Newsgroups: comp.parallel.pvm
From: edemaine@ug.cs.dal.ca (Erik Demaine)
Subject: Re: Patch #8 for PVM version 3.3 is available on Netlib
Organization: Math, Stats & CS, Dalhousie University, Halifax, NS, Canada
Date: Fri, 4 Aug 1995 22:03:12 GMT
Message-ID: <DCt3xC.n51@cs.dal.ca>

weicheng jiang (wjiang@thud.cs.utk.edu) wrote:
: The SP2 port in PVM3.3.8 is based on IBM's MPI-F, not MPICH. IBM's MPI-F
: offers similar communication performance as MPL.
: You must have IBM's MPI-F installed on your SP2 to take advantage of this 
: special port.

If the port is based on MPI-F and MPI-F is a _true_ MPI implementation, then
why wouldn't it work atop MPICH?  MPICH has a special implementation for the
SP-2 using MPL, and I have achieved _very_ good results.  Unfortunately, I do
not have MPI-F to compare to, but I seem to recall a paper on this topic that
realized commertial implementations are only slightly faster than the free,
portable ones.

Erik
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