[PVFS2-users] using ROMIO interface

Robert Latham robl at mcs.anl.gov
Thu Oct 14 14:51:23 EDT 2004

On Thu, Oct 14, 2004 at 02:28:23PM -0400, Weikuan Yu wrote:
> Can anybody provide a pointer about some guide to run ROMIO over 
> PVFS/PVFS2 in user space, i.e., without VFS support?
> Many thanks in advance,

has some information about configuring MPICH2 for PVFS2 support.

When your MPI-IO program opens a file, it should prefix the file name
with "pvfs2:".   You do not need to have the PVFS2 file system mounted
through the VFS, but you should add an entry for PVFS2 to your

Are you asking how to configure ROMIO with PVFS2 support, or are you
asking how to tell an MPI-IO application to use PVFS2 routines?


Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Labs, IL USA                B29D F333 664A 4280 315B

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