// printf("\n Sender rank %llu global dest rank %d dest-rank %d bytes %d Tag %d", s->nw_id, global_dest_rank, mpi_op->u.send.dest_rank, mpi_op->u.send.num_bytes, mpi_op->u.send.tag);
if(lp->gid==TRACK_LP)
printf("\n Sender rank %llu global dest rank %d dest-rank %d bytes %lld Tag %d",s->nw_id,global_dest_rank,mpi_op->u.send.dest_rank,mpi_op->u.send.num_bytes,mpi_op->u.send.tag);