[OMPI users] How it the rank determined (Open MPI and Podman)

2019-07-11 Thread Adrian Reber via users
I did a quick test to see if I can use Podman in combination with Open MPI: [test@test1 ~]$ mpirun --hostfile ~/hosts podman run quay.io/adrianreber/mpi-test /home/mpi/hello Hello, world (1 procs total) --> Process # 0 of 1 is alive. ->789b8fb622ef Hello, world (1 procs total)

Re: [OMPI users] How it the rank determined (Open MPI and Podman)

2019-07-11 Thread Adrian Reber via users
easy ride. > > > Cheers, > > > Gilles > > > On 7/11/2019 4:35 PM, Adrian Reber via users wrote: > > I did a quick test to see if I can use Podman in combination with Open > > MPI: > > > > [test@test1 ~]$ mpirun --hostfile ~/hosts podm

Re: [OMPI users] How it the rank determined (Open MPI and Podman)

2019-07-12 Thread Adrian Reber via users
completed MPI_Barrier Rank 1 has completed MPI_Barrier This is using the Open MPI ring.c example with SIZE increased from 20 to 2. Any recommendations what vader needs to communicate correctly? Adrian On Thu, Jul 11, 2019 at 12:07:35PM +0200, Adrian Reber via users wrote

Re: [OMPI users] How it the rank determined (Open MPI and Podman)

2019-07-12 Thread Adrian Reber via users
?) that might > be dropped by podman. > > Note Open MPI might not detect both MPI tasks run on the same node because of > podman. > If you use UCX, then btl/vader is not used at all (pml/ucx is used instead) > > > Cheers, > > Gilles > > Sent from my iPod >

Re: [OMPI users] How it the rank determined (Open MPI and Podman)

2019-07-21 Thread Adrian Reber via users
also be necessary. Is this a use case important enough to accept a patch for it? Adrian On Fri, Jul 12, 2019 at 03:42:15PM +0200, Adrian Reber via users wrote: > Gilles, > > thanks again. Adding '--mca btl_vader_single_copy_mechanism none' helps > indeed. > >

Re: [OMPI users] How is the rank determined (Open MPI and Podman)

2019-07-25 Thread Adrian Reber via users
Adrian > >> > >>>> and rc is always set to -13. Is this how it is supposed to work, or do I > >>>> have to do it differently? > >>>> > >>>> Adrian > >>>> > >>>> On Mon, Jul

Re: [OMPI users] How is the rank determined (Open MPI and Podman)

2019-07-22 Thread Adrian Reber via users
the best > performance. > > -Nathan > > > On Jul 21, 2019, at 2:53 PM, Adrian Reber via users > > wrote: > > > > For completeness I am mentioning my results also here. > > > > To be able to mount file systems in the container it can only work

Re: [OMPI users] How is the rank determined (Open MPI and Podman)

2019-07-22 Thread Adrian Reber via users
gt; > > An option is to involve the modex. > > > > each task would OPAL_MODEX_SEND() its own namespace ID, and then > > OPAL_MODEX_RECV() > > > > the one from its peers and decide whether CMA support can be enabled. > > > > > > Chee