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[Bug] Fixing test_gpu_sampling_DataLoader that fails with torch 2.7. #7876

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[Bug] Fixing test_gpu_sampling_DataLoader that fails with torch 2.7. #7876

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2dc1da7
Fixing `test_gpu_sampling_DataLoader` that fails with torch 2.7
drivanov Mar 19, 2025
8ef605c
Fixing lint problem
drivanov Mar 19, 2025
d508370
Fixing lint problem
drivanov Mar 19, 2025
453f0cc
Fixing lint problem
drivanov Mar 19, 2025
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29 changes: 24 additions & 5 deletions tests/python/pytorch/graphbolt/test_dataloader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -88,11 +88,30 @@ def test_gpu_sampling_DataLoader(
if platform == "win32"
else "tcp://127.0.0.1:12345"
)
thd.init_process_group(
init_method=init_method,
world_size=1,
rank=0,
)

from torch.torch_version import TorchVersion

if TorchVersion(torch.__version__) >= TorchVersion("2.7.0a"):
if not thd.is_mpi_available():
import warnings

warnings.warn(
"MPY backend should be available for "
"cooperative optimization"
)
return

thd.init_process_group(
backend="mpi",
init_method=init_method,
)
else:
thd.init_process_group(
init_method=init_method,
world_size=1,
rank=0,
)

N = 40
B = 4
num_layers = 2
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