You seem to be mixing MPICH and a different MPI implementation (probably Open MPI). From: vinod pandey <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Thursday, October 22, 2015 at 2:30 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [mpich-discuss] problem after compilation I am getting the below message after compilation /usr/bin/ld: warning: libmpi.so.1, needed by /usr//lib/libmpi_f77.so, may conflict with libmpi.so.12 Kindly help. -- ............. VINOD PANDEY _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss