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<p class=MsoNormal>Hi all,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m trying to get an MPD build of MPICH2-1.0.8 working
on a 64-bit Mac cluster, with jobs being scheduled by SGE.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m submitting a shell script which calls mpdboot
based on the hosts allocated by SGE, using “rsh”. When I then
attempt to run my process under mpiexec, the process that gets launched on the
remote nodes seems to be “broken” in some way. For example, imagine
I get allocated nodes “node01” and “node02”. If were to
run (from within my shell script that I’ve submitted to SGE)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>mpiexec -n 2 whoami<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>this would give me the expected output on “node01”
where SGE has launched my wrapper script, but on “node02”, I just
see a numeric result from whoami. Also, if I attempt to do something more
adventurous like<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>mpiexec -n 2 ping -c node01<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>this shows that the process launched on “node02”
cannot access the network. If I try and launch my actual application, it is
completely broken by this lack of access to the network.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Has anyone seen anything like this? I have no idea if the
problem is with MPICH2, SGE, Mac, or something else. Any clues gratefully
received. (At the moment, I haven’t been able to attempt to use mpiexec
outside of the control of SGE to remove that piece, but I should be able to do
that)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Cheers,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Edric.<o:p></o:p></p>
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