Opened 7 years ago
Last modified 3 years ago
#4711 new defect
DrumBoiler model unnecessarily slow due to lack of analytic jacobiann
| Reported by: | Francesco Casella | Owned by: | Patrick Täuber |
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| Priority: | high | Milestone: | |
| Component: | Backend | Version: | |
| Keywords: | Cc: | Willi Braun |
Description
The model Modelica.Fluid.Examples.DrumBoiler.DrumBoiler is slower than necessary because of an implicit system that is not recognized as linear and thus solved iteratively, which wastes a lot of time because of the computation involved and the call to the IF97 rhovl_p() function, see ticket:4423#comment:16 for more details.
The system is not recognized as linear because the analytical evaluation of the Jacobian fails. It would be worth investigating why that is the case and if it is possible to avoid this failure.
Change History (5)
comment:1 by , 6 years ago
| Milestone: | 1.13.0 → 1.14.0 |
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comment:2 by , 5 years ago
| Milestone: | 1.14.0 → 1.16.0 |
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Releasing 1.14.0 which is stable and has many improvements w.r.t. 1.13.2. This issue is rescheduled to 1.16.0
comment:4 by , 4 years ago
| Milestone: | 1.17.0 → 1.18.0 |
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Retargeted to 1.18.0 because of 1.17.0 timed release.
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Rescheduled to 1.14.0 after 1.13.0 releasee