[mpich-discuss] MPI_File_open failed on NFS

Yusong Wang ywang25 at aps.anl.gov
Fri Mar 20 13:58:26 CDT 2009


If that can fix the problem, it will be great. I tried the new 1.0.8
version on a smaller cluster with 8 CPUs and a local file server. I
didn't experience this problem when I launched 100 processes (write 8
files). The production cluster has different configuration, e.g. remote
file server, etc. I will request an MPICH2 upgrade for the production
cluster.

Yusong

On Fri, 2009-03-20 at 11:58 -0500, Robert Latham wrote:
> On Wed, Mar 18, 2009 at 10:51:16PM -0400, Yusong Wang wrote:
> > I got following errors on an NFS file system sometime when running
> > several MPI programs simultaneously. Each program opens several shared
> > files with parallel I/O (from MPICH2 1.0.5) .    
> 
> If this is what I think it is, then we fixed this in 1.0.6.  Can you
> try 1.0.8 and let me know how that works out?
> 
> ==rob>
>
>



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