I would ask anyone of you if you can give me any advise or idea to solve the generator problem of this error message:

Code: Select all

```
exp(735.833) out of range, returning exp(700)
exp(735.833) out of range, returning exp(700)
exp(735.833) out of range, returning exp(700)
exp(735.833) out of range, returning exp(700)
No more errno warnings during this execution
CVode-- At t = 2343.46, too much accuracy requested.
CVode d1abb0 Pyramidal[37].soma advance_tn failed, err=-5.
err=-5
nrniv: variable step integrator error
near line 165
layerFS0.o(int(n_FS)-1).soma cvode.record(&v(0.5),TimeSeriesHandler[4].yvec,TimeSeriesHandler[4].tvec)
^
fadvance( )
advance( )
step( )
continuerun(3800 )
and others
errno set 206631 times on last execution
```

I am currently using two of the more stable versions of NEURON 5.8 and 5.9 and I got the same output message with both of them

In the second place, in some cases I just changed constant values of my simulation in such a way that I wrote 0.050001 instead of just 0.5 and the simulation runs longer and in some cases till tstop...

So, is there any special circumstance that generates this kind of output?, which? where? why?

Thanks a lot for your advice

OJAG