aclrtHostUnregister

Product	Supported
Ascend 950PR	√
Ascend 950DT	☓
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	√

Unregisters host memory.

This API is used in pair with aclrtHostRegister.

This is an encapsulated API that applies only to C++ programs. It internally calls the C API aclrtHostUnregister.

template <typename T>
aclError aclrtHostUnregister(T *ptr)

Parameter	Input/Output	Description
ptr	Input	Memory address on the host.

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

Parent topic: C++ Extension APIs