On Jun 20, 2011, at 2:56 , GAO Zhe wrote: > $MPIBIN/mpirun -n 6 q2r.x -npool 2 <A0.q2r.in >A0.q2r.out you should not run q2r on more than 1 processor P. --- Paolo Giannozzi, Dept of Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222