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codistributed array, parallel computing

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Franz-Josef
Franz-Josef 2011년 8월 8일
마감: MATLAB Answer Bot 2021년 8월 20일
Hello!
I have to compute a large matrix of data. For example: for i=1:3E5 A(:,i) = ... end Do to this I use the parallel computing toolbox. The amount of memory is in my opinion very large, because the array A is copied to every worker. If I define A as a codistributed array, the for loop becames very slow (I use for drange). Are there any suggestions to speed up this computation? Thx!
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Walter Roberson
Walter Roberson 2011년 8월 8일
Just to check: you _are_ preallocating A, right?

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Jill Reese
Jill Reese 2011년 8월 8일
Could you post the code that you are currently using? It would be easier to make suggestions based on what you have already tried.
Thanks,
Jill

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