NAME
      mpif90 -  Compiles and links MPI programs written in Fortran 90

 DESCRIPTION
      This command can be used to compile and link MPI programs written in
      Fortran 90.  It provides the options and any special libraries that
      are needed to compile and link MPI programs.

      This command is still under development, as is support in MPICH for
      Fortran 90.

      It is important to use this command (or a Makefile processed with
      mpireconfig ) particularly when linking programs, as it provides the
      necessary libraries.  It can also simplify the use of the MPE
      profiling libraries, through the use of the -mpilog , -mpitrace , and
      -mpianim commands.


 COMMAND LINE ARGUMENTS
      -mpilog
           - Build version that generate MPE log files
      -mpitrace
           - Build version that generates traces
      -mpianim
           - Build version that generates real-time animation
      -show
           - Show the commands that would be used without runnning them
      -help
           - Give short help
      -echo
           - Show exactly what this program is doing.  This option should
           normally not be used.
      others
           - are passed to the compiler or linker.  For example, -c causes
           files to be compiled, -g selects compilation with debugging on
           most systems, and -o name causes linking with the output
           executable given the name name .



 ENVIRONMENT VARIABLES
      The environment variables MPICH_F90 and MPICH_F90LINKER may be used to
      select different Fortran compiler and linker.  Note that since MPICH
      is built with a particular C and Fortran compiler, change the
      compilers used can cause problems.  Use this only if you could
      intermix code compiled with the different compilers.


 EXAMPLES



      To compile a single file foo.f , use
      mpif90 -c foo.f


      To link the output and make an executable, use
      mpif90 -o foo foo.o

      Combining compilation and linking in a single command
      mpif90 -o foo foo.f

      is a convenient way to build simple programs.


 SEE ALSO
      mpicc, mpif77, mpiCC, mpireconfig

 LOCATION
      /home/MPI/mansrc/commands