[Pw_forum] definition of bare potential

2015-05-31 Thread Meysam Pazoki
Dear Espresso Users, I have a question regarding the definition of bare ionic potential, In the PP.x when we calculate the bare potential, is it just the contribution of columbic potential of positively charged ion centers ? or core electrons that are included in the psudopotential also have co

Re: [Pw_forum] Fw: SV: SV: SV: cif2cell enquiry TO MKONDRIN ( one file enclosed )

2015-05-31 Thread Nicola Marzari
Dear Manuel, Torbjörn is saying exactly the same thing I said, re fractional translations etc... In my opiinion, f you want to get exactly zero forces on the atoms that should have zero forces, monitor them as a function of k-point sampling. Ss you increase the k-points, the ground state cha

Re: [Pw_forum] Why the same input file resulted in differnt output results on different computers?

2015-05-31 Thread Lorenzo Paulatto
Dear Yin Li, we do not have your computers so we cannnto reproduce your problem. What we could do is that you pay to us all a trip to Budapest, to have a look. Or you could just provide the output files. kind regards On 30/05/15 22:47, liyinc...@gmail.com wrote: Dear QE developers, I found