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# Copyright 2020 The HuggingFace Team. All rights reserved.
#
# 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.
# as due to their complexity multi-gpu tests could impact other tests, and to aid debug we have those in a separate module.
import os
import sys
from transformers.testing_utils import TestCasePlus, execute_subprocess_async, get_gpu_count, require_torch_gpu, slow
from .utils import load_json
class TestSummarizationDistillerMultiGPU(TestCasePlus):
@classmethod
def setUpClass(cls):
return cls
@slow
@require_torch_gpu
def test_distributed_eval(self):
output_dir = self.get_auto_remove_tmp_dir()
args = f"""
--model_name Helsinki-NLP/opus-mt-en-ro
--save_dir {output_dir}
--data_dir {self.test_file_dir_str}/test_data/wmt_en_ro
--num_beams 2
--task translation
""".split()
# we want this test to run even if there is only one GPU, but if there are more we use them all
n_gpu = get_gpu_count()
distributed_args = f"""
-m torch.distributed.launch
--nproc_per_node={n_gpu}
{self.test_file_dir}/run_distributed_eval.py
""".split()
cmd = [sys.executable] + distributed_args + args
execute_subprocess_async(cmd, env=self.get_env())
metrics_save_path = os.path.join(output_dir, "test_bleu.json")
metrics = load_json(metrics_save_path)
# print(metrics)
self.assertGreaterEqual(metrics["bleu"], 25)
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