aclrtReleaseMemAddress
Applicability
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Product |
Supported |
|---|---|
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Atlas 350 Accelerator Card |
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√ |
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Description
Frees the virtual memory allocated by the aclrtReserveMemAddress call.
This API needs to be used with other APIs to allocate virtual memory with consecutive addresses and maximize the use of physical memory.
- Call aclrtReserveMemAddress to allocate virtual memory.
- Call aclrtMallocPhysical to allocate physical memory.
- Call aclrtMapMem to map the virtual memory to the physical memory.
- Call specific task APIs to execute tasks.
- Call aclrtUnmapMem to unmap the virtual memory from the physical memory.
- Call aclrtFreePhysical to free the physical memory.
- Call aclrtReleaseMemAddress to free the virtual memory.
Prototype
1
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aclError aclrtReleaseMemAddress(void *virPtr) |
Parameters
|
Parameter |
Input/Output |
Description |
|---|---|---|
|
virPtr |
Input |
Pointer to the address of the virtual memory to be freed. |
Returns
0 on success; else, failure. For details, see aclError.
Restrictions
Atlas 200I/500 A2 inference product and Ascend RC: This API is not supported.
- If the virtual memory is mapped to physical memory, you need to unmap them by calling aclrtUnmapMem before freeing the virtual memory.
Parent topic: Memory Management