NEB calculations using MLFF

Queries about input and output files, running specific calculations, etc.


Moderators: Global Moderator, Moderator

Post Reply
Message
Author
melissa_sanseverino
Newbie
Newbie
Posts: 6
Joined: Wed Jul 03, 2024 2:23 pm

NEB calculations using MLFF

#1 Post by melissa_sanseverino » Tue Mar 25, 2025 5:23 pm

Hello! I am attempting to use a ML_FF file to perform NEB calculations. I am running into some issues because I am trying to make two pictures (I have 4 subdirectories) but the calculations are only being run for the first (01) image. I am wondering if something is wrong with my INCAR or if MLFF is not compatable witht this type of NEB calculation. I have attached the results form my run minus the ML_FF file that was in the directory and in each subdirectory. I have also removed the large output files (WAVECAR, CHGCAR) from the 01 subdirectory.
Thank you so much!

You do not have the required permissions to view the files attached to this post.

alex
Hero Member
Hero Member
Posts: 594
Joined: Tue Nov 16, 2004 2:21 pm
License Nr.: 5-67
Location: Germany

Re: NEB calculations using MLFF

#2 Post by alex » Wed Mar 26, 2025 11:58 am

Hello Melissa,

IBRION = 5 switches on numerical frequency analysis. So you'll not coming to the NEB part at all.

Cheers,

alex


melissa_sanseverino
Newbie
Newbie
Posts: 6
Joined: Wed Jul 03, 2024 2:23 pm

Re: NEB calculations using MLFF

#3 Post by melissa_sanseverino » Thu Mar 27, 2025 3:08 pm

Alex,
Thank you for the advice! I just changed the INCAR to IBRION =3 but the NEB calculation is still not running for in the subdirectory 02.

You do not have the required permissions to view the files attached to this post.

marie-therese.huebsch
Full Member
Full Member
Posts: 234
Joined: Tue Jan 19, 2021 12:01 am

Re: NEB calculations using MLFF

#4 Post by marie-therese.huebsch » Tue Apr 01, 2025 12:33 pm

Hello,

In principle, NEB works with MLFF. From the INCAR file you have provided, it seems you are using Transition State Tools for VASP which are provided by Henkelman group (and not by VASP).

We can offer help for the VASP internal implementation of nudge elestic bands, see the Wiki documentation or the tutorial. However for support for TST VASP please contact the Henkelman group.

Best regards,
Marie-Therese


Post Reply