Re: [QE-users] seeking hints for nscf convergence in supercell

2021-10-19 Thread Giuseppe Mattioli
I'll follow your indications and, if the case, I'll feel free to phone you :D Feel free indeed! We must think and act "corporate" :-o :-D The answer to the first question is honestly no, I took ecutwfc to a colleague of mine (for simple cell, not supercell) This depends only on the

Re: [QE-users] seeking hints for nscf convergence in supercell

2021-10-19 Thread patrizio . graziosi
Hi Giuseppe, thanks a lot for your time and support! The answer to the first question is honestly no, I took ecutwfc to a colleague of mine (for simple cell, not supercell) and ecutrho for USPP from the qe indications, I'll work on this. For the sampling, the final purpose is transport

Re: [QE-users] seeking hints for nscf convergence in supercell

2021-10-19 Thread Giuseppe Mattioli
Dear Patrizio Are you sure you need ecutwfc=100 Ry and ecutrho=12*ecutwfc to converge US pseudopotentials? Have you performed convergence tests on simple systems or flicked through sssp tables (I see 30/240 for pslibrary US Mg and 40/320 for gbrv US Sb...)? However, for your nscf step you

[QE-users] seeking hints for nscf convergence in supercell

2021-10-19 Thread patrizio . graziosi
Hello everybody, I'm seeking advice to fasten nscf convergence (or make it possible). I'm using qe 6.8 to study Mg3Sb2 / Mg3Bi2 solid solutions, as first step I'm starting with a Mg3Sb2 2x2x2 supercell (40 atoms) to compare with simple Mg3Sb2 cell (5 atoms). The calculation track is scf