<html>Dear all,<br /><br />I'am doing two consecutive scf calculations with exactly the same structure and parameters by calling qe6.5 as a library (attached output files).<br />For the second call, I use the options:<br />startingwfc='file' and input_rho ='rho.in'<br />where these inputs are the converged wfc1.dat and charge-density.dat of the first step.<br />Here I face two problems:<br /><br />-I expected that the initial scf accuracy is 10^-11 as obtained at the end of the first step, but it is only 10^-4.<br />How is it possible to explain such a decrease? I generally loose only 2 orders of magnitude by doing this.<br /><br />-Even with less scf iterations, the cpu time is greater.<br />Is it possible that some extra memory is allocated by qe when input rho and wfc are asked, and not desallocated?<br /><br />Note that until now, I have these troubles only when I use paw pseudopotentials on big systems.<br /><br />Regards,<br /><br />Antoine Jay<br />LAAS-CNRS<br />Toulouse France<br /><br /><br /><br /><br /><br /> </html>