qsubfunc

launching Matlab processes from Matlab under a Unix cluster grid

What is qsubfunc ? qsubfunc() is a Matlab function that submit jobs on the queue system of a Unix cluster running the Sun Grid Engine software (the Unix cluster does not have to be made of Sun machines though).

Features

• After openning a Matlab session, users can submit as many Matlab jobs as they wish

• The submitted Matlab jobs may call plotting functions (redirected to the user X-server automatically (see the qsubfunc function options))

• The submitted Matlab jobs (usually standard function calls) may return values in the local Matlab session (all data are passed through data files)
  

• While jobs are running, users can still run commands on the local matlab session (though this has to be done through the qsubfunc() editing window).

Requirement

• A cluster of Linux or Unix machine with the Sun Grid Engine installed (this software does not require to recompile a new kernel, it simply runs a deamon on each machine).

• Several Matlab license for all computer of the computer grid

• Downloading the qsubfunc.m Matlab function

Installing qsubfunc

1. qsubfunc is distributed under a GNU General Public Licence. Read it first.

2. Download the qsubfunc here (release 24 Oct. 2002)

3. Start Matlab and try this example to see if the qsubfunc() function works

>> qsubfunc({ {'max', { [1:10,11:-1:1] }, { 'maxval' 'maxindex' }} {'min', { [1:10,11:-1:1] }, { 'minval' 'minindex' }}} );

This launches two processes on the grid that compute the following:

>> [maxval maxindex] = max([1:10,11:-1:1]);

>> [minval minindex] = min([1:10,11:-1:1]);

Values are returned in the local workspace

Documentation & troubleshooting

See the function header under Matlab.

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For any comments, to report bugs or suggestions, arno@salk.edu.