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# Owner(s): ["oncall: distributed"]
# Copyright 2019 Kakao Brain
#
# Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
#
# This source code is licensed under the BSD license found in the
# LICENSE file in the root directory of this source tree.
import pytest
from torch import nn
from torch.distributed.pipeline.sync.skip import Namespace, skippable, verify_skippables
def test_matching():
@skippable(stash=["foo"])
class Layer1(nn.Module):
pass
@skippable(pop=["foo"])
class Layer2(nn.Module):
pass
verify_skippables(nn.Sequential(Layer1(), Layer2()))
def test_stash_not_pop():
@skippable(stash=["foo"])
class Layer1(nn.Module):
pass
with pytest.raises(TypeError) as e:
verify_skippables(nn.Sequential(Layer1()))
assert "no module declared 'foo' as poppable but stashed" in str(e.value)
def test_pop_unknown():
@skippable(pop=["foo"])
class Layer1(nn.Module):
pass
with pytest.raises(TypeError) as e:
verify_skippables(nn.Sequential(Layer1()))
assert "'0' declared 'foo' as poppable but it was not stashed" in str(e.value)
def test_stash_again():
@skippable(stash=["foo"])
class Layer1(nn.Module):
pass
@skippable(stash=["foo"])
class Layer2(nn.Module):
pass
@skippable(pop=["foo"])
class Layer3(nn.Module):
pass
with pytest.raises(TypeError) as e:
verify_skippables(nn.Sequential(Layer1(), Layer2(), Layer3()))
assert "'1' redeclared 'foo' as stashable" in str(e.value)
def test_pop_again():
@skippable(stash=["foo"])
class Layer1(nn.Module):
pass
@skippable(pop=["foo"])
class Layer2(nn.Module):
pass
@skippable(pop=["foo"])
class Layer3(nn.Module):
pass
with pytest.raises(TypeError) as e:
verify_skippables(nn.Sequential(Layer1(), Layer2(), Layer3()))
assert "'2' redeclared 'foo' as poppable" in str(e.value)
def test_stash_pop_together_different_names():
@skippable(stash=["foo"])
class Layer1(nn.Module):
pass
@skippable(pop=["foo"], stash=["bar"])
class Layer2(nn.Module):
pass
@skippable(pop=["bar"])
class Layer3(nn.Module):
pass
verify_skippables(nn.Sequential(Layer1(), Layer2(), Layer3()))
def test_stash_pop_together_same_name():
@skippable(stash=["foo"], pop=["foo"])
class Layer1(nn.Module):
pass
with pytest.raises(TypeError) as e:
verify_skippables(nn.Sequential(Layer1()))
assert "'0' declared 'foo' both as stashable and as poppable" in str(e.value)
def test_double_stash_pop():
@skippable(stash=["foo"])
class Layer1(nn.Module):
pass
@skippable(pop=["foo"])
class Layer2(nn.Module):
pass
@skippable(stash=["foo"])
class Layer3(nn.Module):
pass
@skippable(pop=["foo"])
class Layer4(nn.Module):
pass
with pytest.raises(TypeError) as e:
verify_skippables(nn.Sequential(Layer1(), Layer2(), Layer3(), Layer4()))
assert "'2' redeclared 'foo' as stashable" in str(e.value)
assert "'3' redeclared 'foo' as poppable" in str(e.value)
def test_double_stash_pop_but_isolated():
@skippable(stash=["foo"])
class Layer1(nn.Module):
pass
@skippable(pop=["foo"])
class Layer2(nn.Module):
pass
@skippable(stash=["foo"])
class Layer3(nn.Module):
pass
@skippable(pop=["foo"])
class Layer4(nn.Module):
pass
ns1 = Namespace()
ns2 = Namespace()
verify_skippables(
nn.Sequential(Layer1().isolate(ns1), Layer2().isolate(ns1), Layer3().isolate(ns2), Layer4().isolate(ns2),)
)
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