[QE-users] Number of cores and number of steps to convergence

2023-03-01 Thread Zack Gainsforth
Hi Folks,I installed a new i9-13900k and I was just curious to see how the P cores and E cores compared.  I did an SCF of a phyllosilicate using each and I find that it converges nicely in all cases but that the number of iterations to reach convergence is different.  I’m just curious why.Run on th

Re: [QE-users] I'm confused about how to use PBE0

2023-03-01 Thread Lorenzo Paulatto
Dear Malika, the Fock exchange (also known as exact exchange) included in PBE0 is very computationally intensive, it is unlikely that you'll be able to run it on a laptop. kind regards On 01/03/2023 22:30, Battal Malika wrote: Hello, I noticed that bandgap of ZnO is underestimated when usi

[QE-users] I'm confused about how to use PBE0

2023-03-01 Thread Battal Malika
Hello, I noticed that bandgap of ZnO is underestimated when using GGA. It seems like PBE0 is the most accurate methode in my case to find a value close to the experimental one. Neverthless I don't know how to use it and how much time i'll need to run it in a laptop with 8 processors. Can you ple

[QE-users] ibrav tag

2023-03-01 Thread Prarena Jamwal via users
Which value of ibrav we should use for a hexagonal system with slightly broken symmetry. Regards Prarena Research scholar, IIT Ropar -- **CONFIDENTIALITY NOTICE: The contents of this email message and any attachments are intended solely for the addressee(s) and may contain confidential and/o