aclrtMemGetAllocationGranularity

Applicability

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

Description

Queries the memory allocation granularity.

The system internally calculates the minimum granularity or recommended granularity based on the memory attribute information specified by the user and returns the granularity using the granularity parameter. This granularity can be used as a multiple of alignment, address size, or address mapping.

Prototype

aclError aclrtMemGetAllocationGranularity(aclrtPhysicalMemProp *prop, aclrtMemGranularityOptions option, size_t *granularity)

Parameters

Parameter	Input/Output	Description
prop	Input	Physical memory attribute information.
option	Input	Minimum granularity or recommended granularity.
granularity	Output	Memory allocation granularity, in bytes.

Returns

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

Restrictions

This API is not supported in the Ascend RC form of the Atlas 200I/500 A2 inference products.

Parent topic: Memory Management