aclrtMemSetAccess

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product / Atlas A3 inference product	√
Atlas A2 training product / Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	√
Atlas inference product	√
Atlas training product	√

Sets the memory access permission.

      
           aclError aclrtMemSetAccess(void* virPtr, size_t size, aclrtMemAccessDesc* desc, size_t count)

Parameter	Input/Output	Description
virPtr	Input	Start address of the virtual memory. The value must be the same as the aclrtMapMem API's virPtr address.
size	Input	Length of the virtual memory. The value must be the same as the aclrtMapMem API's size.
desc	Input	Memory access configuration, including access protection flag and memory location. For the type definition, see aclrtMemAccessDesc.
count	Input	Length of the desc array.

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

For the API call example, see Interprocess communication.

Parent topic: Memory Management