On Fri, 2014-03-21 at 17:17 +0800, 薛诗川 wrote: > i am totally confused? You, I hope not. Your question is totally confused. > is the test machine's performance so good? no, it is a normal PC P. -- Paolo Giannozzi, Dept. Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222