Newsgroups: comp.parallel.pvm
From: Darren Porras <dporras@crml.uab.edu>
Subject: Power Challenge Array and PVM
Organization: University of Alabama at Birmingham
Date: Thu, 23 Jan 1997 16:42:04 -0600
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Message-ID: <32E7E93C.1D1@crml.uab.edu>

Hi All!

I am doing a PVM application on a Power Challenge array. The array
consists of 8 machines with 12 processors (nodes) on each machine. I
have two main questions. First, lets say my virtual machine consists of
one machine. If I spawn more than one task(or run several tasks on
different multi-proc machines), how will they be distribtued among the
different nodes? Will all tasks execute on one or will they be
distributed in some fashion. How can I find out how they are distrbuted?
Can I influence this distribution? 

My second question deals with machine-machine communication. The Power
Challenge array indicates HiPPI interconnection. How can I verify that
PVM is using this communication instead of an Ethernet connection?

Thanks!

Darren Porras