Fix train batch size for pytorch_struct. (#591)
Summary:
Use the original batch size 200 for train.
Source: https://github.com/harvardnlp/pytorch-struct/blob/f4e374e894b94a9411fb3d2dfb44201a18e37b26/notebooks/Unsupervised_CFG.ipynb
Pull Request resolved: https://github.com/pytorch/benchmark/pull/591
Reviewed By: aaronenyeshi
Differential Revision: D32729606
Pulled By: xuzhao9
fbshipit-source-id: b65a3a29266e30c16d5d9e81356e441f2da030b2
