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# Copyright 2022 Google. | |
# | |
# Licensed under the Apache License, Version 2.0 (the "License"); | |
# you may not use this file except in compliance with the License. | |
# You may obtain a copy of the License at | |
# | |
# http://www.apache.org/licenses/LICENSE-2.0 | |
# | |
# Unless required by applicable law or agreed to in writing, software | |
# distributed under the License is distributed on an "AS IS" BASIS, | |
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
# See the License for the specific language governing permissions and | |
# limitations under the License. | |
r"""Program to run a transformer model over a single article. | |
""" | |
# This program is currently a template, which can be expanded to do more | |
# sophisticated analysis. | |
from typing import Sequence | |
from absl import app | |
from absl import flags | |
from clu import platform | |
import jax | |
from transformer import inference_utils | |
from transformer import tasks # pylint: disable=unused-import | |
import tensorflow.compat.v2 as tf | |
flags.DEFINE_string("workdir", "", "Directory to save model checkpoints.") | |
flags.DEFINE_string("load_dir", "", "Directory to load pre-trained model.") | |
flags.DEFINE_integer("num_steps", 110, "Number of steps.") | |
flags.DEFINE_list( | |
"gin_search_paths", | |
["transformer/configs"], | |
"List of paths where the Gin config files are located.") | |
flags.DEFINE_multi_string( | |
"gin_file", ["base_htrans.gin"], "List of Gin config files.") | |
flags.DEFINE_multi_string( | |
"gin_param", None, "Newline separated list of Gin parameter bindings.") | |
FLAGS = flags.FLAGS | |
def main(argv: Sequence[str]) -> None: | |
if len(argv) > 1: | |
raise app.UsageError("Too many command-line arguments.") | |
# Hide any GPUs from TensorFlow. Otherwise TF might reserve memory and make | |
# it unavailable to JAX. | |
tf.config.experimental.set_visible_devices([], "GPU") | |
# Add a note so that we can tell which task is which JAX host. | |
# (Depending on the platform task 0 is not guaranteed to be host 0) | |
platform.work_unit().set_task_status(f"process_index: {jax.process_index()}, " | |
f"process_count: {jax.process_count()}") | |
platform.work_unit().create_artifact(platform.ArtifactType.DIRECTORY, | |
FLAGS.workdir, "workdir") | |
inference_utils.parse_gin_configuration(FLAGS.gin_file, FLAGS.gin_param, | |
gin_paths=FLAGS.gin_search_paths) | |
article_data = inference_utils.read_article(True) | |
(_, vocab) = article_data | |
(task, task_state, _) = inference_utils.create_model_and_task( | |
vocab, load_dir=FLAGS.load_dir) | |
outs = inference_utils.run_model(task, task_state, article_data, | |
verbose=True) | |
inference_utils.get_token_losses(outs) | |
if __name__ == "__main__": | |
app.run(main) | |