Sorry I was not more clear. I think the installation order you're following is correct. What I would recommend is making sure the MPICH2 environment works first by running a simple MPI program and then trying to do MPI-IO with PVFS2. The reason for compiling PVFS2 support into MPICH2 is to do MPI-IO to PVFS2. If a simple, non-MPI-IO MPI program doesn't work then I would assume there is an issue with the MPICH2 installation that needs to get resolved.
Michael On Sat, Nov 5, 2011 at 4:48 PM, nachiappan arumugam <[email protected] > wrote: > Hi Michael, > > Do you recommend installing MPICH2 and then install PVFS2 over it ? > But then the PVFS2 guide says I need to add the option --with-pvfs2 while > configuring MPICH2. > Is my understanding on this point correct ? I install PVFS2, then while > installing MPICH2, I add the option > ./configure --with-prefix=<path of the PVFS2> > > On Sat, Nov 5, 2011 at 9:34 AM, Michael Moore <[email protected]>wrote: > >> Hi Nachiappan, >> >> I don't believe there is a full guide explaining PVFS with MPICH2. A >> first step may be to take PVFS2 out of the equation and make sure you have >> a working MPICH2 environment and then add PVFS2 back. It appears you're >> following the right install guides so your setup may just need a little >> tweaking. I know there are several people on the list with lots of >> MPICH2/PVFS experience who may be able to provide some more specific >> pointers. >> >> Michael >> >> On Sat, Nov 5, 2011 at 12:13 AM, nachiappan arumugam < >> [email protected]> wrote: >> >>> Hi All, >>> >>> I am a newbie to PVFS and I am trying to setup a cluster using Amazon >>> EC2 nodes. >>> I followed the steps mentioned in >>> http://www.pvfs.org/cvs/pvfs-2-8-branch-docs/doc//pvfs2-quickstart.pdfto >>> setup PVFS2. >>> I verified the setup using ./pvfs2-ping and ./pvfs2-cp and it worked >>> fine - so my assumption here is that PVFS has started working. >>> In my setup I have four IO server of which one also acts as metadata >>> server and all 4 act as compute nodes as well. >>> >>> With this assumption I proceeded with the installation of MPICH2, for >>> this I followed the instructions mentioned in >>> >>> http://www.mcs.anl.gov/research/projects/mpich2/documentation/files/mpich2-1.4.1-installguide.pdf >>> >>> In the PVFS guide it was mentioned that if MPI has to talk to PVFS I >>> need to add --with-pvfs2=PVFS PREFIX while doing ./configure of MPICH. >>> Is this the right way to do ? After doing this I wrote a simple MPI >>> program, compiled it and tried running on all the 4 nodes and I >>> got an error message saying the executable is not available on the other >>> three nodes, so the execution failed. I tried placing the executable >>> on PVFS and as well as on the local disk of the machine where I compiled >>> it. And still I wasnt able to run the program on all the nodes. >>> >>> I am not sure where I am going wrong so looking for help or pointers. Is >>> there a guide which explains the complete steps to setup a cluster with >>> PVFS2 and MPICH2? >>> >>> Thanks, >>> Nachiappan A >>> >>> _______________________________________________ >>> Pvfs2-users mailing list >>> [email protected] >>> http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users >>> >>> >> > > > -- > Thanks, > Nachiappan A > >
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