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@ -17,8 +17,8 @@ class Status(Enum):
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class MicroBatchDescription:
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"""
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This is the class to record the infomation of each microbatch, and also do some update operation.
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This clase is the base class of `HeadMicroBatchDescription` and `BodyMicroBatchDescription`, for more
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This is the class to record the information of each microbatch, and also do some update operation.
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This class is the base class of `HeadMicroBatchDescription` and `BodyMicroBatchDescription`, for more
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details, please refer to the doc of these two classes blow.
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Args:
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@ -61,15 +61,15 @@ class MicroBatchDescription:
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@property
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def cur_length(self):
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"""
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Return the current sequnence length of micro batch
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Return the current sequence length of micro batch
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"""
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class HeadMicroBatchDescription(MicroBatchDescription):
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"""
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This class is used to record the infomation of the first stage of pipeline, the first stage should have attributes `input_ids` and `attention_mask`
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and `new_tokens`, and the `new_tokens` is the tokens generated by the first stage. Also due to the schdule of pipeline, the operation to update the
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This class is used to record the information of the first stage of pipeline, the first stage should have attributes `input_ids` and `attention_mask`
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and `new_tokens`, and the `new_tokens` is the tokens generated by the first stage. Also due to the schedule of pipeline, the operation to update the
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information and the condition to determine the state is different from other stages.
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Args:
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@ -123,7 +123,7 @@ class HeadMicroBatchDescription(MicroBatchDescription):
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class BodyMicroBatchDescription(MicroBatchDescription):
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"""
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This class is used to record the infomation of the stages except the first stage of pipeline, the stages should have attributes `hidden_states` and `past_key_values`,
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This class is used to record the information of the stages except the first stage of pipeline, the stages should have attributes `hidden_states` and `past_key_values`,
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Args:
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inputs_dict (Dict[str, torch.Tensor]): will always be `None`. Other stages only receive hiddenstates from previous stage.
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@ -173,76 +173,76 @@ class MicroBatchManager:
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self.max_input_len = max_input_len
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self.max_output_len = max_output_len
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self.cache_manager_list = cache_manager_list
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self.mb_descrption_buffer = {}
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self.mb_description_buffer = {}
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self.new_tokens_buffer = {}
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self.idx = 0
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def add_descrption(self, inputs_dict: Dict[str, torch.Tensor]):
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def add_description(self, inputs_dict: Dict[str, torch.Tensor]):
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if self.stage == 0:
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self.mb_descrption_buffer[self.idx] = HeadMicroBatchDescription(
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self.mb_description_buffer[self.idx] = HeadMicroBatchDescription(
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inputs_dict, self.max_input_len, self.max_output_len, self.cache_manager_list[self.idx]
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)
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else:
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self.mb_descrption_buffer[self.idx] = BodyMicroBatchDescription(
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self.mb_description_buffer[self.idx] = BodyMicroBatchDescription(
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inputs_dict, self.max_input_len, self.max_output_len, self.cache_manager_list[self.idx]
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)
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def step(self, new_token: torch.Tensor = None):
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"""
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Update the state if microbatch manager, 2 conditions.
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1. For first stage in PREFILL, receive inputs and outputs, `_add_descrption` will save its inputs.
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2. For other conditon, only receive the output of previous stage, and update the descrption.
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1. For first stage in PREFILL, receive inputs and outputs, `_add_description` will save its inputs.
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2. For other condition, only receive the output of previous stage, and update the description.
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Args:
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inputs_dict (Dict[str, torch.Tensor]): the inputs of current stage. The key should have `input_ids` and `attention_mask`.
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output_dict (Dict[str, torch.Tensor]): the outputs of previous stage. The key should have `hidden_states` and `past_key_values`.
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new_token (torch.Tensor): the new token generated by current stage.
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"""
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# Add descrption first if the descrption is None
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self.cur_descrption.update(new_token)
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# Add description first if the description is None
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self.cur_description.update(new_token)
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return self.cur_state
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def export_new_tokens(self):
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new_tokens_list = []
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for i in self.mb_descrption_buffer.values():
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for i in self.mb_description_buffer.values():
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new_tokens_list.extend(i.new_tokens.tolist())
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return new_tokens_list
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def is_micro_batch_done(self):
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if len(self.mb_descrption_buffer) == 0:
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if len(self.mb_description_buffer) == 0:
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return False
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for mb in self.mb_descrption_buffer.values():
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for mb in self.mb_description_buffer.values():
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if mb.state != Status.DONE:
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return False
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return True
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def clear(self):
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self.mb_descrption_buffer.clear()
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self.mb_description_buffer.clear()
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for cache in self.cache_manager_list:
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cache.free_all()
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def next(self):
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self.idx = (self.idx + 1) % self.buffer_size
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def _remove_descrption(self):
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self.mb_descrption_buffer.pop(self.idx)
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def _remove_description(self):
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self.mb_description_buffer.pop(self.idx)
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@property
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def cur_descrption(self) -> MicroBatchDescription:
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return self.mb_descrption_buffer.get(self.idx)
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def cur_description(self) -> MicroBatchDescription:
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return self.mb_description_buffer.get(self.idx)
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@property
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def cur_infer_state(self):
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if self.cur_descrption is None:
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if self.cur_description is None:
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return None
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return self.cur_descrption.infer_state
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return self.cur_description.infer_state
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@property
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def cur_state(self):
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"""
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Return the state of current micro batch, when current descrption is None, the state is PREFILL
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Return the state of current micro batch, when current description is None, the state is PREFILL
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"""
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if self.cur_descrption is None:
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if self.cur_description is None:
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return Status.PREFILL
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return self.cur_descrption.state
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return self.cur_description.state
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