[Pvfs2-developers] Small I/O - Write response doesn't fill in total_completed

[Robert Latham]

On Wed, Feb 22, 2006 at 07:46:09PM -0600, Avery Ching wrote:
> Hi guys.  I'm sending you guys a link for a somewhat complex I/O
> benchmark I wrote for doing all kinds of noncontiguous I/O through
> MPI-IO.  It's called HPIO and does all kinds of weird tests.  Anyway, it
> is really overkill for this small I/O bug, but the nice thing is that I
> have a verify mode which allows me check what values the writes and
> reads are against the actual buffer read/written to.

benchmark does indeed look pretty thourough.   Thanks for sharing.  

> mpiexec -n 1 ./hpio-debug -t 10 -m 1 -n 1000  -v 1 -c 1 -d pvfs2:/mnt/pvfs2

did this, and did a few other parameters as well.  

> And it will error with
> 
> count=0,elements=0
> region_count=1,region_size=512

didn't get that. I'm running with three pvfs2 servers from CVS and
mpich2 from CVS.  It all seems to be working ok for me here.  

What other variables could be in play?   Are you sure you've got ROMIO
building against the correct pvfs2 installation?

Are you using MPICH2 from HEAD or your datatype io branch?

==rob

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