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	x

Deregisters the user-provided Allocator and its callback function, so that the Allocator cannot be used.

C Prototype

        
             aclError aclrtAllocatorUnregister(aclrtStream stream)

Python Function

        
             ret = acl.rt.allocator_unregister(stream)

Parameter	Description
stream	Int, stream corresponding to the Allocator.

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

The Atlas 200/500 A2 Inference Product does not support this API.
Before destroying an Allocator, call this API to deregister the Allocator.
If the stream to be deregistered does not exist or this API is called for multiple times to deregister the stream, no operation will be performed and a success message is returned.

Function: allocator_unregister