feat: frequency, min_new_tokens, presence, and repetition penalties (#973)
This commit is contained in:
Juwan Yoo
@@ -0,0 +1,80 @@
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import typing
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import unittest
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import torch
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from sglang.srt.sampling.penaltylib.penalizers.frequency_penalty import (
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BatchedFrequencyPenalizer,
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)
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from sglang.test.srt.sampling.penaltylib.utils import (
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BaseBatchedPenalizerTest,
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MockSamplingParams,
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Step,
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StepType,
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Subject,
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)
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FREQUENCY_PENALTY = 0.12
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class TestBatchedFrequencyPenalizer(BaseBatchedPenalizerTest):
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Penalizer = BatchedFrequencyPenalizer
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def _create_subject(self, frequency_penalty: float) -> Subject:
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return Subject(
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sampling_params=MockSamplingParams(
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frequency_penalty=frequency_penalty,
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),
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steps=[
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Step(
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type=StepType.INPUT,
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token_ids=[0, 1, 2],
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expected_tensors={
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"frequency_penalties": self.tensor(
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[[frequency_penalty] * self.vocab_size], dtype=torch.float32
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),
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"cumulated_frequency_penalties": self.tensor(
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[[0.0] * self.vocab_size], dtype=torch.float32
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),
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},
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expected_logits=self.tensor(
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[[1] * self.vocab_size], dtype=torch.float32
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),
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),
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Step(
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type=StepType.OUTPUT,
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token_ids=[1, 2, 2],
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expected_tensors={
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"frequency_penalties": self.tensor(
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[[frequency_penalty] * self.vocab_size], dtype=torch.float32
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),
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"cumulated_frequency_penalties": self.tensor(
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[
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[
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frequency_penalty * i if i in {1, 2} else 0.0
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for i in range(self.vocab_size)
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],
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],
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dtype=torch.float32,
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),
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},
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expected_logits=self.tensor(
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[
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[
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1.0 - frequency_penalty * i if i in {1, 2} else 1.0
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for i in range(self.vocab_size)
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],
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],
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dtype=torch.float32,
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),
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),
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],
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)
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def create_test_subjects(self) -> typing.List[Subject]:
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self.enabled = self._create_subject(frequency_penalty=FREQUENCY_PENALTY)
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self.disabled = self._create_subject(frequency_penalty=0.0)
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if __name__ == "__main__":
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unittest.main()
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152
test/srt/sampling/penaltylib/penalizers/test_min_new_tokens.py
Normal file
152
test/srt/sampling/penaltylib/penalizers/test_min_new_tokens.py
Normal file
@@ -0,0 +1,152 @@
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import typing
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import unittest
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import torch
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from sglang.srt.sampling.penaltylib.penalizers.min_new_tokens import (
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BatchedMinNewTokensPenalizer,
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)
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from sglang.test.srt.sampling.penaltylib.utils import (
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BaseBatchedPenalizerTest,
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MockSamplingParams,
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Step,
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StepType,
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Subject,
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)
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MIN_NEW_TOKENS = 2
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EOS_TOKEN_ID = 4
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STOP_TOKEN_ID = 3
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ALL_STOP_TOKEN_IDS = {STOP_TOKEN_ID, EOS_TOKEN_ID}
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class TestBatchedMinNewTokensPenalizer(BaseBatchedPenalizerTest):
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Penalizer = BatchedMinNewTokensPenalizer
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def _create_subject(self, min_new_tokens: int) -> Subject:
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return Subject(
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eos_token_id=EOS_TOKEN_ID,
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sampling_params=MockSamplingParams(
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min_new_tokens=min_new_tokens,
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stop_token_ids={STOP_TOKEN_ID},
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),
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steps=[
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Step(
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type=StepType.INPUT,
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token_ids=[0, 1, 2],
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expected_tensors={
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"min_new_tokens": self.tensor(
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[[min_new_tokens]], dtype=torch.int32
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),
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"stop_token_penalties": self.tensor(
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[
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[
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float("-inf") if i in ALL_STOP_TOKEN_IDS else 0
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for i in range(self.vocab_size)
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]
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],
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dtype=torch.float32,
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),
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"len_output_tokens": self.tensor([[0]], dtype=torch.int32),
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},
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expected_logits=(
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self.tensor(
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[
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[
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float("-inf") if i in ALL_STOP_TOKEN_IDS else 1
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for i in range(self.vocab_size)
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]
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],
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dtype=torch.float32,
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)
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if min_new_tokens > 0
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else torch.ones(
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(1, self.vocab_size),
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dtype=torch.float32,
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device=self.device,
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)
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),
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),
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Step(
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type=StepType.OUTPUT,
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token_ids=[0],
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expected_tensors={
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"min_new_tokens": self.tensor(
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[[min_new_tokens]], dtype=torch.int32
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),
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"stop_token_penalties": self.tensor(
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[
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[
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float("-inf") if i in ALL_STOP_TOKEN_IDS else 0
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for i in range(self.vocab_size)
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]
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],
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dtype=torch.float32,
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),
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"len_output_tokens": self.tensor([[1]], dtype=torch.int32),
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},
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expected_logits=(
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self.tensor(
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[
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[
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float("-inf") if i in ALL_STOP_TOKEN_IDS else 1
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for i in range(self.vocab_size)
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]
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],
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dtype=torch.float32,
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)
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if min_new_tokens > 1
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else torch.ones(
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(1, self.vocab_size),
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dtype=torch.float32,
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device=self.device,
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)
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),
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),
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Step(
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type=StepType.OUTPUT,
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token_ids=[0],
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expected_tensors={
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"min_new_tokens": self.tensor(
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[[min_new_tokens]], dtype=torch.int32
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),
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"stop_token_penalties": self.tensor(
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[
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[
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float("-inf") if i in ALL_STOP_TOKEN_IDS else 0
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for i in range(self.vocab_size)
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]
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],
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dtype=torch.float32,
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),
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"len_output_tokens": self.tensor([[2]], dtype=torch.int32),
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},
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expected_logits=(
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self.tensor(
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[
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[
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float("-inf") if i in ALL_STOP_TOKEN_IDS else 1
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for i in range(self.vocab_size)
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]
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],
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dtype=torch.float32,
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)
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if min_new_tokens > 2
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else torch.ones(
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(1, self.vocab_size),
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dtype=torch.float32,
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device=self.device,
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)
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),
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),
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],
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)
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def create_test_subjects(self) -> typing.List[Subject]:
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self.enabled = self._create_subject(min_new_tokens=MIN_NEW_TOKENS)
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self.disabled = self._create_subject(min_new_tokens=0.0)
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if __name__ == "__main__":
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unittest.main()
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@@ -0,0 +1,80 @@
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import typing
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import unittest
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import torch
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from sglang.srt.sampling.penaltylib.penalizers.presence_penalty import (
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BatchedPresencePenalizer,
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)
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from sglang.test.srt.sampling.penaltylib.utils import (
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BaseBatchedPenalizerTest,
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MockSamplingParams,
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Step,
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StepType,
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Subject,
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)
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PRESENCE_PENALTY = 0.12
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class TestBatchedPresencePenalizer(BaseBatchedPenalizerTest):
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Penalizer = BatchedPresencePenalizer
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def _create_subject(self, presence_penalty: float) -> Subject:
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return Subject(
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sampling_params=MockSamplingParams(
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presence_penalty=presence_penalty,
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),
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steps=[
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Step(
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type=StepType.INPUT,
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token_ids=[0, 1, 2],
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expected_tensors={
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"presence_penalties": self.tensor(
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[[presence_penalty] * self.vocab_size], dtype=torch.float32
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),
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"cumulated_presence_penalties": self.tensor(
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[[0.0] * self.vocab_size], dtype=torch.float32
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),
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},
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expected_logits=self.tensor(
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[[1] * self.vocab_size], dtype=torch.float32
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),
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),
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Step(
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type=StepType.OUTPUT,
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token_ids=[1, 2, 2],
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expected_tensors={
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"presence_penalties": self.tensor(
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[[presence_penalty] * self.vocab_size], dtype=torch.float32
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),
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"cumulated_presence_penalties": self.tensor(
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[
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[
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presence_penalty if i in {1, 2} else 0.0
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for i in range(self.vocab_size)
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],
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],
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dtype=torch.float32,
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),
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},
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expected_logits=self.tensor(
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[
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[
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1.0 - presence_penalty if i in {1, 2} else 1.0
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for i in range(self.vocab_size)
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],
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],
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dtype=torch.float32,
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),
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),
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],
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)
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def create_test_subjects(self) -> typing.List[Subject]:
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self.enabled = self._create_subject(presence_penalty=PRESENCE_PENALTY)
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self.disabled = self._create_subject(presence_penalty=0.0)
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if __name__ == "__main__":
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unittest.main()
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@@ -0,0 +1,87 @@
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import typing
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import unittest
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import torch
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from sglang.srt.sampling.penaltylib.penalizers.repetition_penalty import (
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BatchedRepetitionPenalizer,
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)
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from sglang.test.srt.sampling.penaltylib.utils import (
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BaseBatchedPenalizerTest,
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MockSamplingParams,
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Step,
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StepType,
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Subject,
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)
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REPETITION_PENALTY = 2.0
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class TestBatchedRepetitionPenalizer(BaseBatchedPenalizerTest):
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Penalizer = BatchedRepetitionPenalizer
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def _create_subject(self, repetition_penalty: float) -> Subject:
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l = 1.0 / repetition_penalty
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return Subject(
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sampling_params=MockSamplingParams(
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repetition_penalty=repetition_penalty,
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),
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steps=[
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Step(
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type=StepType.INPUT,
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token_ids=[0, 1, 2],
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expected_tensors={
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"repetition_penalties": self.tensor(
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[[repetition_penalty] * self.vocab_size],
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dtype=torch.float32,
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),
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"cumulated_repetition_penalties": (
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self.tensor(
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[[2.0, 2.0, 2.0, 1.0, 1.0]], dtype=torch.float32
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)
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if repetition_penalty != 1.0
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else self.tensor(
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[[1.0] * self.vocab_size], dtype=torch.float32
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)
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),
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},
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expected_logits=(
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self.tensor([[l, l, l, 1.0, 1.0]], dtype=torch.float32)
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if repetition_penalty != 1.0
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else self.tensor([[1.0] * self.vocab_size], dtype=torch.float32)
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),
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),
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Step(
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type=StepType.OUTPUT,
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token_ids=[0, 1, 3],
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expected_tensors={
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"repetition_penalties": self.tensor(
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[[repetition_penalty] * self.vocab_size],
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dtype=torch.float32,
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),
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"cumulated_repetition_penalties": (
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self.tensor(
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[[2.0, 2.0, 2.0, 2.0, 1.0]], dtype=torch.float32
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)
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if repetition_penalty != 1.0
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else self.tensor(
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[[1.0] * self.vocab_size], dtype=torch.float32
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)
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),
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},
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expected_logits=(
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self.tensor([[l, l, l, l, 1.0]], dtype=torch.float32)
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if repetition_penalty != 1.0
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else self.tensor([[1.0] * self.vocab_size], dtype=torch.float32)
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),
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),
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],
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)
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def create_test_subjects(self) -> typing.List[Subject]:
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self.enabled = self._create_subject(repetition_penalty=REPETITION_PENALTY)
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self.disabled = self._create_subject(repetition_penalty=1.0)
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if __name__ == "__main__":
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unittest.main()
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@@ -0,0 +1,75 @@
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import json
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import unittest
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import requests
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from sglang.srt.utils import kill_child_process
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from sglang.test.test_utils import DEFAULT_MODEL_NAME_FOR_TEST, popen_launch_server
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class TestBatchPenalizerE2E(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.model = DEFAULT_MODEL_NAME_FOR_TEST
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cls.base_url = f"http://127.0.0.1:{8157}"
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cls.process = popen_launch_server(
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cls.model,
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cls.base_url,
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timeout=300,
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other_args=(
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"--random-seed",
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"0",
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),
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)
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@classmethod
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def tearDownClass(cls):
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kill_child_process(cls.process.pid)
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def run_decode(
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self,
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return_logprob=True,
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top_logprobs_num=5,
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return_text=True,
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n=1,
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**sampling_params,
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):
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response = requests.post(
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self.base_url + "/generate",
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json={
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# prompt that is supposed to generate < 32 tokens
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"text": "<|start_header_id|>user<|end_header_id|>\n\nWhat is the answer for 1 + 1 = ?<|eot_id|><|start_header_id|>assistant<|end_header_id|>\n\n",
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"sampling_params": {
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"max_new_tokens": 32,
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"n": n,
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**sampling_params,
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},
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"stream": False,
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"return_logprob": return_logprob,
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"top_logprobs_num": top_logprobs_num,
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"return_text_in_logprobs": return_text,
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"logprob_start_len": 0,
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},
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)
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print(json.dumps(response.json()))
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print("=" * 100)
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def test_default_values(self):
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self.run_decode()
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def test_frequency_penalty(self):
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self.run_decode(frequency_penalty=2)
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def test_min_new_tokens(self):
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self.run_decode(min_new_tokens=16)
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def test_presence_penalty(self):
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self.run_decode(presence_penalty=2)
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def test_repetition_penalty(self):
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self.run_decode(repetition_penalty=2)
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if __name__ == "__main__":
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unittest.main(warnings="ignore")
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Reference in New Issue
Block a user