019 at 1:55 AM
To: "users@lists.open-mpi.org"
Cc: Brice Goglin , Ludovic Courtès
Subject: [OMPI users] disabling ucx over omnipath
Hello
We have a platform with an old MLX4 partition and another OPA partition.
We want a single OMPI installation working for both kinds of nodes.
Hello
We have a platform with an old MLX4 partition and another OPA partition.
We want a single OMPI installation working for both kinds of nodes. When
we enable UCX in OMPI for MLX4, UCX ends up being used on the OPA
partition too, and the performance is poor (3GB/s instead of 10). The
problem se
