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Add MatterSim, Allegro and OCP models (fairchem-core) to ase_calculators #1079

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@janosh janosh commented Dec 7, 2024

MatterSim does very well on the new thermal conductivity modeling task ($\kappa_{\rm{SRME}} = 0.554$, see MPA2suite/k_SRME#12, thanks @AntObi), almost as good as the current SOTA GRACE ($\kappa_{\rm{SRME}} = 0.525$, see https://matbench-discovery.materialsproject.org).

the small (1M) model interestingly does better than the large (5M) one, which is a good sign that $\kappa_\rm{SRME}$ could prove more robust to overfitting

Screenshot 2024-12-07 at 14 28 05

either way, MatterSim seems like a useful addition to the set of supported ASE calculators in atomate2, hence this PR.

adding Allegro and OCPCalculator as well since I've been using them with my local fork for a while

@janosh janosh added enhancement Improvements to existing features forcefields Forcefield related labels Dec 7, 2024
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