27 lines
1007 B
Python
27 lines
1007 B
Python
# SPDX-License-Identifier: Apache-2.0
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# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
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"""Configuration for discrete diffusion (dLLM) models."""
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from pydantic import Field
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from vllm.config.utils import config
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@config
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class DiffusionConfig:
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"""Configuration for discrete diffusion language models (dLLMs).
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dLLMs generate tokens via iterative denoising over a fixed-length canvas
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rather than left-to-right autoregressive decoding. They reuse the
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speculative-decoding data path (draft token ids, scheduled spec decode
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tokens) with overloaded semantics for block-based generation.
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"""
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canvas_length: int = Field(default=None, gt=0) # type: ignore[assignment]
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"""Length of the denoising canvas (block). Also determines the number of
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speculative tokens scheduled per step."""
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max_denoising_steps: int | None = None
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"""Maximum number of denoising iterations per canvas block.
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If not set, read from the model's generation_config.json."""
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