Product	Supported (√/x)
Ascend 950PR/Ascend 950DT	√
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas training products	√
Atlas inference products	√
Atlas 200I/500 A2 inference products	√

Frees the virtual memory allocated by the acl.rt.reserve_mem_address call.

This API needs to work with other APIs to allocate virtual memory with consecutive addresses and maximize the use of physical memory.

C Prototype

aclError aclrtReleaseMemAddress(void *virPtr)

Python Function

ret = acl.rt.release_mem_address(vir_ptr)

Parameter	Description
virPtr	Int, pointing to the address of the virtual address space to be freed.

Return Value	Description
ret	Int, error code. 0 on success; else, failure.

This API is not supported in the Ascend RC form.

If the virtual memory is mapped to physical memory, you need to unmap them by calling acl.rt.unmap_mem before freeing the virtual memory.

Function: release_mem_address