Hello You say "It is expected to use UCX as the transport layer under openmpi and mpich". It is actually optional, OpenMPI works fine without UCX on non-Mellanox networks. Worse, UCX says it supports some networks such as OPA while its actual performance is very bad, people have to uninstall UCX in such cases, or reduce its component priority. Do you plan to make a hard dependency from OMPI to UCX?
Brice Le 04/06/2020 à 12:38, Alastair McKinstry a écrit : > Package: wnpp > Severity: wishlist > Owner: Alastair McKinstry <mckins...@debian.org> > > * Package name : ucx > Version : 1.8.0 > Upstream Author : Mellanox Ltd. <supp...@mellanox.com> > * URL : https://openucx.github.io/ucx/index > * License : BSD > Programming Lang: C > Description : A high performance communication library for HPC, AI, > Data analytics, and beyond > > Unified Communication X (UCX) provides an optimized communication layer for > Message Passing (MPI), PGAS/OpenSHMEM libraries and RPC/data-centric > applications. > . > UCX utilizes high-speed networks for inter-node communication, > and shared memory mechanisms for efficient intra-node communication. > . > It is expected to use UCX as the transport layer under openmpi and mpich > (already in Debian). > . > It will be maintained within the Debian Science team. >
