On Tue, Mar 3, 2020 at 11:11 AM Jochen Martin Eppler <j.eppler@fz-juelich.de> wrote:

Hi!

Your error looks a lot like a Python 2/3 mixup to me. This usually
happens if you compile NEST against Python 2, while you run it using
Python 3, or the other way around. Please make sure that your
environment is consistent with respect to Python versions.

Please note that we're not supporting Python 2 in all future versions of
NEST, as it (finally!) reached it's well-deserved end of life.

Cheers,
Jochen!

On 03.03.20 10:32, Mohammadreza Mohagheghi Nejad wrote:
> Dear Jochen,
>
> Thank you very much! Found it there. However, I got the following error,
> this time, from the python script (given as an example on the website,
> attached anyways). Maybe this is important for you to know that, with my
> current compilation of NEST and MUSIC, I could successfully run MUSIC
> for two NEST simulations communicating spike events between the two.
>
> OS: Ubuntu 18.04.4 LTS, NEST v2.16.0 compiled by cmake downloaded from
> https://github.com/INM-6/closed-loop-learning-in-autonomous-agents
>
> --------------ERROR--------------
> Traceback (most recent call last):
> File "./conttest.py", line 3, in <module>
> import nest
> File
> "/local/work/Projects/closed-loop-learning/NEST/lib/python3.7/site-packages/nest/__init__.py",
> line 26, in <module>
> from . import ll_api # noqa
> File
> "/local/work/Projects/closed-loop-learning/NEST/lib/python3.7/site-packages/nest/ll_api.py",
> line 72, in <module>
> from . import pynestkernel as kernel # noqa
> ImportError: dynamic module does not define init function (initpynestkernel)
> -------------------------------------------------------
> Primary job terminated normally, but 1 process returned
> a non-zero exit code.. Per user-direction, the job has been aborted.
> -------------------------------------------------------
> [warn] Epoll ADD(4) on fd 33 failed. Old events were 0; read change was
> 0 (none); write change was 1 (add): Bad file descriptor
> --------------------------------------------------------------------------
> mpirun detected that one or more processes exited with non-zero status,
> thus causing
> the job to be terminated. The first process to do so was:
>
> Process name: [[59388,1],1]
> Exit code: 1
> --------------------------------------------------------------------------
> --------------ERROR--------------
>
>
> Best wishes,
>
> Mohammad
>
> On Mon, Mar 2, 2020 at 9:10 PM Jochen Martin Eppler
> <j.eppler@fz-juelich.de <mailto:j.eppler@fz-juelich.de>> wrote:
>
> Dear Mohammad,
>
> the constsource binary is not part of NEST, but of MUSIC. After building
> and installing MUSIC, you will find it in
> <MUSIC_INSTALL_PREFIX>/lib/music-<MUSIC_VERSION>.
>
> Cheers,
> Jochen!
>
> On 02.03.20 16:15, Mohammadreza Mohagheghi Nejad wrote:
> > Dear all,
> >
> > I am trying to use music ports for my simulations, which requires
> > continuous transmission of data to NEST. I would like to test
> them in a
> > toy example before integrating them in my project to make sure I am
> > using them as I should. So, under section "Receiving continuous
> data" in
> > "Guides\Using NEST with MUSIC"
> >
> (https://nest-simulator.readthedocs.io/en/stable/guides/using_nest_with_music.html),
> > I found a guide for this functionality of NEST, however, the binary
> > "constsource" is not available. Does anybody have any idea where
> I can
> > find it?
> >
> > Thank you very much in advance for your help,
> >
> > Best wishes,
> >
> > Mohammad
> >
> > --
> > Mohammadreza Mohagheghi Nejad
> >
> > Postdoctoral researcher in computational neuroscience,
> > Institute of Neural Computation,
> > Ruhr University Bochum, Germany
> >
> https://www.ini.rub.de/the_institute/people/mohammadreza-mohagheghi_nejad/
> >
> > _______________________________________________
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> >
>
> --
> Dr. Jochen Martin Eppler
> Phone: +49(2461)61-96653
> ----------------------------------
> Simulation Laboratory Neuroscience
> Jülich Supercomputing Centre
> Institute for Advanced Simulation
>
>
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>
>
>
> --
> Mohammadreza Mohagheghi Nejad
>
> Postdoctoral researcher in computational neuroscience,
> Institute of Neural Computation,
> Ruhr University Bochum, Germany
> https://www.ini.rub.de/the_institute/people/mohammadreza-mohagheghi_nejad/
>
> _______________________________________________
> NEST Users mailing list -- users@nest-simulator.org
> To unsubscribe send an email to users-leave@nest-simulator.org
>

--
Dr. Jochen Martin Eppler
Phone: +49(2461)61-96653
----------------------------------
Simulation Laboratory Neuroscience
Jülich Supercomputing Centre
Institute for Advanced Simulation
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