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label_goto_task.cc 3.7 kB

4 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/label_goto_task.h"
  17. #include "ge_runtime/task/task_factory.h"
  18. #include "framework/common/util.h"
  19. namespace ge {
  20. namespace model_runner {
  21. LabelGotoTask::LabelGotoTask(const ModelContext &model_context, const std::shared_ptr<LabelGotoTaskInfo> &task_info)
  22. : TaskRepeater<LabelGotoTaskInfo>(model_context, task_info), task_info_(task_info) {
  23. if (task_info_ == nullptr) {
  24. GELOGW("task_info_ is null!");
  25. return;
  26. }
  27. auto stream_list = model_context.stream_list();
  28. auto label_list = model_context.label_list();
  29. uint32_t stream_id = task_info->stream_id();
  30. uint32_t label_id = task_info->label_id();
  31. GELOGI("Stream list size:%zu, stream id:%u.", stream_list.size(), stream_id);
  32. GELOGI("Label list size:%zu, label id:%u.", label_list.size(), label_id);
  33. if (stream_id >= stream_list.size() || label_id >= label_list.size()) {
  34. GELOGW("Stream/Label id invalid.");
  35. return;
  36. }
  37. stream_ = stream_list[stream_id];
  38. label_ = label_list[label_id];
  39. }
  40. LabelGotoTask::~LabelGotoTask() {
  41. GE_FREE_RT_LOG(label_info_);
  42. GE_FREE_RT_LOG(index_value_);
  43. }
  44. bool LabelGotoTask::Distribute() {
  45. GELOGI("LabelGotoTask Distribute start.");
  46. if (!CheckParamValid()) {
  47. return false;
  48. }
  49. const std::vector<void *> label_list = { label_ };
  50. rtError_t rt_ret = rtMalloc(&index_value_, sizeof(uint64_t), RT_MEMORY_HBM);
  51. if (rt_ret != RT_ERROR_NONE) {
  52. GELOGE(RT_FAILED, "Call rt api failed, ret: %#x", rt_ret);
  53. return false;
  54. }
  55. uint64_t branch_index = 0;
  56. rt_ret = rtMemcpy(index_value_, sizeof(uint64_t), &branch_index, sizeof(uint64_t), RT_MEMCPY_HOST_TO_DEVICE);
  57. if (rt_ret != RT_ERROR_NONE) {
  58. GELOGE(RT_FAILED, "Call rt api failed, ret: %#x", rt_ret);
  59. return false;
  60. }
  61. uint32_t label_info_size = sizeof(rtLabelDevInfo) * label_list.size();
  62. rt_ret = rtMalloc(&label_info_, label_info_size, RT_MEMORY_HBM);
  63. if (rt_ret != RT_ERROR_NONE) {
  64. GELOGE(RT_FAILED, "Call rt api failed, ret: %#x", rt_ret);
  65. return false;
  66. }
  67. rt_ret = rtLabelListCpy(reinterpret_cast<void**>(label_list.data()), label_list.size(), label_info_, label_info_size);
  68. if (rt_ret != RT_ERROR_NONE) {
  69. GELOGE(RT_FAILED, "Call rt api failed, ret: %#x", rt_ret);
  70. return false;
  71. }
  72. rt_ret = rtLabelSwitchByIndex(index_value_, label_list.size(), label_info_, stream_);
  73. if (rt_ret != RT_ERROR_NONE) {
  74. GELOGE(RT_FAILED, "Call rt api failed, ret: %#x", rt_ret);
  75. return false;
  76. }
  77. GELOGI("DistributeTask end.");
  78. return true;
  79. }
  80. bool LabelGotoTask::CheckParamValid() {
  81. if (stream_ == nullptr) {
  82. GELOGE(PARAM_INVALID, "stream is null!");
  83. return false;
  84. }
  85. if (label_ == nullptr) {
  86. GELOGE(PARAM_INVALID, "label is null!");
  87. return false;
  88. }
  89. if (label_info_ != nullptr) {
  90. GELOGE(PARAM_INVALID, "label_info_ has dirty data.");
  91. return false;
  92. }
  93. if (index_value_ != nullptr) {
  94. GELOGE(PARAM_INVALID, "index_value_ has dirty data.");
  95. return false;
  96. }
  97. return true;
  98. }
  99. REGISTER_TASK(TaskInfoType::LABEL_GOTO, LabelGotoTask, LabelGotoTaskInfo);
  100. } // namespace model_runner
  101. } // 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