Add Omni model components and input processing for hidden states support

- Introduced `OmniModelRunnerOutput` and `OmniRequestOutput` classes for handling multimodal outputs.
- Implemented `OmniEngineCoreRequest` and `OmniInputPreprocessor` to manage prompt embeddings and additional information.
- Created `OmniTokensPrompt`, `OmniTokenInputs`, and `OmniEmbedsPrompt` for enhanced token handling.
- Added parsing and preprocessing functions to support new input structures.
- Removed the obsolete `diffusion_engine.py` file as part of the refactor.
This commit is contained in:
tzhouam committed 2025-10-22 15:16:25 +08:00
1 parent 7a85034d9b
commit 83e7f6ba12
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"""
Engine components for vLLM-omni.
"""
import msgspec
from typing import Any
from .output_processor import MultimodalOutputProcessor
from vllm.v1.engine import EngineCoreRequest
from typing import Optional
__all__ = [
"MultimodalOutputProcessor",
]
class PromptEmbedsPayload(msgspec.Struct):
"""Serialized prompt embeddings payload for direct transfer.
data: raw bytes of the tensor in row-major order
shape: [seq_len, hidden_size]
dtype: torch dtype name (e.g., "float16", "float32")
"""
data: bytes
shape: list[int]
dtype: str
class AdditionalInformationEntry(msgspec.Struct):
"""One entry of additional_information.
Two supported forms are encoded:
- tensor: data/shape/dtype
- list: a Python list (msgspec-serializable)
Exactly one of (tensor_data, list_data) should be non-None.
"""
# Tensor form
tensor_data: Optional[bytes] = None
tensor_shape: Optional[list[int]] = None
tensor_dtype: Optional[str] = None
# List form
list_data: Optional[list[Any]] = None
class AdditionalInformationPayload(msgspec.Struct):
"""Serialized dictionary payload for additional_information.
Keys are strings; values are encoded as AdditionalInformationEntry.
"""
entries: dict[str, AdditionalInformationEntry]
class OmniEngineCoreRequest(EngineCoreRequest):
# Optional prompt embeddings (direct-transfer version)
prompt_embeds: Optional[PromptEmbedsPayload] = None
# Optional additional information dictionary (serialized)
additional_information: Optional[AdditionalInformationPayload] = None
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from vllm.engine.arg_utils import EngineArgs
from typing import Literal, Optional
from dataclasses import dataclass
from vllm_omni.config import OmniModelConfig
from vllm.utils import FlexibleArgumentParser
@dataclass
class OmniEngineArgs(EngineArgs):
stage_id: int = 0
model_stage: str = "thinker"
model_arch: str = "Qwen2_5OmniForConditionalGeneration"
engine_output_type: Optional[str] = None
@staticmethod
def add_cli_args(parser: FlexibleArgumentParser) -> FlexibleArgumentParser:
"""Shared CLI arguments for vLLM engine."""
parser.add_argument(
"--engine-output-type",
type=str,
default=EngineArgs.engine_output_type,
help=(
"Declare EngineCoreOutput.output_type (e.g., 'text', 'image', "
"'text+image', 'latent'). This will be written into "
"model_config.engine_output_type for schedulers to use."
),
)
parser.add_argument("--model-stage", type=str, default=EngineArgs.model_stage,
help="Declare model stage (e.g., 'thinker', 'talker', 'token2wav'). This will be written into model_config.model_stage for schedulers to use.")
return parser
def create_model_config(self) -> OmniModelConfig:
# First, get the base ModelConfig from the parent class
base_config = super().create_model_config()
# Create OmniModelConfig by copying all base config attributes
# and adding the new omni-specific fields
config_dict = base_config.__dict__.copy()
# Add the new omni-specific fields
config_dict['stage_id'] = self.stage_id
config_dict['model_stage'] = self.model_stage
config_dict['model_arch'] = self.model_arch
config_dict['engine_output_type'] = self.engine_output_type
# Create and return the OmniModelConfig instance
omni_config = OmniModelConfig(**config_dict)
omni_config.hf_config.architectures = omni_config.architectures
return omni_config
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"""Diffusion engine adapters for diffusers-backed DiT stages."""
from __future__ import annotations
from typing import Any, Optional
from ..config import DiTConfig
from ..worker.gpu_diffusion_worker import (
DiffusionGPUWorker,
DiffusionRunnerOutput,
)
class DiffusionEngine:
"""Base diffusion engine storing shared DiT configuration."""
def __init__(
self,
dit_config: DiTConfig,
model_path: Optional[str] = None,
log_stats: bool = False,
multiprocess_mode: bool = False,
) -> None:
self.dit_config = dit_config
model_cfg = getattr(dit_config, "model_config", None)
config_model_path = None
if model_cfg is not None:
if isinstance(model_cfg, dict):
config_model_path = (
model_cfg.get("model")
or model_cfg.get("model_path")
)
else:
config_model_path = (
getattr(model_cfg, "model", None)
or getattr(model_cfg, "model_path", None)
)
self.model_path = model_path or config_model_path
self.model_config = dit_config.model_config
self.cache_config = dit_config.dit_cache_config
self.height = dit_config.height
self.width = dit_config.width
self.num_inference_steps = dit_config.num_inference_steps
self.guidance_scale = dit_config.guidance_scale
self.log_stats = log_stats
self.multiprocess_mode = multiprocess_mode
def generate(self, *args, **kwargs): # pragma: no cover - placeholder
raise NotImplementedError("This method should be implemented in subclasses.")
class DiffusersPipelineEngine(DiffusionEngine):
"""Adapter that invokes a diffusers pipeline via DiffusionGPUWorker."""
def __init__(
self,
dit_config: DiTConfig,
model_path: Optional[str] = None,
log_stats: bool = False,
multiprocess_mode: bool = False,
) -> None:
super().__init__(dit_config, model_path, log_stats, multiprocess_mode)
resolved_model_path = self.model_path
if resolved_model_path is None:
raise ValueError("Model path must be provided for DiffusersPipelineEngine.")
device_cfg = getattr(dit_config, "device_config", None)
model_cfg = getattr(dit_config, "model_config", None)
device = None
dtype = None
if device_cfg:
if isinstance(device_cfg, dict):
device = device_cfg.get("device")
dtype = device_cfg.get("dtype")
else:
device = getattr(device_cfg, "device", None)
dtype = getattr(device_cfg, "dtype", None)
if dtype is None and model_cfg:
if isinstance(model_cfg, dict):
dtype = model_cfg.get("dtype")
else:
dtype = getattr(model_cfg, "dtype", None)
self.worker = DiffusionGPUWorker(
resolved_model_path,
pipeline_name=dit_config.diffusers_pipeline,
device=device,
dtype=dtype,
)
def generate(
self,
prompt: str,
*,
height: Optional[int] = None,
width: Optional[int] = None,
num_inference_steps: Optional[int] = None,
guidance_scale: Optional[float] = None,
negative_prompt: Optional[str] = None,
seed: Optional[int] = None,
image: Optional[Any] = None,
) -> DiffusionRunnerOutput:
height = int(height) if height is not None else self.height
width = int(width) if width is not None else self.width
num_steps = (
int(num_inference_steps)
if num_inference_steps is not None
else self.num_inference_steps
)
guidance = (
float(guidance_scale)
if guidance_scale is not None
else self.guidance_scale
)
return self.worker.generate(
prompt=prompt,
height=height,
width=width,
num_inference_steps=num_steps,
guidance_scale=guidance,
negative_prompt=negative_prompt,
seed=seed,
image=image,
)
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import time
from collections.abc import Mapping, Sequence
from typing import Any, Optional, Union
from vllm.inputs import ProcessorInputs, PromptType
from vllm.inputs.parse import split_enc_dec_inputs
from vllm.lora.request import LoRARequest
from vllm.multimodal import MultiModalKwargs
from vllm.multimodal.inputs import PlaceholderRange
from vllm.multimodal.utils import merge_and_sort_multimodal_metadata
from vllm.pooling_params import PoolingParams
from vllm.sampling_params import SamplingParams
from vllm.config import VllmConfig
from vllm.transformers_utils.tokenizer_group import TokenizerGroup
from vllm.multimodal import MULTIMODAL_REGISTRY, MultiModalRegistry
from vllm_omni.inputs.preprocess import OmniInputPreprocessor
from vllm.v1.engine.processor import Processor
from vllm_omni.engine import PromptEmbedsPayload, AdditionalInformationPayload, AdditionalInformationEntry, OmniEngineCoreRequest
class OmniProcessor(Processor):
def __init__(self,
vllm_config: VllmConfig,
tokenizer: TokenizerGroup,
mm_registry: MultiModalRegistry = MULTIMODAL_REGISTRY,
):
super().__init__(vllm_config, tokenizer, mm_registry)
self.input_preprocessor = OmniInputPreprocessor(self.model_config,
self.tokenizer,
mm_registry)
def process_inputs(
self,
request_id: str,
prompt: PromptType,
params: Union[SamplingParams, PoolingParams],
arrival_time: Optional[float] = None,
lora_request: Optional[LoRARequest] = None,
tokenization_kwargs: Optional[dict[str, Any]] = None,
trace_headers: Optional[Mapping[str, str]] = None,
priority: int = 0,
data_parallel_rank: Optional[int] = None,
) -> tuple[Optional[str], OmniEngineCoreRequest]:
# TODO(woosuk): Support pooling models.
# TODO(woosuk): Support encoder-decoder models.
self._validate_lora(lora_request)
self._validate_params(params, lora_request)
if trace_headers is not None:
raise ValueError("V1 does not support tracing yet.")
data_parallel_size = self.vllm_config.parallel_config.data_parallel_size
if data_parallel_rank is not None and not (0 <= data_parallel_rank <
data_parallel_size):
raise ValueError(f"data_parallel_rank {data_parallel_rank} "
f"is out of range [0, {data_parallel_size}).")
if arrival_time is None:
arrival_time = time.time()
# Process inputs, which includes:
# 1. Tokenize text prompt, with LoRA request if one exists.
# 2. For multimodal models with a merged preprocessor, preprocess
# multimodal data and expand prompt token ids accordingly.
return_mm_hashes = (self.model_config.processor_return_mm_hashes
or bool(self.cache_config.enable_prefix_caching))
processed_inputs: ProcessorInputs = self.input_preprocessor.preprocess(
prompt,
tokenization_kwargs=tokenization_kwargs,
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
from vllm.platforms import current_platform
current_platform.validate_request(
prompt=prompt,
params=params,
processed_inputs=processed_inputs,
)
eos_token_id = self.input_preprocessor.get_eos_token_id(lora_request)
self._validate_model_inputs(processed_inputs, lora_request)
encoder_inputs, decoder_inputs = split_enc_dec_inputs(processed_inputs)
# TODO: Impl encoder-decoder
if encoder_inputs is not None:
raise NotImplementedError
sampling_params = None
pooling_params = None
if isinstance(params, SamplingParams):
# TODO: can we avoid cloning here in multiproc case?
sampling_params = params.clone()
# If unset max tokens, then generate up to the max_model_len.
if sampling_params.max_tokens is None:
sampling_params.max_tokens = (
self.model_config.max_model_len -
len(decoder_inputs["prompt_token_ids"]))
sampling_params.update_from_generation_config(
self.generation_config_fields, eos_token_id)
if self.tokenizer is not None:
sampling_params.update_from_tokenizer(
self.tokenizer.get_lora_tokenizer(lora_request))
else:
pooling_params = params.clone()
# Multimodal related.
sorted_mm_inputs: Optional[Sequence[Optional[MultiModalKwargs]]] = None
sorted_mm_positions: Optional[list[PlaceholderRange]] = None
sorted_mm_hashes: Optional[list[str]] = None
if decoder_inputs["type"] == "multimodal":
decoder_mm_inputs = decoder_inputs["mm_kwargs"]
# Merge and flatten multimodal placeholders, hashes and inputs
# from dictionaries to lists, and sort them by each item's position
# in the input sequence.
(
sorted_item_modalities,
sorted_mm_positions,
sorted_mm_hashes,
) = merge_and_sort_multimodal_metadata(
decoder_inputs["mm_placeholders"],
decoder_inputs["mm_hashes"] if return_mm_hashes else None,
)
# The output of merged multi-modal processor (`decoder_mm_inputs`)
# is a single MultiModalKwargs for all items from all modalities.
# This code flattens kwargs for individual items in a list and
# sorts them by each item's position in the input sequence if there
# are multiple modalities.
unique_modalities = set(sorted_item_modalities)
if len(unique_modalities) > 1:
orig_sorted_mm_inputs = []
used_indices = {modality: 0 for modality in unique_modalities}
for modality in sorted_item_modalities:
items = decoder_mm_inputs.get_items(modality)
item = items[used_indices[modality]]
orig_sorted_mm_inputs.append(
MultiModalKwargs.from_items([item]))
used_indices[modality] += 1
else:
orig_sorted_mm_inputs = [
MultiModalKwargs.from_items([item]) for item in
decoder_mm_inputs.get_items(sorted_item_modalities[0])
]
if sorted_mm_hashes is not None:
sorted_mm_inputs = self.mm_input_cache_client.get_and_update(
orig_sorted_mm_inputs, sorted_mm_hashes)
else:
sorted_mm_inputs = orig_sorted_mm_inputs
# Serialize prompt_embeds and additional_information if provided (direct-transfer path)
prompt_embeds_payload: Optional[PromptEmbedsPayload] = None
additional_information_payload: Optional[AdditionalInformationPayload] = None
if "prompt_embeds" in decoder_inputs: # type: ignore[operator]
import numpy as np
import torch
pe: torch.Tensor = decoder_inputs["prompt_embeds"] # type: ignore[index]
if pe.ndim != 2:
raise ValueError(
"prompt_embeds must be of shape (seq_len, hidden_size)")
# Move to CPU and ensure contiguous memory for stable serialization
pe_cpu = pe.detach().to("cpu").contiguous()
seq_len, hidden_size = pe_cpu.shape
dtype_str = str(pe_cpu.dtype).replace("torch.", "")
data_bytes = pe_cpu.numpy().tobytes()
prompt_embeds_payload = PromptEmbedsPayload(
data=data_bytes,
shape=[int(seq_len), int(hidden_size)],
dtype=dtype_str,
)
if "additional_information" in decoder_inputs: # type: ignore[operator]
import numpy as np
import torch
raw_info: dict[str, Any] = decoder_inputs["additional_information"] # type: ignore[index]
entries: dict[str, AdditionalInformationEntry] = {}
for key, value in raw_info.items():
if isinstance(value, torch.Tensor):
v_cpu = value.detach().to("cpu").contiguous()
dtype_str = str(v_cpu.dtype).replace("torch.", "")
data_bytes = v_cpu.numpy().tobytes()
entry = AdditionalInformationEntry(
tensor_data=data_bytes,
tensor_shape=[int(x) for x in list(v_cpu.shape)],
tensor_dtype=dtype_str,
)
elif isinstance(value, list):
entry = AdditionalInformationEntry(list_data=value)
else:
raise ValueError(
"additional_information values must be Tensor or list")
entries[key] = entry
additional_information_payload = AdditionalInformationPayload(
entries=entries)
return decoder_inputs.get("prompt"), OmniEngineCoreRequest(
request_id=request_id,
prompt_token_ids=decoder_inputs["prompt_token_ids"],
mm_inputs=sorted_mm_inputs,
mm_hashes=sorted_mm_hashes,
mm_placeholders=sorted_mm_positions,
sampling_params=sampling_params,
pooling_params=pooling_params,
eos_token_id=eos_token_id,
arrival_time=arrival_time,
lora_request=lora_request,
cache_salt=decoder_inputs.get("cache_salt"),
priority=priority,
data_parallel_rank=data_parallel_rank,
prompt_embeds=prompt_embeds_payload,
additional_information=additional_information_payload,
)
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from vllm.inputs.data import TokensPrompt, EmbedsPrompt, TokenInputs
from typing import Any, NotRequired, Optional
import torch
class OmniTokensPrompt(TokensPrompt):
prompt_embeds: NotRequired[torch.Tensor]
"""The embeddings of the prompt."""
# New: optional additional information dictionary
# Values may be torch.Tensor or list
additional_information: NotRequired[dict[str, Any]]
class OmniTokenInputs(TokenInputs):
# New: optional prompt embeddings aligned with token ids
prompt_embeds: NotRequired[torch.Tensor]
# New: optional additional information dictionary
# Values may be torch.Tensor or list
additional_information: NotRequired[dict[str, Any]]
class OmniEmbedsPrompt(EmbedsPrompt):
# New: optional prompt embeddings aligned with token ids
prompt_embeds: NotRequired[torch.Tensor]
# New: optional additional information dictionary
# Values may be torch.Tensor or list
additional_information: NotRequired[dict[str, Any]]
def token_inputs_omni(
prompt_token_ids: list[int],
token_type_ids: Optional[list[int]] = None,
prompt: Optional[str] = None,
cache_salt: Optional[str] = None,
prompt_embeds: Optional[torch.Tensor] = None,
additional_information: Optional[dict[str, Any]] = None,
) -> OmniTokenInputs:
"""Construct [`TokenInputs`][vllm.inputs.data.TokenInputs] from optional
values."""
inputs = OmniTokenInputs(type="token", prompt_token_ids=prompt_token_ids)
if prompt is not None:
inputs["prompt"] = prompt
if token_type_ids is not None:
inputs["token_type_ids"] = token_type_ids
if cache_salt is not None:
inputs["cache_salt"] = cache_salt
if prompt_embeds is not None:
inputs["prompt_embeds"] = prompt_embeds
if additional_information is not None:
inputs["additional_information"] = additional_information
return inputs
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from vllm.inputs.parse import ParsedSingletonPrompt, ParsedStrPrompt, ParsedEmbedsPrompt, ParsedTokensPrompt, ParsedTextPrompt
from vllm.inputs.data import SingletonPrompt
def parse_singleton_prompt_omni(prompt: SingletonPrompt) -> ParsedSingletonPrompt:
if isinstance(prompt, str):
return ParsedStrPrompt(type="str", content=prompt)
elif isinstance(prompt, dict):
# Type ignores are because mypy does not correctly infer the TypedDicts
# Pyright does succeed.
# 优先 tokens:当 tokens 与 embeds 同在时,保留两者并走 tokens 路径
if "prompt_token_ids" in prompt:
return ParsedTokensPrompt(
type="tokens", content=prompt) # type: ignore[typeddict-item]
elif "prompt_embeds" in prompt:
return ParsedEmbedsPrompt(
type="embeds", content=prompt) # type: ignore[typeddict-item]
elif "prompt" in prompt:
return ParsedTextPrompt(type="text", content=prompt)
raise TypeError(
"inputs must be a string, TextPrompt, TokensPrompt, or EmbedsPrompt")
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from typing import Optional, Any, Union
from typing_extensions import assert_never
from vllm.lora.request import LoRARequest
from vllm.inputs.preprocess import InputPreprocessor
from vllm.inputs.data import TokensPrompt, SingletonPrompt, SingletonInputs, TextPrompt
from vllm.multimodal.inputs import MultiModalInputs
from vllm_omni.inputs.data import OmniTokenInputs, token_inputs_omni
from vllm_omni.inputs.parse import parse_singleton_prompt_omni
class OmniInputPreprocessor(InputPreprocessor):
def _process_tokens(
self,
parsed_content: TokensPrompt,
tokenization_kwargs: Optional[dict[str, Any]] = None,
lora_request: Optional[LoRARequest] = None,
return_mm_hashes: bool = False,
) -> Union[OmniTokenInputs, MultiModalInputs]:
prompt_token_ids = parsed_content["prompt_token_ids"]
token_type_ids = parsed_content.get("token_type_ids")
prompt_embeds = parsed_content.get("prompt_embeds")
additional_information = parsed_content.get("additional_information")
inputs: Union[OmniTokenInputs, MultiModalInputs]
if multi_modal_data := parsed_content.get("multi_modal_data"):
inputs = self._process_multimodal(
prompt_token_ids,
multi_modal_data,
parsed_content.get("mm_processor_kwargs"),
tokenization_kwargs=tokenization_kwargs,
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
else:
inputs = token_inputs_omni(
prompt_token_ids=prompt_token_ids,
token_type_ids=token_type_ids,
prompt_embeds=prompt_embeds,
additional_information=additional_information,
)
if cache_salt := parsed_content.get("cache_salt"):
inputs["cache_salt"] = cache_salt
return inputs
def _prompt_to_llm_inputs(
self,
prompt: SingletonPrompt,
tokenization_kwargs: Optional[dict[str, Any]] = None,
lora_request: Optional[LoRARequest] = None,
return_mm_hashes: bool = False,
) -> SingletonInputs:
"""
Extract the singleton inputs from a prompt.
Arguments:
* prompt: single encoder or decoder input prompt
* lora_request: this is only valid for decoder prompts
* return_mm_hashes: whether to return multimodal hashes
Returns:
* [`SingletonInputs`][vllm.inputs.data.SingletonInputs] instance
"""
parsed = parse_singleton_prompt_omni(prompt)
if parsed["type"] == "embeds":
return self._process_embeds(parsed["content"])
if parsed["type"] == "tokens":
return self._process_tokens(
parsed["content"],
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
if parsed["type"] == "text":
return self._process_text(
parsed["content"],
tokenization_kwargs=tokenization_kwargs,
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
if parsed["type"] == "str":
return self._process_text(
TextPrompt(prompt=parsed["content"]),
tokenization_kwargs=tokenization_kwargs,
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
assert_never(parsed)
async def _process_tokens_async(
self,
parsed_content: TokensPrompt,
tokenization_kwargs: Optional[dict[str, Any]] = None,
lora_request: Optional[LoRARequest] = None,
return_mm_hashes: bool = False,
) -> Union[OmniTokenInputs, MultiModalInputs]:
prompt_token_ids = parsed_content["prompt_token_ids"]
token_type_ids = parsed_content.get("token_type_ids")
prompt_embeds = parsed_content.get("prompt_embeds")
additional_information = parsed_content.get("additional_information")
inputs: Union[OmniTokenInputs, MultiModalInputs]
if multi_modal_data := parsed_content.get("multi_modal_data"):
inputs = await self._process_multimodal_async(
prompt_token_ids,
multi_modal_data,
parsed_content.get("mm_processor_kwargs"),
tokenization_kwargs=tokenization_kwargs,
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
else:
inputs = token_inputs_omni(
prompt_token_ids=prompt_token_ids,
token_type_ids=token_type_ids,
prompt_embeds=prompt_embeds,
additional_information=additional_information,
)
if cache_salt := parsed_content.get("cache_salt"):
inputs["cache_salt"] = cache_salt
return inputs
async def _prompt_to_llm_inputs_async(
self,
prompt: SingletonPrompt,
tokenization_kwargs: Optional[dict[str, Any]] = None,
lora_request: Optional[LoRARequest] = None,
return_mm_hashes: bool = False,
) -> SingletonInputs:
"""
Async version of
[`_prompt_to_llm_inputs`][vllm.inputs.preprocess.InputPreprocessor._prompt_to_llm_inputs].
"""
parsed = parse_singleton_prompt_omni(prompt)
if parsed["type"] == "embeds":
return await self._process_embeds_async(parsed["content"])
if parsed["type"] == "tokens":
return await self._process_tokens_async(
parsed["content"],
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
if parsed["type"] == "text":
return await self._process_text_async(
parsed["content"],
tokenization_kwargs=tokenization_kwargs,
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
if parsed["type"] == "str":
return await self._process_text_async(
TextPrompt(prompt=parsed["content"]),
tokenization_kwargs=tokenization_kwargs,
lora_request=lora_request,
return_mm_hashes=return_mm_hashes,
)
assert_never(parsed)
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from vllm.v1.outputs import ModelRunnerOutput
from vllm.outputs import RequestOutput
from typing import Optional
from dataclasses import dataclass
import torch
class OmniModelRunnerOutput(ModelRunnerOutput):
multimodal_outputs: Optional[dict[str, torch.Tensor]] = None
@dataclass
class OmniRequestOutput(RequestOutput):
stage_id: int
final_output_type: str
request_output: RequestOutput
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import sys
from vllm.inputs.data import TokensPrompt as _OriginalTokensPrompt
from vllm.model_executor.layers.rotary_embedding import MRotaryEmbedding as _OriginalMRotaryEmbedding
from vllm.v1.request import Request as _OriginalRequest
from vllm.v1.engine import EngineCoreRequest as _OriginalEngineCoreRequest
from vllm_omni.inputs.data import OmniTokensPrompt
from vllm_omni.model_executor.layers.mrope import MRotaryEmbedding
from vllm_omni.request import OmniRequest
from vllm_omni.engine import OmniEngineCoreRequest
for module_name, module in sys.modules.items():
if hasattr(module, 'TokensPrompt') and module.TokensPrompt == _OriginalTokensPrompt:
module.TokensPrompt = OmniTokensPrompt
if hasattr(module, 'MRotaryEmbedding') and module.MRotaryEmbedding == _OriginalMRotaryEmbedding:
module.MRotaryEmbedding = MRotaryEmbedding
if hasattr(module, 'Request') and module.Request == _OriginalRequest:
module.Request = OmniRequest
if hasattr(module, 'EngineCoreRequest') and module.EngineCoreRequest == _OriginalEngineCoreRequest:
module.EngineCoreRequest = OmniEngineCoreRequest
+42 -294
View File
@@ -1,299 +1,47 @@
"""
OmniRequest: Extended request class for vLLM-omni multimodal processing.
This class extends vLLM's Request to support multimodal and non-autoregressive
processing with additional fields and methods specific to vLLM-omni.
"""
import enum
import time
from typing import Optional, Dict, Any, List, Union
from dataclasses import dataclass, field
from vllm.v1.request import Request as vLLMRequest
from vllm.v1.request import Request
from vllm.v1.structured_output.request import StructuredOutputRequest
from vllm.multimodal.inputs import MultiModalKwargs
from vllm.utils import is_list_of
from typing import Optional
from vllm_omni.engine import PromptEmbedsPayload, AdditionalInformationPayload, OmniEngineCoreRequest
class RequestType(enum.Enum):
"""Types of requests supported by vLLM-omni."""
TEXT = "text"
IMAGE = "image"
AUDIO = "audio"
VIDEO = "video"
MULTIMODAL = "multimodal"
DIFFUSION = "diffusion"
class ProcessingStage(enum.Enum):
"""Processing stages for multi-stage models."""
PREPROCESSING = "preprocessing"
AR_GENERATION = "ar_generation"
DIFFUSION_GENERATION = "diffusion_generation"
POSTPROCESSING = "postprocessing"
COMPLETED = "completed"
@dataclass
class MultimodalData:
"""Container for multimodal input data."""
data_type: str # "image", "audio", "video", etc.
data: Any # The actual data (numpy array, bytes, etc.)
metadata: Dict[str, Any] = field(default_factory=dict)
processed: bool = False
@dataclass
class DiffusionParams:
"""Parameters specific to diffusion model generation."""
num_inference_steps: int = 50
guidance_scale: float = 7.5
seed: Optional[int] = None
scheduler: str = "ddpm"
strength: float = 1.0
eta: float = 0.0
class OmniRequest(vLLMRequest):
"""
Extended request class for vLLM-omni multimodal and non-autoregressive processing.
This class extends vLLM's Request with additional fields and methods to support:
- Multimodal input processing
- Non-autoregressive generation (diffusion models)
- Multi-stage processing pipelines
- Enhanced caching for different model types
"""
class OmniRequest(Request):
def __init__(
self,
request_id: str,
prompt: Optional[str] = None,
prompt_token_ids: Optional[List[int]] = None,
sampling_params: Optional[Any] = None,
arrival_time: Optional[float] = None,
lora_request: Optional[Any] = None,
multi_modal_data: Optional[Dict[str, Any]] = None,
multi_modal_placeholders: Optional[Dict[str, str]] = None,
priority: int = 0,
# vLLM-omni specific parameters
request_type: RequestType = RequestType.TEXT,
processing_stage: ProcessingStage = ProcessingStage.PREPROCESSING,
multimodal_inputs: Optional[List[MultimodalData]] = None,
diffusion_params: Optional[DiffusionParams] = None,
output_format: str = "text",
cache_key: Optional[str] = None,
stage_configs: Optional[Dict[str, Any]] = None,
**kwargs
):
# Initialize parent class
super().__init__(
request_id=request_id,
prompt=prompt,
prompt_token_ids=prompt_token_ids,
sampling_params=sampling_params,
arrival_time=arrival_time or time.time(),
lora_request=lora_request,
multi_modal_data=multi_modal_data,
multi_modal_placeholders=multi_modal_placeholders,
priority=priority,
**kwargs
)
# vLLM-omni specific attributes
self.request_type = request_type
self.processing_stage = processing_stage
self.multimodal_inputs = multimodal_inputs or []
self.diffusion_params = diffusion_params or DiffusionParams()
self.output_format = output_format
self.cache_key = cache_key
self.stage_configs = stage_configs or {}
# Processing state
self.current_stage = 0
self.stage_results = {}
self.hidden_states = None
self.intermediate_outputs = []
# Timing and metrics
self.stage_timings = {}
self.total_processing_time = 0.0
# Error handling
self.errors = []
self.retry_count = 0
self.max_retries = 3
self,
prompt_embeds: Optional[PromptEmbedsPayload] = None,
additional_information: Optional[AdditionalInformationPayload] = None,
*args, **kwargs):
super().__init__(*args, **kwargs)
# Serialized prompt embeddings payload (optional)
self.prompt_embeds: Optional[PromptEmbedsPayload] = prompt_embeds
# Serialized additional information payload (optional)
self.additional_information: Optional[AdditionalInformationPayload] = additional_information
def add_multimodal_input(self, data: MultimodalData) -> None:
"""Add a multimodal input to the request."""
self.multimodal_inputs.append(data)
def get_multimodal_inputs_by_type(self, data_type: str) -> List[MultimodalData]:
"""Get all multimodal inputs of a specific type."""
return [inp for inp in self.multimodal_inputs if inp.data_type == data_type]
def update_processing_stage(self, stage: ProcessingStage) -> None:
"""Update the current processing stage."""
self.processing_stage = stage
self.stage_timings[stage.value] = time.time()
def add_stage_result(self, stage: str, result: Any) -> None:
"""Add a result from a processing stage."""
self.stage_results[stage] = result
self.intermediate_outputs.append({
'stage': stage,
'result': result,
'timestamp': time.time()
})
def get_stage_result(self, stage: str) -> Any:
"""Get a result from a specific processing stage."""
return self.stage_results.get(stage)
def set_hidden_states(self, hidden_states: Any) -> None:
"""Set hidden states for the request."""
self.hidden_states = hidden_states
def get_hidden_states(self) -> Any:
"""Get hidden states for the request."""
return self.hidden_states
def add_error(self, error: str) -> None:
"""Add an error to the request."""
self.errors.append({
'error': error,
'timestamp': time.time(),
'stage': self.processing_stage.value
})
def has_errors(self) -> bool:
"""Check if the request has any errors."""
return len(self.errors) > 0
def can_retry(self) -> bool:
"""Check if the request can be retried."""
return self.retry_count < self.max_retries
def increment_retry(self) -> None:
"""Increment the retry count."""
self.retry_count += 1
def generate_cache_key(self) -> str:
"""Generate a cache key for the request."""
if self.cache_key:
return self.cache_key
# Generate cache key based on request content
key_parts = [
self.request_id,
str(self.request_type.value),
str(self.prompt_token_ids) if self.prompt_token_ids else str(self.prompt),
str(self.diffusion_params.num_inference_steps) if self.diffusion_params else "0",
str(len(self.multimodal_inputs))
]
return "_".join(key_parts)
def get_processing_time(self) -> float:
"""Get the total processing time for the request."""
if self.stage_timings:
return time.time() - min(self.stage_timings.values())
return 0.0
def is_completed(self) -> bool:
"""Check if the request is completed."""
return self.processing_stage == ProcessingStage.COMPLETED
def to_dict(self) -> Dict[str, Any]:
"""Convert the request to a dictionary for serialization."""
return {
'request_id': self.request_id,
'request_type': self.request_type.value,
'processing_stage': self.processing_stage.value,
'prompt': self.prompt,
'prompt_token_ids': self.prompt_token_ids,
'output_format': self.output_format,
'multimodal_inputs_count': len(self.multimodal_inputs),
'diffusion_params': self.diffusion_params.__dict__ if self.diffusion_params else None,
'stage_results': list(self.stage_results.keys()),
'has_errors': self.has_errors(),
'retry_count': self.retry_count,
'processing_time': self.get_processing_time()
}
def __repr__(self) -> str:
"""String representation of the request."""
return (f"OmniRequest(id={self.request_id}, "
f"type={self.request_type.value}, "
f"stage={self.processing_stage.value}, "
f"multimodal_inputs={len(self.multimodal_inputs)})")
@classmethod
def from_engine_core_request(cls, request: OmniEngineCoreRequest) -> "Request":
if request.mm_inputs is not None:
assert isinstance(request.mm_inputs, list)
assert is_list_of(request.mm_inputs, MultiModalKwargs), (
"mm_inputs was not updated in EngineCore.add_request")
# Factory functions for creating different types of requests
def create_text_request(
request_id: str,
prompt: str,
sampling_params: Optional[Any] = None,
**kwargs
) -> OmniRequest:
"""Create a text-only request."""
return OmniRequest(
request_id=request_id,
prompt=prompt,
request_type=RequestType.TEXT,
sampling_params=sampling_params,
**kwargs
)
def create_image_request(
request_id: str,
prompt: str,
image_data: Any,
diffusion_params: Optional[DiffusionParams] = None,
**kwargs
) -> OmniRequest:
"""Create an image generation request."""
multimodal_input = MultimodalData(
data_type="image",
data=image_data,
metadata={"is_input": True}
)
return OmniRequest(
request_id=request_id,
prompt=prompt,
request_type=RequestType.IMAGE,
multimodal_inputs=[multimodal_input],
diffusion_params=diffusion_params,
output_format="image",
**kwargs
)
def create_multimodal_request(
request_id: str,
prompt: str,
multimodal_inputs: List[MultimodalData],
**kwargs
) -> OmniRequest:
"""Create a multimodal request."""
return OmniRequest(
request_id=request_id,
prompt=prompt,
request_type=RequestType.MULTIMODAL,
multimodal_inputs=multimodal_inputs,
**kwargs
)
def create_diffusion_request(
request_id: str,
prompt: str,
diffusion_params: DiffusionParams,
**kwargs
) -> OmniRequest:
"""Create a diffusion model request."""
return OmniRequest(
request_id=request_id,
prompt=prompt,
request_type=RequestType.DIFFUSION,
diffusion_params=diffusion_params,
**kwargs
)
return cls(
request_id=request.request_id,
client_index=request.client_index,
prompt_token_ids=request.prompt_token_ids,
multi_modal_inputs=request.mm_inputs,
multi_modal_hashes=request.mm_hashes,
multi_modal_placeholders=request.mm_placeholders,
sampling_params=request.sampling_params,
pooling_params=request.pooling_params,
eos_token_id=request.eos_token_id,
arrival_time=request.arrival_time,
lora_request=request.lora_request,
structured_output_request=StructuredOutputRequest(
sampling_params=request.sampling_params) \
if request.sampling_params else None,
cache_salt=request.cache_salt,
priority=request.priority,
prompt_embeds=request.prompt_embeds,
additional_information=request.additional_information,
)