aclrtReduceAsync

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	√
Atlas inference product	√
Atlas training product	√

Performs a Reduce operation, including SUM, MIN, and MAX. This API is asynchronous.

aclError aclrtReduceAsync(void *dst, const void *src, uint64_t count, aclrtReduceKind kind, aclDataType type, aclrtStream stream, void *reserve)

Parameter	Input/Output	Description
dst	Input	Pointer to the destination memory address.
src	Input	Pointer to the source memory address.
count	Input	Size of the source memory, in bytes.
kind	Input	Operation type. For details about the type definition, see aclrtReduceKind.
type	Input	Data type. For details about the type definition, see aclDataType. The Atlas 350 Accelerator Card supports the following data types: int8, int16, int32, uint32, fp16, fp32, and bf16. The Atlas A3 training product/Atlas A3 inference product supports the following data types: int8, int16, int32, fp16, fp32, and bf16. The Atlas A2 training product/Atlas A2 inference product supports the following data types: int8, int16, int32, fp16, fp32, and bf16. The Atlas 200I/500 A2 inference product supports the following data types: int8, int16, int32, fp16, and fp32. The Atlas inference product supports the following data types: fp32, fp16, and int16. The Atlas training product supports only the fp32 data type.
stream	Input	Stream for executing the Reduce operation task. For details about the type definition, see aclrtStream.
reserve	Input	Reserved parameter. Currently, the value is fixed to NULL.

0 on success; otherwise, failure. For details, see aclError.

dst and src must be on the same device as stream.

Parent topic: Execution Control