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.pdf to 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
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