The PVM_Wrapper library can be used in place of PVM on a parallel computer with MPI-1. It will wrap the PVM calls with MPI calls, and permit applications that have PVM's initSend, pack, send paradigm to be used with MPI but without having to rewrite the application. However, the performance will not be as high as if the application was rewritten to use MPI.

The library assumes a lowercase_ scheme for C calling Fortran. Other schemes could be easily handled by user modification of the fpvm3.c file.