System: Prune old checkpoint folder checkpoint-800 to save space

FastPlus125m Backup checkpoint-1200 at global step 1200

System: Prune old checkpoint folder checkpoint-600 to save space

FastPlus125m Backup checkpoint-1000 at global step 1000

System: Prune old checkpoint folder checkpoint-400 to save space

FastPlus125m Backup checkpoint-800 at global step 800

System: Prune old checkpoint folder checkpoint-200 to save space

FastPlus125m Backup checkpoint-600 at global step 600

FastPlus125m Backup checkpoint-400 at global step 400

FastPlus125m Backup checkpoint-200 at global step 200

initial commit