Oh yeah. I know that error. This is due to a long standing issue with Intel on macOS and Open MPI:
https://github.com/open-mpi/ompi/issues/7615 You need to configure Open MPI with "lt_cv_ld_force_load=no" at the beginning. (You can see an example at the top of my modulefile here: https://github.com/mathomp4/parcelmodulefiles/blob/main/Compiler/intel-clang-2022.0.0/openmpi/4.1.2.lua ) Matt On Thu, Dec 30, 2021 at 5:47 AM Christophe Peyret via users < users@lists.open-mpi.org> wrote: > Hello, > > I have built openmpi-4.1.2 with latest intel oneapi compilers, including > fortran > > but I am facing problems at compilation: > > > *mpif90 toto.f90* > > Undefined symbols for architecture x86_64: > > "_ompi_buffer_detach_f08", referenced from: > > import-atom in libmpi_usempif08.dylib > > ld: symbol(s) not found for architecture x86_64 > > library libmpi_usempif08.dylib is present in $MPI_DIR/lib > > > *mpif90 -showme > > > * > > ifort -I/Users/chris/Applications/Intel/openmpi-4.1.2/include > -Wl,-flat_namespace -Wl,-commons,use_dylibs > -I/Users/chris/Applications/Intel/openmpi-4.1.2/lib > -L/Users/chris/Applications/Intel/openmpi-4.1.2/lib -lmpi_usempif08 > -lmpi_usempi_ignore_tkr -lmpi_mpifh -lmpi > > > if I remove -lmpi_usempif08 from that command line it works ! > > *ifort -I/Users/chris/Applications/Intel/openmpi-4.1.2/include > -Wl,-flat_namespace -Wl,-commons,use_dylibs > -I/Users/chris/Applications/Intel/openmpi-4.1.2/lib > -L/Users/chris/Applications/Intel/openmpi-4.1.2/lib > -lmpi_usempi_ignore_tkr -lmpi_mpifh -lmpi toto.f90* > > > And program runs: > > *mpirun -n 4 a.out* > > rank=2/4 > > rank=3/4 > > rank=0/4 > > rank=1/4 > > > Annexe the Program > > program toto > > use mpi > > implicit none > > integer :: i > > integer :: comm,rank,size,ierror > > call mpi_init(ierror) > > comm=MPI_COMM_WORLD > > call mpi_comm_rank(comm, rank, ierror) > > call mpi_comm_size(comm, size, ierror) > > print '("rank=",i0,"/",i0)',rank,size > > call mpi_finalize(ierror) > > end program toto > > > -- > > *Christophe Peyret* > > *ONERA/DAAA/NFLU* > > 29 ave de la Division Leclerc > F92322 Châtillon Cedex > > -- Matt Thompson “The fact is, this is about us identifying what we do best and finding more ways of doing less of it better” -- Director of Better Anna Rampton
