How to run srl with GPU

from allennlp.predictors.predictor import Predictor
predictor = Predictor.from_path("https://s3-us-west-2.amazonaws.com/allennlp/models/bert-base-srl-2019.06.17.tar.gz")
predictor.predict(
  sentence="Did Uriah honestly think he could beat the game in under three hours?"
)

The model is running with cpu defaultyly,how to run it using GPU?