Commit fd12b140 authored by qbisi's avatar qbisi
Browse files

mpiCheckPhaseHook: use low-level env HWLOC_XMLFILE in all MPI implementations 

HWLOC_XMLFILE is lower-level than PRTE_MCA_hwloc_use_topo_file.
Setting PRTE_MCA_hwloc_use_topo_file require processes managed by prterun/mpiexec.
While setting HWLOC_XMLFILE will always work in sandbox environment.
This commit fix the annoying error message
    "[hwloc/linux] failed to find sysfs cpu topology directory, aborting linux discovery."
When running mpi4py related python tests not managed by mpiexec.
parent 8d74a87f

pkgs/by-name/mp/mpiCheckPhaseHook/mpi-check-hook.sh

+3 −1
Original line number Diff line number Diff line
@@ -55,7 +55,7 @@ setupMpiCheck() { 
      # The solution is to use a preset cpu topology file and disable ucx model.



      # Disable sysfs cpu topology directory discovery.

      export PRTE_MCA_hwloc_use_topo_file="@topology@"

      export HWLOC_XMLFILE="@topology@"

      # Use the network model ob1 instead of ucx.

      export OMPI_MCA_pml=ob1

      ;;
@@ -68,6 +68,8 @@ setupMpiCheck() { 
    MVAPICH)

      # Disable CPU pinning

      export MV2_ENABLE_AFFINITY=0

      # Disable sysfs cpu topology directory discovery.

      export HWLOC_XMLFILE="@topology@"

      ;;

  esac