Multiple rollouts per prompt

[yhtang]

RolloutConfig.n doesn't seem to be used by VanillaRollout.generate(), and the latter appears to be always returning a single response for a given prompt. Is this the correct understanding? If so, what's the expected behavior for multiple rollouts, in terms of the response schema?

[tianshub]

@yhtang RolloutConfig.n will be used for vLLM. Vanilla sampler doesn't support it and requires manual repeating the rows in the batch.