Re: [OMPI users] Problem with NFS + PVFS2 + OpenMPI

Hi, Sorry but I made a mistake... I'm not trying to use PVFS over NFS but PVFS over EXT3. I still don't know this error message... On Thu, May 29, 2008 at 5:33 PM, Robert Latham wrote: > On Thu, May 29, 2008 at 04:48:49PM -0300, Davi Vercillo C. Garcia wrote: >> > Oh, I see

Re: [OMPI users] Problem with NFS + PVFS2 + OpenMPI

On Thu, May 29, 2008 at 04:48:49PM -0300, Davi Vercillo C. Garcia wrote: > > Oh, I see you want to use ordered i/o in your application. PVFS > > doesn't support that mode. However, since you know how much data each > > process wants to write, a combination of MPI_Scan (to compute each > >

Re: [OMPI users] Problem with NFS + PVFS2 + OpenMPI

That I don't know, we use lustre for this stuff now. And our users don't use parallel IO, (though I hope to change that). Sorry can't help more. I would really use 'just' pvfs2 for your IO. The other reply pointed out you can have both and not use NFS at all for your IO but leave it

Re: [OMPI users] Problem with NFS + PVFS2 + OpenMPI

HI, > Oh, I see you want to use ordered i/o in your application. PVFS > doesn't support that mode. However, since you know how much data each > process wants to write, a combination of MPI_Scan (to compute each > processes offset) and MPI_File_write_at_all (to carry out the > collective i/o)

Re: [OMPI users] Problem with NFS + PVFS2 + OpenMPI

On Thu, May 29, 2008 at 04:24:18PM -0300, 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 >

[OMPI users] Problem with NFS + PVFS2 + OpenMPI

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