Ludovic Courtès <[email protected]> skribis: > $ guix time-machine --commit=23a5dcce1d893b8f5c5301ae3c1af863776ed3cf -- > environment --pure --ad-hoc openmpi openssh intel-mpi-benchmarks > --with-debug-info=rdma-core -- mpiexec -np 2 IMB-MPI1 PingPong
A workaround is to ask Open MPI to ignore the Verbs library with: mpiexec --mca btl ^openib … Ludo’.
