Fix yolov3 model training to original batch size (#630)
Summary:
This PR improves the quality of yolov3 model.
- Use the original train batch size of 16 (https://github.com/ultralytics/yolov3/blob/master/train.py#L447)
- Increase eval size to 32 to saturate GPU
- Package input files to a single `coco128.tar.gz` file and manage it with Git LFS
- Disable logs that are not used
Train profile:
Eval profile:
Pull Request resolved: https://github.com/pytorch/benchmark/pull/630
Reviewed By: aaronenyeshi
Differential Revision: D33032976
Pulled By: xuzhao9
fbshipit-source-id: dcb0a7b216ea2d4707022430580ebf75ac668a0f
