[QE-users] Regarding error in epsilon.x file

2023-09-15 Thread Priyanka A J, Res. Associate, Dept. of Physics, IIT (BHU) via users
Dear Quantum Espresso users I have run epsilon.x after scf and non-scf calculations, I got error: "non-uniform kpoint grid". My input files are: CONTROL calculation = 'scf' etot_conv_thr = 4.00d-04 forc_conv_thr = 1.00d-04 outdir = './out/' prefix = 'aiida' pseudo_di

Re: [QE-users] Regarding error in epsilon.x file

2023-09-15 Thread Andrea Ferretti
Dear Priyanka, in order to have a complete uniform sampling of the BZ (which does not require symmetry, not implemented in epsilon.x), you need to specify, e.g., nosym=.true. noinv=.ture. in the system namelist of the last pw calculation that you run before epsilon.x hope it helps Andrea

[QE-users] Query Regarding Car-Parrinello Molecular Dynamics Convergence

2023-09-15 Thread Vinay Maithani
Dear Quantum Espresso Community, I am currently working on CPMD calculations. After running vc-cp (NPT) for 135 picoseconds (ps), (I have attached the image for reference) I have observed that although the potential energy of the system Etot (E_DFT) and econs (E_DFT + K_NUCLEI) are not converging

Re: [QE-users] SCAN Functional not recognized in DOS.x

2023-09-15 Thread Fabrizio Ferrari Ruffino
Hello, this is a combination of dfts rarely used with QE and whose choice has been enabled fairly recently. However it should be possible to use it in PP runs too. For some reasons in PP runs such as dos.x, a functional with a VV10 term, when detected, is converted in its standard form (the one y