aclrtMemFlush

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	√

Flushes cache data to the DDR and invalidates the cache.

In this version, you do not need to care about the cache coherence between the CPU and NPU and therefore this API is unused in this version.

aclError aclrtMemFlush(void *devPtr, size_t size)

Parameter	Input/Output	Description
devPtr	Input	Pointer to the start address of the DDR memory to be flushed.
size	Input	Size of the DDR memory to be flushed, in bytes. The size cannot be 0.

Parameter

Input/Output

Description

devPtr

Input

Pointer to the start address of the DDR memory to be flushed.

size

Input

Size of the DDR memory to be flushed, in bytes.

The size cannot be 0.

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

Parent topic: Memory Management