Function: memcpy2d

Product	Supported (√/x)
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas training products	√
Atlas inference products	√
Atlas 200I/500 A2 inference products	√

Implements synchronous memory copy, which is mainly used for matrix data replication.

The Atlas inference accelerator modules does not support these APIs.

C Prototype

aclError aclrtMemcpy2d(void *dst, size_t dpitch, const void *src, size_t spitch, size_t width, size_t height, aclrtMemcpyKind kind)

Python Function

ret = acl.rt.memcpy2d(dst, dpitch, src, spitch, width, height, kind)

Parameter	Description
dst	Int, pointer address of the destination memory address.
dpitch	Int, address distance between two adjacent columns of vectors in the destination memory.
src	Int, pointer address of the source memory address.
spitch	Int, address distance between two adjacent columns of vectors in the source memory.
width	Int, matrix width to be copied.
height	Int, matrix height to be copied.
kind	Int, memory copy type.

Return Value	Description
ret	Int, error code: 0 on success; else, failure.

Currently, only memory copy of the ACL_MEMCPY_HOST_TO_DEVICE and ACL_MEMCPY_DEVICE_TO_HOST types is supported.
For the Atlas 200I/500 A2 inference products: This API is not supported in Ascend RC form.

Parent topic: Memory Management