fix: use nanosecond experiment timestamps - #571
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Reduce experiment directory collisions by using time_ns for generated and reset experiment IDs. Add focused coverage for both paths. Signed-off-by: Alex Filby <[email protected]>
ko3n1g
approved these changes
Jul 27, 2026
ko3n1g
enabled auto-merge (squash)
July 27, 2026 19:34
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Reduce experiment directory collisions by using time_ns for generated experiment IDs.
We've run into a race condition a few times with DGXC benchmarks where users will try and launch multiple instance of the same experiment in parallel to overcome the slow nemo-run submit times. As the current timestamp is second based, and the folder is not created right after it's checked it's possible for:
Two experiments to share the exact same folder
The first experiment to launch and the second to get a folder exist error.
This fix doesn't address the underlaying race condition, but should reduce the frequency and is also a necessary step if we can get nemo-run submissions to be sub-second.
Supersedes: #563