Function: free_host

Applicability

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

Description

Frees host memory.

Prototype

C Prototype
1
aclError aclrtFreeHost(void *hostPtr)
Python Function
1
ret= acl.rt.free_host(host_ptr)

Parameters

Parameter	Description
host_ptr	Int, pointer address of the memory to be freed.

Return Value

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

Restrictions

This API immediately releases the input memory. No implicit device synchronization or stream synchronization is performed within the function. Ensure that the memory pointer address is not accessed after this API is called.
acl.rt.free_host can only free the memory allocated by acl.rt.malloc_host.

Parent topic: Memory Management