_id();
  31. uint32_t active_stream_id = task_info->active_stream_id();
  32. GELOGI("Stream list size:%zu, stream id:%u, active stream id:%u", stream_list.size(), stream_id, active_stream_id);
  33. if (stream_id >= stream_list.size() || active_stream_id >= stream_list.size()) {
  34. GELOGW("Stream id invalid");
  35. }
  36. stream_ = stream_list[stream_id];
  37. active_stream_ = stream_list[active_stream_id];
  38. }
  39. StreamActiveTask::~StreamActiveTask() {}
  40. bool StreamActiveTask::Distribute() {
  41. GELOGI("Distribute start");
  42. GELOGI("Stream %u active %u.", task_info_->stream_id(), task_info_->active_stream_id());
  43. rtError_t rt_ret = rtStreamActive(active_stream_, stream_);
  44. if (rt_ret != RT_ERROR_NONE) {
  45. GELOGE(RT_FAILED, "Call rt api failed, ret: 0x%X", rt_ret);
  46. return false;
  47. }
  48. GELOGI("DistributeTask end");
  49. return true;
  50. }
  51. REGISTER_TASK(TaskInfoType::STREAM_ACTIVE, StreamActiveTask, StreamActiveTaskInfo);
  52. } // namespace model_runner
  53. } // 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