GmAlloc

Supported Products

Product	Supported/Unsupported
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	√
Atlas inference product's AI Core	√
Atlas inference product's Vector Core	x
Atlas training products	√

Functions

Creates shared memory during verification of the CPU-side operation of the kernel function. That is, creates a shared file in the /tmp directory and returns the mapping pointer to the file.

Prototype

void *GmAlloc(size_t size)

Parameters

Parameter	Input/Output	Description
size	Input	Size of the shared memory to be allocated.

Returns

Returns the start address of the shared memory space.

Constraints

This API generates a temporary file in the system /tmp directory. Therefore, the shared memory can be properly generated only when the drive space is sufficient.

Examples

constexpr size_t len = 8 * 32 * 1024 * 8;
half* x = (half*) GmAlloc(len*sizeof(half));

Parent topic: CPU twin debugging