Unfortunately, we don't have a whole lot of insight into how the
internals of the IO support work -- we mainly bundle the ROMIO package
from MPICH2 into Open MPI. Our latest integration was the ROMIO from
MPICH2 v1.0.7.
Do you see the same behavior if you run your application under MPICH2
Thanks for the quick reply and suggestions.
I have tried both isolating the output to a single OST and striping across
multiple OSTs. Both will produce the same result. I have tried compiling
with multiple versions of both pathscale and intel compilers all with the
same result.
The odd thing is t
Hi Nathan,
I just ran your code here and it worked fine - CentOS 5 on dual Xeons w/
IB network, and the kernel is 2.6.18-53.1.14.el5_lustre.1.6.5smp. I used an
OpenMPI 1.3.0 install compiled with Intel 11.0.081 and, independently, one
with GCC 4.1.2. I tried a few different times with varying
Hello,
I am seeing inconsistent mpi-io behavior when writing to a Lustre file
system using open mpi 1.3 with romio. What follows is a simple reproducer
and output. Essentially one or more of the running processes does not read
or write the correct amount of data to its part of a file residing on a
