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tests/models/sam3/test_modeling_sam3.py
1 573 строки
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David Wu
Fix half-precision torch.compile crash in DETR-family sine position embeddings (#47238)
14 июл 2026, 16:17
Не верифицирован
14 июл 2026, 16:17
7c8b1d4
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# Copyright 2025 The HuggingFace Inc. team. 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. """Testing suite for the PyTorch SAM3 model.""" import gc import math import tempfile import unittest from transformers.image_utils import load_image from transformers.testing_utils import ( backend_empty_cache, require_deterministic_for_xpu, require_torch, slow, torch_device, ) from transformers.utils import is_torch_available from ...test_configuration_common import ConfigTester from ...test_modeling_common import ModelTesterMixin, floats_tensor from ...test_pipeline_mixin import PipelineTesterMixin from ...test_processing_common import url_to_local_path if is_torch_available(): import torch from torch import nn from transformers.models.sam3.configuration_sam3 import ( Sam3Config, Sam3DETRDecoderConfig, Sam3DETREncoderConfig, Sam3GeometryEncoderConfig, Sam3MaskDecoderConfig, Sam3VisionConfig, Sam3ViTConfig, ) from transformers.models.sam3.modeling_sam3 import Sam3Model, Sam3VisionModel from transformers.models.sam3.processing_sam3 import Sam3Processor class Sam3VisionModelTester: def __init__( self, parent, hidden_size=32, num_hidden_layers=2, num_attention_heads=4, intermediate_size=64, num_channels=3, image_size=224, patch_size=14, window_size=8, global_attn_indexes=None, fpn_hidden_size=32, scale_factors=None, batch_size=2, is_training=True, ): if global_attn_indexes is None: global_attn_indexes = [0, 1] if scale_factors is None: scale_factors = [4.0, 2.0, 1.0, 0.5] self.parent = parent self.hidden_size = hidden_size self.num_hidden_layers = num_hidden_layers self.num_attention_heads = num_attention_heads self.intermediate_size = intermediate_size self.num_channels = num_channels self.image_size = image_size self.patch_size = patch_size self.window_size = window_size self.global_attn_indexes = global_attn_indexes self.fpn_hidden_size = fpn_hidden_size self.scale_factors = scale_factors self.batch_size = batch_size self.is_training = is_training self.encoder_seq_length = 256 def get_config(self): backbone_config = Sam3ViTConfig( hidden_size=self.hidden_size, num_hidden_layers=self.num_hidden_layers, num_attention_heads=self.num_attention_heads, intermediate_size=self.intermediate_size, num_channels=self.num_channels, image_size=self.image_size, patch_size=self.patch_size, window_size=self.window_size, global_attn_indexes=self.global_attn_indexes, ) return Sam3VisionConfig( backbone_config=backbone_config, fpn_hidden_size=self.fpn_hidden_size, scale_factors=self.scale_factors, ) def prepare_config_and_inputs(self): pixel_values = floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size]) config = self.get_config() return config, pixel_values def create_and_check_model(self, config, pixel_values): model = Sam3VisionModel(config=config) model.to(torch_device) model.eval() with torch.no_grad(): result = model(pixel_values) # Check FPN outputs self.parent.assertEqual(len(result.fpn_hidden_states), len(self.scale_factors)) self.parent.assertEqual(len(result.fpn_position_encoding), len(self.scale_factors)) # Check last hidden state shape expected_seq_len = (self.image_size // self.patch_size) ** 2 self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, expected_seq_len, self.hidden_size)) def prepare_config_and_inputs_for_common(self): config_and_inputs = self.prepare_config_and_inputs() config, pixel_values = config_and_inputs inputs_dict = {"pixel_values": pixel_values} return config, inputs_dict @require_torch class Sam3VisionModelTest(ModelTesterMixin, unittest.TestCase): """ Tests for SAM3 Vision Model (ViT backbone + FPN neck). """ all_model_classes = (Sam3VisionModel,) if is_torch_available() else () test_resize_embeddings = False def setUp(self): self.model_tester = Sam3VisionModelTester(self) self.config_tester = ConfigTester(self, config_class=Sam3VisionConfig, has_text_modality=False) def test_config(self): self.config_tester.create_and_test_config_to_json_string() self.config_tester.create_and_test_config_to_json_file() self.config_tester.create_and_test_config_from_and_save_pretrained() self.config_tester.create_and_test_config_with_num_labels() self.config_tester.check_config_can_be_init_without_params() self.config_tester.check_config_arguments_init() @unittest.skip(reason="SAM3's vision encoder does not use inputs_embeds") def test_inputs_embeds(self): pass def test_model_get_set_embeddings(self): config, _ = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) self.assertIsInstance(model.get_input_embeddings(), (nn.Module)) x = model.get_output_embeddings() self.assertTrue(x is None or isinstance(x, nn.Linear)) def test_model(self): config_and_inputs = self.model_tester.prepare_config_and_inputs() self.model_tester.create_and_check_model(*config_and_inputs) def test_hidden_states_output(self): def check_hidden_states_output(inputs_dict, config, model_class): model = model_class(config) model.to(torch_device) model.eval() with torch.no_grad(): outputs = model(**self._prepare_for_class(inputs_dict, model_class)) # SAM3VisionModel doesn't return hidden_states in the same way as SAM2 # It returns last_hidden_state, fpn_hidden_states, and fpn_position_encoding self.assertIsNotNone(outputs.last_hidden_state) self.assertIsNotNone(outputs.fpn_hidden_states) config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: check_hidden_states_output(inputs_dict, config, model_class) def test_batching_equivalence(self, atol=5e-4, rtol=5e-4): super().test_batching_equivalence(atol=atol, rtol=rtol) @unittest.skip(reason="SAM3 model can't be compiled dynamic yet") def test_sdpa_can_compile_dynamic(self): pass @unittest.skip(reason="SAM3VisionModel has FPN channel mismatch with flex attention") def test_flex_attention_with_grads(self): pass class Sam3ModelTester: def __init__( self, parent, num_channels=3, image_size=224, # Keep reasonable size: 224 = 16 * 14 hidden_size=32, patch_size=14, num_hidden_layers=2, num_attention_heads=4, intermediate_size=64, window_size=8, # 224/14 = 16 patches, 16/2 = 8 per window global_attn_indexes=None, fpn_hidden_size=32, scale_factors=None, geometry_encoder_hidden_size=32, geometry_encoder_num_layers=1, # Reduced from 2 to 1 detr_encoder_hidden_size=32, detr_encoder_num_layers=1, # Reduced from 2 to 1 detr_decoder_hidden_size=32, detr_decoder_num_layers=1, # Reduced from 2 to 1 detr_decoder_num_queries=5, # Reduced from 10 to 5 mask_decoder_hidden_size=32, batch_size=2, is_training=True, ): if global_attn_indexes is None: global_attn_indexes = [0, 1] if scale_factors is None: scale_factors = [2.0, 1.0] # Just 2 scales to reduce params self.parent = parent self.num_channels = num_channels self.image_size = image_size self.hidden_size = hidden_size self.patch_size = patch_size self.num_hidden_layers = num_hidden_layers self.num_attention_heads = num_attention_heads self.intermediate_size = intermediate_size self.window_size = window_size self.global_attn_indexes = global_attn_indexes self.fpn_hidden_size = fpn_hidden_size self.scale_factors = scale_factors self.batch_size = batch_size self.is_training = is_training # Geometry encoder self.geometry_encoder_hidden_size = geometry_encoder_hidden_size self.geometry_encoder_num_layers = geometry_encoder_num_layers # DETR encoder/decoder self.detr_encoder_hidden_size = detr_encoder_hidden_size self.detr_encoder_num_layers = detr_encoder_num_layers self.detr_decoder_hidden_size = detr_decoder_hidden_size self.detr_decoder_num_layers = detr_decoder_num_layers self.detr_decoder_num_queries = detr_decoder_num_queries # Mask decoder self.mask_decoder_hidden_size = mask_decoder_hidden_size def prepare_config_and_inputs(self): pixel_values = floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size]) # Simple text input (will be processed by text encoder) input_ids = torch.randint(0, 1000, (self.batch_size, 16), device=torch_device) attention_mask = torch.ones_like(input_ids) config = self.get_config() return config, pixel_values, input_ids, attention_mask def get_config(self): backbone_config = Sam3ViTConfig( hidden_size=self.hidden_size, num_hidden_layers=self.num_hidden_layers, num_attention_heads=self.num_attention_heads, intermediate_size=self.intermediate_size, num_channels=self.num_channels, image_size=self.image_size, patch_size=self.patch_size, window_size=self.window_size, global_attn_indexes=self.global_attn_indexes, ) vision_config = Sam3VisionConfig( backbone_config=backbone_config, fpn_hidden_size=self.fpn_hidden_size, scale_factors=self.scale_factors, ) # Small text config for testing (instead of default full CLIP model) text_config = { "vocab_size": 1000, # Keep at 1000 for stability "hidden_size": 32, "intermediate_size": 64, "projection_dim": 32, "num_hidden_layers": self.num_hidden_layers, "num_attention_heads": 4, "max_position_embeddings": 32, # Keep at 32 for stability "hidden_act": "gelu", } geometry_encoder_config = Sam3GeometryEncoderConfig( hidden_size=self.geometry_encoder_hidden_size, num_layers=self.geometry_encoder_num_layers, num_attention_heads=self.num_attention_heads, intermediate_size=self.intermediate_size, mask_fuser_hidden_size=self.geometry_encoder_hidden_size, # Match hidden_size to reduce params mask_fuser_num_layers=1, # Reduce from default 2 to 1 ) detr_encoder_config = Sam3DETREncoderConfig( hidden_size=self.detr_encoder_hidden_size, num_layers=self.detr_encoder_num_layers, num_attention_heads=self.num_attention_heads, intermediate_size=self.intermediate_size, ) detr_decoder_config = Sam3DETRDecoderConfig( hidden_size=self.detr_decoder_hidden_size, num_layers=self.detr_decoder_num_layers, num_queries=self.detr_decoder_num_queries, num_attention_heads=self.num_attention_heads, intermediate_size=self.intermediate_size, ) mask_decoder_config = Sam3MaskDecoderConfig( hidden_size=self.mask_decoder_hidden_size, num_upsampling_stages=2, # Reduced from 3 to 2 ) return Sam3Config( vision_config=vision_config, text_config=text_config, geometry_encoder_config=geometry_encoder_config, detr_encoder_config=detr_encoder_config, detr_decoder_config=detr_decoder_config, mask_decoder_config=mask_decoder_config, ) def create_and_check_model(self, config, pixel_values, input_ids, attention_mask): model = Sam3Model(config=config) model.to(torch_device) model.eval() with torch.no_grad(): result = model(pixel_values=pixel_values, input_ids=input_ids, attention_mask=attention_mask) # Check output shapes self.parent.assertIsNotNone(result.pred_masks) self.parent.assertIsNotNone(result.pred_boxes) self.parent.assertIsNotNone(result.pred_logits) # Masks should be [batch_size, num_queries, H, W] self.parent.assertEqual(result.pred_masks.shape[0], self.batch_size) self.parent.assertEqual(result.pred_masks.shape[1], self.detr_decoder_num_queries) # Boxes should be [batch_size, num_queries, 4] self.parent.assertEqual(result.pred_boxes.shape, (self.batch_size, self.detr_decoder_num_queries, 4)) # Logits should be [batch_size, num_queries] self.parent.assertEqual(result.pred_logits.shape, (self.batch_size, self.detr_decoder_num_queries)) def prepare_config_and_inputs_for_common(self): config_and_inputs = self.prepare_config_and_inputs() config, pixel_values, input_ids, attention_mask = config_and_inputs inputs_dict = { "pixel_values": pixel_values, "input_ids": input_ids, "attention_mask": attention_mask, } return config, inputs_dict @require_torch class Sam3ModelTest(ModelTesterMixin, PipelineTesterMixin, unittest.TestCase): """ Tests for SAM3 full model. """ all_model_classes = (Sam3Model,) if is_torch_available() else () pipeline_model_mapping = {"mask-generation": Sam3Model} if is_torch_available() else {} test_resize_embeddings = False _is_composite = True def setUp(self): self.model_tester = Sam3ModelTester(self) common_properties = ["initializer_range"] self.config_tester = ConfigTester( self, config_class=Sam3Config, has_text_modality=False, common_properties=common_properties ) def test_config(self): self.config_tester.run_common_tests() @unittest.skip(reason="SAM3 does not use inputs_embeds") def test_inputs_embeds(self): pass def test_model_get_set_embeddings(self): config, _ = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) # Vision encoder has input embeddings self.assertIsInstance(model.vision_encoder.get_input_embeddings(), (nn.Module)) x = model.get_output_embeddings() self.assertTrue(x is None or isinstance(x, nn.Linear)) def test_model(self): config_and_inputs = self.model_tester.prepare_config_and_inputs() self.model_tester.create_and_check_model(*config_and_inputs) def test_batching_equivalence(self, atol=5e-4, rtol=5e-4): super().test_batching_equivalence(atol=atol, rtol=rtol) # Override as SAM3Model has component-specific attention outputs def test_attention_outputs(self): config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() config.return_dict = True for model_class in self.all_model_classes: inputs_dict["output_attentions"] = True inputs_dict["output_hidden_states"] = False config.return_dict = True model = model_class._from_config(config, attn_implementation="eager") config = model.config model.to(torch_device) model.eval() with torch.no_grad(): outputs = model(**self._prepare_for_class(inputs_dict, model_class)) # Check that we have the component-specific attention outputs # Note: Some may be empty tuples if attentions aren't collected for that component self.assertIsNotNone(outputs.vision_attentions) self.assertIsNotNone(outputs.detr_encoder_attentions) self.assertIsNotNone(outputs.detr_decoder_attentions) self.assertIsNotNone(outputs.mask_decoder_attentions) # Check vision attentions (from ViT backbone) - should be properly collected if outputs.vision_attentions: vision_attentions = outputs.vision_attentions self.assertEqual(len(vision_attentions), self.model_tester.num_hidden_layers) # Check that at least vision attentions are present (others may require different collection mechanism) self.assertTrue( len(outputs.vision_attentions) > 0, "At least vision attentions should be collected when output_attentions=True", ) # check that output_attentions also work using config del inputs_dict["output_attentions"] config.output_attentions = True for k in config.sub_configs: if (subconfig := getattr(config, k)) is not None: subconfig.output_attentions = True # Sam3 has a vision subconfig with itself a sub config.... for k in subconfig.sub_configs: if (subsubconfig := getattr(subconfig, k)) is not None: subsubconfig.output_attentions = True model = model_class(config) model.to(torch_device) model.eval() with torch.no_grad(): outputs = model(**self._prepare_for_class(inputs_dict, model_class)) # Verify again with config-based setting self.assertIsNotNone(outputs.vision_attentions) self.assertIsNotNone(outputs.detr_encoder_attentions) self.assertIsNotNone(outputs.detr_decoder_attentions) self.assertIsNotNone(outputs.mask_decoder_attentions) # Override as SAM3Model has component-specific attention/hidden state outputs def test_retain_grad_hidden_states_attentions(self): config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() for k in config.sub_configs: if getattr(config, k) is not None: getattr(config, k).output_hidden_states = True getattr(config, k).output_attentions = True config.output_hidden_states = True config.output_attentions = True config._attn_implementation = "eager" # Use first model class model_class = self.all_model_classes[0] model = model_class._from_config(config, attn_implementation="eager") model.to(torch_device) inputs = self._prepare_for_class(inputs_dict, model_class) outputs = model(**inputs) output = outputs[0] # SAM3 has component-specific hidden states and attentions # Check vision hidden states and attentions if outputs.vision_hidden_states is not None and len(outputs.vision_hidden_states) > 0: vision_hidden_states = outputs.vision_hidden_states[0] vision_hidden_states.retain_grad() if outputs.vision_attentions is not None and len(outputs.vision_attentions) > 0: vision_attentions = outputs.vision_attentions[0] vision_attentions.retain_grad() # Check DETR encoder hidden states and attentions if outputs.encoder_hidden_states is not None and len(outputs.encoder_hidden_states) > 0: encoder_hidden_states = outputs.encoder_hidden_states[0] encoder_hidden_states.retain_grad() if outputs.detr_encoder_attentions is not None and len(outputs.detr_encoder_attentions) > 0: detr_encoder_attentions = outputs.detr_encoder_attentions[0] detr_encoder_attentions.retain_grad() # Check DETR decoder hidden states and attentions if outputs.decoder_hidden_states is not None and len(outputs.decoder_hidden_states) > 0: decoder_hidden_states = outputs.decoder_hidden_states[0] decoder_hidden_states.retain_grad() if outputs.detr_decoder_attentions is not None and len(outputs.detr_decoder_attentions) > 0: detr_decoder_attentions = outputs.detr_decoder_attentions[0] detr_decoder_attentions.retain_grad() # Check mask decoder attentions if outputs.mask_decoder_attentions is not None and len(outputs.mask_decoder_attentions) > 0: mask_decoder_attentions = outputs.mask_decoder_attentions[0] mask_decoder_attentions.retain_grad() output.flatten()[0].backward(retain_graph=True) # Check gradients are not None if outputs.vision_hidden_states is not None and len(outputs.vision_hidden_states) > 0: self.assertIsNotNone(vision_hidden_states.grad) if outputs.vision_attentions is not None and len(outputs.vision_attentions) > 0: self.assertIsNotNone(vision_attentions.grad) if outputs.encoder_hidden_states is not None and len(outputs.encoder_hidden_states) > 0: self.assertIsNotNone(encoder_hidden_states.grad) if outputs.detr_encoder_attentions is not None and len(outputs.detr_encoder_attentions) > 0: self.assertIsNotNone(detr_encoder_attentions.grad) if outputs.decoder_hidden_states is not None and len(outputs.decoder_hidden_states) > 0: self.assertIsNotNone(decoder_hidden_states.grad) if outputs.detr_decoder_attentions is not None and len(outputs.detr_decoder_attentions) > 0: self.assertIsNotNone(detr_decoder_attentions.grad) if outputs.mask_decoder_attentions is not None and len(outputs.mask_decoder_attentions) > 0: self.assertIsNotNone(mask_decoder_attentions.grad) def test_hidden_states_output(self): """Test that SAM3 properly outputs component-specific hidden states.""" config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: # Enable hidden states output config.output_hidden_states = True for k in config.sub_configs: if getattr(config, k) is not None: getattr(config, k).output_hidden_states = True model = model_class(config) model.to(torch_device) model.eval() with torch.no_grad(): outputs = model(**self._prepare_for_class(inputs_dict, model_class)) # SAM3 has component-specific hidden states # Check vision hidden states if outputs.vision_hidden_states is not None: vision_hidden_states = outputs.vision_hidden_states self.assertIsInstance(vision_hidden_states, (list, tuple)) # Vision encoder outputs hidden states from each layer expected_num_vision_layers = self.model_tester.num_hidden_layers + 1 # +1 for embeddings self.assertEqual(len(vision_hidden_states), expected_num_vision_layers) # Check DETR encoder hidden states (stored as encoder_hidden_states) if outputs.encoder_hidden_states is not None: encoder_hidden_states = outputs.encoder_hidden_states self.assertIsInstance(encoder_hidden_states, (list, tuple)) # Check DETR decoder hidden states (stored as decoder_hidden_states) if outputs.decoder_hidden_states is not None: decoder_hidden_states = outputs.decoder_hidden_states self.assertIsInstance(decoder_hidden_states, (list, tuple)) @unittest.skip(reason="SAM3VisionModel has FPN channel mismatch with flex attention") def test_flex_attention_with_grads(self): pass @unittest.skip( reason="Sam3Model creates attention masks from features (with gradients), " "which is incompatible with flash attention's expectation of binary masks" ) def test_flash_attn_2_inference_equivalence(self): pass @unittest.skip( reason="Sam3Model creates attention masks from features (with gradients), " "which is incompatible with flash attention's expectation of binary masks" ) def test_flash_attn_2_inference_equivalence_right_padding(self): pass @unittest.skip( reason="Sam3Model creates attention masks from features (with gradients), " "which is incompatible with flash attention's expectation of binary masks" ) def test_flash_attn_3_inference_equivalence(self): pass @unittest.skip( reason="Sam3Model creates attention masks from features (with gradients), " "which is incompatible with flash attention's expectation of binary masks" ) def test_flash_attn_3_inference_equivalence_right_padding(self): pass @unittest.skip( reason="Sam3Model creates attention masks from features (with gradients), " "which is incompatible with flash attention's expectation of binary masks" ) def test_flash_attn_4_inference_equivalence(self): pass @unittest.skip( reason="Sam3Model creates attention masks from features (with gradients), " "which is incompatible with flash attention's expectation of binary masks" ) def test_flash_attn_4_inference_equivalence_right_padding(self): pass @unittest.skip( reason="Sam3Model creates attention masks from features (with gradients), " "which is incompatible with flash attention's expectation of binary masks" ) def test_flash_attn_kernels_inference_equivalence(self): pass @unittest.skip( reason="Sam3Model creates attention masks from features (with gradients), " "which is incompatible with flash attention's expectation of binary masks" ) def test_flash_attn_kernels_mps_inference_equivalence(self): pass def test_sdpa_can_dispatch_composite_models(self): """ Tests if composite models dispatch correctly on SDPA/eager when requested. SAM3 has multiple sub-models: vision_encoder, text_encoder, geometry_encoder, detr_encoder, detr_decoder, mask_decoder. """ if not self.has_attentions: self.skipTest(reason="Model architecture does not support attentions") if not self._is_composite: self.skipTest(f"{self.all_model_classes[0].__name__} does not support SDPA") for model_class in self.all_model_classes: config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() model = model_class(config) with tempfile.TemporaryDirectory() as tmpdirname: model.save_pretrained(tmpdirname) model_sdpa = model_class.from_pretrained(tmpdirname, attn_implementation="sdpa") model_sdpa = model_sdpa.eval().to(torch_device) # Get all sub-models that support attention vision_encoder_sdpa = getattr(model_sdpa, "vision_encoder") text_encoder_sdpa = getattr(model_sdpa, "text_encoder", None) detr_encoder_sdpa = getattr(model_sdpa, "detr_encoder", None) detr_decoder_sdpa = getattr(model_sdpa, "detr_decoder", None) mask_decoder_sdpa = getattr(model_sdpa, "mask_decoder", None) # Check that sub-models dispatch to SDPA if they support it self.assertTrue(vision_encoder_sdpa.config._attn_implementation == "sdpa") if text_encoder_sdpa is not None and hasattr(text_encoder_sdpa, "_supports_sdpa"): # Text encoder from CLIP should support SDPA self.assertTrue(text_encoder_sdpa.config._attn_implementation == "sdpa") if detr_encoder_sdpa is not None: self.assertTrue(detr_encoder_sdpa.config._attn_implementation == "sdpa") if detr_decoder_sdpa is not None: self.assertTrue(detr_decoder_sdpa.config._attn_implementation == "sdpa") if mask_decoder_sdpa is not None: self.assertTrue(mask_decoder_sdpa.config._attn_implementation == "sdpa") # Now test with eager model_eager = model_class.from_pretrained(tmpdirname, attn_implementation="eager") model_eager = model_eager.eval().to(torch_device) self.assertTrue(getattr(model_eager, "vision_encoder").config._attn_implementation == "eager") if hasattr(model_eager, "text_encoder"): self.assertTrue(model_eager.text_encoder.config._attn_implementation == "eager") if hasattr(model_eager, "detr_encoder"): self.assertTrue(model_eager.detr_encoder.config._attn_implementation == "eager") if hasattr(model_eager, "detr_decoder"): self.assertTrue(model_eager.detr_decoder.config._attn_implementation == "eager") if hasattr(model_eager, "mask_decoder"): self.assertTrue(model_eager.mask_decoder.config._attn_implementation == "eager") # Verify no SDPA layers in eager model for name, submodule in model_eager.named_modules(): class_name = submodule.__class__.__name__ if ( class_name.endswith("Attention") and getattr(submodule, "config", None) and submodule.config._attn_implementation == "sdpa" ): raise ValueError("The eager model should not have SDPA attention layers") def test_forward_with_text_embeds(self): """Test that text_embeds parameter works correctly.""" config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) model.to(torch_device) model.eval() # First get text embeddings with torch.no_grad(): text_embeds = model.get_text_features( input_ids=inputs_dict["input_ids"], attention_mask=inputs_dict["attention_mask"], return_dict=True ) # Forward with text_embeds (remove input_ids) inputs_with_embeds = { "pixel_values": inputs_dict["pixel_values"], "text_embeds": text_embeds, } with torch.no_grad(): outputs_with_embeds = model(**inputs_with_embeds) # Forward with input_ids with torch.no_grad(): outputs_with_ids = model(**inputs_dict) # Outputs should be very close self.assertTrue(torch.allclose(outputs_with_embeds.pred_logits, outputs_with_ids.pred_logits, atol=1e-5)) self.assertTrue(torch.allclose(outputs_with_embeds.pred_boxes, outputs_with_ids.pred_boxes, atol=1e-5)) def test_forward_with_both_input_ids_and_text_embeds_raises_error(self): """Test that passing both input_ids and text_embeds raises an error.""" config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) model.to(torch_device) model.eval() # Get text embeddings with torch.no_grad(): text_embeds = model.get_text_features( input_ids=inputs_dict["input_ids"], attention_mask=inputs_dict["attention_mask"] ) # Try to pass both (should raise error) inputs_with_both = { "pixel_values": inputs_dict["pixel_values"], "input_ids": inputs_dict["input_ids"], "text_embeds": text_embeds, } with self.assertRaises(ValueError): model(**inputs_with_both) def test_forward_with_vision_embeds(self): """Test that vision_embeds parameter works correctly.""" config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) model.to(torch_device) model.eval() # First get vision embeddings with torch.no_grad(): vision_embeds = model.get_vision_features(pixel_values=inputs_dict["pixel_values"]) # Forward with vision_embeds (remove pixel_values) inputs_with_embeds = { "vision_embeds": vision_embeds, "input_ids": inputs_dict["input_ids"], "attention_mask": inputs_dict["attention_mask"], } with torch.no_grad(): outputs_with_embeds = model(**inputs_with_embeds) # Forward with pixel_values with torch.no_grad(): outputs_with_pixels = model(**inputs_dict) # Outputs should be very close self.assertTrue( torch.allclose(outputs_with_embeds.pred_logits, outputs_with_pixels.pred_logits, atol=1e-5) ) self.assertTrue(torch.allclose(outputs_with_embeds.pred_boxes, outputs_with_pixels.pred_boxes, atol=1e-5)) def test_forward_with_both_pixel_values_and_vision_embeds_raises_error(self): """Test that passing both pixel_values and vision_embeds raises an error.""" config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() for model_class in self.all_model_classes: model = model_class(config) model.to(torch_device) model.eval() # Get vision embeddings with torch.no_grad(): vision_embeds = model.get_vision_features(pixel_values=inputs_dict["pixel_values"]) # Try to pass both (should raise error) inputs_with_both = { "pixel_values": inputs_dict["pixel_values"], "vision_embeds": vision_embeds, "input_ids": inputs_dict["input_ids"], "attention_mask": inputs_dict["attention_mask"], } with self.assertRaises(ValueError): model(**inputs_with_both) def test_custom_image_size(self): """Test that custom image size can be set and propagates correctly through nested configs.""" config = self.model_tester.get_config() config.image_size = 560 self.assertEqual(config.image_size, 560) self.assertEqual(config.vision_config.image_size, 560) self.assertEqual(config.vision_config.backbone_config.image_size, 560) # Verify model works with custom size model = Sam3Model(config=config).to(torch_device).eval() pixel_values = floats_tensor([self.model_tester.batch_size, self.model_tester.num_channels, 560, 560]).to( torch_device ) input_ids = torch.randint(0, 1000, (self.model_tester.batch_size, 16), device=torch_device) with torch.no_grad(): outputs = model(pixel_values=pixel_values, input_ids=input_ids, attention_mask=torch.ones_like(input_ids)) self.assertIsNotNone(outputs.pred_masks) self.assertIsNotNone(outputs.pred_boxes) self.assertIsNotNone(outputs.pred_logits) @unittest.skip(reason="SAM3 model can't be compiled dynamic yet") def test_sdpa_can_compile_dynamic(self): pass @unittest.skip( reason="SAM3 uses CLIP text encoder which has two attention masks: `causal_attention_mask` and `attention_mask`." ) def test_sdpa_can_dispatch_on_flash(self): pass def test_model_outputs_equivalence(self): """ Test that tuple and dict outputs are equivalent. SAM3 returns complex outputs with component-specific fields, so we need to ensure proper conversion. """ config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common() def set_nan_tensor_to_zero(t): t[t != t] = 0 return t def check_equivalence(model, tuple_inputs, dict_inputs, additional_kwargs={}): with torch.no_grad(): tuple_output = model(**tuple_inputs, return_dict=False, **additional_kwargs) dict_output = model(**dict_inputs, return_dict=True, **additional_kwargs).to_tuple() def recursive_check(tuple_object, dict_object): if isinstance(tuple_object, (list, tuple)): for tuple_iterable_value, dict_iterable_value in zip(tuple_object, dict_object): recursive_check(tuple_iterable_value, dict_iterable_value) elif isinstance(tuple_object, dict): for tuple_iterable_value, dict_iterable_value in zip( tuple_object.values(), dict_object.values() ): recursive_check(tuple_iterable_value, dict_iterable_value) elif tuple_object is None: return # model might return non-tensors objects (e.g. Cache class) elif isinstance(tuple_object, torch.Tensor): self.assertTrue( torch.allclose( set_nan_tensor_to_zero(tuple_object), set_nan_tensor_to_zero(dict_object), atol=1e-5 ), msg=( "Tuple and dict output are not equal. Difference:" f" {torch.max(torch.abs(tuple_object - dict_object))}. Tuple has `nan`:" f" {torch.isnan(tuple_object).any()} and `inf`: {torch.isinf(tuple_object)}. Dict has" f" `nan`: {torch.isnan(dict_object).any()} and `inf`: {torch.isinf(dict_object)}." ), ) recursive_check(tuple_output, dict_output) for model_class in self.all_model_classes: model = model_class(config) model.to(torch_device) model.eval() tuple_inputs = self._prepare_for_class(inputs_dict, model_class) dict_inputs = self._prepare_for_class(inputs_dict, model_class) check_equivalence(model, tuple_inputs, dict_inputs) # Test with output_hidden_states tuple_inputs = self._prepare_for_class(inputs_dict, model_class) dict_inputs = self._prepare_for_class(inputs_dict, model_class) check_equivalence(model, tuple_inputs, dict_inputs, {"output_hidden_states": True}) # Test with output_attentions if supported if self.has_attentions: tuple_inputs = self._prepare_for_class(inputs_dict, model_class) dict_inputs = self._prepare_for_class(inputs_dict, model_class) check_equivalence(model, tuple_inputs, dict_inputs, {"output_attentions": True}) tuple_inputs = self._prepare_for_class(inputs_dict, model_class) dict_inputs = self._prepare_for_class(inputs_dict, model_class) check_equivalence( model, tuple_inputs, dict_inputs, {"output_hidden_states": True, "output_attentions": True} ) def _prepare_for_class(self, inputs_dict, model_class, return_labels=False): """Override to ensure input_ids and attention_mask are always present for Sam3Model.""" inputs_dict = super()._prepare_for_class(inputs_dict, model_class, return_labels=return_labels) # Sam3Model always requires input_ids and attention_mask for text encoding if model_class == Sam3Model: if "input_ids" not in inputs_dict or inputs_dict.get("input_ids") is None: # Create dummy input_ids if not present # Get batch_size from pixel_values or vision_embeds if "pixel_values" in inputs_dict and inputs_dict.get("pixel_values") is not None: batch_size = inputs_dict["pixel_values"].shape[0] elif "vision_embeds" in inputs_dict and inputs_dict.get("vision_embeds") is not None: vision_embeds = inputs_dict["vision_embeds"] if vision_embeds.fpn_hidden_states is not None and len(vision_embeds.fpn_hidden_states) > 0: batch_size = vision_embeds.fpn_hidden_states[0].shape[0] elif vision_embeds.last_hidden_state is not None: batch_size = vision_embeds.last_hidden_state.shape[0] else: batch_size = 2 else: batch_size = 2 config = self.model_tester.get_config() # text_config might be a dict or a config object if isinstance(config.text_config, dict): vocab_size = config.text_config.get("vocab_size", 1000) else: vocab_size = getattr(config.text_config, "vocab_size", 1000) inputs_dict["input_ids"] = torch.randint(0, vocab_size, (batch_size, 16), device=torch_device) if "attention_mask" not in inputs_dict or inputs_dict.get("attention_mask") is None: inputs_dict["attention_mask"] = torch.ones_like(inputs_dict["input_ids"]) return inputs_dict def prepare_coco_cat_image(): """Prepare COCO cat and laptop image (from batched inference notebook).""" img_url = url_to_local_path("http://images.cocodataset.org/val2017/000000077595.jpg") return load_image(img_url).convert("RGB") def prepare_coco_kitchen_image(): """Prepare COCO kitchen scene image (from batched inference notebook).""" img_url = url_to_local_path("http://images.cocodataset.org/val2017/000000136466.jpg") return load_image(img_url).convert("RGB") @slow class Sam3ModelIntegrationTest(unittest.TestCase): """Integration tests for SAM3 model with real pretrained weights.""" def setUp(self): super().setUp() model_name = "facebook/sam3" self.model = Sam3Model.from_pretrained(model_name).to(torch.float32) self.processor = Sam3Processor.from_pretrained(model_name) self.model.to(torch_device) self.model.eval() def tearDown(self): super().tearDown() gc.collect() backend_empty_cache(torch_device) def test_inference_text_prompt_only(self): """Test inference with text prompt only (from multiway_prompting notebook).""" # Example from notebook: "short hair" text prompt raw_image = prepare_coco_cat_image() text = "ear" inputs = self.processor(images=raw_image, text=text, return_tensors="pt").to(torch_device) with torch.no_grad(): outputs = self.model(**inputs) # Check exact output shapes self.assertEqual(outputs.pred_masks.shape, (1, 200, 288, 288)) self.assertEqual(outputs.pred_boxes.shape, (1, 200, 4)) self.assertEqual(outputs.pred_logits.shape, (1, 200)) # Check that predictions have reasonable scores (after sigmoid) scores = torch.sigmoid(outputs.pred_logits) self.assertTrue((scores >= 0).all() and (scores <= 1).all()) # Check exact values sorted_indices = torch.argsort(scores.squeeze(), descending=True) top_scores = scores.squeeze()[sorted_indices[:3]] top_logits = outputs.pred_logits.squeeze()[sorted_indices[:3]] top_idx = sorted_indices[0].item() torch.testing.assert_close( top_scores, torch.tensor([0.9381, 0.9214, 0.0910]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_logits, torch.tensor([2.7182, 2.4618, -2.3020]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( outputs.pred_boxes[0, top_idx], torch.tensor([0.4704, 0.2014, 0.5615, 0.3770]).to(torch_device), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_masks[0, top_idx, :3, :3], torch.tensor( [[-2.1815, -6.2767, -7.0687], [-5.7988, -10.2704, -10.9379], [-8.5194, -10.7892, -9.9152]] ).to(torch_device), atol=1e-4, rtol=1e-4, ) # Test post-processing results = self.processor.post_process_instance_segmentation( outputs, threshold=0.5, mask_threshold=0.5, target_sizes=inputs.get("original_sizes").tolist() ) self.assertEqual(len(results), 1) result = results[0] # Check that we have detections self.assertGreater(len(result["masks"]), 0) self.assertGreater(len(result["boxes"]), 0) self.assertGreater(len(result["scores"]), 0) # Check exact values for top detection top_pp_score = result["scores"][0] top_pp_box = result["boxes"][0] torch.testing.assert_close(top_pp_score, torch.tensor(0.9210).to(torch_device), atol=1e-4, rtol=1e-4) torch.testing.assert_close( top_pp_box, torch.tensor([402.1755, 90.1420, 459.6165, 156.3702]).to(torch_device), atol=1e-4, rtol=1e-4 ) def test_inference_single_box_prompt(self): """Test inference with a single bounding box prompt (from batched_inference notebook).""" raw_image = prepare_coco_cat_image() # Example from notebook: laptop region in image 1 # Box in xyxy format: [100, 150, 500, 450] box_xyxy = [100, 150, 500, 450] input_boxes = [[box_xyxy]] inputs = self.processor( images=raw_image, input_boxes=input_boxes, input_boxes_labels=[[1]], # Positive box return_tensors="pt", ).to(torch_device) with torch.no_grad(): outputs = self.model(**inputs) # Check exact output shapes self.assertEqual(outputs.pred_masks.shape, (1, 200, 288, 288)) self.assertEqual(outputs.pred_boxes.shape, (1, 200, 4)) self.assertEqual(outputs.pred_logits.shape, (1, 200)) # Check exact values scores = torch.sigmoid(outputs.pred_logits) sorted_indices = torch.argsort(scores.squeeze(), descending=True) top_scores = scores.squeeze()[sorted_indices[:3]] top_logits = outputs.pred_logits.squeeze()[sorted_indices[:3]] top_idx = sorted_indices[0].item() torch.testing.assert_close( top_scores, torch.tensor([0.9308, 0.1617, 0.1336]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_logits, torch.tensor([2.5988, -1.6460, -1.8699]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( outputs.pred_boxes[0, top_idx], torch.tensor([0.1631, 0.4140, 0.7510, 0.9931]).to(torch_device), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_masks[0, top_idx, :3, :3], torch.tensor([[-1.8726, -3.5063, -3.7716], [-3.1987, -5.3820, -5.6782], [-3.8850, -5.4164, -5.8604]]).to( torch_device ), atol=1e-4, rtol=1e-4, ) # Test post-processing results = self.processor.post_process_instance_segmentation( outputs, threshold=0.5, mask_threshold=0.5, target_sizes=inputs.get("original_sizes").tolist() ) self.assertEqual(len(results), 1) result = results[0] # Check that we have detections self.assertGreater(len(result["masks"]), 0) # Check exact values for top detection top_pp_score = result["scores"][0] top_pp_box = result["boxes"][0] torch.testing.assert_close(top_pp_score, torch.tensor(0.9307).to(torch_device), atol=1e-4, rtol=1e-4) torch.testing.assert_close( top_pp_box, torch.tensor([104.3945, 175.9433, 480.6293, 422.0826]).to(torch_device), atol=1e-4, rtol=1e-4 ) def test_inference_multi_box_prompt(self): """Test inference with multiple box prompts with positive and negative labels (from batched_inference notebook).""" raw_image = prepare_coco_kitchen_image() # Example from notebook: multiple positive boxes (dial + button) # Dial box (xyxy): [59, 144, 76, 163] # Button box (xyxy): [87, 148, 104, 159] box1_xyxy = [59, 144, 76, 163] box2_xyxy = [87, 148, 104, 159] input_boxes = [[box1_xyxy, box2_xyxy]] input_boxes_labels = [[1, 1]] # Both positive inputs = self.processor( images=raw_image, input_boxes=input_boxes, input_boxes_labels=input_boxes_labels, return_tensors="pt" ).to(torch_device) with torch.no_grad(): outputs = self.model(**inputs) # Check exact output shapes self.assertEqual(outputs.pred_masks.shape, (1, 200, 288, 288)) self.assertEqual(outputs.pred_boxes.shape, (1, 200, 4)) self.assertEqual(outputs.pred_logits.shape, (1, 200)) # Check exact values scores = torch.sigmoid(outputs.pred_logits) sorted_indices = torch.argsort(scores.squeeze(), descending=True) top_scores = scores.squeeze()[sorted_indices[:3]] top_logits = outputs.pred_logits.squeeze()[sorted_indices[:3]] top_idx = sorted_indices[0].item() torch.testing.assert_close( top_scores, torch.tensor([0.9611, 0.9379, 0.8348]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_logits, torch.tensor([3.2071, 2.7154, 1.6198]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( outputs.pred_boxes[0, top_idx], torch.tensor([0.1757, 0.2888, 0.2296, 0.3259]).to(torch_device), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_masks[0, top_idx, :3, :3], torch.tensor( [[-8.6138, -14.5615, -17.9965], [-13.6695, -20.4994, -25.6705], [-14.9681, -23.0616, -17.0045]] ).to(torch_device), atol=1e-4, rtol=1e-4, ) # Test post-processing results = self.processor.post_process_instance_segmentation( outputs, threshold=0.5, mask_threshold=0.5, target_sizes=inputs.get("original_sizes").tolist() ) self.assertEqual(len(results), 1) result = results[0] # Check that we have detections self.assertGreater(len(result["masks"]), 0) # Check exact values for top detection top_pp_score = result["scores"][0] top_pp_box = result["boxes"][0] torch.testing.assert_close(top_pp_score, torch.tensor(0.9379).to(torch_device), atol=1e-4, rtol=1e-4) torch.testing.assert_close( top_pp_box, torch.tensor([86.8687, 147.5269, 104.4475, 159.6138]).to(torch_device), atol=1e-4, rtol=1e-4 ) def test_inference_combined_prompts(self): """Test inference with combined text and geometry prompts (text + negative box from batched_inference notebook).""" raw_image = prepare_coco_kitchen_image() # Example from notebook: text "handle" + negative box to exclude oven handle text = "handle" # Negative box covering the oven handle area (xyxy): [40, 183, 318, 204] oven_handle_box = [40, 183, 318, 204] input_boxes = [[oven_handle_box]] inputs = self.processor( images=raw_image, text=text, input_boxes=input_boxes, input_boxes_labels=[[0]], # 0 = negative return_tensors="pt", ).to(torch_device) with torch.no_grad(): outputs = self.model(**inputs) # Check exact output shapes self.assertEqual(outputs.pred_masks.shape, (1, 200, 288, 288)) self.assertEqual(outputs.pred_boxes.shape, (1, 200, 4)) self.assertEqual(outputs.pred_logits.shape, (1, 200)) def test_inference_batched_images(self): """Test batched inference with multiple images (from batched_inference notebook).""" # Example from notebook: batch of 2 images with different text prompts raw_image1 = prepare_coco_cat_image() raw_image2 = prepare_coco_kitchen_image() # Batch of 2 images with different text prompts: "ear" for cat, "dial" for kitchen inputs = self.processor(images=[raw_image1, raw_image2], text=["ear", "dial"], return_tensors="pt").to( torch_device ) with torch.no_grad(): outputs = self.model(**inputs) # Check exact output shapes self.assertEqual(outputs.pred_masks.shape, (2, 200, 288, 288)) self.assertEqual(outputs.pred_boxes.shape, (2, 200, 4)) self.assertEqual(outputs.pred_logits.shape, (2, 200)) # Check scores are reasonable scores = torch.sigmoid(outputs.pred_logits) self.assertTrue((scores >= 0).all() and (scores <= 1).all()) # Check exact values sorted_indices_0 = torch.argsort(scores[0], descending=True) sorted_indices_1 = torch.argsort(scores[1], descending=True) top_scores_0 = scores[0][sorted_indices_0[:3]] top_scores_1 = scores[1][sorted_indices_1[:3]] top_logits_0 = outputs.pred_logits[0][sorted_indices_0[:3]] top_logits_1 = outputs.pred_logits[1][sorted_indices_1[:3]] top_idx_0 = sorted_indices_0[0].item() top_idx_1 = sorted_indices_1[0].item() torch.testing.assert_close( top_scores_0, torch.tensor([0.9381, 0.9214, 0.0910]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_scores_1, torch.tensor([0.8863, 0.8849, 0.8841]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_logits_0, torch.tensor([2.7182, 2.4618, -2.3020]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_logits_1, torch.tensor([2.0534, 2.0395, 2.0320]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( outputs.pred_boxes[0, top_idx_0], torch.tensor([0.4704, 0.2014, 0.5615, 0.3770]).to(torch_device), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_boxes[1, top_idx_1], torch.tensor([0.6162, 0.2769, 0.6838, 0.3238]).to(torch_device), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_masks[0, top_idx_0, :3, :3], torch.tensor( [[-2.1815, -6.2767, -7.0687], [-5.7988, -10.2704, -10.9379], [-8.5194, -10.7892, -9.9152]] ).to(torch_device), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_masks[1, top_idx_1, :3, :3], torch.tensor( [[-7.4371, -13.5898, -13.6496], [-11.8669, -20.6416, -23.0941], [-12.8623, -20.3439, -16.6497]] ).to(torch_device), atol=1e-4, rtol=1e-4, ) # Test post-processing results = self.processor.post_process_instance_segmentation( outputs, threshold=0.3, mask_threshold=0.5, target_sizes=inputs.get("original_sizes").tolist() ) self.assertEqual(len(results), 2) # Check that both have detections self.assertGreater(len(results[0]["masks"]), 0) self.assertGreater(len(results[1]["masks"]), 0) # Check exact values for top detection in each image top_pp_score_0 = results[0]["scores"][0] top_pp_box_0 = results[0]["boxes"][0] top_pp_score_1 = results[1]["scores"][0] top_pp_box_1 = results[1]["boxes"][0] torch.testing.assert_close(top_pp_score_0, torch.tensor(0.9210).to(torch_device), atol=1e-4, rtol=1e-4) torch.testing.assert_close( top_pp_box_0, torch.tensor([402.1755, 90.1421, 459.6165, 156.3701]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close(top_pp_score_1, torch.tensor(0.6641).to(torch_device), atol=1e-4, rtol=1e-4) torch.testing.assert_close( top_pp_box_1, torch.tensor([110.6279, 271.1848, 137.3600, 301.3683]).to(torch_device), atol=1e-4, rtol=1e-4 ) def test_inference_batched_mixed_prompts(self): """Test batched inference with mixed prompt types (from batched_inference notebook).""" # Example from notebook: Image 1 with text "laptop", Image 2 with visual prompt (dial) raw_image1 = prepare_coco_cat_image() raw_image2 = prepare_coco_kitchen_image() # Box for dial in image 2 (xyxy): [59, 144, 76, 163] box2_xyxy = [59, 144, 76, 163] inputs = self.processor( images=[raw_image1, raw_image2], text=["laptop", None], # Only first image has text input_boxes=[None, [box2_xyxy]], # Only second image has box input_boxes_labels=[None, [1]], return_tensors="pt", ).to(torch_device) with torch.no_grad(): outputs = self.model(**inputs) # Check exact output shapes self.assertEqual(outputs.pred_masks.shape, (2, 200, 288, 288)) self.assertEqual(outputs.pred_boxes.shape, (2, 200, 4)) self.assertEqual(outputs.pred_logits.shape, (2, 200)) # Check exact values scores = torch.sigmoid(outputs.pred_logits) sorted_indices_0 = torch.argsort(scores[0], descending=True) sorted_indices_1 = torch.argsort(scores[1], descending=True) top_scores_0 = scores[0][sorted_indices_0[:3]] top_scores_1 = scores[1][sorted_indices_1[:3]] top_logits_0 = outputs.pred_logits[0][sorted_indices_0[:3]] top_logits_1 = outputs.pred_logits[1][sorted_indices_1[:3]] top_idx_0 = sorted_indices_0[0].item() top_idx_1 = sorted_indices_1[0].item() torch.testing.assert_close( top_scores_0, torch.tensor([0.9756, 0.1352, 0.0701]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_scores_1, torch.tensor([0.9683, 0.8310, 0.8222]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_logits_0, torch.tensor([3.6865, -1.8555, -2.5854]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( top_logits_1, torch.tensor([3.4183, 1.5929, 1.5315]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close( outputs.pred_boxes[0, top_idx_0], torch.tensor([-0.0013, 0.0016, 0.4521, 0.9964]).to(torch_device), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_boxes[1, top_idx_1], torch.tensor([0.1774, 0.2876, 0.2296, 0.3261]).to(torch_device), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_masks[0, top_idx_0, :3, :3], torch.tensor([[0.0520, 0.3121, 0.4103], [0.6820, 1.0069, 1.0949], [0.8418, 1.0318, 1.0365]]).to( torch_device ), atol=1e-4, rtol=1e-4, ) torch.testing.assert_close( outputs.pred_masks[1, top_idx_1, :3, :3], torch.tensor( [[-8.7447, -14.3499, -17.5662], [-13.6804, -20.3728, -25.5098], [-15.2996, -22.9116, -17.6658]] ).to(torch_device), atol=1e-4, rtol=1e-4, ) # Test post-processing results = self.processor.post_process_instance_segmentation( outputs, threshold=0.3, mask_threshold=0.5, target_sizes=inputs.get("original_sizes").tolist() ) self.assertEqual(len(results), 2) # Check that both have detections self.assertGreater(len(results[0]["masks"]), 0) self.assertGreater(len(results[1]["masks"]), 0) # Check exact values for top detection in each image top_pp_score_0 = results[0]["scores"][0] top_pp_box_0 = results[0]["boxes"][0] top_pp_score_1 = results[1]["scores"][0] top_pp_box_1 = results[1]["boxes"][0] torch.testing.assert_close(top_pp_score_0, torch.tensor(0.9655).to(torch_device), atol=1e-4, rtol=1e-4) torch.testing.assert_close( top_pp_box_0, torch.tensor([-0.8481, 0.6668, 289.3758, 423.4723]).to(torch_device), atol=1e-4, rtol=1e-4 ) torch.testing.assert_close(top_pp_score_1, torch.tensor(0.8222).to(torch_device), atol=1e-4, rtol=1e-4) torch.testing.assert_close( top_pp_box_1, torch.tensor([168.9376, 137.3257, 191.7281, 161.3243]).to(torch_device), atol=1e-4, rtol=1e-4 ) # TODO add exact values def test_semantic_segmentation_output(self): """Test that semantic segmentation output is produced.""" raw_image = prepare_coco_cat_image() inputs = self.processor(images=raw_image, text="ear", return_tensors="pt").to(torch_device) with torch.no_grad(): outputs = self.model(**inputs) # Check exact semantic segmentation output shape self.assertEqual(outputs.semantic_seg.shape, (1, 1, 288, 288)) # Check that semantic seg has same spatial size as pred_masks self.assertEqual(outputs.semantic_seg.shape[-2:], outputs.pred_masks.shape[-2:]) @require_deterministic_for_xpu def test_efficient_multi_prompt_single_image(self): """Test efficient inference with multiple prompts on a single image using get_vision_features.""" raw_image = prepare_coco_cat_image() # Pre-compute vision embeddings once img_inputs = self.processor(images=raw_image, return_tensors="pt").to(torch_device) with torch.no_grad(): vision_embeds = self.model.get_vision_features(pixel_values=img_inputs.pixel_values) # Run multiple text prompts efficiently text_prompts = ["ear", "eye"] all_results = [] for prompt in text_prompts: text_inputs = self.processor(text=prompt, return_tensors="pt").to(torch_device) with torch.no_grad(): outputs = self.model(vision_embeds=vision_embeds, **text_inputs) results = self.processor.post_process_instance_segmentation( outputs, threshold=0.5, mask_threshold=0.5, target_sizes=img_inputs.get("original_sizes").tolist(), )[0] all_results.append(results) # Check that we get results for both prompts self.assertEqual(len(all_results), 2) # Verify outputs are equivalent to running with pixel_values directly text_inputs = self.processor(text="ear", return_tensors="pt").to(torch_device) with torch.no_grad(): outputs_with_embeds = self.model(vision_embeds=vision_embeds, **text_inputs) inputs_direct = self.processor(images=raw_image, text="ear", return_tensors="pt").to(torch_device) with torch.no_grad(): outputs_direct = self.model(**inputs_direct) # Outputs should be identical torch.testing.assert_close(outputs_with_embeds.pred_logits, outputs_direct.pred_logits, atol=1e-5, rtol=1e-5) torch.testing.assert_close(outputs_with_embeds.pred_boxes, outputs_direct.pred_boxes, atol=1e-5, rtol=1e-5) torch.testing.assert_close(outputs_with_embeds.pred_masks, outputs_direct.pred_masks, atol=1e-5, rtol=1e-5) @require_deterministic_for_xpu def test_efficient_single_prompt_multi_images(self): """Test efficient inference with same prompt on multiple images using get_text_features.""" raw_image1 = prepare_coco_cat_image() raw_image2 = prepare_coco_kitchen_image() # Pre-compute text embeddings once text_prompt = "handle" text_inputs = self.processor(text=text_prompt, return_tensors="pt").to(torch_device) with torch.no_grad(): text_embeds = self.model.get_text_features(**text_inputs) # Run inference on multiple images reusing text embeddings # Note: attention_mask must be passed along with text_embeds for proper masking images = [raw_image1, raw_image2] all_results = [] for image in images: img_inputs = self.processor(images=image, return_tensors="pt").to(torch_device) with torch.no_grad(): outputs = self.model( text_embeds=text_embeds, attention_mask=text_inputs.attention_mask, **img_inputs, ) results = self.processor.post_process_instance_segmentation( outputs, threshold=0.5, mask_threshold=0.5, target_sizes=img_inputs.get("original_sizes").tolist(), )[0] all_results.append(results) # Check that we get results for both images self.assertEqual(len(all_results), 2) # Verify outputs are equivalent to running with input_ids directly img_inputs = self.processor(images=raw_image2, return_tensors="pt").to(torch_device) with torch.no_grad(): outputs_with_embeds = self.model( text_embeds=text_embeds, attention_mask=text_inputs.attention_mask, **img_inputs, ) inputs_direct = self.processor(images=raw_image2, text=text_prompt, return_tensors="pt").to(torch_device) with torch.no_grad(): outputs_direct = self.model(**inputs_direct) # Outputs should be identical torch.testing.assert_close(outputs_with_embeds.pred_logits, outputs_direct.pred_logits, atol=1e-5, rtol=1e-5) torch.testing.assert_close(outputs_with_embeds.pred_boxes, outputs_direct.pred_boxes, atol=1e-5, rtol=1e-5) torch.testing.assert_close(outputs_with_embeds.pred_masks, outputs_direct.pred_masks, atol=1e-5, rtol=1e-5) @require_torch class Sam3SinePositionEmbeddingTest(unittest.TestCase): def test_compiled_build_keeps_requested_dtype(self): """Regression test for #47228: the cumsum-on-bool-ones formulation matched an inductor rewrite that dropped the requested dtype, so half-precision models crashed under torch.compile with a Float/BFloat16 matmul mismatch.""" from transformers.models.sam3.modeling_sam3 import Sam3SinePositionEmbedding def build(pixel_values): return Sam3SinePositionEmbedding.build_sine_position_embedding( pixel_values.shape, pixel_values.device, pixel_values.dtype, num_position_features=32, normalize=True, scale=2 * math.pi, ) pixel_values = torch.zeros(1, 3, 8, 8, device=torch_device, dtype=torch.bfloat16) eager = build(pixel_values) compiled = torch.compile(build)(pixel_values) self.assertEqual(compiled.dtype, torch.bfloat16) torch.testing.assert_close(compiled, eager, atol=2e-2, rtol=2e-2)