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Commit 4924455

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feat: Make saved state more compact on-disk (abetlen#1296)
* State load/save changes - Only store up to `n_tokens` logits instead of full `(n_ctx, n_vocab)` sized array. - Difference between ~350MB and ~1500MB for example prompt with ~300 tokens (makes sense lol) - Auto-formatting changes * Back out formatting changes
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‎llama_cpp/llama.py

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+5-3Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -18,6 +18,7 @@
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Iterator,
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Deque,
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Callable,
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Dict,
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)
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from collections import deque
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from pathlib import Path
@@ -1791,7 +1792,7 @@ def save_state(self) -> LlamaState:
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file=sys.stderr,
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)
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return LlamaState(
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scores=self.scores.copy(),
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scores=self._scores.copy(),
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input_ids=self.input_ids.copy(),
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n_tokens=self.n_tokens,
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llama_state=bytes(llama_state_compact),
@@ -1800,7 +1801,9 @@ def save_state(self) -> LlamaState:
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def load_state(self, state: LlamaState) -> None:
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assert self._ctx.ctx is not None
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self.scores = state.scores.copy()
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# Only filling in up to `n_tokens` and then zero-ing out the rest
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self.scores[: state.n_tokens, :] = state.scores.copy()
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self.scores[state.n_tokens :, :] = 0.0
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self.input_ids = state.input_ids.copy()
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self.n_tokens = state.n_tokens
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state_size = state.llama_state_size
@@ -1951,7 +1954,6 @@ def from_pretrained(
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local_dir_use_symlinks=local_dir_use_symlinks,
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cache_dir=cache_dir,
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local_files_only=True,
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)
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else:
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model_path = os.path.join(local_dir, filename)

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