Update README.md

README.md

@@ -69,6 +69,26 @@ for more details, an re-download the correct version of the validation sets if n
 | rattled-relax    | 95,206 | [rattled-relax.tar.gz](https://dl.fbaipublicfiles.com/opencatalystproject/data/omat/241220/omat/val/rattled-relax.tar.gz)     |
 | Total    | 1,025,361 | -     |
 
+##### <ins> 1M Subsplit </ins>
+We provide a 1M training randomly subsampled split, and the corresponding validation and test so that it is easier to iterate and develop before training on the full dataset.
+
+Download: [omat24_1M](https://dl.fbaipublicfiles.com/opencatalystproject/data/omat/251210/omat24_1M_251210.tar.gz)
+
+| Train sub-dataset | Size |
+| :-----: | :--: |
+| rattled-1000    | 113,337 |
+| rattled-1000-subsampled   | 38,603 | 
+| rattled-500    | 68,885 | 
+| rattled-500-subsampled    | 39,548 |
+| rattled-300    | 62,894 | 
+| rattled-300-subsampled    | 34,462 |
+| aimd-from-PBE-1000-npt    | 211,578 |
+| aimd-from-PBE-1000-nvt    | 201,512 |
+| aimd-from-PBE-3000-npt    | 60,477 |
+| aimd-from-PBE-3000-nvt    | 78,011 |
+| rattled-relax    | 100,543 |
+| Total    | 1,009,850 |
+
 ### sAlex Dataset
 We also provide the sAlex dataset used for fine-tuning of our OMat models. sAlex is a subsampled, Matbench-Discovery compliant, version of the original [Alexandria](https://alexandria.icams.rub.de/).
 sAlex was created by removing structures matched in WBM and only sampling structure along a trajectory with an energy difference greater than 10 meV/atom. For full details,