On Wednesday 18 February 2004 06:38 pm, Michael Will wrote: > In article <[EMAIL PROTECTED]>, John Schmidt wrote: > > Since upgrading to mpich 1.2.5.2-1, our big mpi based application has > > stopped working. I get this error: > > > > mpirun -np 2 sus -mpm inputs/MPM/disks2mat4patch.ups > > xm_2407: p4_error: Command-line arguments are missing: 0 > > /usr/bin/mpirun: line 1: 2407 Segmentation > > fault /home/jas/SCIRun/NewBC/debug/Packages/Uintah/StandAlone/sus > > "-mpm" "inputs/MPM/disks2mat4patch.ups" > > -p4pg /home/jas/SCIRun/NewBC/debug/Packages/Uintah/StandAlone/PI2327 > > -p4wd /home/jas/SCIRun/NewBC/debug/Packages/Uintah/StandAlone > > > > To confirm that mpi is working, I compiled the mpich examples found in > > the documentation and ran them for various number of processors and all > > worked fine using mpich 1.2.5.2-1. > > > > On a different machine, I am running mpich 1.2.5-6, and the above command > > (mpirun -np 2 sus -mpm inputs/MPM/disks2mat4patch.ups) works without any > > problems. > > Did you recompile your application? Maybe it has different command line > parameters passed to the executable that the mpi implementation picks up > on. > > mpirun is just a script wrapper - try setting it to verbose (set -x) and > see what it actually executes. > I assume it will execute another script wrapper mpirun.ch_p4 which again > you could follow with 'set -x'. Then see if you can make sure it does not > place any parameters on your executable that it does not like... > > No idea what the -O stands for. > > Even better, try this on both systems to see the difference: > > $ mpirun /bin/echo > > In my case the output was '-p4pg /home/mwill/PI11082 -p4wd /home/mwill' > for an older Scyld-6 beowulf cluster: > > mpich-1.2.5-8.5_Scyld > mpich-p4-gnu-1.2.5-8.5_Scyld > > Michael > -- > Michael Will, Linux Sales Engineer > Tel: 415.358.2673 Toll Free: 888-PENGUIN > PENGUIN COMPUTING - The World's Most Reliable Linux System > www.penguincomputing.com
Michael, Thanks for taking the time to respond. Actually, our application had changed how it was picking up the mpich arguments and I didn't catch it in the source code. Once I figured that out and changed the source code, things are now working fine. John -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
