# coding=utf-8
# Copyright (c) 2020, 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."""

import os
import sys
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__),
                                             os.path.pardir)))

from tasks.tasks_args import get_tasks_args
from megatron import get_args
from megatron.initialize import initialize_megatron


if __name__ == '__main__':

    initialize_megatron(extra_args_provider=get_tasks_args)

    args = get_args()

    if args.num_layers_per_virtual_pipeline_stage is not None:
        print("Interleaved pipeline schedule is not yet supported for downstream tasks.")
        exit()

    if args.task == 'RACE':
        from race.finetune import main
    elif args.task in ['MNLI', 'QQP']:
        from glue.finetune import main
    elif args.task in ['LAMBADA', 'WIKITEXT103']:
        from zeroshot_gpt.evaluate import main
    elif args.task in ['ICT-ZEROSHOT-NQ']:
        from orqa.evaluate_orqa import main
    else:
        raise NotImplementedError('Task {} is not implemented.'.format(
            args.task))

    main()