FetchDataFlowGraph (Fetching Output Data by Index)

Product	Supported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	x
Atlas inference products	x
Atlas training products	x

Fetches output data of a graph by index.

Status FetchDataFlowGraph(uint32_t graph_id, const std::vector<uint32_t> &indexes, std::vector<Tensor> &outputs, DataFlowInfo &info, int32_t timeout)

Parameter	Input/Output	Description
graph_id	Input	ID of the graph to be executed.
indexes	Input	Index of the output data, which must be unique. The value range is [0, N – 1], where N indicates the number of output data records. One or more values are supported. For example, {0,2} indicates that the first and third outputs are fetched.
outputs	Output	Output tensors of the computational graph. You do not need to allocate the memory manually. After the execution is complete, GE allocates and initializes the memory.
info	Output	Output data flow flag. For details, see DataFlowInfo Data Types.
timeout	Input	Timeout period for fetching data, in milliseconds. The value -1 indicates that no timeout ever occurs.

Function execution result. The following table lists the results.

Parameter	Type	Description
-	Status	SUCCESS: successful data fetch. FAILED: failed data fetch. For details about error codes of ACL APIs, see aclError. For details about other error codes, see UDF Error Codes.

None

Parent topic: Graph Running APIs