Dear NEST community,
I was wondering if there have been some changes from NEST 2.x -> 3.x regarding how the SpikeEvent variables are set and their availability in the handle(SpikeEvent& e) function.
With 2.20.0, I could access the sender ID from inside the handle() function. With the current master branch, however, this is not possible anymore (or likely I'm doing it wrong). The following one-line addition to the iaf_cond_exp model (the exact model doesn't really matter):
void nest::iaf_cond_exp::handle( SpikeEvent& e ) { assert( e.get_delay_steps() > 0 );
std::cout << "iaf_cond_exp >> e.get_sender_node_id(): " << e.get_sender_node_id() << std::endl << std::flush;
if ( e.get_weight() > 0.0 ) ...
fails with:
python: /home/zbarni/software/packages/nest/znest/nestkernel/event.h:1336: nest::index nest::Event::get_sender_node_id() const: Assertion `sender_node_id_ > 0' failed.
Furthermore, the SpikeEvent seems invalid (?), as the e.is_valid() call returns a 0. Is this the expected behavior, and if so, are there any alternatives to access the ID of the sender node in the handle() function?
Thank you, Barna
-- Barna Zajzon PhD Candidate
Computation in Neural Circuits Group Institute of Neuroscience and Medicine (INM-6) Institute for Advanced Simulation (IAS-6) JARA Institute Brain Structure-Function Relationships (INM-10) Jülich Research Centre and JARA 52425 Jülich, Germany http://www.fz-juelich.de/inm/inm-6
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Neugierige sind herzlich willkommen am Sonntag, den 21. August 2022, von 10:00 bis 17:00 Uhr. Mehr unter: https://www.tagderneugier.de
Hi Barna,
Yes, this functionality has changes, see PR #2280.
Could you try whether e.retrieve_sender_node_id_from_source_table() works in this case?
Thanks, Susanne
________________________________ From: Barna Zajzon b.zajzon@fz-juelich.de Sent: Friday, June 24, 2022 10:19 PM To: NEST User Mailing List users@nest-simulator.org Subject: [NEST Users] Invalid SpikeEvent variables - e.get_sender_node_id()
You don't often get email from b.zajzon@fz-juelich.de. Learn why this is importanthttps://aka.ms/LearnAboutSenderIdentification
Dear NEST community,
I was wondering if there have been some changes from NEST 2.x -> 3.x regarding how the SpikeEvent variables are set and their availability in the handle(SpikeEvent& e) function.
With 2.20.0, I could access the sender ID from inside the handle() function. With the current master branch, however, this is not possible anymore (or likely I'm doing it wrong). The following one-line addition to the iaf_cond_exp model (the exact model doesn't really matter):
void nest::iaf_cond_exp::handle( SpikeEvent& e ) { assert( e.get_delay_steps() > 0 );
std::cout << "iaf_cond_exp >> e.get_sender_node_id(): " << e.get_sender_node_id() << std::endl << std::flush;
if ( e.get_weight() > 0.0 ) ...
fails with:
python: /home/zbarni/software/packages/nest/znest/nestkernel/event.h:1336: nest::index nest::Event::get_sender_node_id() const: Assertion `sender_node_id_ > 0' failed.
Furthermore, the SpikeEvent seems invalid (?), as the e.is_valid() call returns a 0. Is this the expected behavior, and if so, are there any alternatives to access the ID of the sender node in the handle() function?
Thank you, Barna
-- Barna Zajzon PhD Candidate
Computation in Neural Circuits Group Institute of Neuroscience and Medicine (INM-6) Institute for Advanced Simulation (IAS-6) JARA Institute Brain Structure-Function Relationships (INM-10) Jülich Research Centre and JARA 52425 Jülich, Germany http://www.fz-juelich.de/inm/inm-6
------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------ Forschungszentrum Juelich GmbH 52425 Juelich Sitz der Gesellschaft: Juelich Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Volker Rieke Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender), Karsten Beneke (stellv. Vorsitzender), Prof. Dr. Astrid Lambrecht, Prof. Dr. Frauke Melchior ------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------
Neugierige sind herzlich willkommen am Sonntag, den 21. August 2022, von 10:00 bis 17:00 Uhr. Mehr unter: https://www.tagderneugier.de
-
Barna Zajzon -
Susanne Kunkel