Describe the bug

Using interleave_datasets with multiple dataloader workers and a seed set causes the same dataset sampling order across all workers.

Should the seed be modulated with the worker id?

Steps to reproduce the bug

See above

Expected behavior

See above

Environment info

• datasets version: 3.5.1
• Platform: macOS-15.4.1-arm64-arm-64bit
• Python version: 3.12.9
• huggingface_hub version: 0.30.2
• PyArrow version: 19.0.1
• Pandas version: 2.2.3
• fsspec version: 2024.12.0