[Beowulf] A Sample MPI job

[Richard]

Dear All,

This is my first post to this mailing list. I don't know if I can ask 
this question here.But I will try.

I have a big system ( proprietory system not beowulf ) to maintain and I 
don't know anything about programming.

I want to test the performance of this system.  Can anyone send me a 
sample MPI/MPICH job that I can run to test the performance of the system.

Thanks,

Richard