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https://github.com/facebookresearch/blt.git
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0ffe2ab685
- Create a common class to use in all inheritance for states - Add a limit iterator that we can use in evals - Modify ArrowFileIterator behavior to not do arrow path inference if file_format='json' - Make EvalArgs valid - Move testing iterators to a common directory to allow usage in multiple test files - Make it so that SequenceIterator can take a None rng_state, to disable all rng ops (for eval mainly) Test Plan: - `pytest bytelatent` - `python -m bytelatent.train config=../internal-blt/configs/entropy_model.yaml logging.wandb=null eval=null`
48 lines
1.4 KiB
Python
48 lines
1.4 KiB
Python
from pydantic import ConfigDict
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from bytelatent.data.iterators.abstract_iterator import (
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PydanticIteratorState,
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StatefulIterator,
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)
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from bytelatent.data.iterators.arrow_iterator import ArrowFileIteratorState
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from bytelatent.data.iterators.dev_iterators import BltTestIteratorState
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class LimitIteratorState(PydanticIteratorState):
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model_config = ConfigDict(extra="forbid")
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base_iterator_state: (
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BltTestIteratorState | ArrowFileIteratorState | PydanticIteratorState
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)
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n_yielded: int
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limit: int
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def build(self) -> "LimitIterator":
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return LimitIterator(
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base_iterator=self.base_iterator_state.build(),
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n_yielded=self.n_yielded,
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limit=self.limit,
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)
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class LimitIterator(StatefulIterator):
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def __init__(self, base_iterator: StatefulIterator, limit: int, n_yielded: int = 0):
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self.base_iterator = base_iterator
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self.n_yielded = n_yielded
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self.limit = limit
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def get_state(self):
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return LimitIteratorState(
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base_iterator_state=self.base_iterator.get_state(),
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n_yielded=self.n_yielded,
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limit=self.limit,
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)
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def create_iter(self):
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iterator = self.base_iterator.create_iter()
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try:
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while self.n_yielded < self.limit or self.limit < 0:
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yield next(iterator)
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self.n_yielded += 1
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except StopIteration:
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pass
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