On Friday 26 December 2008 04:48, Jiaye, Li wrote: > I tried like this: mpirun -np 2 ~/bin/pp.x input.inp output.out you should have tried like this: mpirun -np 2 ~/bin/pp.x < input.inp or mpirun -np 2 ~/bin/pp.x -in input.inp Paolo -- Paolo Giannozzi, Democritos and Udine University