diff options
Diffstat (limited to 'gnu/packages')
| -rw-r--r-- | gnu/packages/mpi.scm | 2 | ||||
| -rw-r--r-- | gnu/packages/patches/openmpi-mtl-priorities.patch (renamed from gnu/packages/patches/openmpi-psm2-priority.patch) | 14 |
2 files changed, 15 insertions, 1 deletions
diff --git a/gnu/packages/mpi.scm b/gnu/packages/mpi.scm index 9f6597c6b3..45941df0b0 100644 --- a/gnu/packages/mpi.scm +++ b/gnu/packages/mpi.scm @@ -179,7 +179,7 @@ bind processes, and much more.") "/downloads/openmpi-" version ".tar.bz2")) (sha256 (base32 "0ms0zvyxyy3pnx9qwib6zaljyp2b3ixny64xvq3czv3jpr8zf2wh")) - (patches (search-patches "openmpi-psm2-priority.patch")))) + (patches (search-patches "openmpi-mtl-priorities.patch")))) (build-system gnu-build-system) (inputs `(("hwloc" ,hwloc-2 "lib") diff --git a/gnu/packages/patches/openmpi-psm2-priority.patch b/gnu/packages/patches/openmpi-mtl-priorities.patch index d9dd558010..fd76594ddd 100644 --- a/gnu/packages/patches/openmpi-psm2-priority.patch +++ b/gnu/packages/patches/openmpi-mtl-priorities.patch @@ -19,3 +19,17 @@ See <https://www.mail-archive.com/users@lists.open-mpi.org/msg33581.html>. "priority", "Priority of the PSM2 MTL component", MCA_BASE_VAR_TYPE_INT, NULL, 0, 0, +Likewise for PSM: we want InfiniPath to be taken care of by PSM, not by UCX, +since UCX achieves worse performance. + +--- openmpi-4.0.2/ompi/mca/mtl/psm/mtl_psm_component.c ++++ openmpi-4.0.2/ompi/mca/mtl/psm/mtl_psm_component.c +@@ -92,7 +92,7 @@ ompi_mtl_psm_component_register(void) + + + /* set priority high enough to beat ob1's default */ +- param_priority = 30; ++ param_priority = 54; + (void) mca_base_component_var_register (&mca_mtl_psm_component.super.mtl_version, + "priority", "Priority of the PSM MTL component", + MCA_BASE_VAR_TYPE_INT, NULL, 0, 0, |