I have a code using MPI_THREAD_MULTIPLE along with MPI-RMA that I'm
using OpenMPI 4.0.1. Since 4.0.1 requires UCX I have it installed with
MT on (1.6.0 build). The thing is that the code keeps stalling out when
I go above a couple of nodes. UCX is new to our environment as
previously we have
Adding the UCX list to this thread.
On Fri, Aug 23, 2019 at 7:35 PM Paul Edmon via users <
users@lists.open-mpi.org> wrote:
> I have a code using MPI_THREAD_MULTIPLE along with MPI-RMA that I'm
> using OpenMPI 4.0.1. Since 4.0.1 requires UCX I have it installed with
> MT on (1.6.0 build). The
Paul,
Can you provide a repro and command line, please. Also, what network
hardware are you using?
Josh
On Fri, Aug 23, 2019 at 3:35 PM Paul Edmon via users <
users@lists.open-mpi.org> wrote:
> I have a code using MPI_THREAD_MULTIPLE along with MPI-RMA that I'm
> using OpenMPI 4.0.1. Since 4.0
Sure. The code I'm using is the latest version of Wombat
(https://bitbucket.org/pmendygral/wombat-public/wiki/Home , I'm using an
unreleased updated version as I know the devs). I'm using
OMP_THREAD_NUM=12 and the command line is:
mpirun -np 16 --hostfile hosts ./wombat
Where the host file
I forgot to include that we have not rebuilt this OpenMPI 4.0.1 against
1.6.0 of UCX but rather 1.5.1. When we upgraded to 1.6.0 everything
seemed to be working for OpenMPI when we swapped the UCX version with
out recompiling (at least in normal rank level MPI as we had to do the
upgrade to UC
