Naser, Md Abu wrote: > Hi All, > I have newley installed the lam/mpi and gromacs. When I run mpirun -np 8 mdrun_mpi -s .tpr -o .trr -np 8, it gives the following error: > > mpirun: cannot start mdrun_mpi on n1: No such file or directory Is mdrun_mpi on the path and accessible from n1? Mark