--- title: 简介 description: "用于执行算子的上下文环境。" url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/API/ascendgraphapi/atlasgeapi_07_0689.html sourcePath: /source/zh/canncommercial/900/API/ascendgraphapi/atlasgeapi_07_0689.html indexId: 9c4ab33b50bbccce540dc9ff15f30c4d61d406bc5c47ce6993475892143492f072 --- # 简介 用于执行算子的上下文环境。 为算子在设备上运行时提供输入输出管理、内存分配、流控制等运行时支持。 #### 需要包含的头文件 ``` #include ``` #### Public成员函数 ``` rtStream GetStream() const const Tensor *GetInputTensor(size_t index) const const Tensor *GetRequiredInputTensor(size_t ir_index) const const Tensor *GetOptionalInputTensor(size_t ir_index) const const Tensor *GetDynamicInputTensor(size_t ir_index, size_t relative_index) const Tensor *MallocOutputTensor(size_t index, const StorageShape &shape, const StorageFormat &format, ge::DataType dtype, size_t tensor_size) Tensor *MakeOutputRefInput(size_t output_index, size_t input_index) const void *MallocWorkSpace(size_t size) const Tensor *GetOutputTensor(size_t index) const ```