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Bug fix for server crash if first token is the stop word and asking for logprobs #7038

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May 4, 2024
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Bug fix for server crash if first token is the stop word and asking for logprobs #7038

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3 changes: 2 additions & 1 deletion examples/server/server.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1383,9 +1383,10 @@ struct server_context {
if (!slot.params.stream && slot.stopped_word) {
const std::vector<llama_token> stop_word_toks = llama_tokenize(ctx, slot.stopping_word, false);

size_t safe_offset = std::min(slot.generated_token_probs.size(), stop_word_toks.size());
probs = std::vector<completion_token_output>(
slot.generated_token_probs.begin(),
slot.generated_token_probs.end() - stop_word_toks.size());
slot.generated_token_probs.end() - safe_offset);
} else {
probs = std::vector<completion_token_output>(
slot.generated_token_probs.begin(),
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