Remove PyTorch version larger equal in Retiarii (#4622)

nni/retiarii/nn/pytorch/.gitignore

+_nn.py

nni/retiarii/nn/pytorch/__init__.py

+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
 from .api import *
 from .component import *
 from .nn import *
-from .hypermodule import *
+from .hypermodule import *
\ No newline at end of file

nni/retiarii/nn/pytorch/api.py

@@ -12,7 +12,7 @@ import torch.nn as nn
 from nni.common.serializer import Translatable
 from nni.retiarii.serializer import basic_unit
 from nni.retiarii.utils import STATE_DICT_PY_MAPPING_PARTIAL
-from .utils import Mutable, generate_new_label, get_fixed_value
+from .mutation_utils import Mutable, generate_new_label, get_fixed_value
 
 
 __all__ = ['LayerChoice', 'InputChoice', 'ValueChoice', 'Placeholder', 'ChosenInputs']

nni/retiarii/nn/pytorch/cell.py

@@ -10,8 +10,8 @@ import torch
 import torch.nn as nn
 
 from .api import ChosenInputs, LayerChoice, InputChoice
-from .nn import ModuleList
-from .utils import generate_new_label
+from .nn import ModuleList  # pylint: disable=no-name-in-module
+from .mutation_utils import generate_new_label
 
 
 class _ListIdentity(nn.Identity):

nni/retiarii/nn/pytorch/component.py

@@ -10,7 +10,7 @@ from nni.retiarii.utils import STATE_DICT_PY_MAPPING_PARTIAL
 from .api import LayerChoice
 from .cell import Cell
 from .nasbench101 import NasBench101Cell, NasBench101Mutator
-from .utils import Mutable, generate_new_label, get_fixed_value
+from .mutation_utils import Mutable, generate_new_label, get_fixed_value
 
 
 __all__ = ['Repeat', 'Cell', 'NasBench101Cell', 'NasBench101Mutator', 'NasBench201Cell']

nni/retiarii/nn/pytorch/hypermodule.py

@@ -8,7 +8,7 @@ import torch.nn as nn
 from nni.retiarii.serializer import basic_unit
 
 from .api import LayerChoice
-from .utils import generate_new_label
+from .mutation_utils import generate_new_label
 
 __all__ = ['AutoActivation']
 

nni/retiarii/nn/pytorch/nasbench101.py

@@ -9,7 +9,7 @@ import torch.nn as nn
 from nni.retiarii.mutator import InvalidMutation, Mutator
 from nni.retiarii.graph import Model
 from .api import InputChoice, ValueChoice, LayerChoice
-from .utils import Mutable, generate_new_label, get_fixed_dict
+from .mutation_utils import Mutable, generate_new_label, get_fixed_dict
 
 _logger = logging.getLogger(__name__)
 

nni/retiarii/nn/pytorch/nn.py

 # Copyright (c) Microsoft Corporation.
 # Licensed under the MIT license.
 
-from packaging.version import Version
+import inspect
+import warnings
+from pathlib import Path
+
 import torch
 import torch.nn as nn
 
-from ...serializer import basic_unit
-
-# NOTE: support pytorch version >= 1.5.0
-
-__all__ = [
-    'Module', 'Sequential', 'ModuleList',  # TODO: 'ModuleDict', 'ParameterList', 'ParameterDict',
-    'Identity', 'Linear', 'Conv1d', 'Conv2d', 'Conv3d', 'ConvTranspose1d',
-    'ConvTranspose2d', 'ConvTranspose3d', 'Threshold', 'ReLU', 'Hardtanh', 'ReLU6',
-    'Sigmoid', 'Tanh', 'Softmax', 'Softmax2d', 'LogSoftmax', 'ELU', 'SELU', 'CELU', 'GLU', 'GELU', 'Hardshrink',
-    'LeakyReLU', 'LogSigmoid', 'Softplus', 'Softshrink', 'MultiheadAttention', 'PReLU', 'Softsign', 'Softmin',
-    'Tanhshrink', 'RReLU', 'AvgPool1d', 'AvgPool2d', 'AvgPool3d', 'MaxPool1d', 'MaxPool2d',
-    'MaxPool3d', 'MaxUnpool1d', 'MaxUnpool2d', 'MaxUnpool3d', 'FractionalMaxPool2d', "FractionalMaxPool3d",
-    'LPPool1d', 'LPPool2d', 'LocalResponseNorm', 'BatchNorm1d', 'BatchNorm2d', 'BatchNorm3d', 'InstanceNorm1d',
-    'InstanceNorm2d', 'InstanceNorm3d', 'LayerNorm', 'GroupNorm', 'SyncBatchNorm',
-    'Dropout', 'Dropout2d', 'Dropout3d', 'AlphaDropout', 'FeatureAlphaDropout',
-    'ReflectionPad1d', 'ReflectionPad2d', 'ReplicationPad2d', 'ReplicationPad1d', 'ReplicationPad3d',
-    'CrossMapLRN2d', 'Embedding', 'EmbeddingBag', 'RNNBase', 'RNN', 'LSTM', 'GRU', 'RNNCellBase', 'RNNCell',
-    'LSTMCell', 'GRUCell', 'PixelShuffle', 'Upsample', 'UpsamplingNearest2d', 'UpsamplingBilinear2d',
-    'PairwiseDistance', 'AdaptiveMaxPool1d', 'AdaptiveMaxPool2d', 'AdaptiveMaxPool3d', 'AdaptiveAvgPool1d',
-    'AdaptiveAvgPool2d', 'AdaptiveAvgPool3d', 'TripletMarginLoss', 'ZeroPad2d', 'ConstantPad1d', 'ConstantPad2d',
-    'ConstantPad3d', 'Bilinear', 'CosineSimilarity', 'Unfold', 'Fold',
-    'AdaptiveLogSoftmaxWithLoss', 'TransformerEncoder', 'TransformerDecoder',
-    'TransformerEncoderLayer', 'TransformerDecoderLayer', 'Transformer',
-    'Flatten', 'Hardsigmoid'
-]
-
-if Version(torch.__version__) >= Version('1.6.0'):
-    __all__.append('Hardswish')
-
-if Version(torch.__version__) >= Version('1.7.0'):
-    __all__.extend(['Unflatten', 'SiLU', 'TripletMarginWithDistanceLoss'])
-
-
-Module = nn.Module
-
-Sequential = nn.Sequential
-ModuleList = basic_unit(nn.ModuleList, basic_unit_tag=False)
-
-Identity = basic_unit(nn.Identity)
-Linear = basic_unit(nn.Linear)
-Conv1d = basic_unit(nn.Conv1d)
-Conv2d = basic_unit(nn.Conv2d)
-Conv3d = basic_unit(nn.Conv3d)
-ConvTranspose1d = basic_unit(nn.ConvTranspose1d)
-ConvTranspose2d = basic_unit(nn.ConvTranspose2d)
-ConvTranspose3d = basic_unit(nn.ConvTranspose3d)
-Threshold = basic_unit(nn.Threshold)
-ReLU = basic_unit(nn.ReLU)
-Hardtanh = basic_unit(nn.Hardtanh)
-ReLU6 = basic_unit(nn.ReLU6)
-Sigmoid = basic_unit(nn.Sigmoid)
-Tanh = basic_unit(nn.Tanh)
-Softmax = basic_unit(nn.Softmax)
-Softmax2d = basic_unit(nn.Softmax2d)
-LogSoftmax = basic_unit(nn.LogSoftmax)
-ELU = basic_unit(nn.ELU)
-SELU = basic_unit(nn.SELU)
-CELU = basic_unit(nn.CELU)
-GLU = basic_unit(nn.GLU)
-GELU = basic_unit(nn.GELU)
-Hardshrink = basic_unit(nn.Hardshrink)
-LeakyReLU = basic_unit(nn.LeakyReLU)
-LogSigmoid = basic_unit(nn.LogSigmoid)
-Softplus = basic_unit(nn.Softplus)
-Softshrink = basic_unit(nn.Softshrink)
-MultiheadAttention = basic_unit(nn.MultiheadAttention)
-PReLU = basic_unit(nn.PReLU)
-Softsign = basic_unit(nn.Softsign)
-Softmin = basic_unit(nn.Softmin)
-Tanhshrink = basic_unit(nn.Tanhshrink)
-RReLU = basic_unit(nn.RReLU)
-AvgPool1d = basic_unit(nn.AvgPool1d)
-AvgPool2d = basic_unit(nn.AvgPool2d)
-AvgPool3d = basic_unit(nn.AvgPool3d)
-MaxPool1d = basic_unit(nn.MaxPool1d)
-MaxPool2d = basic_unit(nn.MaxPool2d)
-MaxPool3d = basic_unit(nn.MaxPool3d)
-MaxUnpool1d = basic_unit(nn.MaxUnpool1d)
-MaxUnpool2d = basic_unit(nn.MaxUnpool2d)
-MaxUnpool3d = basic_unit(nn.MaxUnpool3d)
-FractionalMaxPool2d = basic_unit(nn.FractionalMaxPool2d)
-FractionalMaxPool3d = basic_unit(nn.FractionalMaxPool3d)
-LPPool1d = basic_unit(nn.LPPool1d)
-LPPool2d = basic_unit(nn.LPPool2d)
-LocalResponseNorm = basic_unit(nn.LocalResponseNorm)
-BatchNorm1d = basic_unit(nn.BatchNorm1d)
-BatchNorm2d = basic_unit(nn.BatchNorm2d)
-BatchNorm3d = basic_unit(nn.BatchNorm3d)
-InstanceNorm1d = basic_unit(nn.InstanceNorm1d)
-InstanceNorm2d = basic_unit(nn.InstanceNorm2d)
-InstanceNorm3d = basic_unit(nn.InstanceNorm3d)
-LayerNorm = basic_unit(nn.LayerNorm)
-GroupNorm = basic_unit(nn.GroupNorm)
-SyncBatchNorm = basic_unit(nn.SyncBatchNorm)
-Dropout = basic_unit(nn.Dropout)
-Dropout2d = basic_unit(nn.Dropout2d)
-Dropout3d = basic_unit(nn.Dropout3d)
-AlphaDropout = basic_unit(nn.AlphaDropout)
-FeatureAlphaDropout = basic_unit(nn.FeatureAlphaDropout)
-ReflectionPad1d = basic_unit(nn.ReflectionPad1d)
-ReflectionPad2d = basic_unit(nn.ReflectionPad2d)
-ReplicationPad2d = basic_unit(nn.ReplicationPad2d)
-ReplicationPad1d = basic_unit(nn.ReplicationPad1d)
-ReplicationPad3d = basic_unit(nn.ReplicationPad3d)
-CrossMapLRN2d = basic_unit(nn.CrossMapLRN2d)
-Embedding = basic_unit(nn.Embedding)
-EmbeddingBag = basic_unit(nn.EmbeddingBag)
-RNNBase = basic_unit(nn.RNNBase)
-RNN = basic_unit(nn.RNN)
-LSTM = basic_unit(nn.LSTM)
-GRU = basic_unit(nn.GRU)
-RNNCellBase = basic_unit(nn.RNNCellBase)
-RNNCell = basic_unit(nn.RNNCell)
-LSTMCell = basic_unit(nn.LSTMCell)
-GRUCell = basic_unit(nn.GRUCell)
-PixelShuffle = basic_unit(nn.PixelShuffle)
-Upsample = basic_unit(nn.Upsample)
-UpsamplingNearest2d = basic_unit(nn.UpsamplingNearest2d)
-UpsamplingBilinear2d = basic_unit(nn.UpsamplingBilinear2d)
-PairwiseDistance = basic_unit(nn.PairwiseDistance)
-AdaptiveMaxPool1d = basic_unit(nn.AdaptiveMaxPool1d)
-AdaptiveMaxPool2d = basic_unit(nn.AdaptiveMaxPool2d)
-AdaptiveMaxPool3d = basic_unit(nn.AdaptiveMaxPool3d)
-AdaptiveAvgPool1d = basic_unit(nn.AdaptiveAvgPool1d)
-AdaptiveAvgPool2d = basic_unit(nn.AdaptiveAvgPool2d)
-AdaptiveAvgPool3d = basic_unit(nn.AdaptiveAvgPool3d)
-TripletMarginLoss = basic_unit(nn.TripletMarginLoss)
-ZeroPad2d = basic_unit(nn.ZeroPad2d)
-ConstantPad1d = basic_unit(nn.ConstantPad1d)
-ConstantPad2d = basic_unit(nn.ConstantPad2d)
-ConstantPad3d = basic_unit(nn.ConstantPad3d)
-Bilinear = basic_unit(nn.Bilinear)
-CosineSimilarity = basic_unit(nn.CosineSimilarity)
-Unfold = basic_unit(nn.Unfold)
-Fold = basic_unit(nn.Fold)
-AdaptiveLogSoftmaxWithLoss = basic_unit(nn.AdaptiveLogSoftmaxWithLoss)
-TransformerEncoder = basic_unit(nn.TransformerEncoder)
-TransformerDecoder = basic_unit(nn.TransformerDecoder)
-TransformerEncoderLayer = basic_unit(nn.TransformerEncoderLayer)
-TransformerDecoderLayer = basic_unit(nn.TransformerDecoderLayer)
-Transformer = basic_unit(nn.Transformer)
-Flatten = basic_unit(nn.Flatten)
-Hardsigmoid = basic_unit(nn.Hardsigmoid)
-
-if Version(torch.__version__) >= Version('1.6.0'):
-    Hardswish = basic_unit(nn.Hardswish)
-
-if Version(torch.__version__) >= Version('1.7.0'):
-    SiLU = basic_unit(nn.SiLU)
-    Unflatten = basic_unit(nn.Unflatten)
-    TripletMarginWithDistanceLoss = basic_unit(nn.TripletMarginWithDistanceLoss)
+# To make auto-completion happy, we generate a _nn.py that lists out all the classes.
+
+nn_cache_file_path = Path(__file__).parent / '_nn.py'
+
+cache_valid = False
+
+if nn_cache_file_path.exists():
+    from . import _nn  # pylint: disable=no-name-in-module
+    # valid only when torch version match
+    if _nn._torch_version == torch.__version__:
+        cache_valid = True
+
+if not cache_valid:
+    _NO_WRAP_CLASSES = [
+        # not an nn.Module
+        'Parameter',
+        'ParameterList',
+        'UninitializedBuffer',
+        'UninitializedParameter',
+
+        # arguments are special
+        'Module',
+        'Sequential',
+
+        # utilities
+        'Container',
+        'DataParallel',
+    ]
+
+    _WRAP_WITHOUT_TAG_CLASSES = [
+        # special support on graph engine
+        'ModuleList',
+        'ModuleDict',
+    ]
+
+    code = [
+        '# This file is auto-generated to make auto-completion work.',
+        '# When pytorch version does not match, it will get automatically updated.',
+        '# pylint: skip-file',
+        f'_torch_version = "{torch.__version__}"',
+        'import torch.nn as nn',
+        'from nni.retiarii.serializer import basic_unit',
+    ]
+
+    all_names = []
+
+    # Add modules, classes, functions in torch.nn into this module.
+    for name, obj in inspect.getmembers(torch.nn):
+        if inspect.isclass(obj):
+            if name in _NO_WRAP_CLASSES:
+                code.append(f'{name} = nn.{name}')
+            elif not issubclass(obj, nn.Module):
+                # It should never go here
+                # We did it to play safe
+                warnings.warn(f'{obj} is found to be not a nn.Module, which is unexpected. '
+                              'It means your PyTorch version might not be supported.', RuntimeWarning)
+                code.append(f'{name} = nn.{name}')
+            elif name in _WRAP_WITHOUT_TAG_CLASSES:
+                code.append(f'{name} = basic_unit(nn.{name}, basic_unit_tag=False)')
+            else:
+                code.append(f'{name} = basic_unit(nn.{name})')
+
+            all_names.append(name)
+
+        elif inspect.isfunction(obj) or inspect.ismodule(obj):
+            code.append(f'{name} = nn.{name}')  # no modification
+            all_names.append(name)
+
+    code.append(f'__all__ = {all_names}')
+
+    with nn_cache_file_path.open('w') as fp:
+        fp.write('\n'.join(code))
+
+
+# Import all modules from generated _nn.py
+
+from . import _nn  # pylint: disable=no-name-in-module
+__all__ = _nn.__all__
+from ._nn import *  # pylint: disable=import-error, wildcard-import

nni/retiarii/serializer.py

@@ -170,7 +170,13 @@ def _torchscript_patch(cls) -> None:
         cls._get_nni_attr = torch.jit.ignore(cls._get_nni_attr)
     if hasattr(cls, 'trace_symbol'):
         # these must all exist or all non-exist
-        cls.trace_symbol = torch.jit.unused(cls.trace_symbol)
-        cls.trace_args = torch.jit.unused(cls.trace_args)
-        cls.trace_kwargs = torch.jit.unused(cls.trace_kwargs)
-        cls.trace_copy = torch.jit.ignore(cls.trace_copy)
+        try:
+            cls.trace_symbol = torch.jit.unused(cls.trace_symbol)
+            cls.trace_args = torch.jit.unused(cls.trace_args)
+            cls.trace_kwargs = torch.jit.unused(cls.trace_kwargs)
+            cls.trace_copy = torch.jit.ignore(cls.trace_copy)
+        except AttributeError as e:
+            if 'property' in str(e):
+                raise RuntimeError('Trace on PyTorch module failed. Your PyTorch version might be outdated. '
+                                   'Please try to upgrade PyTorch.')
+            raise

test/ut/retiarii/test_highlevel_apis.py

@@ -1001,3 +1001,10 @@ class Shared(unittest.TestCase):
         for _ in range(10):
             model = _apply_all_mutators(init_model, mutators, sampler)
             assert (model.evaluator.trace_kwargs['x'], model.evaluator.trace_kwargs['y']) in [(1, 2), (3, 4)]
+
+    def test_retiarii_nn_import(self):
+        dummy = torch.zeros(1, 16, 32, 24)
+        nn.init.uniform_(dummy)
+
+        conv = nn.Conv2d(1, 3, 1)
+        param = nn.Parameter(torch.zeros(1, 3, 24, 24))