main.py 2.65 KB
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# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION.  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.

"""Main tasks functionality."""

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from megatron.initialize import initialize_megatron
from megatron import get_args
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import os
import sys
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__),
                                             os.path.pardir)))


def get_tasks_args(parser):
    """Provide extra arguments required for tasks."""
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    group = parser.add_argument_group(title='tasks')

    group.add_argument('--task', type=str, required=True,
                       help='Task name.')
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    group.add_argument('--epochs', type=int, default=None,
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                       help='Number of finetunning epochs. Zero results in '
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                       'evaluation only.')
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    group.add_argument('--pretrained-checkpoint', type=str, default=None,
                       help='Pretrained checkpoint used for finetunning.')
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    group.add_argument('--keep-last', action='store_true',
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                       help='Keep the last batch (maybe incomplete) in'
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                       'the data loader')
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    group.add_argument('--train-data', nargs='+', default=None,
                       help='Whitespace separated paths or corpora names '
                       'for training.')
    group.add_argument('--valid-data', nargs='*', default=None,
                       help='path(s) to the validation data.')
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    group.add_argument('--overlapping-eval', type=int, default=32,
                       help='Sliding window for overlapping evaluation.')
    group.add_argument('--strict-lambada', action='store_true',
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                       help='Use more difficult formulation of lambada.')
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    return parser


if __name__ == '__main__':

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    initialize_megatron(extra_args_provider=get_tasks_args)
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    args = get_args()
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    if args.task == 'RACE':
        from race.finetune import main
    elif args.task in ['MNLI', 'QQP']:
        from glue.finetune import main
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    elif args.task in ['LAMBADA', 'WIKITEXT103']:
        from zeroshot_gpt2.evaluate import main
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    else:
        raise NotImplementedError('Task {} is not implemented.'.format(
            args.task))

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    main()