<html><P>ch3:sock is a different communication mechanism from the default<BR>ch3:nemesis used in mpich2-1.1. ch3:sock used to be default before<BR>mpich2-1.1. I think the installer guide has a section on the <BR>communication device.<BR><BR>A.Chan<BR></P>
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<P>Unfortunatly, for someone like me, it is not clear when that change should be used.</P></html>