Robert Oostenveld

Updates from July, 2010 Toggle Comment Threads | Keyboard Shortcuts

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  Robert 15:28 on July 10, 2010 Permalink | Reply  

  Peer-to-peer distributed Matlab computing – update 

  After discussing in detail with colleagues at the Donders and at the FIL, I have implemented the peer-to-peer distributed computing toolbox for MATLAB. Most of the desired functionality is now in place, and it seems to work robustly and efficiently.

  The peer toolbox allows you to do something like this in MATLAB
  
  a = randn(400,400);
  tic; cellfun('pinv', {a, a, a, a, a}, 'UniformOutput', false); toc
  tic; peercellfun('pinv', {a, a, a, a, a}, 'UniformOutput', false); toc
  

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  Robert, and Pedro are discussing. Toggle Comments

   
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    Pedro 02:21 on July 18, 2010 Permalink

    Hi Mr. Oostenveld, I came to this page looling for meaningfull electrode locations from the site:
    http://oase.uci.ru.nl/~roberto/index.php/electrode/
    I dont know how to get these, so please, If you know how to get this data, please let me know.

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    Robert 13:09 on July 18, 2010 Permalink

    the page you are looking for is currently located at http://robertoostenveld.ruhosting.nl/index.php/electrode

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  Robert 00:05 on January 26, 2010 Permalink | Reply  

  FieldTrip updates on twitter 

  It is now possible to follow the FieldTrip SVN updates on twitter.
  See http://twitter.com/fieldtriptoolbx

   
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  Robert 00:02 on January 26, 2010 Permalink | Reply
  Tags: peer   

  Peer-to-peer distributed Matlab computing 

  In a recent meeting with the SPM developers, we discussed parallel computing using the Matlab distributed computing toolbox, Star-P, Sun Grid Engine, and other batch systems that can be linked to Matlab. These are all limited in their usefulness for the typical neuroimaging research setting in that they are based on a centralized job distribution system. That may work fine on a large cluster with a centralized configuration and system administration, but even then the usefullness is limited because all input and output data (which are typically large) have to be send over the network twice: first to the job manager, then to the compute node (and vice versa for the results).

  To resolve some of these problems, I came up with the idea of peer-to-peer distributed computing in Matlab. The full description can be found on http://fieldtrip.fcdonders.nl/development/peer