I observe this crash during MPI_Finalize in an ARMCI-MPI unit test (test_malloc) that was not failing until I switched to using OFI-based MPICH on my Mac laptop. Any suggestions on how to debug? Jeff Abort(806972175) on node 0 (rank 0 in comm 0): Fatal error in MPI_Finalize: Other MPI error, error stack: MPI_Finalize(317)..........: MPI_Finalize failed MPI_Finalize(239)..........: MPID_Finalize(318).........: MPIDI_NM_mpi_init_hook(948): OFI av close failed (ofi_init.h:948:MPIDI_NM_mpi_init_hook:Resource busy) Abort(806972175) on node 1 (rank 1 in comm 0): Fatal error in MPI_Finalize: Other MPI error, error stack: MPI_Finalize(317)..........: MPI_Finalize failed MPI_Finalize(239)..........: MPID_Finalize(318).........: MPIDI_NM_mpi_init_hook(948): OFI av close failed (ofi_init.h:948:MPIDI_NM_mpi_init_hook:Resource busy) $ mpicc -show icc -g -Wl,-commons,use_dylibs -I/opt/mpich/dev/intel/default/include -L/opt/mpich/dev/intel/default/lib -lmpi -lpmpi $ mpichversion MPICH Version: 3.3a2 MPICH Release date: unreleased development copy MPICH Device: ch4:ofi MPICH configure: CC=icc CXX=icpc FC=ifort F77=ifort --enable-cxx --enable-fortran --enable-threads=runtime --enable-g=dbg --with-pm=hydra --prefix=/opt/mpich/dev/intel/default --enable-wrapper-rpath --enable-two-level-namespace --disable-static --enable-shared --with-device=ch4:ofi --with-libfabric=/usr/local/Cellar/libfabric/1.4.1 MPICH CC: icc -g -O2 MPICH CXX: icpc -g MPICH F77: ifort -g -O2 MPICH FC: ifort -g -O2 MPICH Custom Information: -- Jeff Hammond [email protected] http://jeffhammond.github.io/ _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss