Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: Re: [OMPI users] Problem with NFS + PVFS2 + OpenMPI
From: Davi Vercillo C. Garcia (davivercillo_at_[hidden])
Date: 2008-05-29 15:46:59


Hi,

I'm already using "noac" option on my /etc/fstab but this error is
still happening. I need to put this in another file ?

On Thu, May 29, 2008 at 4:33 PM, Brock Palen <brockp_at_[hidden]> wrote:
> Well don't run like this. Have PVFS have NFS, don't mix them like that your
> asking for pain, my 2 cents.
> I get this error all the time also, you have to disable a large portion of
> the caching that NFS does to make sure that all MPI-IO clients get true data
> on the file they are all trying to access. To make this work check in your
> /etc/fstab and see if you have the 'noac' option. This
> is attribute caching, this must be disabled.
>
> On that note PVFS2 is made for doing MPI-IO to multiple hosts (thus no need
> for NFS) because it was made with MPI-IO in mind it should work out the
> box.
> Brock Palen
> www.umich.edu/~brockp
> Center for Advanced Computing
> brockp_at_[hidden]
> (734)936-1985
>
>
> On May 29, 2008, at 3:24 PM, Davi Vercillo C. Garcia wrote:
>
> Hi,
> I'm trying to run my program in my environment and some problems are
> happening. My environment is based on PVFS2 over NFS (PVFS is mounted
> over NFS partition), OpenMPI and Ubuntu. My program uses MPI-IO and
> BZ2 development libraries. When I tried to run, a message appears:
> File locking failed in ADIOI_Set_lock. If the file system is NFS, you
> need to use NFS version 3, ensure that the lockd daemon is running on
> all the machines, and mount the directory with the 'noac' option (no
> attribute caching).
> [campogrande05.dcc.ufrj.br:05005] MPI_ABORT invoked on rank 0 in
> communicator MPI_COMM_WORLD with errorcode 1
> mpiexec noticed that job rank 1 with PID 5008 on node campogrande04
> exited on signal 15 (Terminated).
> Why ?!
> --
> Davi Vercillo Carneiro Garcia
> Universidade Federal do Rio de Janeiro
> Departamento de Ciência da Computação
> DCC-IM/UFRJ - http://www.dcc.ufrj.br
> "Good things come to those who... wait." - Debian Project
> "A computer is like air conditioning: it becomes useless when you open
> windows." - Linus Torvalds
> "Há duas coisas infinitas, o universo e a burrice humana. E eu estou
> em dúvida quanto o primeiro." - Albert
> Einstein<comprime.c>_______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>

-- 
Davi Vercillo Carneiro Garcia
Universidade Federal do Rio de Janeiro
Departamento de Ciência da Computação
DCC-IM/UFRJ - http://www.dcc.ufrj.br
"Good things come to those who... wait." - Debian Project
"A computer is like air conditioning: it becomes useless when you open
windows." - Linus Torvalds
"Há duas coisas infinitas, o universo e a burrice humana. E eu estou
em dúvida quanto o primeiro." - Albert Einstein