Validator works for start
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@@ -67,6 +67,7 @@ class Main:
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config.qwq_model,
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config.qwq_temperature,
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config.qwq_token_limit,
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self._action_schema,
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)
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if not self._llms:
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@@ -29,8 +29,6 @@ class QwQLlmEngine(LlmEngine):
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"""
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self._temperature = temperature
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self._token_limit = token_limit
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if xml_schema_text:
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self._logits_processor = XmlLogitsProcessor(self._tokenizer, xml_schema_text)
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with open('/root/sia/qwq_tokenizer_config.json', 'r') as f:
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tokenizer_config = json.load(f)
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@@ -62,6 +60,11 @@ class QwQLlmEngine(LlmEngine):
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return_full_text=False,
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)
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if xml_schema_text:
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self._logits_processor = XmlLogitsProcessor(self._tokenizer, xml_schema_text)
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else:
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self._logits_processor = None
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def infer(self, system_prompt: str, main_context: str, should_stop: Callable[[], bool] = lambda: False) -> Iterator[str]:
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"""
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@@ -100,7 +103,7 @@ class QwQLlmEngine(LlmEngine):
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}
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if self._logits_processor:
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generation_kwargs["logits_processor"] = self.logits_processor
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generation_kwargs["logits_processor"] = [self._logits_processor]
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generation_thread = Thread(
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target=self._pipline,
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@@ -20,7 +20,9 @@ class XmlLogitsProcessor(LogitsProcessor):
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"""
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self.tokenizer = tokenizer
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self.schema_validator = XmlSchemaValidator(schema_text)
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self.prompt_length = None
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self.is_first_call = True
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def __call__(self, input_ids: torch.LongTensor, scores: torch.FloatTensor) -> torch.FloatTensor:
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"""
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Process logits to mask invalid XML tokens.
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@@ -34,29 +36,48 @@ class XmlLogitsProcessor(LogitsProcessor):
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"""
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batch_size, _ = input_ids.shape
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# If this is the first call, store the prompt length
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if self.is_first_call:
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self.prompt_length = input_ids.shape[1]
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self.is_first_call = False
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# For each sequence in the batch
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for batch_idx in range(batch_size):
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# Get the current text generated so far
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# Get only the generated portion of the text
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current_ids = input_ids[batch_idx]
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current_text = self.tokenizer.decode(current_ids)
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generated_ids = current_ids[self.prompt_length:]
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generated_text = self.tokenizer.decode(generated_ids)
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# Get all possible next tokens
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vocab_size = scores.shape[-1]
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# Create a mask to track which tokens are valid
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valid_tokens_mask = torch.zeros(vocab_size, dtype=torch.bool, device=scores.device)
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batch_validator = self.schema_validator.copy()
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print("evaluate tokens continuing:", generated_text)
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# For each possible next token
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if generated_text:
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valid, msg = batch_validator.append(generated_text)
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if not valid:
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print("current generated text invalid, only accept eos_token_id")
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eos_token_id = self.tokenizer.eos_token_id
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if eos_token_id is not None:
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valid_tokens_mask[eos_token_id] = True
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invalid_tokens_mask = ~valid_tokens_mask
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scores[batch_idx, invalid_tokens_mask] = float('-inf')
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continue
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# Rest of the method remains the same
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for token_idx in range(vocab_size):
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# Create a copy of the validator to test this token
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validator_copy = self.schema_validator.copy()
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# Decode the token and test if appending it would be valid
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token_validator = batch_validator.copy()
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token_text = self.tokenizer.decode([token_idx])
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if validator_copy.append(token_text):
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valid, msg = token_validator.append(token_text)
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#print("token:", token_text, "valid:", valid)
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if valid:
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#print("token:", generated_text + token_text)
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valid_tokens_mask[token_idx] = True
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# Mask out invalid tokens by setting their scores to negative infinity
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invalid_tokens_mask = ~valid_tokens_mask
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scores[batch_idx, invalid_tokens_mask] = float('-inf')
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