Thanks Gustavo for writing in about the problem, and Pooja for triaging.

A fix has already been implemented and merged (https://github.com/nest/nestml/pull/901). Gustovo, could we ask you to try to run your code again with the latest master branch version of NESTML? Please let us know if you run into any trouble with installation or during runtime.

On Sun, May 7, 2023, at 21:54, Babu, Pooja wrote:

Thank you for sharing the code.

I looked at the generated code and found that there is indeed a bug in NESTML for this particular case where the equation has a numeric solver and refers to a spiking input port. I have created an issue for this: https://github.com/nest/nestml/issues/900

While we fix this issue, could I ask you to make a small change in the generated code? In the file izhikevich_ODE.cpp, please replace the line 315 with the below code:

f[State_::SS] = (-0.001) * ode_state[State_::SS] / node.P_.tau + 0.001 * node.P_.S_jump * node.B_.spike_inputs_grid_sum_[izhikevich_ODE::SPIKES - izhikevich_ODE::MIN_SPIKE_RECEPTOR] / node.P_.N;

After this, compile the code by going into the target directory and running make and make install.

Please note that it would take some time for us to fix this and apologize for the inconvenience.

I hope this fix helps!

On 7. May 2023, at 20:01, Gustavo Patow <gustavo.patow@udg.edu> wrote:

Dear Pooja,

The nestml file is this one (direct link):

https://www.dropbox.com/s/esj5ngyjkui0024/izhikevich_ODE.nestml?dl=0

And the contents of /tmp/nestml-component/ is in the following zip file:

https://www.dropbox.com/s/u10ivrs6y3v1pyr/nestml-component.zip?dl=0

I am sorry of this is not what you asked for, as I said, I am too newbie in nest/nestml...

best

gus.-

--
Prof. Dr. Gustavo A. PATOW
ViRVIG-UdG and CNS-UPF
Edifici P-IV, Campus Montilivi,
Universitat de Girona,
17003 Girona, SPAIN

http://imae.udg.edu/~dagush/

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