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\uD83D\uDDD3 Date

24 Jul July 31 2023

\uD83D\uDC65 Participants

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\uD83D\uDDE3 Discussion topics

Notes

✅ Action items

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  • Trello review

    • MT – Added RMSD and ddE evaluation

    • MT – Working on using multiple FFs

    • MT – Haven’t yet started TFD calcs, that’s next

    • MT – Not yet ready for folks to try using

    • MT – Tried running the workflow on ~1600 mols. Graphs look really wonky - RMSDs up to 140, ddes in the hundreds

    • LM – The big ddEs seem like what I’d seen before - I saw ddes in the thousands because atom indexing got scrambled.

    • JW – Agree that ddE issue is probably atom indexing. I think the large RMSDs are probably a lack of superposition

    • MT + LW – OE RMSD call didn’t appear to be aligning. Also all of the value seemed to be 3 or higher, and I haven’t figured out why.

      • JW – If OE is acting funny, this could be worth switching to the RMSD code we used in the industry benchmarking project

  • LW – Will this be compared to the old benchmarking script?

    • MT – I think it’ll be really hard to get it to match - PB was probably using an old JSON file to load QCA datasets, so I’d need to adjust the inputs to work with that. But a rough statistical analysis of “these are close enough” could be right here.

  • BW – I was wondering what the old benchmarking workflow was like - How do things compare?

    • MT – It’s not the case that the old code didn’t work, but rather that it was disorganized and I was largely unaware of what it does, so this helps me learn what the fitting team is actually does.

    • Link to scripts:

      Github link macro
      linkhttps://github.com/openforcefield/openff-sage/tree/main/inputs-and-results/benchmarks

    • BW – No rush from my end - I’m waiting on FB runs

    • JW – In the future we may be able to make out fork of ForceBalance stabler/more performant, but it’ll need to be a multi-month effort.

    • LW – Until we have FB under our umbrella, it’ll be hard to push changes through.

    • BW – Yeah, I’d really like better error reporting. That’s a big problem for me.

      • LW – Agree

    • MT + JW – With Openff-forcebalance, I’ve removed lots of unnecessary stuff. Currently giving different numbers but MT estimates it could be fixable. Not a priority right now.