Cannot explicitly run parpool to completion?

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David Short 2016-5-20

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https://ww2.mathworks.cn/matlabcentral/answers/285152-cannot-explicitly-run-parpool-to-completion

评论： jgg 2016-5-27

matlab 2014B on a laptop. The laptop has several version of the matlap on it. I can allocate a pool using the icon in the bottom left of the interface. The pool allocates and is used just fine. The local cluster default configuration passes validation test. The licenses match. I can execute a parpool command from the command line and it works just fine.

When I execute a parpool command from a script it hangs for....well longer than I have patience. I was up above 30 minutes.

This worked several months ago.

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Bharath Rangaswamy 2016-5-26

Hi David,

1. What does your script do? 2. Is this issue specific for this script? 3. Try creating a script with just 'parpool' in it and check if that also causes error? 4. Make sure you delete the pool, if any, before you start your script.

-Bharath

jgg 2016-5-27

Do you load a large amount of data into memory before creating your parallel pool? I've had this issue before and this was the driver behind that. I resolved it by moving the parallel creation to before the data load.

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