import pytest import torch import platform import os import fnmatch try: from torchvision.models.feature_extraction import create_feature_extractor, get_graph_node_names, NodePathTracer has_fx_feature_extraction = True except ImportError: has_fx_feature_extraction = False import timm from timm import list_models, create_model, set_scriptable, has_pretrained_cfg_key, is_pretrained_cfg_key, \ get_pretrained_cfg_value from timm.models.fx_features import _leaf_modules, _autowrap_functions if hasattr(torch._C, '_jit_set_profiling_executor'): # legacy executor is too slow to compile large models for unit tests # no need for the fusion performance here torch._C._jit_set_profiling_executor(True) torch._C._jit_set_profiling_mode(False) # transformer models don't support many of the spatial / feature based model functionalities NON_STD_FILTERS = [ 'vit_*', 'tnt_*', 'pit_*', 'swin_*', 'coat_*', 'cait_*', '*mixer_*', 'gmlp_*', 'resmlp_*', 'twins_*', 'convit_*', 'levit*', 'visformer*', 'deit*', 'jx_nest_*', 'nest_*', 'xcit_*', 'crossvit_*', 'beit_*', 'poolformer_*', 'volo_*'] NUM_NON_STD = len(NON_STD_FILTERS) # exclude models that cause specific test failures if 'GITHUB_ACTIONS' in os.environ: # GitHub Linux runner is slower and hits memory limits sooner than MacOS, exclude bigger models EXCLUDE_FILTERS = [ '*efficientnet_l2*', '*resnext101_32x48d', '*in21k', '*152x4_bitm', '*101x3_bitm', '*50x3_bitm', '*nfnet_f3*', '*nfnet_f4*', '*nfnet_f5*', '*nfnet_f6*', '*nfnet_f7*', '*efficientnetv2_xl*', '*resnetrs350*', '*resnetrs420*', 'xcit_large_24_p8*', 'vit_huge*', 'vit_gi*', 'swin*huge*', 'swin*giant*'] NON_STD_EXCLUDE_FILTERS = ['vit_huge*', 'vit_gi*', 'swin*giant*'] else: EXCLUDE_FILTERS = [] NON_STD_EXCLUDE_FILTERS = ['vit_gi*'] TARGET_FWD_SIZE = MAX_FWD_SIZE = 384 TARGET_BWD_SIZE = 128 MAX_BWD_SIZE = 320 MAX_FWD_OUT_SIZE = 448 TARGET_JIT_SIZE = 128 MAX_JIT_SIZE = 320 TARGET_FFEAT_SIZE = 96 MAX_FFEAT_SIZE = 256 TARGET_FWD_FX_SIZE = 128 MAX_FWD_FX_SIZE = 224 TARGET_BWD_FX_SIZE = 128 MAX_BWD_FX_SIZE = 224 def _get_input_size(model=None, model_name='', target=None): if model is None: assert model_name, "One of model or model_name must be provided" input_size = get_pretrained_cfg_value(model_name, 'input_size') fixed_input_size = get_pretrained_cfg_value(model_name, 'fixed_input_size') min_input_size = get_pretrained_cfg_value(model_name, 'min_input_size') else: default_cfg = model.default_cfg input_size = default_cfg['input_size'] fixed_input_size = default_cfg.get('fixed_input_size', None) min_input_size = default_cfg.get('min_input_size', None) assert input_size is not None if fixed_input_size: return input_size if min_input_size: if target and max(input_size) > target: input_size = min_input_size else: if target and max(input_size) > target: input_size = tuple([min(x, target) for x in input_size]) return input_size @pytest.mark.timeout(120) @pytest.mark.parametrize('model_name', list_models(exclude_filters=EXCLUDE_FILTERS)) @pytest.mark.parametrize('batch_size', [1]) def test_model_forward(model_name, batch_size): """Run a single forward pass with each model""" model = create_model(model_name, pretrained=False) model.eval() input_size = _get_input_size(model=model, target=TARGET_FWD_SIZE) if max(input_size) > MAX_FWD_SIZE: pytest.skip("Fixed input size model > limit.") inputs = torch.randn((batch_size, *input_size)) outputs = model(inputs) assert outputs.shape[0] == batch_size assert not torch.isnan(outputs).any(), 'Output included NaNs' @pytest.mark.timeout(120) @pytest.mark.parametrize('model_name', list_models(exclude_filters=EXCLUDE_FILTERS, name_matches_cfg=True)) @pytest.mark.parametrize('batch_size', [2]) def test_model_backward(model_name, batch_size): """Run a single forward pass with each model""" input_size = _get_input_size(model_name=model_name, target=TARGET_BWD_SIZE) if max(input_size) > MAX_BWD_SIZE: pytest.skip("Fixed input size model > limit.") model = create_model(model_name, pretrained=False, num_classes=42) num_params = sum([x.numel() for x in model.parameters()]) model.train() inputs = torch.randn((batch_size, *input_size)) outputs = model(inputs) if isinstance(outputs, tuple): outputs = torch.cat(outputs) outputs.mean().backward() for n, x in model.named_parameters(): assert x.grad is not None, f'No gradient for {n}' num_grad = sum([x.grad.numel() for x in model.parameters() if x.grad is not None]) assert outputs.shape[-1] == 42 assert num_params == num_grad, 'Some parameters are missing gradients' assert not torch.isnan(outputs).any(), 'Output included NaNs' @pytest.mark.timeout(300) @pytest.mark.parametrize('model_name', list_models(exclude_filters=NON_STD_FILTERS)) @pytest.mark.parametrize('batch_size', [1]) def test_model_default_cfgs(model_name, batch_size): """Run a single forward pass with each model""" model = create_model(model_name, pretrained=False) model.eval() state_dict = model.state_dict() cfg = model.default_cfg pool_size = cfg['pool_size'] input_size = model.default_cfg['input_size'] if all([x <= MAX_FWD_OUT_SIZE for x in input_size]) and \ not any([fnmatch.fnmatch(model_name, x) for x in EXCLUDE_FILTERS]): # output sizes only checked if default res <= 448 * 448 to keep resource down input_size = tuple([min(x, MAX_FWD_OUT_SIZE) for x in input_size]) input_tensor = torch.randn((batch_size, *input_size)) # test forward_features (always unpooled) outputs = model.forward_features(input_tensor) assert outputs.shape[-1] == pool_size[-1] and outputs.shape[-2] == pool_size[-2], 'unpooled feature shape != config' # test forward after deleting the classifier, output should be poooled, size(-1) == model.num_features model.reset_classifier(0) outputs = model.forward(input_tensor) assert len(outputs.shape) == 2 assert outputs.shape[-1] == model.num_features # test model forward without pooling and classifier model.reset_classifier(0, '') # reset classifier and set global pooling to pass-through outputs = model.forward(input_tensor) assert len(outputs.shape) == 4 if not isinstance(model, (timm.models.MobileNetV3, timm.models.GhostNet, timm.models.VGG)): # mobilenetv3/ghostnet/vgg forward_features vs removed pooling differ due to location or lack of GAP assert outputs.shape[-1] == pool_size[-1] and outputs.shape[-2] == pool_size[-2] if 'pruned' not in model_name: # FIXME better pruned model handling # test classifier + global pool deletion via __init__ model = create_model(model_name, pretrained=False, num_classes=0, global_pool='').eval() outputs = model.forward(input_tensor) assert len(outputs.shape) == 4 if not isinstance(model, (timm.models.MobileNetV3, timm.models.GhostNet, timm.models.VGG)): assert outputs.shape[-1] == pool_size[-1] and outputs.shape[-2] == pool_size[-2] # check classifier name matches default_cfg if cfg.get('num_classes', None): classifier = cfg['classifier'] if not isinstance(classifier, (tuple, list)): classifier = classifier, for c in classifier: assert c + ".weight" in state_dict.keys(), f'{c} not in model params' # check first conv(s) names match default_cfg first_conv = cfg['first_conv'] if isinstance(first_conv, str): first_conv = (first_conv,) assert isinstance(first_conv, (tuple, list)) for fc in first_conv: assert fc + ".weight" in state_dict.keys(), f'{fc} not in model params' @pytest.mark.timeout(300) @pytest.mark.parametrize('model_name', list_models(filter=NON_STD_FILTERS, exclude_filters=NON_STD_EXCLUDE_FILTERS)) @pytest.mark.parametrize('batch_size', [1]) def test_model_default_cfgs_non_std(model_name, batch_size): """Run a single forward pass with each model""" model = create_model(model_name, pretrained=False) model.eval() state_dict = model.state_dict() cfg = model.default_cfg input_size = _get_input_size(model=model) if max(input_size) > 320: # FIXME const pytest.skip("Fixed input size model > limit.") input_tensor = torch.randn((batch_size, *input_size)) outputs = model.forward_features(input_tensor) if isinstance(outputs, (tuple, list)): # cannot currently verify multi-tensor output. pass else: feat_dim = -1 if outputs.ndim == 3 else 1 assert outputs.shape[feat_dim] == model.num_features # test forward after deleting the classifier, output should be poooled, size(-1) == model.num_features model.reset_classifier(0) outputs = model.forward(input_tensor) if isinstance(outputs, (tuple, list)): outputs = outputs[0] feat_dim = -1 if outputs.ndim == 3 else 1 assert outputs.shape[feat_dim] == model.num_features, 'pooled num_features != config' model = create_model(model_name, pretrained=False, num_classes=0).eval() outputs = model.forward(input_tensor) if isinstance(outputs, (tuple, list)): outputs = outputs[0] feat_dim = -1 if outputs.ndim == 3 else 1 assert outputs.shape[feat_dim] == model.num_features # check classifier name matches default_cfg if cfg.get('num_classes', None): classifier = cfg['classifier'] if not isinstance(classifier, (tuple, list)): classifier = classifier, for c in classifier: assert c + ".weight" in state_dict.keys(), f'{c} not in model params' # check first conv(s) names match default_cfg first_conv = cfg['first_conv'] if isinstance(first_conv, str): first_conv = (first_conv,) assert isinstance(first_conv, (tuple, list)) for fc in first_conv: assert fc + ".weight" in state_dict.keys(), f'{fc} not in model params' if 'GITHUB_ACTIONS' not in os.environ: @pytest.mark.timeout(120) @pytest.mark.parametrize('model_name', list_models(pretrained=True)) @pytest.mark.parametrize('batch_size', [1]) def test_model_load_pretrained(model_name, batch_size): """Create that pretrained weights load, verify support for in_chans != 3 while doing so.""" in_chans = 3 if 'pruned' in model_name else 1 # pruning not currently supported with in_chans change create_model(model_name, pretrained=True, in_chans=in_chans, num_classes=5) create_model(model_name, pretrained=True, in_chans=in_chans, num_classes=0) @pytest.mark.timeout(120) @pytest.mark.parametrize('model_name', list_models(pretrained=True, exclude_filters=NON_STD_FILTERS)) @pytest.mark.parametrize('batch_size', [1]) def test_model_features_pretrained(model_name, batch_size): """Create that pretrained weights load when features_only==True.""" create_model(model_name, pretrained=True, features_only=True) EXCLUDE_JIT_FILTERS = [ '*iabn*', 'tresnet*', # models using inplace abn unlikely to ever be scriptable 'dla*', 'hrnet*', 'ghostnet*', # hopefully fix at some point 'vit_large_*', 'vit_huge_*', 'vit_gi*', ] @pytest.mark.timeout(120) @pytest.mark.parametrize( 'model_name', list_models(exclude_filters=EXCLUDE_FILTERS + EXCLUDE_JIT_FILTERS, name_matches_cfg=True)) @pytest.mark.parametrize('batch_size', [1]) def test_model_forward_torchscript(model_name, batch_size): """Run a single forward pass with each model""" input_size = _get_input_size(model_name=model_name, target=TARGET_JIT_SIZE) if max(input_size) > MAX_JIT_SIZE: pytest.skip("Fixed input size model > limit.") with set_scriptable(True): model = create_model(model_name, pretrained=False) model.eval() model = torch.jit.script(model) outputs = model(torch.randn((batch_size, *input_size))) assert outputs.shape[0] == batch_size assert not torch.isnan(outputs).any(), 'Output included NaNs' EXCLUDE_FEAT_FILTERS = [ '*pruned*', # hopefully fix at some point ] + NON_STD_FILTERS if 'GITHUB_ACTIONS' in os.environ: # and 'Linux' in platform.system(): # GitHub Linux runner is slower and hits memory limits sooner than MacOS, exclude bigger models EXCLUDE_FEAT_FILTERS += ['*resnext101_32x32d', '*resnext101_32x16d'] @pytest.mark.timeout(120) @pytest.mark.parametrize('model_name', list_models(exclude_filters=EXCLUDE_FILTERS + EXCLUDE_FEAT_FILTERS)) @pytest.mark.parametrize('batch_size', [1]) def test_model_forward_features(model_name, batch_size): """Run a single forward pass with each model in feature extraction mode""" model = create_model(model_name, pretrained=False, features_only=True) model.eval() expected_channels = model.feature_info.channels() assert len(expected_channels) >= 4 # all models here should have at least 4 feature levels by default, some 5 or 6 input_size = _get_input_size(model=model, target=TARGET_FFEAT_SIZE) if max(input_size) > MAX_FFEAT_SIZE: pytest.skip("Fixed input size model > limit.") outputs = model(torch.randn((batch_size, *input_size))) assert len(expected_channels) == len(outputs) for e, o in zip(expected_channels, outputs): assert e == o.shape[1] assert o.shape[0] == batch_size assert not torch.isnan(o).any() def _create_fx_model(model, train=False): # This block of code does a bit of juggling to handle any case where there are multiple outputs in train mode # So we trace once and look at the graph, and get the indices of the nodes that lead into the original fx output # node. Then we use those indices to select from train_nodes returned by torchvision get_graph_node_names tracer_kwargs = dict( leaf_modules=list(_leaf_modules), autowrap_functions=list(_autowrap_functions), #enable_cpatching=True, param_shapes_constant=True ) train_nodes, eval_nodes = get_graph_node_names(model, tracer_kwargs=tracer_kwargs) eval_return_nodes = [eval_nodes[-1]] train_return_nodes = [train_nodes[-1]] if train: tracer = NodePathTracer(**tracer_kwargs) graph = tracer.trace(model) graph_nodes = list(reversed(graph.nodes)) output_node_names = [n.name for n in graph_nodes[0]._input_nodes.keys()] graph_node_names = [n.name for n in graph_nodes] output_node_indices = [-graph_node_names.index(node_name) for node_name in output_node_names] train_return_nodes = [train_nodes[ix] for ix in output_node_indices] fx_model = create_feature_extractor( model, train_return_nodes=train_return_nodes, eval_return_nodes=eval_return_nodes, tracer_kwargs=tracer_kwargs, ) return fx_model EXCLUDE_FX_FILTERS = ['vit_gi*'] # not enough memory to run fx on more models than other tests if 'GITHUB_ACTIONS' in os.environ: EXCLUDE_FX_FILTERS += [ 'beit_large*', 'mixer_l*', '*nfnet_f2*', '*resnext101_32x32d', 'resnetv2_152x2*', 'resmlp_big*', 'resnetrs270', 'swin_large*', 'vgg*', 'vit_large*', 'vit_base_patch8*', 'xcit_large*', ] @pytest.mark.timeout(120) @pytest.mark.parametrize('model_name', list_models(exclude_filters=EXCLUDE_FILTERS + EXCLUDE_FX_FILTERS)) @pytest.mark.parametrize('batch_size', [1]) def test_model_forward_fx(model_name, batch_size): """ Symbolically trace each model and run single forward pass through the resulting GraphModule Also check that the output of a forward pass through the GraphModule is the same as that from the original Module """ if not has_fx_feature_extraction: pytest.skip("Can't test FX. Torch >= 1.10 and Torchvision >= 0.11 are required.") model = create_model(model_name, pretrained=False) model.eval() input_size = _get_input_size(model=model, target=TARGET_FWD_FX_SIZE) if max(input_size) > MAX_FWD_FX_SIZE: pytest.skip("Fixed input size model > limit.") with torch.no_grad(): inputs = torch.randn((batch_size, *input_size)) outputs = model(inputs) if isinstance(outputs, tuple): outputs = torch.cat(outputs) model = _create_fx_model(model) fx_outputs = tuple(model(inputs).values()) if isinstance(fx_outputs, tuple): fx_outputs = torch.cat(fx_outputs) assert torch.all(fx_outputs == outputs) assert outputs.shape[0] == batch_size assert not torch.isnan(outputs).any(), 'Output included NaNs' @pytest.mark.timeout(120) @pytest.mark.parametrize('model_name', list_models( exclude_filters=EXCLUDE_FILTERS + EXCLUDE_FX_FILTERS, name_matches_cfg=True)) @pytest.mark.parametrize('batch_size', [2]) def test_model_backward_fx(model_name, batch_size): """Symbolically trace each model and run single backward pass through the resulting GraphModule""" if not has_fx_feature_extraction: pytest.skip("Can't test FX. Torch >= 1.10 and Torchvision >= 0.11 are required.") input_size = _get_input_size(model_name=model_name, target=TARGET_BWD_FX_SIZE) if max(input_size) > MAX_BWD_FX_SIZE: pytest.skip("Fixed input size model > limit.") model = create_model(model_name, pretrained=False, num_classes=42) model.train() num_params = sum([x.numel() for x in model.parameters()]) if 'GITHUB_ACTIONS' in os.environ and num_params > 100e6: pytest.skip("Skipping FX backward test on model with more than 100M params.") model = _create_fx_model(model, train=True) outputs = tuple(model(torch.randn((batch_size, *input_size))).values()) if isinstance(outputs, tuple): outputs = torch.cat(outputs) outputs.mean().backward() for n, x in model.named_parameters(): assert x.grad is not None, f'No gradient for {n}' num_grad = sum([x.grad.numel() for x in model.parameters() if x.grad is not None]) assert outputs.shape[-1] == 42 assert num_params == num_grad, 'Some parameters are missing gradients' assert not torch.isnan(outputs).any(), 'Output included NaNs' if 'GITHUB_ACTIONS' not in os.environ: # FIXME this test is causing GitHub actions to run out of RAM and abruptly kill the test process # reason: model is scripted after fx tracing, but beit has torch.jit.is_scripting() control flow EXCLUDE_FX_JIT_FILTERS = [ 'deit_*_distilled_patch16_224', 'levit*', 'pit_*_distilled_224', ] + EXCLUDE_FX_FILTERS @pytest.mark.timeout(120) @pytest.mark.parametrize( 'model_name', list_models( exclude_filters=EXCLUDE_FILTERS + EXCLUDE_JIT_FILTERS + EXCLUDE_FX_JIT_FILTERS, name_matches_cfg=True)) @pytest.mark.parametrize('batch_size', [1]) def test_model_forward_fx_torchscript(model_name, batch_size): """Symbolically trace each model, script it, and run single forward pass""" if not has_fx_feature_extraction: pytest.skip("Can't test FX. Torch >= 1.10 and Torchvision >= 0.11 are required.") input_size = _get_input_size(model_name=model_name, target=TARGET_JIT_SIZE) if max(input_size) > MAX_JIT_SIZE: pytest.skip("Fixed input size model > limit.") with set_scriptable(True): model = create_model(model_name, pretrained=False) model.eval() model = torch.jit.script(_create_fx_model(model)) with torch.no_grad(): outputs = tuple(model(torch.randn((batch_size, *input_size))).values()) if isinstance(outputs, tuple): outputs = torch.cat(outputs) assert outputs.shape[0] == batch_size assert not torch.isnan(outputs).any(), 'Output included NaNs'