Add command-line switches for different MPI environments
Adds the following command line options to configure
- MPICH. path is the location of MPICH commands
- IBM MPI
- SGI MPI
If no type is selected, and a default ("mpich", "ibmmpi", or "sgimpi")
is given, that type is used as if --with-<default> was given.
Sets CC, F77, TESTCC, TESTF77, and MPILIBNAME. Does not
perform an AC_SUBST for these values.
Also sets MPIBOOT and MPIUNBOOT. These are used to specify
programs that may need to be run before and after running MPI programs.
For example, MPIBOOT may start demons necessary to run MPI programs and
MPIUNBOOT will stop those demons.