aclUpdateDataBuffer

Product	Supported
Ascend 950PR/Ascend 950DT	√
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	√

Updates the memory and size of the data in aclDataBuffer.

After aclDataBuffer is updated, free the aclDataBuffer memory when it is no longer needed to avoid memory leak.

aclError aclUpdateDataBuffer(aclDataBuffer *dataBuffer, void *data, size_t size)

Parameter	Input/Output	Description
dataBuffer	Input	Pointer to data of the aclDataBuffer type. Call aclCreateDataBuffer to create data of the aclDataBuffer type in advance. The memory is managed by the user. Call aclrtMalloc/aclrtFree or aclrtMallocHost/aclrtFreeHost for memory allocation/deallocation.
data	Input	Pointer to the address of the memory that stores data.
size	Input	Memory size, in bytes. If you need to use an empty tensor, set the minimum memory size to 1 byte during memory allocation to ensure normal running of subsequent services.

Parameter

Input/Output

Description

dataBuffer

Input

Pointer to data of the aclDataBuffer type.

Call aclCreateDataBuffer to create data of the aclDataBuffer type in advance.

The memory is managed by the user. Call aclrtMalloc/aclrtFree or aclrtMallocHost/aclrtFreeHost for memory allocation/deallocation.

data

Input

Pointer to the address of the memory that stores data.

size

Input

Memory size, in bytes.

If you need to use an empty tensor, set the minimum memory size to 1 byte during memory allocation to ensure normal running of subsequent services.

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

Parent topic: aclDataBuffer