[QE-users] [SPAM] Re: AW: AW: Fourier Transform of Local Pseudopotential and G=0 limit

2024-09-09 Thread Paolo Giannozzi
On 09/09/2024 14:49, erik.schulth...@dlr.de wrote: But, similarly, why would one calculate the G=0 limit of V(r) + Z erf(r)/r? One would not: it is useless. The correct G=0 limit is computed instead This comment in the source code ... is just a reminder of what I just wrote, in case one is

[QE-users] parallel parameter in qe

2024-09-09 Thread Marin via users
Dear all, I'm currently trying to calculate the 'scf' of a supercell with 100 atom using the k-points of 2*2*1. My CPU is single node, 36 cores with a dual channel configuration, and the memory capacity is sufficiently ample. How should I set the parallel parameters for submitting tasks to save t

Re: [QE-users] Convergence issue in relaxation calculation

2024-09-09 Thread Bhargab Kakati
On 2024-09-08 01:32, Bhargab Kakati wrote: Dear Omar A. Ashour, Thank you so much for your detailed guidance to tackle the issue. I will take a step back and re-implement the input parameters as per your suggestions and try to run the calculation again. Regards, Bhargab On 8 Sept 2024 1:20 am,

[QE-users] [SPAM] AW: AW: Fourier Transform of Local Pseudopotential and G=0 limit

2024-09-09 Thread Erik Schultheis via users
Hi Paolo, Hi everyone, I have a follow-up question about the G=0 limit of the local pseudopotential. You wrote: > 2. The local potential V(r) behaves as -Ze^2/r for large r, making direct > computation of V(G) problematic. One removes the long-range behavior by > adding to V(r) a function f(r)=Z