[R-sig-hpc] Rmpi over mpich2 working, new questions

Thomas Hampton Thomas.H.Hampton at dartmouth.edu
Thu Jul 23 04:50:42 CEST 2009

We worked through our problems and got Rmpi to work on Red Hat, even  
calling it from
papply. Thanks for your help.

Interestingly, a  parallelization of 1,000 trivial operations involving
7 slaves took  32 seconds on our system. Is it possible that the
message passing overhead is borne in serial and takes 32
milliseconds per task?

Thanks again,


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