I had sent a message two weeks ago about this problem and talked with
jeff at SC06 about how it might not be a OMPI problem. But it
appears now working with myricom that it is a problem in both
lam-7.1.2 and openmpi-1.1.2/1.1.1. Basically the results from a HPL
run are wrong, Also causes a large number of packets to be dropped
by the fabric.
This problem does not happen when using mpichgm. The number of
dropped packets does not go up. There is a ticket open with myircom
on this. They are a member of the group working on OMPI but i sent
this out just to bring the list uptodate.
If you have any questions feel free to ask me. The details are in
the archive.
Brock Palen
Center for Advanced Computing
bro...@umich.edu
(734)936-1985
