aclrtHostGetDevicePointer
Applicability
Supported |
|
|---|---|
Atlas A3 Training Series Product |
√ |
Atlas A2 Training Series Product/Atlas 800I A2 Inference Product |
√ |
Atlas 200/500 A2 Inference Product |
☓ |
Atlas Inference Series Product |
☓ |
Atlas Training Series Product |
√ |
Description
Obtains the device memory address registered and mapped by the aclrtHostRegisterV2 API. This address cannot be used for memory operations, such as memory copy.
Prototype
aclError aclrtHostGetDevicePointer(void *pHost, void **pDevice, uint32_t flag)
Parameters
Parameter |
Input/Output |
Description |
|---|---|---|
pHost |
Input |
Host memory address registered and mapped by the aclrtHostRegisterV2 API. |
pDevice |
Output |
Device memory address mapped from the host memory. |
flag |
Input |
Reserved. The value is fixed at 0. |
Returns
0 on success; else, failure. For details, see aclError.
Parent topic: Memory Management