Files
vllm/vllm/platforms/neuron.py
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

58 lines
1.8 KiB
Python

# SPDX-License-Identifier: Apache-2.0
from typing import TYPE_CHECKING, Optional
from vllm.logger import init_logger
from .interface import Platform, PlatformEnum
if TYPE_CHECKING:
from vllm.config import VllmConfig
else:
VllmConfig = None
logger = init_logger(__name__)
class NeuronPlatform(Platform):
_enum = PlatformEnum.NEURON
device_name: str = "neuron"
device_type: str = "neuron"
ray_device_key: str = "neuron_cores"
supported_quantization: list[str] = ["neuron_quant"]
device_control_env_var: str = "NEURON_RT_VISIBLE_CORES"
@classmethod
def get_device_name(cls, device_id: int = 0) -> str:
return "neuron"
@classmethod
def is_async_output_supported(cls, enforce_eager: Optional[bool]) -> bool:
return False
@classmethod
def check_and_update_config(cls, vllm_config: VllmConfig) -> None:
parallel_config = vllm_config.parallel_config
if parallel_config.worker_cls == "auto":
parallel_config.worker_cls = \
"vllm.worker.neuron_worker.NeuronWorker"
if parallel_config.world_size > 1:
parallel_config.distributed_executor_backend = "uni"
assert (vllm_config.lora_config
is None), "LoRA is not supported for Neuron backend."
assert (not vllm_config.speculative_config
), "Speculative decoding not yet supported for Neuron backend."
cache_config = vllm_config.cache_config
if cache_config:
# neuron needs block_size = max_model_len
vllm_config.cache_config.block_size = \
vllm_config.model_config.max_model_len
@classmethod
def is_pin_memory_available(cls) -> bool:
logger.warning("Pin memory is not supported on Neuron.")
return False