Use arrayfun when function has multiple inputs, being one the gpuArray

So, I have a gpuArray to which I would like to chunk into small pieces. I created a function to do exactly that:
function [ splitted_signal ] = ChunkSignals(b_factor, n_chunks, signal)
% Do things
My problem is, when I'm trying to use the function:
split2 = arrayfun(@ChunkSignalsb_factor, n_chunks, signal_2);
It doesn't work. How can I pass my signal (the gpuArray) as an input for this function? Or should I just skip it?
Since my goal here is to process a large data as fast as I can, using the GPU, I want to divide my signal into threads.
Thanks in advance.

2 个评论

Have you tried making n_chunks and b_factor into gpuArrays too?
I don't know much about using arrayfun on the gpu, but it is supported. I'm not sure if you can mix and match CPU and GPU inputs in it though. I would assume you would have to use ether the CPU overload or the GPU overload.
(Also I assume you just pasted your code in wrong as you are missing a comma after @ChunkSignals in your arrayfun)
Do you want it to work on each element of signal2 or the whole array at once?

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Ana
2015-10-30

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