Lower the default local parallelism, and align the number of swimlanes to it #10499
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…s to the amount of parallelism. # Building wheels and fs_util will be skipped. Delete if not intended. [ci skip-build-wheels]
benjyw
approved these changes
Jul 29, 2020
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Problem
It's pretty easy to overwhelm a machine with
2*multiprocessing.cpu_count()processes running (especially since it frequently reports the number of virtual cores rather than physical cores), so this isn't a great default for local parallelism. Additionally, the number of swimlanes rendered in the dynamic UI is out of alignment with our configured parallelism.Solution
Lower the default parallelism to
multiprocessing.cpu_count(), and align the swimlane count.[ci skip-build-wheels]