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b386992 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | # Copyright (c) 2025, 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.
from nemo import lightning as nl
class TestFabricConversion:
def test_simple_conversion(self):
trainer = nl.Trainer(
devices=1,
accelerator="cpu",
strategy=nl.MegatronStrategy(tensor_model_parallel_size=2),
plugins=nl.MegatronMixedPrecision(precision='16-mixed'),
)
fabric = trainer.to_fabric()
assert isinstance(fabric.strategy, nl.FabricMegatronStrategy)
assert fabric.strategy.tensor_model_parallel_size == 2
assert isinstance(fabric._precision, nl.FabricMegatronMixedPrecision)
assert fabric._precision.precision == '16-mixed'
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