Michael, ROMIO is the default in the 1.8 series you can run ompi_info --all | grep io | grep priority ROMIO priority should be 20 and ompio priority should be 10.
Cheers, Gilles On Thursday, July 23, 2015, Schlottke-Lakemper, Michael < m.schlottke-lakem...@aia.rwth-aachen.de> wrote: > Hi Gilles, > > > are you running 1.8.7 or master ? > 1.8.7. We recently upgraded our cluster installation from OpenSUSE > 11.3/OpenMPI 1.6.5 to OpenSUSE 12.3/OpenMPI 1.8.7. Before the upgrade, we > did not encounter this problem. > > > if not default, which io module are you running ? > > (default is ROMIO with 1.8 but ompio with master) > We did not specify anything at configure time, so I guess we are using the > default. But if you tell me how, I can check. > > > by any chance, could you post a simple program that evidences this issue > ? > As of this time, unfortunately no. We only experience this issue > intermittently, and only when running our suite of regression tests. It > *seems* to occur only with a handful of the ~40 tests, but if we run only a > subset of the tests (instead of all of them), it may not occur at all, > depending on the subset. I tried using a MWE program but could not > reproduce the issue with it. > > Sorry for not being more helpful, but we are also scratching our heads > trying to understand what is going on and I just thought that maybe someone > here has had a similar experience in the past (or might give us some > pointers at what to look at). > > Regards, > > Michael > >
