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[Misc] Improve validation errors around best_of and n (#9167)

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Signed-off-by: Travis Johnson <tsjohnso@us.ibm.com>
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Travis Johnson 2024-10-08 22:54:48 -06:00 committed by GitHub
parent acce7630c1
commit 480b7f40cf
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1 changed files with 7 additions and 4 deletions
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11
vllm/sampling_params.py
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@ -330,8 +330,8 @@ class SamplingParams(
if self.n < 1:
raise ValueError(f"n must be at least 1, got {self.n}.")
if not isinstance(self.best_of, int):
raise ValueError(f'best_of must be an int, but is of '
f'type {type(self.best_of)}')
raise ValueError(f"best_of must be an int, but is of "
f"type {type(self.best_of)}")
if self.best_of < self.n:
raise ValueError(f"best_of must be greater than or equal to n, "
f"got n={self.n} and best_of={self.best_of}.")
@ -390,10 +390,13 @@ class SamplingParams(
raise ValueError("best_of must equal n to use output_kind=DELTA")
def _verify_greedy_sampling(self) -> None:
if self.n > 1:
raise ValueError("n must be 1 when using greedy sampling, "
f"got {self.n}.")
assert isinstance(self.best_of, int)
if self.best_of > 1:
raise ValueError("best_of must be 1 when using greedy sampling."
f"Got {self.best_of}.")
raise ValueError("best_of must be 1 when using greedy sampling, "
f"got {self.best_of}.")
def update_from_generation_config(
self,