The Oct 21 release version of problemtools seems to have severe performance degradation from the April 22 release, on slow-running scripts.
Concrete examples include the ascendingphoto problem from NWERC 2017 (e.g. case 07-big.in went from 4.7 to 6.0 seconds) even though b281d3f, added between the two versions, claims to improve performance on that specific set.
As an extreme example, I found one script that took ~5 minutes to run on the April 22 release, and more than 3 hours (after which I decided to stop waiting) to run on the Oct 21 release.
The Oct 21 release version of problemtools seems to have severe performance degradation from the April 22 release, on slow-running scripts.
Concrete examples include the ascendingphoto problem from NWERC 2017 (e.g. case 07-big.in went from 4.7 to 6.0 seconds) even though b281d3f, added between the two versions, claims to improve performance on that specific set.
As an extreme example, I found one script that took ~5 minutes to run on the April 22 release, and more than 3 hours (after which I decided to stop waiting) to run on the Oct 21 release.