User`s guide

11 Functions — Alphabetical List

11-200

mxGPUIsValidGPUData (C)

Determine if mxArray is pointer to valid GPU data

C Syntax

#include "gpu/mxGPUArray.h"

int mxGPUIsValidGPUData(mxArray const * const mp)

Arguments

mgp

Pointer to an mxArray.

Returns

int type.

Description

mxGPUIsValidGPUData indicates if the mxArray is a pointer to valid GPU data

If the GPU device is reinitialized in MATLAB with gpuDevice, all data on the device

becomes invalid, but the CPU data structures that refer to the GPU data still exist. This

function checks whether the mxArray is a container of valid GPU data, and returns one

of the following values:

• 0 (false) for CPU data or for invalid GPU data.

• 1 (true) for valid GPU data.