[Eeglablist] Computing ERSPs in parallel?

[Makoto Miyakoshi]

Dear Arno and Ramon,

Here is a question for the EEGLAB developers.

Makoto

On Fri, May 1, 2015 at 9:53 AM, Tom Bullock <thomas.bullock at psych.ucsb.edu>
wrote:

> Hello EEGLAB community,
>
> I'm using the STUDY function to compute ERSPs for a dataset with 18
> subjects and 3 conditions per subject.  The ERSPs take a number of hours to
> compute, so I'd like to set up a parfor loop to create the "xxx.datersp"
> files in parallel using our distributed processing network.
>
> This post indicates that it should be possible to set up the parfor loop:
> http://sccn.ucsd.edu/pipermail/eeglablist/2014/008914.html . However I'm
> not sure which of the functions involved in the ERSP computation is the one
> I should attempt to parallelize (std_precomp.m, std_ersp.m or newtimef.m?),
> and which of the for loops I should be editing.
>
> Does anyone have any insight into how to set this up?
>
> Thanks!
>
> Tom
>
> p.s. this is the function I'm currently using to create the ERSPs:
>
> [STUDY ALLEEG] = std_precomp(STUDY, ALLEEG,
> {},'interp','on','recompute','on','ersp','on','erspparams',...
> {'cycles' cycleParam  'nfreqs' 27 'timesout' [0:100:3000]  'freqs' [4 30]
> },'itc','off');
>
> --
> Tom Bullock, PhD
>
> Postdoctoral Researcher, Department of Psychological and Brain Sciences,
> University of California, Santa Barbara, CA 93106-9660
>
> bullock at psych.ucsb.edu
>
> https://labs.psych.ucsb.edu/giesbrecht/barry/Attention_Lab/Tom_Bullock.html
>
> www.linkedin.com/in/tomwbullock
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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