Error using arrayfun inside spmd function

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I'm using spmd to run parallel instances of a function. Inside that function, I'm attempting to use arrayfun. When I run in serial, without spmd, it works fine but more slowly. When using the two features in combination I get this error:

Error detected on worker 3.
The class parallel.internal.types.Atomic has no Constant property or Static method name 'enumerate'.

Is this supported? I see on the linked page that spmd cannot contain par-for loops, but no mention of arrayfun. http://www.mathworks.com/help/distcomp/programming-tips_brukbnp-9.html#brukbnp-12

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michio 2016-9-1

Do you use arrayfun to run on GPU?

Zac Drake 2016-9-1

Yes, the data passed into arrayfun is on the GPU.

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Answer 1

michio 2016-9-2

在 MATLAB Online 中打开

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I believe use of arrayfun (GPU) within spmd itself is supported. Will the following script give an error on your environment?

fun = @(x,y)(x.*y);
spmd
%GPU run code from each worker      
R1 = rand(labindex,5,'gpuArray');
R2 = rand(labindex,5,'gpuArray');
R = arrayfun(fun,R1,R2);
end
R

Could you share a sample script that allows us to reproduce the issue?

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Zac Drake 2016-9-7

Your sample code ran perfectly. I ran my code again and I'm no longer receiving the error. All I can think of is bad data in my workspace. Thank you for your help!

michio 2016-9-7

Good to hear that you do not get errors anymore!

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