Function: create_data_buffer

Applicability

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

Description

Creates data of the aclDataBuffer type to describe the memory address and size.

To destroy data of the aclDataBuffer type, call Function: destroy_data_buffer.

Prototype

C Prototype

aclDataBuffer *aclCreateDataBuffer(void *data, size_t size)

Python Function

output = acl.create_data_buffer(data, size)

Parameters

Parameter	Description
data	Int, pointer address of aclDataBuffer data. data can be set to 0, indicating that an empty data type is created. In this case, the value of size must be set to 0. The memory needs to be managed by the user. Call the acl.rt.malloc or acl.rt.free API to apply for or release the memory, or call the acl.rt.malloc_host or acl.rt.free_host API to apply for or release the memory.
size	Int, memory size. 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

Description

data

Int, pointer address of aclDataBuffer data. data can be set to 0, indicating that an empty data type is created. In this case, the value of size must be set to 0.

The memory needs to be managed by the user. Call the acl.rt.malloc or acl.rt.free API to apply for or release the memory, or call the acl.rt.malloc_host or acl.rt.free_host API to apply for or release the memory.

size

Int, memory size. 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.

Return Value

Return Value	Description
output	Int, pointer address of the output aclDataBuffer.

Parent topic: aclDataBuffer