id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4902	Tiny simulation steps after recent nightly build	stig	Francesco Casella	"I'm not sure exactly which build caused the problem, but after software updater did its thing sometime last week my models run with a tiny step-size in both DASSL and IDA whereas they have been just fine before. They are quite big models, but usually solve in 3-6 seconds. Now it takes many hours to simulate the same.

I'm on Lubuntu 16.04 and I've used nightly builds from the repo for the last two years or so, updating the packages maybe once a week. It's for this reason difficult to say exactly which version I was using just before I encountered the problem.

The package containing my models is at https://github.com/FishSim/LibRAS and LibRAS/Examples/Inline.mo is the one I suggest for testing. Even minimal working examples using my package run incredibly slowly due to tiny steps.

In a short test, I got 495 s spent on jacobian for 560 s simulation time, according to DASSL statistics. Can not tell if this is normal or not, but it seems a bit high compared to MSL examples.

Examples from the MSL run just fine, so I don't think it's my system.
"	defect	assigned	high		Backend	v1.13.0-dev-nightly			Willi Braun