Problem in opening huge files in GPFS

Added by email2trac

This message has 1 attachment(s)

Try adding a prefix ufs: to the filename in MPI_File_open. For example,
ufs:/gpfs/username/foo.out.

Rajeev


> -----Original Message-----
> From: mpich2-bugs-bounces@mcs.anl.gov
> [mailto:mpich2-bugs-bounces@mcs.anl.gov] On Behalf Of mpich2
> Sent: Tuesday, December 02, 2008 8:57 PM
> To: undisclosed-recipients:
> Subject: [mpich2-maint] #316: Problem in opening huge files in GPFS
>
> -----------------------------------------------+--------------
> ----------
> -----------------------------------------------+----
>  Reporter:  "Karthik Babu" <kparasu@ncsu.edu>  |        Type:  bug
>    Status:  new                                |    Priority:  major
> Milestone:                                     |   Component:  mpich2
> -----------------------------------------------+--------------
> ----------
> -----------------------------------------------+----
>
>
>  {{{
>
>  Hi,
>
>  I am currently facing problems in opening and reading files
> >2GB. I am  getting following error.
>
>  "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).
>  [4] MPI Abort by user Aborting program !
>  [4] Aborting program!"
>
>  The file system is GPFS. Please let me know if you need any
> other  information.
>
>  Thanks,
>  Karthik
>  }}}
>
>
> --
> Ticket URL: <https://trac.mcs.anl.gov/projects/mpich2/ticket/316>
>