Hi Edgar,
Pity, that would have been nice! But thanks for looking.
Checking through the ompi github issues, I now realise I logged exactly
the same issue over a year ago (completely forgot - I've moved jobs since
then), including a script to reproduce the issue on a Lustre system.
Unfortunately there's been no movement:
https://github.com/open-mpi/ompi/issues/6871
If it helps anyone, I can confirm that hdf5 parallel tests pass with
openmpi 3.1.6, but not in 4.0.5.
Surely I cannot be the only one who cares about using a recent openmpi
with hdf5 on lustre?
Mark
On Mon, 16 Nov 2020, Gabriel, Edgar wrote:
hm, I think this sounds like a different issue, somebody who is more
invested in the ROMIO Open MPI work should probably have a look.
Regarding compiling Open MPI with Lustre support for ROMIO, I cannot
test it right now for various reasons, but if I recall correctly the
trick was to provide the --with-lustre option twice, once inside of the
"--with-io-romio-flags=" (along with the option that you provided), and
once outside (for ompio).
Thanks
Edgar
