Function: kernel_args_get_place_holder_buffer

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	√

Obtains the memory address to which the param_handle placeholder points based on the memory size specified by the user.

C Prototype

aclError aclrtKernelArgsGetPlaceHolderBuffer(aclrtArgsHandle argsHandle, aclrtParamHandle paramHandle, size_t dataSize, void **bufferAddr)

Python Function

buffer_addr, ret = acl.rt.kernel_args_get_place_holder_buffer(args_handle, param_handle, data_size)

Parameter	Description
args_handle	Int, handle of the parameter list.
param_handle	Int, parameter handle. The value of param_handle must be the same as that of param_handle in the acl.rt.kernel_args_append_place_holder API.
data_size	Int, memory size.

Parameter

Description

args_handle

Int, handle of the parameter list.

param_handle

Int, parameter handle.

The value of param_handle must be the same as that of param_handle in the acl.rt.kernel_args_append_place_holder API.

data_size

Int, memory size.

Return Value	Description
buffer_addr	Int, memory address to which the param_handle placeholder points. You need to manage the data in the memory, but not the memory lifetime.
ret	Int, 0 on success; else, failure.

Description

buffer_addr

Int, memory address to which the param_handle placeholder points.

You need to manage the data in the memory, but not the memory lifetime.

ret

Int, 0 on success; else, failure.

Parent topic: Kernel Loading and Execution