Created by: zycalice
Patch Description previous test_save_checkpoint.py had to test sync saving; this test_save_checkpoint_async.py test checkpoint saving async while saving directly to local (does not skip the async logic) related to issue https://github.com/facebookresearch/metaseq/issues/516
Testing steps $ python metaseq/gpu_tests/test_checkpoint_saving_async.py Ran 1 test in 48.639s
OK