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HSE06 calculation doesn't start

Posted: Thu Dec 21, 2023 10:38 pm
by william_watson
Hi,

I am using the HSE06 hybrid functional on uranium mononitride bulk structure and the simulation hangs before the first electronic step - this doesn't change over a 24 hour period in the simulations that I have tested. I have attached all the input files as well as the OUTCAR and OSZICAR. I have no experience with hybrids (only GGAs and meta-GGAs) and I am still stuck even after reading the manual and other forum posts so your guidance would be greatly appreciated!

Thanks,

Will
UN_HSE06.zip

Re: HSE06 calculation doesn't start

Posted: Wed Dec 27, 2023 10:31 am
by pedro_melo
Dear william_watson,

I was able to start your calculation and run some SCF steps before it crashed using VASP 6.4.1. I am not sure at this point that this is due to the choice of functional and suspect that is related to the use of the Damped algorithm. I will look further into this issue, but meanwhile I suggest that you read about the NELMDL and Direct optimization, as these two seem very important for calculations involving metals.

Kind regards,
Pedro Melo