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Additional 42 multi gpu #51

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Merged
wyli merged 1 commit into from
Feb 7, 2020
Merged

Additional 42 multi gpu #51

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10 changes: 9 additions & 1 deletion tests/test_parallel_execution.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,18 +25,26 @@ def fake_data_stream():
while True:
yield torch.rand((10, 1, 64, 64)), torch.rand((10, 1, 64, 64))

def expect_failure_if_no_gpu(test):
if not torch.cuda.is_available():
return unittest.expectedFailure(test)
else:
return test


class TestParallelExecution(unittest.TestCase):
"""
Tests single GPU, multi GPU, and CPU execution with the Ignite supervised trainer.
"""

@expect_failure_if_no_gpu
def test_single_gpu(self):
net = torch.nn.Conv2d(1, 1, 3, padding=1)
opt = torch.optim.Adam(net.parameters(), 1e-3)
trainer = create_multigpu_supervised_trainer(net, opt, fake_loss, [0])
trainer = create_multigpu_supervised_trainer(net, opt, fake_loss, [torch.device("cuda:0")])
trainer.run(fake_data_stream(), 2, 2)

@expect_failure_if_no_gpu
def test_multi_gpu(self):
net = torch.nn.Conv2d(1, 1, 3, padding=1)
opt = torch.optim.Adam(net.parameters(), 1e-3)
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