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On Sep 20, 2007, at 7:49 AM, Tim Prins wrote:
> This is because Open MPI is finding gcc for the C compiler and
> ifort for
> the Fortran compiler.
Just to be clear: it is possible to build OpenMPI using ifort for
Fortran and gcc for the C compiler on at least Linux. I have done
that on several Linux systems for many releases of OpenMPI, but have
not tried on OS X. On OS X I have been using g95.
For reference below is my build commands for Linux with ifort:
./configure F77=ifort FC=ifort --with-mpi-f90-size=small ; make all
For reference below is my build commands OS X with g95:
./configure F77=g95 FC=g95 LDFLAGS=-lSystemStubs --with-mpi-f90-
size=small ; make all
I'm not aware if special flags are needed with ifort on OS X, but -
ISystemStubs is required for g95 and might be for ifort as well on OS X.