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<div>All,</div>
<div>I recently installed the current version of MPICH2 1.2.1p1 on a 32-bit XP Pro machine with 8 cores (the machine is 64-bit but the OS is 32). I’m trying to run MCNPX threading all 8 cores. My command line is as follows: </div>
<div>mpiexec –localonly 8 mcnpx i=filename…</div>
<div> </div>
<div>This ran great exactly twice. However, now when I run it I see MCNPX start up normally, create the initial files and then:</div>
<div>Dynamic storage = 0 words, 0 bytes. Cp0 = 0.00</div>
<div>Master starting 7 by 1 subtasks 09/03/10 (time)</div>
<div>Master sending static commons…</div>
<div>Master sending dynamic commons…</div>
<div>Master completed initialization broadcasts.</div>
<div>Rendezvous at nps = 1000 # of microtasks = 7 (date time – this is MCNPX language here)</div>
<div>Rendezvous at nps =***************** of microtasks = 7 (date time – this is MCNPX talk but confusing to me)</div>
<div> </div>
<div>At this point, all 8 cores are running full bore in task manager, but the process gets hung up. The output files are never written or updated (data dumps don’t occur). When I run based on a set number of particle histories (not based on cpu time), the
process seems to work fine. I assume a simple setting got changed somewhere?</div>
<div>Regards,</div>
<div>Eduardo Padilla</div>
<div>Sandia National Labs</div>
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