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Running
on
Zero
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import gc
import unittest
import torch
from diffusers import (
SanaTransformer2DModel,
)
from diffusers.utils.testing_utils import (
backend_empty_cache,
enable_full_determinism,
require_torch_accelerator,
torch_device,
)
enable_full_determinism()
@require_torch_accelerator
class SanaTransformer2DModelSingleFileTests(unittest.TestCase):
model_class = SanaTransformer2DModel
ckpt_path = (
"https://huggingface.co/Efficient-Large-Model/Sana_1600M_1024px/blob/main/checkpoints/Sana_1600M_1024px.pth"
)
alternate_keys_ckpt_paths = [
"https://huggingface.co/Efficient-Large-Model/Sana_1600M_1024px/blob/main/checkpoints/Sana_1600M_1024px.pth"
]
repo_id = "Efficient-Large-Model/Sana_1600M_1024px_diffusers"
def setUp(self):
super().setUp()
gc.collect()
backend_empty_cache(torch_device)
def tearDown(self):
super().tearDown()
gc.collect()
backend_empty_cache(torch_device)
def test_single_file_components(self):
model = self.model_class.from_pretrained(self.repo_id, subfolder="transformer")
model_single_file = self.model_class.from_single_file(self.ckpt_path)
PARAMS_TO_IGNORE = ["torch_dtype", "_name_or_path", "_use_default_values", "_diffusers_version"]
for param_name, param_value in model_single_file.config.items():
if param_name in PARAMS_TO_IGNORE:
continue
assert model.config[param_name] == param_value, (
f"{param_name} differs between single file loading and pretrained loading"
)
def test_checkpoint_loading(self):
for ckpt_path in self.alternate_keys_ckpt_paths:
torch.cuda.empty_cache()
model = self.model_class.from_single_file(ckpt_path)
del model
gc.collect()
torch.cuda.empty_cache()
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