aclrtMemsetAsync

Applicability

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	√

Description

Initializes memory to a specified value. This API is asynchronous.

The system determines whether the memory to be initialized is on the host or device based on the address. If the host memory is not allocated by calling an acl API (for example, aclrtMallocHost), undefined behavior will occur.

Prototype

aclError aclrtMemsetAsync(void *devPtr, size_t maxCount, int32_t value, size_t count, aclrtStream stream)

Parameters

Parameter	Input/Output	Description
devPtr	Input	Pointer to the memory start address.
maxCount	Input	Memory size in bytes.
value	Input	Value to set.
count	Input	Memory size to set, in bytes.
stream	Input	Stream for executing the memory initialization task. For details about the type definition, see aclrtStream.

Returns

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

Parent topic: Memory Management