On Feb 23, 2006, at 11:19 AM, Robert Latham wrote:
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.
FYI, my setup has 4 servers.
-sam
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
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