<html><body bgcolor="#FFFFFF"><div>Did you try "mpiexec -n 16 ..."?<br><br>Sent from my iPhone</div><div><br>On Nov 27, 2012, at 10:37 PM, Zachary Stanko <<a href="mailto:zstanko@usgs.gov">zstanko@usgs.gov</a>> wrote:<br>
<br></div><div></div><blockquote type="cite"><div><font face="sans-serif">Hello,</font>
<br>
<br><font face="sans-serif">I am running an MPI program on a machine
with two 16-core processors yet, no matter what configuration I use with
mpiexec, I am only receiving 4 simultaneous processes.</font>
<br><font face="sans-serif">I would like to maximize this machine's
potential and run 8 or 16 processes. I have tried all of the channel selections
and tried the -binding option.</font>
<br><font face="sans-serif">Since I need to specify a different
working directory for each process (due to many output files with naming
conflicts), I have a config file with 8 lines of the form:</font>
<br>
<br><font face="sans-serif">-n 1 -binding auto -dir <mydir01>
<myprog> <inpfile></font>
<br><font face="sans-serif">-n 1 -binding auto -dir <mydir02>
<myprog> <inpfile></font>
<br><font face="sans-serif">...etc</font>
<br>
<br><font face="sans-serif">and I run:</font>
<br>
<br><font face="sans-serif">mpiexec -configfile <filename></font>
<br>
<br><font face="sans-serif">Am I doing something wrong, or does
MPICH just know best and cannot run more than 4 jobs at a time on this
system?</font>
<br>
<br><font face="sans-serif">Thanks,</font>
<br>
<br><font face="sans-serif">Zak</font></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>discuss mailing list <a href="mailto:discuss@mpich.org"><a href="mailto:discuss@mpich.org">discuss@mpich.org</a></a></span><br>
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