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isgpuarray

Determine whether input is gpuArray

Since R2020b

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    Syntax

    TF = isgpuarray(X)

    Description

    TF = isgpuarray(X) returns logical 1 (true) if X is a gpuArray, and logical 0 (false) otherwise. You can use this function with an if statement to avoid executing code that expects gpuArray input.

    example

    Examples

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    Create an array of random numbers.

    X = rand(3,3);

    Copy the array onto the GPU.

    Y = gpuArray(X);

    Use the function isgpuArray to verify that Y is a gpuArray. 

    isgpuArray(Y)
    ans = 
   1

    Verify that X is not a gpuArray. 

    isgpuarray(X)
    ans = 
   0

    Input Arguments

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    Input variable, specified as a workspace variable. X can be any data type.

    Extended Capabilities

    Version History

    Introduced in R2020b

    See Also

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