aclrtHostGetDevicePointer

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	☓

Obtains the device memory address registered and mapped using aclrtHostRegister.

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

template <typename T>
aclError aclrtHostGetDevicePointer(T *pHost, T **pDevice, uint32_t flag)

Parameter	Input/Output	Description
pHost	Input	Host memory address registered and mapped by aclrtHostRegister.
pDevice	Output	Device memory address mapped from the host memory.
flag	Input	Reserved. The value is fixed at 0.

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

Parent topic: C++ Extension APIs