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[Easy] Add more check for elapsedTime of torch.xxx.Event and torch.Event (#151404)

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As the title stated

**Changes:**
- Add **record**, **query** and **enable_timing** check
- Add related tests
Pull Request resolved: https://github.com/pytorch/pytorch/pull/151404
Approved by: https://github.com/albanD
This commit is contained in:
FFFrog
2025-04-23 14:26:12 +08:00
committed by PyTorch MergeBot
parent 91c590f048
commit 2c5c793085
5 changed files with 68 additions and 10 deletions
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15
test/test_cpp_extensions_stream_and_event.py
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@ -81,21 +81,30 @@ class TestCppExtensionStreamAndEvent(common.TestCase):
def test_stream_event(self):
s = torch.Stream()
self.assertTrue(s.device_type, int(torch._C._autograd.DeviceType.MTIA))
e = torch.Event()
e = torch.Event(enable_timing=True)
e1 = torch.Event(enable_timing=True)
e1.record()
self.assertTrue(e.device.type, "mtia")
# Should be nullptr by default
self.assertTrue(e.event_id == 0)
s.record_event(event=e)
print(f"recorded event 1: {e}")
self.assertTrue(e.event_id != 0)
# The enable_timing of event created by record_event() is false
e2 = s.record_event()
print(f"recorded event 2: {e2}")
self.assertTrue(e2.event_id != 0)
self.assertTrue(e2.event_id != e.event_id)
e.synchronize()
e1.synchronize()
e2.synchronize()
time_elapsed = e.elapsed_time(e2)
print(f"time elapsed between e1 and e2: {time_elapsed}")
time_elapsed = e.elapsed_time(e1)
print(f"time elapsed between e and e1: {time_elapsed}")
with self.assertRaisesRegex(
ValueError,
"Both events must be created with argument 'enable_timing=True'",
):
time_elapsed = e.elapsed_time(e2)
old_event_id = e.event_id
e.record(stream=s)
print(f"recorded event 1: {e}")