[SOSlib-devel] Problem with senstivities

[W E. W. <wew...@gm...>]

Hi,

I am running the solver in a loop.

the loop includes:
{
change of the parameters
running the solver
and a call to IntegratorInstance_reset(integratorInstance);
}

What I observe and call a problem is that every new simulator run in
the loop generates increasing sensitivity values for the same
parameter values and model.

The following output are the date stored in:

integratorInstance->data->sensitivity
entries
integratorInstance->data->nsens, integratorInstance->data->neq

first iteration

parameters:  par[0] 2.000000  par[1] 8.000000  par[2] 10.000000
par[3] 0.100000  par[4] 2.000000

24.33599	-12.44311	-1.60336	0.28326	26.31235	-0.12182	0.00000	0.00000	
-24.33599	12.44311	1.60336	-0.28326	-26.31235	0.12182	0.00000	11.93225	
11.93225	-4.09705	-0.54112	0.08923	8.68924	-0.04727	0.00000	-7.76276	
-7.76276	2.05021	0.27103	-0.04458	-4.34843	0.02380	0.00000	-4.16949	
-4.16949	2.04684	0.27009	-0.04465	-4.34081	0.02346	0.00000	-0.26712	
-0.26712	-0.45221	-0.06041	0.00965	0.95925	-0.00565	0.00000	-1.57271	


while the 10 iteration:

-1394.82594	399.44848	59.25448	-19.98846	-2225.46440	3.11907	0.00000	0.00000	
1394.82594	-399.44848	-59.25448	19.98846	2225.46440	-3.11907	0.00000	-21877.33372
-21877.33372	6547.28853	971.83061	-324.87728	-36996.03248	52.60350	0.00000	-2206.49496
-2206.49496	666.20014	98.97768	-33.06429	-3791.30589	5.39430	0.00000	24083.82868
24083.82868	-7213.48867	-1070.80829	357.94157	40787.33837	-57.99780	0.00000	-21953.82949
-21953.82949	6578.30322	976.54971	-326.41598	-37205.87555	52.90915	0.00000	12235.00898



I hope that the problem statement is clear but I am happy to answer
more questions.
I am looking forward to suggestions.

Eryk