# ElasticDistributedSampler

Source: https://www.tensorplay.cn/docs/generated/tensorplay.distributed.elastic.utils.data.ElasticDistributedSampler.html

```python
class tensorplay.distributed.elastic.utils.data.ElasticDistributedSampler(dataset, *, start_rank: int = 0, start_epoch: int = 0)
```

Sampler for elastic jobs where num_replicas may change per epoch.

Unlike a fixed-shard distributed sampler, this one derives the covered
range from the epoch number so restarting with a different world size
never skips or repeats data beyond the wrap-around tail.