Cyrus Leung 86ae693f20
[Deprecation][2/N] Replace --task with --runner and --convert (#21470)
Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
Co-authored-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
2025-07-27 19:42:40 -07:00

53 lines
1.4 KiB
Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
from argparse import Namespace
from vllm import LLM, EngineArgs
from vllm.utils import FlexibleArgumentParser
def parse_args():
parser = FlexibleArgumentParser()
parser = EngineArgs.add_cli_args(parser)
# Set example specific arguments
parser.set_defaults(
model="jason9693/Qwen2.5-1.5B-apeach",
runner="pooling",
enforce_eager=True,
)
return parser.parse_args()
def main(args: Namespace):
# Sample prompts.
prompts = [
"Hello, my name is",
"The president of the United States is",
"The capital of France is",
"The future of AI is",
]
# Create an LLM.
# You should pass runner="pooling" for classification models
llm = LLM(**vars(args))
# Generate logits. The output is a list of ClassificationRequestOutputs.
outputs = llm.classify(prompts)
# Print the outputs.
print("\nGenerated Outputs:\n" + "-" * 60)
for prompt, output in zip(prompts, outputs):
probs = output.outputs.probs
probs_trimmed = (str(probs[:16])[:-1] + ", ...]") if len(probs) > 16 else probs
print(
f"Prompt: {prompt!r} \n"
f"Class Probabilities: {probs_trimmed} (size={len(probs)})"
)
print("-" * 60)
if __name__ == "__main__":
args = parse_args()
main(args)