[dask] Fix LTR with empty partition and NCCL error. #13991
| Job | Run time |
|---|---|
| 14m 20s | |
| 14m 20s | |
| 3m 13s | |
| 3m 13s | |
| 10m 42s | |
| 10m 42s | |
| 10m 45s | |
| 10m 45s | |
| 10m 47s | |
| 10m 47s | |
| 13m 46s | |
| 13m 46s | |
| 3m 5s | |
| 3m 5s | |
| 1s | |
| 3m 19s | |
| 6m 45s | |
| 6m 45s | |
| 14m 11s | |
| 14m 11s | |
| 18m 12s | |
| 18m 12s | |
| 1m 24s | |
| 1m 24s | |
| 4m 15s | |
| 4m 15s | |
| 4m 20s | |
| 4m 20s | |
| 2m 28s | |
| 2m 28s | |
| 3h 59m 46s |