Error for Scripts on GPU

Question

Maxime Rivard 2019-9-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/480146-error-for-scripts-on-gpu

回答： Rajani Mishra 2020-2-10

Hi,

I am building a function, and calling it with on gpu with @arrayfun(). That function calls another function inside of it, and I get this error: ''Error using gpuArray/arrayfun. Scripts are not supported on the GPU.''

But I have done it in the past and it works fine (Below, computeNewDelta() is a function I made, that I call)... What is my problem?

function [count,Zn]=computeMandelbrotIterationsByDeltaForImage(orbit,Xdelta0,Ydelta0,iteration)
refOrbitX=gpuArray(real(orbit));
refOrbitY=gpuArray(imag(orbit));
maxIterations=iteration;
    function [count,Zn] = innerCompute(dx0,dy0)
        
        
        deltaX = dx0;
        deltaY = dy0;
        count = 1;
        Xn = refOrbitX(1,1)+deltaX;
        Yn = refOrbitY(1,1)+deltaY;
        
        while ( (Xn*Xn+Yn*Yn) < 10000 && count <= maxIterations )
            Xn = refOrbitX(count,1)+deltaX;
            Yn = refOrbitY(count,1)+deltaY;
            [deltaX,deltaY] = computeNewDelta(Xn,deltaX,Yn,deltaY,dx0,dy0);
            count = count + 1;
        end
        Zn=complex(Xn,Yn);
    end
[count,Zn] = arrayfun( @innerCompute,Xdelta0,Ydelta0);
end

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Answer 1

Rajani Mishra 2020-2-10

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/480146-error-for-scripts-on-gpu#answer_414774

Possibly the cause for the error: “Error using gpuArray/arrayfun. Scripts are not supported on the GPU.” is that not all the functions used in your script are GPU supported. Please check that the functions using gpuArrays as input arguments are GPU supported. You can refer to the following link for more information:

https://www.mathworks.com/help/parallel-computing/run-matlab-functions-on-a-gpu.html