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<DIV dir=ltr align=left><SPAN class=296183605-24022009><FONT face=Arial
color=#0000ff size=2>To run MPICH2 with SLURM, configure with the options
"--with-pmi=slurm --with-pm=no" as described in the MPICH2 README file. Also see
the instructions on how to run MPICH2 with SLURM at <A
href="https://computing.llnl.gov/linux/slurm/quickstart.html">https://computing.llnl.gov/linux/slurm/quickstart.html</A> .</FONT></SPAN></DIV>
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color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=296183605-24022009><FONT face=Arial
color=#0000ff size=2>Rajeev</FONT></SPAN></DIV>
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<FONT face=Tahoma size=2><B>From:</B> mpich-discuss-bounces@mcs.anl.gov
[mailto:mpich-discuss-bounces@mcs.anl.gov] <B>On Behalf Of </B>Gauri
Kulkarni<BR><B>Sent:</B> Monday, February 23, 2009 11:19 PM<BR><B>To:</B>
mpich-discuss@mcs.anl.gov<BR><B>Subject:</B> [mpich-discuss] HP-XC 3000
cluster issues<BR></FONT><BR></DIV>
<DIV></DIV>Hi,<BR><BR>I am a newbie to the MPI in general. Currently in our
institute, we have a cluster of 16nodes-8processors. It is an HP-XC 3000
cluster which basically means, it's quite proprietary. It has its own MPI
implementation - HP-MPI - in which, the parallelization is managed by SLURM
(Simple Linux Utility for Resource Management). There is also a batch job
scheduler - LSF (Load Sharing Facility) which works in tandem with SLURM to
parallelize the batch jobs. We have installed both MPICH and MPICH2 and are
testing it, but we are running into compatibility issues. For a simple
helloworld.c program:<BR>1. For HPMPI: Compiled with mpicc of this
implemetation and executed with its mpirun: mpirun -np 4 helloworld works
correctly. For batch scheduling, we need to isse "bsub -n4 [other options]
mpirun -srun helloworld" and it runs fine too. "srun" is SLURM utility that
parallelizes the jobs.<BR>2. For MPICH and mPICH2: Again, compiled with mpicc
of these respective implemetations and executed with their own
mpirun:<BR> i) mpirun -np 4 helloword :
Works.<BR> ii) mpirun -np 15 helloworld: The parallelization is
limited to just a single node - that is 8 processes run first on 8 processors
of a single node and then remaining ones.<BR> iii) bsub -n4 [options]
mpirun -srun hellowrold: Job terminated. srun option not
recognized.<BR> iv) bsub [options] mpirun -np 4 helloworld:
Works<BR> V) bsub [options] mpirun -np 15 helloworld: (Same as
iii)<BR><BR>Anybody aware of HP cluster issues with MPICH? Am I
misinterpreting? Any help is appreciated.<BR
clear=all><BR>Gauri.<BR>---------<BR></BLOCKQUOTE></BODY></HTML>