[BugFix] Fix min_tokens when eos_token_id is None
#4389
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Co-authored-by: DefTruth <31974251+deftruth@users.noreply.github.com>
simon-mo
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Apr 26, 2024
simon-mo
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Apr 26, 2024
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| for j, seq_id in enumerate(seq_ids): | ||
| seq_data = sampling_metadata.seq_data[seq_id] | ||
| if len(seq_data.output_token_ids) < min_tokens: | ||
| seqs_to_penalize.append(i) | ||
| seqs_to_penalize.append(j) | ||
|
|
||
| if seqs_to_penalize: | ||
| # convert to the index into logits | ||
| seqs_to_penalize = [start_idx + i for i in seqs_to_penalize] | ||
| # use set() to remove any duplicates | ||
| token_ids_to_penalize = set(sampling_params.stop_token_ids + | ||
| [sampling_params.eos_token_id]) | ||
| seqs_to_penalize = [start_idx + j for j in seqs_to_penalize] |
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wait I don't understand the both i -> j here
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@simon-mo there is an outer loop over the sequence groups enumerated with index i and within that two separate loops that now each use index j (well this one is actually a comprehension)
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We could change this one to k just to be clearer? but they don't overlap so I think it's ok like this too...
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@simon-mo let me know if you're good with this, I think this is ready to merge if so!
DefTruth
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Apr 26, 2024
DefTruth
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Apr 26, 2024
…_eos_token # Conflicts: # vllm/model_executor/layers/sampler.py
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Fixes #4365
Also fix re-use of index variable
iwithin inner loop.