Fortran Support

Sun MPI 4.0 provides basic Fortran support, as described in section 10.2 of the MPI-2 standard. Essentially, Fortran bindings and an mpif.h file are provided, as specified in the MPI-1 standard. The mpif.h file is valid for both fixed- and free-source form, as specified in the MPI-2 standard.

The MPI interface is known to violate the Fortran standard in several ways, which cause few problems for Fortran 77 programs. These standard violations can cause more significant problems for Fortran 90 programs, however, if you do not follow the guidelines recommended in the standard. If you are programming in Fortran, and particularly if you are using Fortran 90, you should consult section 10.2 of the MPI-2 standard for detailed information about basic Fortran support in an MPI implementation.