acldvppMallocWithCfg

Applicability

Product	Supported (Yes/No)
Atlas 350 Accelerator Card	x
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	√

Function Description

Allocates device memory for media processing. The allocated huge page memory meets the data processing requirements (for example, the start address is 128-byte aligned). The restrictions are the same as those of acldvppMalloc. Unlike acldvppMalloc, this API can also specify memory configuration when allocating memory.

Prototype

      
           aclError acldvppMallocWithCfg(void **devPtr, size_t size, aclrtMemMallocPolicy policy, aclrtMallocConfig *cfg)

Parameters

Parameter	Input/Output	Description
devPtr	Output	Pointer to the pointer to the allocated device memory
size	Input	Allocated memory size, in bytes. The size cannot be 0.
policy	Input	Memory allocation policy. If the configured memory allocation rule exceeds the value range of aclrtMemMallocPolicy and size is greater than or equal to 2 MB, memory is allocated based on huge pages. Otherwise, memory is allocated based on normal pages.
cfg	Input	Memory configuration. For the type definition, see aclrtMallocConfig. If it is not specified, NULL can be passed.

Returns

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

Parent topic: Memory allocation and deallocation