HI I am doing Parallel Discrete event simulation based on multicore computers using optimistic synchronization and message passing Interface (MPI) libraray along with C++ . I am facing problem to interface C++ & MPI. Please guide me to sort out my problem. M.G.Ahmed Manzoor G. Ahmed I/C HOD ELectronics Department mob:9881641949 Dr. N.P.Hirani Institue of Polytechnic, Pusad ,dist. Yavatmal (M.S,)