Creating my own ML_AB file for MLFF

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


Moderators: Global Moderator, Moderator

Post Reply
Message
Author
melissa_sanseverino
Newbie
Newbie
Posts: 3
Joined: Wed Jul 03, 2024 2:23 pm

Creating my own ML_AB file for MLFF

#1 Post by melissa_sanseverino » Thu Jul 04, 2024 10:13 pm

Hello!
I have been trying to use MLFF to find a potential energy surface for a system using previous ab initio MD calculations. I have taken the data from my previous calculations and compiled them into a new ML_AB file. I directly followed the instructions on VASP wiki on how to format this file and everything but I keep getting errors when I try to run these calculations. Please let me know if there is something wrong with my ML_AB file or what the issue might be in general.
Thank you in advance!
You do not have the required permissions to view the files attached to this post.

alexey.tal
Global Moderator
Global Moderator
Posts: 314
Joined: Mon Sep 13, 2021 12:45 pm

Re: Creating my own ML_AB file for MLFF

#2 Post by alexey.tal » Fri Jul 05, 2024 11:12 am

Hello,

I see that there is a number of problems in your ML_AB file.
- The maximum number of atoms per atom type section is missing in the header of your ML_AB
- The number of atom types is not correct in line 63, should be 5
- The number of atoms section is missing in the first configuration
- In Atom types and atom numbers the total number of 48 atoms is specified. In positions and forces only 41 atom is provided.

Please carefully check that your ML_AB file is consistent with the structure described on the wiki.

melissa_sanseverino
Newbie
Newbie
Posts: 3
Joined: Wed Jul 03, 2024 2:23 pm

Re: Creating my own ML_AB file for MLFF

#3 Post by melissa_sanseverino » Fri Jul 05, 2024 5:19 pm

Thank you so much for your help!
I have corrected all of the things you pointed out and rechecked my ML_AB file. I even asked chatgpt to find any errors in my ML_AB file that wouldn't line up with the one provided in VASP wiki and it came up empty. Unfortunately, the calculations still would not run and I am wondering what I am doing wrong.
Thank you in advance!
You do not have the required permissions to view the files attached to this post.
Last edited by melissa_sanseverino on Fri Jul 05, 2024 6:24 pm, edited 1 time in total.

melissa_sanseverino
Newbie
Newbie
Posts: 3
Joined: Wed Jul 03, 2024 2:23 pm

Re: Creating my own ML_AB file for MLFF

#4 Post by melissa_sanseverino » Sat Jul 06, 2024 4:30 pm

So sorry I posted the wrong zip file in the first reply. Attached is the correct zip file.
You do not have the required permissions to view the files attached to this post.
Last edited by melissa_sanseverino on Sat Jul 06, 2024 4:52 pm, edited 1 time in total.

alexey.tal
Global Moderator
Global Moderator
Posts: 314
Joined: Mon Sep 13, 2021 12:45 pm

Re: Creating my own ML_AB file for MLFF

#5 Post by alexey.tal » Mon Jul 08, 2024 9:57 am

You missed The number of atoms in the configurations #120-134.

melissa_sanseverino
Newbie
Newbie
Posts: 3
Joined: Wed Jul 03, 2024 2:23 pm

Re: Creating my own ML_AB file for MLFF

#6 Post by melissa_sanseverino » Mon Jul 08, 2024 1:48 pm

Thank you so much!

Post Reply