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Re: [Condor-users] Parallel Computing Using Globus and Condor

2) Does the globus or condor will automatically do this for us, or do we need to write a separate program to do this or the job it self should be written in special way to accomplish this.

You will need to do this explicitly.

4) What is MPI, MPICH and what for it has been used.

MPI is a standard API for running parallel programs. MPICH is a commonly used implementation of that standard. Condor supports MPICH, but you must explicity design your program to call the various MPI routines.

Depending on your job, it may be easier to break your one big job into many smaller, independent jobs, and submit those many jobs to Condor all at once. Condor will then run those jobs on as many machines as it can.