OpenMPI 4 and NVHPC MPI Compatibility Issues with SLURM HWLOC
A pure MPI application using mpirun or mpiexec with more ranks than the number of NUMA nodes may encounter an error similar to the following:
Ascend
Handling full-node MPI warnings with MVAPICH 3.0
When running a full-node MPI job with MVAPICH 3.0 , you may encounter the following warning message:
HWloc warning: Failed with: intersection without inclusion
When running MPI+OpenMP hybrid code with the Intel Classic Compiler and MVAPICH 3.0, you may encounter the following warning message from hwloc:
