I'm sure that I'm not the first person who wants their MPI program to compile when MPI is not available. It seems like the simplest solution to this is to have a header file (with implementation, or header file and .c file) that implements all of the functions for the case when MPI isn't available on a system. I found something called MPI_STUBS via google, but some of the links are broken, and I've searched the archives. This seems like the kind of thing that tons of people have done for themselves, and I'm hoping to avoid doing it for myself.
Anybody have one they'd like to share? jgw -- John G. Wohlbier