Dear everyone, I apologize in advance for coming back with a common issue again.
Differently from other threads though, I was able to configure, make and make install openMPI on my macbook 10.5. What I used was the fowlling configure call: ./configure --prefix=/usr/local --enable-mpi-f77 --enable-mpi-f90 F77=ifort FC=ifort FFLAGS="-m32 -std=legacy" --with-wrapper-fflags="-m32 -std=legacy" --with-mpi-f90-size=medium --enable-mpirun-prefix-by-default FCFLAGS="-m32" --with-wrapper-fcflags="-m32" make sudo make install When I verify if the compilation occurred correctly as in being supporting Fortran, by running /usr/local/bin/ompi_info I correctly obtain: Fortran77 bindings: yes (single underscore) Fortran90 bindings: yes The PROBLEM comes now: when I try to run mpif90 or mpif77 I still get the error: "Unfortunately, this installation of Open MPI was not compiled with Fortran 90 support. As such, the mpif90 compiler is non-functional." Woudl anyone be able to help me understand this ? I would really appreciate your support Thank you in advance S.M.