You can use:
./configure --enable-mca-no-build=btl-openib,pml-ucx,mtl-psm
That should probably do it in the 3.x and 4.x series.
You can double check after it installs: look in $prefix/lib/openmpi for any
files with "ucx", "openib", or "psm" in them. If they're there, remove them
(those are the IB plugins). You can further run "ompi_info" and look for
"ucx", "openib", and/or "psm" in the output (ompi_info shows all
currently-available plugins -- take from both plugins that were statically
compiled into Open MPI's libraries and from what's available in
$prefix/lib/openmpi [the latter is the default]). If ompi_info doesn't show
any output with "ucx", "openib", and/or "psm", then your Open MPI does not
contain any IB support.
--
Jeff Squyres
jsquy...@cisco.com
________________________________
From: users <users-boun...@lists.open-mpi.org> on behalf of Gestió Servidors
via users <users@lists.open-mpi.org>
Sent: Monday, December 12, 2022 10:38 AM
To: users@lists.open-mpi.org <users@lists.open-mpi.org>
Cc: Gestió Servidors <sysadmin.c...@uab.cat>
Subject: [OMPI users] Compile options to disable Infiniband
Hi,
I’m getting several errors and problems with an old OpenMPI installation.
Versions 3.1.5, 4.0.2 and 4.1.4 compiled with Infiniband support
(--with-verbs). I don’t know why, now that versions are failing with my OpenMPI
programs and, after running some tests and OMPI recompilations, I would like to
run a “clean” compilation with NO Infiniband support (in other words, I need to
be 100% sure that OpenMPI will NOT detect any Qlogic card/device as “ib0”)
because I only want to use my ethernet card “ethX”.
How are that compilation parameters in “configure” to disable Infiniband
support?
Thanks a lot!
