Opened 12 years ago
Closed 12 years ago
#1902 closed defect (fixed)
problems with event handling on 32-bit with gcc-4.6
| Reported by: | Owned by: | somebody | |
|---|---|---|---|
| Priority: | high | Milestone: | 1.9.0 |
| Component: | Run-time | Version: | 1.9.0Beta |
| Keywords: | Event Handling, DASSL | Cc: |
Description
I was using MSL 3.1 and omc r13538. Now I switched to MSL 3.2.1 and omc r13569 but I am still experiencing problems with event handling. For instance, in model Modelica.Electrical.Analog.Examples.CharacteristicIdealDiodes the simulation is stuck at t= 0.0833517 when it keeps detecting events for ever.
In model Modelica.Electrical.Analog.Examples.CharacteristicThyristors the problem is similar. Here, it enters a loop at t= 0.0833333 (when the first zero crossing occurs).
Anyway, I think the problem is related to the solver. I am simulating from OMEdit. If I change dassl by dasslwort (I think it is DASSL without internal root finding) it works (but I suspect that it does not search for zero crossings in a correct way).
Change History (1)
comment:1 by , 12 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
| Summary: | problems with event handling → problems with event handling on 32-bit with gcc-4.6 |
The issue was that gcc-4.6 on i386 was using the 387 arithmetics, which lead to wrong behaviour of the dassl code. We fixed it by using on that platforms -ffloat-store, which may slow down the solver.
Fixed in r13621 by Martin.