aclrtHostGetDevicePointer
Applicable Products
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Function
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.
Prototype
1 2 | template <typename T> aclError aclrtHostGetDevicePointer(T *pHost, T **pDevice, uint32_t flag) |
Parameters
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. |
Returns
0 on success; otherwise, failure. For details, see aclError.
Parent topic: C++ Extension APIs