mirror of
https://github.com/huggingface/transformers.git
synced 2025-07-04 21:30:07 +06:00

* tmp commit * tmp commit * cull overwrites of deleted tests * typo * more specific docstring * make fixup * parameterize at the top? * correction * more deletions :D * tmp commit * for VLMs too * fix _check_outputs * test nit * make fixup * fix another flaky * test_generate_from_inputs_embeds -- handle missing attention mask
609 lines
23 KiB
Python
609 lines
23 KiB
Python
# coding=utf-8
|
||
# Copyright 2024 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 Mllama model."""
|
||
|
||
import gc
|
||
import unittest
|
||
|
||
import requests
|
||
|
||
from transformers import (
|
||
AutoProcessor,
|
||
BitsAndBytesConfig,
|
||
MllamaConfig,
|
||
MllamaForCausalLM,
|
||
MllamaForConditionalGeneration,
|
||
is_torch_available,
|
||
is_vision_available,
|
||
)
|
||
from transformers.models.mllama.configuration_mllama import MllamaTextConfig
|
||
from transformers.testing_utils import (
|
||
is_flaky,
|
||
require_bitsandbytes,
|
||
require_read_token,
|
||
require_torch,
|
||
require_torch_gpu,
|
||
require_torch_sdpa,
|
||
slow,
|
||
torch_device,
|
||
)
|
||
|
||
from ...generation.test_utils import GenerationTesterMixin
|
||
from ...test_configuration_common import ConfigTester
|
||
from ...test_modeling_common import ModelTesterMixin, floats_tensor, ids_tensor
|
||
|
||
|
||
if is_torch_available():
|
||
import torch
|
||
|
||
if is_vision_available():
|
||
from PIL import Image
|
||
|
||
|
||
class MllamaText2TextModelTester:
|
||
def __init__(
|
||
self,
|
||
parent,
|
||
ignore_index=-100,
|
||
seq_length=7,
|
||
is_training=True,
|
||
text_config={
|
||
"model_type": "mllama",
|
||
"vocab_size": 99,
|
||
"hidden_size": 32,
|
||
"num_hidden_layers": 2,
|
||
"num_attention_heads": 4,
|
||
"num_key_value_heads": 4,
|
||
"intermediate_size": 37,
|
||
"hidden_act": "gelu",
|
||
"max_position_embeddings": 512,
|
||
"initializer_range": 0.02,
|
||
"rope_scaling": {"rope_type": "default"},
|
||
"pad_token_id": 0,
|
||
"bos_token_id": 1,
|
||
"eos_token_id": 2,
|
||
},
|
||
):
|
||
self.parent = parent
|
||
self.ignore_index = ignore_index
|
||
self.text_config = text_config
|
||
self.seq_length = seq_length
|
||
|
||
self.num_hidden_layers = text_config["num_hidden_layers"]
|
||
self.vocab_size = text_config["vocab_size"]
|
||
self.hidden_size = text_config["hidden_size"]
|
||
self.num_attention_heads = text_config["num_attention_heads"]
|
||
self.is_training = is_training
|
||
self.pad_token_id = self.text_config["pad_token_id"]
|
||
self.batch_size = 3
|
||
|
||
def get_config(self):
|
||
return MllamaTextConfig(**self.text_config)
|
||
|
||
def prepare_config_and_inputs(self):
|
||
config = self.get_config()
|
||
input_ids = ids_tensor([self.batch_size, self.seq_length], config.vocab_size - 1) + 1
|
||
attention_mask = input_ids.ne(1).to(torch_device)
|
||
return config, input_ids, attention_mask
|
||
|
||
def prepare_config_and_inputs_for_common(self):
|
||
config, input_ids, attention_mask = self.prepare_config_and_inputs()
|
||
inputs_dict = {"input_ids": input_ids, "attention_mask": attention_mask}
|
||
return config, inputs_dict
|
||
|
||
def create_and_check_mllama_model_fp16_forward(self, config, input_ids, attention_mask):
|
||
model = MllamaForCausalLM(config=config)
|
||
model.to(torch_device)
|
||
model.eval()
|
||
with torch.autocast(device_type="cuda", dtype=torch.float16):
|
||
logits = model(
|
||
input_ids=input_ids,
|
||
attention_mask=attention_mask,
|
||
return_dict=True,
|
||
)["logits"]
|
||
self.parent.assertFalse(torch.isnan(logits).any().item())
|
||
|
||
|
||
@require_torch
|
||
class MllamaForCausalLMModelTest(ModelTesterMixin, GenerationTesterMixin, unittest.TestCase):
|
||
"""
|
||
Model tester for `MllamaForConditionalGeneration`.
|
||
"""
|
||
|
||
all_model_classes = (MllamaForCausalLM,) if is_torch_available() else ()
|
||
all_generative_model_classes = (MllamaForCausalLM,) if is_torch_available() else ()
|
||
test_pruning = False
|
||
test_head_masking = False
|
||
|
||
def setUp(self):
|
||
self.model_tester = MllamaText2TextModelTester(self)
|
||
self.config_tester = ConfigTester(self, config_class=MllamaTextConfig, has_text_modality=True)
|
||
|
||
|
||
class MllamaVisionText2TextModelTester:
|
||
def __init__(
|
||
self,
|
||
parent,
|
||
ignore_index=-100,
|
||
image_token_index=4,
|
||
seq_length=7,
|
||
is_training=True,
|
||
text_config={
|
||
"model_type": "mllama",
|
||
"vocab_size": 99,
|
||
"hidden_size": 32,
|
||
"num_hidden_layers": 4,
|
||
"num_attention_heads": 4,
|
||
"num_key_value_heads": 4,
|
||
"intermediate_size": 37,
|
||
"hidden_act": "gelu",
|
||
"max_position_embeddings": 512,
|
||
"initializer_range": 0.02,
|
||
"rope_scaling": {"rope_type": "default"},
|
||
"pad_token_id": 0,
|
||
"bos_token_id": 1,
|
||
"eos_token_id": 2,
|
||
"cross_attention_layers": [1],
|
||
},
|
||
vision_config={
|
||
"image_size": 30,
|
||
"patch_size": 2,
|
||
"num_channels": 3,
|
||
"hidden_size": 16,
|
||
"intermediate_layers_indices": [0],
|
||
"vision_output_dim": 32,
|
||
"projection_dim": 32,
|
||
"num_hidden_layers": 6,
|
||
"num_global_layers": 2,
|
||
"num_attention_heads": 4,
|
||
"intermediate_size": 37,
|
||
"dropout": 0.1,
|
||
"initializer_range": 0.02,
|
||
"supported_aspect_ratios": [[1, 1], [1, 2], [1, 3], [1, 4], [2, 1], [2, 2], [3, 1], [4, 1]],
|
||
},
|
||
):
|
||
self.parent = parent
|
||
self.is_training = is_training
|
||
self.ignore_index = ignore_index
|
||
self.image_token_index = image_token_index
|
||
self.text_config = text_config
|
||
self.vision_config = vision_config
|
||
self.seq_length = seq_length
|
||
|
||
self.num_hidden_layers = text_config["num_hidden_layers"]
|
||
self.vocab_size = text_config["vocab_size"]
|
||
self.hidden_size = text_config["hidden_size"]
|
||
self.num_attention_heads = text_config["num_attention_heads"]
|
||
self.pad_token_id = self.text_config["pad_token_id"]
|
||
|
||
self.batch_size = 3
|
||
self.num_channels = 3
|
||
self.image_size = 224
|
||
self.max_num_images = 1
|
||
self.max_image_tiles = 4
|
||
self.image_length = 904
|
||
|
||
def get_config(self):
|
||
return MllamaConfig(
|
||
text_config=self.text_config,
|
||
vision_config=self.vision_config,
|
||
image_token_index=self.image_token_index,
|
||
)
|
||
|
||
def prepare_config_and_inputs(self):
|
||
pixel_values = floats_tensor(
|
||
[
|
||
self.batch_size,
|
||
self.max_num_images,
|
||
self.max_image_tiles,
|
||
self.vision_config["num_channels"],
|
||
self.vision_config["image_size"],
|
||
self.vision_config["image_size"],
|
||
]
|
||
)
|
||
aspect_ratio_ids = torch.tensor([[6] * self.batch_size], device=torch_device).transpose(0, 1)
|
||
aspect_ratio_mask = torch.ones(self.batch_size, self.max_num_images, self.max_image_tiles)
|
||
config = self.get_config()
|
||
|
||
return config, pixel_values, aspect_ratio_ids, aspect_ratio_mask
|
||
|
||
def prepare_config_and_inputs_for_common(self):
|
||
config_and_inputs = self.prepare_config_and_inputs()
|
||
config, pixel_values, aspect_ratio_ids, aspect_ratio_mask = config_and_inputs
|
||
input_ids = ids_tensor([self.batch_size, self.seq_length], config.text_config.vocab_size - 1) + 1
|
||
attention_mask = input_ids.ne(1).to(torch_device)
|
||
aspect_ratio_mask = aspect_ratio_mask.to(torch_device)
|
||
cross_attention_mask = torch.ones(
|
||
(self.batch_size, self.seq_length, self.max_num_images, self.max_image_tiles), device=torch_device
|
||
)
|
||
|
||
input_ids[input_ids == config.image_token_index] = self.pad_token_id
|
||
input_ids[:, 1] = config.image_token_index
|
||
inputs_dict = {
|
||
"pixel_values": pixel_values,
|
||
"aspect_ratio_ids": aspect_ratio_ids,
|
||
"input_ids": input_ids,
|
||
"attention_mask": attention_mask,
|
||
"aspect_ratio_mask": aspect_ratio_mask,
|
||
"cross_attention_mask": cross_attention_mask,
|
||
"use_cache": True,
|
||
}
|
||
return config, inputs_dict
|
||
|
||
def create_and_check_mllama_model_fp16_forward(self, config, input_ids, pixel_values, attention_mask):
|
||
model = MllamaForConditionalGeneration(config=config)
|
||
model.to(torch_device)
|
||
model.eval()
|
||
with torch.autocast(device_type="cuda", dtype=torch.float16):
|
||
logits = model(
|
||
input_ids=input_ids,
|
||
attention_mask=attention_mask,
|
||
pixel_values=pixel_values.to(torch.bfloat16),
|
||
return_dict=True,
|
||
)["logits"]
|
||
self.parent.assertFalse(torch.isnan(logits).any().item())
|
||
|
||
|
||
@require_torch
|
||
class MllamaForConditionalGenerationModelTest(ModelTesterMixin, GenerationTesterMixin, unittest.TestCase):
|
||
"""
|
||
Model tester for `MllamaForConditionalGeneration`.
|
||
"""
|
||
|
||
all_model_classes = (MllamaForConditionalGeneration,) if is_torch_available() else ()
|
||
all_generative_model_classes = (MllamaForConditionalGeneration,) if is_torch_available() else ()
|
||
test_pruning = False
|
||
test_head_masking = False
|
||
test_torchscript = False
|
||
_is_composite = True
|
||
|
||
def setUp(self):
|
||
self.model_tester = MllamaVisionText2TextModelTester(self)
|
||
self.config_tester = ConfigTester(self, config_class=MllamaConfig, has_text_modality=False)
|
||
|
||
# overwrite inputs_embeds tests because we need to delete "pixel values" for LVLMs
|
||
def test_inputs_embeds(self):
|
||
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()
|
||
|
||
inputs = self._prepare_for_class(inputs_dict, model_class)
|
||
|
||
input_ids = inputs["input_ids"]
|
||
del inputs["input_ids"]
|
||
del inputs["pixel_values"]
|
||
|
||
wte = model.get_input_embeddings()
|
||
inputs["inputs_embeds"] = wte(input_ids)
|
||
|
||
with torch.no_grad():
|
||
model(**inputs)
|
||
|
||
# overwrite inputs_embeds tests because we need to delete "pixel values" for LVLMs
|
||
# while some other models require pixel_values to be present
|
||
def test_inputs_embeds_matches_input_ids(self):
|
||
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()
|
||
|
||
inputs = self._prepare_for_class(inputs_dict, model_class)
|
||
input_ids = inputs["input_ids"]
|
||
del inputs["input_ids"]
|
||
del inputs["pixel_values"]
|
||
|
||
inputs_embeds = model.get_input_embeddings()(input_ids)
|
||
|
||
with torch.no_grad():
|
||
out_ids = model(input_ids=input_ids, **inputs)[0]
|
||
out_embeds = model(inputs_embeds=inputs_embeds, **inputs)[0]
|
||
self.assertTrue(torch.allclose(out_embeds, out_ids))
|
||
|
||
def _check_attentions_for_generate(
|
||
self, batch_size, attentions, min_length, max_length, config, use_cache=False, num_beam_groups=1
|
||
):
|
||
# Mllama has cross attention layers and those have a different shape than normal attention layers
|
||
self.assertIsInstance(attentions, tuple)
|
||
self.assertListEqual(
|
||
[isinstance(iter_attentions, tuple) for iter_attentions in attentions], [True] * len(attentions)
|
||
)
|
||
self.assertEqual(len(attentions), (max_length - min_length) * num_beam_groups)
|
||
|
||
cross_attention_layers = self.model_tester.text_config["cross_attention_layers"]
|
||
|
||
for idx, iter_attentions in enumerate(attentions):
|
||
tgt_len = min_length + idx if not use_cache else 1
|
||
src_len = min_length + idx
|
||
|
||
expected_shape = (
|
||
batch_size * num_beam_groups,
|
||
config.num_attention_heads,
|
||
tgt_len,
|
||
src_len,
|
||
)
|
||
|
||
expected_shape_cross = (
|
||
batch_size * num_beam_groups,
|
||
config.num_attention_heads,
|
||
tgt_len,
|
||
self.model_tester.image_length,
|
||
)
|
||
|
||
expected_shapes = [
|
||
expected_shape if layer_idx not in cross_attention_layers else expected_shape_cross
|
||
for layer_idx in range(len(iter_attentions))
|
||
]
|
||
|
||
self.assertListEqual([layer_attention.shape for layer_attention in iter_attentions], expected_shapes)
|
||
|
||
@require_torch_sdpa
|
||
@slow
|
||
@is_flaky()
|
||
def test_eager_matches_sdpa_inference_1_bfloat16(self):
|
||
# A workaround to override parametrized test with flaky decorator
|
||
super().test_eager_matches_sdpa_inference_1_bfloat16()
|
||
|
||
@unittest.skip("For some unknown reasons the tests fails in CrossAttention layer when doing torch.sdpa(). ")
|
||
def test_sdpa_can_compile_dynamic(self):
|
||
pass
|
||
|
||
@unittest.skip(reason="AssertionError: Items in the second set but not the first: might be a setting issue")
|
||
def test_model_parallelism(self):
|
||
pass
|
||
|
||
def test_generate_text_only_with_cache(self):
|
||
"""
|
||
Tests that our cached generation with text-only inputs works. When mllama was introduced, this feature
|
||
required cache modifications (because layers are skipped in practice). This test should prevent regressions.
|
||
"""
|
||
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()
|
||
|
||
inputs = self._prepare_for_class(inputs_dict, model_class)
|
||
|
||
input_ids = inputs["input_ids"]
|
||
del inputs["input_ids"]
|
||
del inputs["pixel_values"]
|
||
|
||
model.generate(input_ids, use_cache=True)
|
||
|
||
|
||
@require_torch
|
||
class MllamaForConditionalGenerationIntegrationTest(unittest.TestCase):
|
||
def setUp(self):
|
||
self.base_model_checkpoint = "meta-llama/Llama-3.2-11B-Vision"
|
||
self.instruct_model_checkpoint = "meta-llama/Llama-3.2-11B-Vision-Instruct"
|
||
|
||
def tearDown(self):
|
||
gc.collect()
|
||
torch.cuda.empty_cache()
|
||
|
||
@slow
|
||
@require_torch_gpu
|
||
@require_bitsandbytes
|
||
@require_read_token
|
||
def test_11b_model_integration_generate(self):
|
||
# Prepare inputs
|
||
processor = AutoProcessor.from_pretrained(self.base_model_checkpoint)
|
||
|
||
prompt = "<|image|>If I had to write a haiku for this one"
|
||
url = "https://llava-vl.github.io/static/images/view.jpg"
|
||
image = Image.open(requests.get(url, stream=True).raw)
|
||
|
||
inputs = processor(text=prompt, images=image, return_tensors="pt").to(torch_device)
|
||
|
||
# Check inputs ids
|
||
expected_input_ids = torch.tensor([[128256, 128000, 2746, 358, 1047, 311, 3350, 264, 6520, 39342, 369, 420, 832]], device=torch_device) # fmt: skip
|
||
self.assertTrue(torch.equal(inputs["input_ids"], expected_input_ids))
|
||
|
||
# Load model in 4 bit
|
||
quantization_config = BitsAndBytesConfig(load_in_4bit=True)
|
||
model = MllamaForConditionalGeneration.from_pretrained(
|
||
self.base_model_checkpoint, quantization_config=quantization_config
|
||
)
|
||
|
||
# Generate
|
||
output = model.generate(**inputs, do_sample=False, max_new_tokens=25)
|
||
|
||
decoded_output = processor.decode(output[0], skip_special_tokens=True)
|
||
expected_output = "If I had to write a haiku for this one, it would be:.\\nI'm not a poet.\\nBut I'm a photographer.\\nAnd I'm a" # fmt: skip
|
||
|
||
self.assertEqual(
|
||
decoded_output,
|
||
expected_output,
|
||
f"Decoded output: {decoded_output}\nExpected output: {expected_output}",
|
||
)
|
||
|
||
@slow
|
||
@require_torch_gpu
|
||
@require_bitsandbytes
|
||
@require_read_token
|
||
def test_11b_model_integration_generate_text_only(self):
|
||
# Prepare inputs
|
||
processor = AutoProcessor.from_pretrained(self.base_model_checkpoint)
|
||
prompt = "If I had to write a haiku"
|
||
inputs = processor(text=prompt, return_tensors="pt").to(torch_device)
|
||
|
||
# Check inputs ids
|
||
expected_input_ids = [128000, 2746, 358, 1047, 311, 3350, 264, 6520, 39342]
|
||
self.assertEqual(inputs["input_ids"].cpu().squeeze().tolist(), expected_input_ids)
|
||
|
||
# Load model in 4 bit
|
||
quantization_config = BitsAndBytesConfig(load_in_4bit=True)
|
||
model = MllamaForConditionalGeneration.from_pretrained(
|
||
self.base_model_checkpoint, quantization_config=quantization_config
|
||
)
|
||
|
||
# Generate
|
||
output = model.generate(**inputs, do_sample=False, max_new_tokens=25)
|
||
|
||
decoded_output = processor.decode(output[0], skip_special_tokens=True)
|
||
expected_output = "If I had to write a haiku about my life, I think it would be something like:\n\"Life is a messy stream\nTwists and turns, ups" # fmt: skip
|
||
|
||
self.assertEqual(
|
||
decoded_output,
|
||
expected_output,
|
||
f"Decoded output: {decoded_output}\nExpected output: {expected_output}",
|
||
)
|
||
|
||
@slow
|
||
@require_torch_gpu
|
||
@require_bitsandbytes
|
||
@require_read_token
|
||
def test_11b_model_integration_forward(self):
|
||
# Prepare inputs
|
||
processor = AutoProcessor.from_pretrained(self.base_model_checkpoint)
|
||
|
||
prompt = "<|image|>If I had to write a haiku for this one"
|
||
url = "https://llava-vl.github.io/static/images/view.jpg"
|
||
image = Image.open(requests.get(url, stream=True).raw)
|
||
|
||
inputs = processor(text=prompt, images=image, return_tensors="pt").to(torch_device)
|
||
|
||
# Load model in 4 bit
|
||
quantization_config = BitsAndBytesConfig(load_in_4bit=True)
|
||
model = MllamaForConditionalGeneration.from_pretrained(
|
||
self.base_model_checkpoint, quantization_config=quantization_config
|
||
)
|
||
|
||
# Forward
|
||
with torch.inference_mode():
|
||
output = model(**inputs)
|
||
|
||
actual_logits = output.logits[0, -1, :5].cpu()
|
||
expected_logits = torch.tensor([8.3594, 7.7148, 4.7266, 0.7803, 3.1504])
|
||
self.assertTrue(
|
||
torch.allclose(actual_logits, expected_logits, atol=0.1),
|
||
f"Actual logits: {actual_logits}"
|
||
f"\nExpected logits: {expected_logits}"
|
||
f"\nDifference: {torch.abs(actual_logits - expected_logits)}",
|
||
)
|
||
|
||
@slow
|
||
@require_torch_gpu
|
||
@require_bitsandbytes
|
||
@require_read_token
|
||
def test_11b_model_integration_batched_generate(self):
|
||
processor = AutoProcessor.from_pretrained(self.base_model_checkpoint)
|
||
|
||
# Prepare inputs
|
||
prompt = [
|
||
"<|image|>If I had to write a haiku for this one",
|
||
"<|image|>This image shows",
|
||
]
|
||
image1 = Image.open(requests.get("https://llava-vl.github.io/static/images/view.jpg", stream=True).raw)
|
||
image2 = Image.open(requests.get("https://www.ilankelman.org/stopsigns/australia.jpg", stream=True).raw)
|
||
|
||
inputs = processor(text=prompt, images=[[image1], [image2]], padding=True, return_tensors="pt").to(
|
||
torch_device
|
||
)
|
||
|
||
# Load model in 4 bit
|
||
quantization_config = BitsAndBytesConfig(load_in_4bit=True)
|
||
model = MllamaForConditionalGeneration.from_pretrained(
|
||
self.base_model_checkpoint, quantization_config=quantization_config
|
||
)
|
||
|
||
output = model.generate(**inputs, do_sample=False, max_new_tokens=25)
|
||
|
||
# Check first output
|
||
decoded_output = processor.decode(output[0], skip_special_tokens=True)
|
||
expected_output = "If I had to write a haiku for this one, it would be:.\\nI'm not a poet.\\nBut I'm a photographer.\\nAnd I'm a" # fmt: skip
|
||
|
||
self.assertEqual(
|
||
decoded_output,
|
||
expected_output,
|
||
f"Decoded output: {decoded_output}\nExpected output: {expected_output}",
|
||
)
|
||
|
||
# Check second output
|
||
decoded_output = processor.decode(output[1], skip_special_tokens=True)
|
||
expected_output = "This image shows is a photograph of a stop sign in front of a Chinese archway. The stop sign is red with white letters and is" # fmt: skip
|
||
|
||
self.assertEqual(
|
||
decoded_output,
|
||
expected_output,
|
||
f"Decoded output: {decoded_output}\nExpected output: {expected_output}",
|
||
)
|
||
|
||
@slow
|
||
@require_torch_gpu
|
||
@require_bitsandbytes
|
||
@require_read_token
|
||
def test_11b_model_integration_multi_image_generate(self):
|
||
processor = AutoProcessor.from_pretrained(self.instruct_model_checkpoint)
|
||
|
||
# Prepare inputs
|
||
image1 = Image.open(requests.get("https://llava-vl.github.io/static/images/view.jpg", stream=True).raw)
|
||
image2 = Image.open(requests.get("https://www.ilankelman.org/stopsigns/australia.jpg", stream=True).raw)
|
||
|
||
conversation = [
|
||
{
|
||
"role": "user",
|
||
"content": [
|
||
{"type": "image"},
|
||
{"type": "text", "text": "What’s shown in this image?"},
|
||
],
|
||
},
|
||
{
|
||
"role": "assistant",
|
||
"content": [
|
||
{"type": "text", "text": "This image shows a long wooden dock extending out into a lake."}
|
||
],
|
||
},
|
||
{
|
||
"role": "user",
|
||
"content": [
|
||
{"type": "image"},
|
||
{"type": "text", "text": "What about this one, what do you see here? Can you describe in detail?"},
|
||
],
|
||
},
|
||
]
|
||
|
||
prompt = processor.apply_chat_template(conversation, add_generation_prompt=True)
|
||
inputs = processor(text=prompt, images=[[image1, image2]], return_tensors="pt").to(torch_device)
|
||
prompt_len = inputs["input_ids"].shape[-1]
|
||
|
||
# Load model in 4 bit
|
||
quantization_config = BitsAndBytesConfig(load_in_4bit=True)
|
||
model = MllamaForConditionalGeneration.from_pretrained(
|
||
self.instruct_model_checkpoint, quantization_config=quantization_config
|
||
)
|
||
|
||
output = model.generate(**inputs, do_sample=False, max_new_tokens=25)
|
||
|
||
# Check first output
|
||
generated_output = output[0][prompt_len:]
|
||
decoded_output = processor.decode(generated_output, skip_special_tokens=False)
|
||
|
||
# model should response about "stop sign", however it responses about "dock"
|
||
# this happens only in quantized version, bfloat16 works fine
|
||
expected_output = "This image shows a long wooden dock extending out into a lake. The dock is made of wooden planks and has a railing"
|
||
|
||
self.assertEqual(
|
||
decoded_output,
|
||
expected_output,
|
||
f"Decoded output: {decoded_output}\nExpected output: {expected_output}",
|
||
)
|