Russell Bryant e489ad7a21
[Misc] Add SPDX-License-Identifier headers to python source files (#12628)
- **Add SPDX license headers to python source files**
- **Check for SPDX headers using pre-commit**

commit 9d7ef44c3cfb72ca4c32e1c677d99259d10d4745
Author: Russell Bryant <rbryant@redhat.com>
Date:   Fri Jan 31 14:18:24 2025 -0500

    Add SPDX license headers to python source files
    
This commit adds SPDX license headers to python source files as
recommended to
the project by the Linux Foundation. These headers provide a concise way
that is
both human and machine readable for communicating license information
for each
source file. It helps avoid any ambiguity about the license of the code
and can
    also be easily used by tools to help manage license compliance.
    
The Linux Foundation runs license scans against the codebase to help
ensure
    we are in compliance with the licenses of the code we use, including
dependencies. Having these headers in place helps that tool do its job.
    
    More information can be found on the SPDX site:
    
    - https://spdx.dev/learn/handling-license-info/
    
    Signed-off-by: Russell Bryant <rbryant@redhat.com>

commit 5a1cf1cb3b80759131c73f6a9dddebccac039dea
Author: Russell Bryant <rbryant@redhat.com>
Date:   Fri Jan 31 14:36:32 2025 -0500

    Check for SPDX headers using pre-commit
    
    Signed-off-by: Russell Bryant <rbryant@redhat.com>

---------

Signed-off-by: Russell Bryant <rbryant@redhat.com>
2025-02-02 11:58:18 -08:00

106 lines
2.7 KiB
Python

# SPDX-License-Identifier: Apache-2.0
from abc import ABC, abstractmethod
from typing import Any, Callable, Dict, Optional, TypeVar
from torch import nn
from vllm.logger import init_logger
from vllm.utils import LRUCache
logger = init_logger(__name__)
class AdapterModel(ABC):
def __init__(self, model_id=None):
self.id = model_id
@abstractmethod
def from_local_checkpoint(cls, model_dir, model_id=None, **kwargs):
# Common initialization code
# Load weights or embeddings from local checkpoint
raise NotImplementedError("Subclasses must implement this method.")
T = TypeVar('T')
class AdapterLRUCache(LRUCache[int, T]):
def __init__(self, capacity: int, deactivate_fn: Callable[[int], object]):
super().__init__(capacity)
self.deactivate_fn = deactivate_fn
def _on_remove(self, key: int, value: Optional[T]):
logger.debug("Removing adapter int id: %d", key)
self.deactivate_fn(key)
return super()._on_remove(key, value)
class AdapterModelManager(ABC):
def __init__(
self,
model: nn.Module,
):
"""Create a AdapterModelManager and adapter for a given model.
Args:
model: the model to be adapted.
"""
self.model: nn.Module = model
self._registered_adapters: Dict[int, Any] = {}
# Dict instead of a Set for compatibility with LRUCache.
self._active_adapters: Dict[int, None] = {}
self.adapter_type = 'Adapter'
self._last_mapping = None
def __len__(self) -> int:
return len(self._registered_adapters)
@property
@abstractmethod
def adapter_slots(self) -> int:
raise NotImplementedError
@property
@abstractmethod
def capacity(self) -> int:
raise NotImplementedError
@abstractmethod
def activate_adapter(self, adapter_id: int) -> bool:
raise NotImplementedError
@abstractmethod
def deactivate_adapter(self, adapter_id: int) -> bool:
raise NotImplementedError
@abstractmethod
def add_adapter(self, adapter: Any) -> bool:
raise NotImplementedError
@abstractmethod
def set_adapter_mapping(self, mapping: Any) -> None:
raise NotImplementedError
@abstractmethod
def remove_adapter(self, adapter_id: int) -> bool:
raise NotImplementedError
@abstractmethod
def remove_all_adapters(self) -> None:
raise NotImplementedError
@abstractmethod
def get_adapter(self, adapter_id: int) -> Optional[Any]:
raise NotImplementedError
@abstractmethod
def list_adapters(self) -> Dict[int, Any]:
raise NotImplementedError
@abstractmethod
def pin_adapter(self, adapter_id: int) -> bool:
raise NotImplementedError