what do you mean by “restart sampling”?
- continue adaptation? in which case, initializing with stepsize and mass matrix should work.
- get more samples? initializing with stepsize and mass matrix, no_warmup, will produce more samples. but there’s a problem in that we don’t save the state of the RNG - the seed + chain_id is the initial offset, but then during a run, we record how many times it’s called. to properly continue, one would need to know both the seed and how far to advance the RNG.