[condor-users] synchronously starting multiple jobs in Condor

[Hahn Kim <hgk@xxxxxxxxxx>]

My group has developed a Matlab library, called MatlabMPI, which 
implements a subset of the MPI library.  Currently, it launches Matlab 
on multiple machines by sending commands via rsh.  Currently, we are 
trying to integrate MatlabMPI with Condor.

Like MPI, all processes in a MatlabMPI program must start executing at 
the same time.  Otherwise, any process that needs to communicate with an 
idle process will cause the MatlabMPI program to hang.

We have been trying to figure out if there is a way to force Condor to 
synchronously start executing a set of Matlab processes distributed 
across a cluster.  Does any one have any ideas?  Is this functionality 
built into Condor, or will this require a hack?

--
Hahn Kim
MIT Lincoln Laboratory    Phone: (781) 981-0940
244 Wood Street, S2-252     Fax: (781) 981-5255
Lexington, MA 02420      E-mail: hgk@xxxxxxxxxx

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