Starting with mpi-default-dev 0.3, the package provides the file
/usr/share/mpi-defaults/debian-defaults that defines the variable
ARCH_DEFAULT_MPI_IMPL which contains the source package name of the
default MPI implementation defined for that architecture.

Developers can use it in their debian/rules files to implement special
behavior depending on the MPI implementation. It can be used like this

include /usr/share/mpi-default-dev/debian_defaults
ifneq (,$(findstring $(ARCH_DEFAULT_MPI_IMPL),openmpi))
...
endif

to special-case Open MPI.

If there is more information for mpi-defaults to provide to developers,
please report a wishlist bug to mpi-defaults.

 -- Manuel Prinz <manuel@debian.org>  Sat, 14 Mar 2009 14:50:39 +0100
