Dear NEST Users & Developers!
I would like to invite you to our next fortnightly Open NEST Developer
Video Conference today
Monday 9 November, 11.30-12.30 CET (UTC+1).
In the Project team round, a contact person of each team will give a
short statement summarizing ongoing work in the team and cross-cutting
points that need discussion among the teams. The remainder of the
meeting we would go into a more in-depth discussion of topics that came
up on the mailing list or that are suggested by the teams.
Agenda
Welcome
Review of NEST User Mailing List
Project team round
In-depth discussion
The agenda for this meeting is also available online, see
https://github.com/nest/nest-simulator/wiki/2020-11-09-Open-NEST-Developer-…
Looking forward to seeing you soon!
best,
Dennis Terhorst
------------------
Log-in information
------------------
We use a virtual conference room provided by DFN (Deutsches Forschungsnetz).
You can use the web client to connect. We however encourage everyone to
use a headset for better audio quality or even a proper video
conferencing system (see below) or software when available.
Web client
* Visit https://conf.dfn.de/webapp/conference/97938800
* Enter your name and allow your browser to use camera and microphone
* The conference does not need a PIN to join, just click join and you're in.
In case you see a dfnconf logo and the phrase "Auf den
Meetingveranstalter warten", just be patient, the meeting host needs to
join first (a voice will tell you).
VC system/software
How to log in with a video conferencing system, depends on you VC system
or software.
- Using the H.323 protocol (eg Polycom): vc.dfn.net##97938800 or
194.95.240.2##97938800
- Using the SIP protocol:97938800@vc.dfn.de
- By telephone: +49-30-200-97938800
For those who do not have a video conference system or suitable
software, Polycom provides a pretty good free app for iOS and Android,
so you can join from your tablet (Polycom RealPresence Mobile, available
from AppStore/PlayStore). Note that firewalls may interfere with
videoconferencing in various and sometimes confusing ways.
For more technical information on logging in from various VC systems,
please see
http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4
Hi,I am now simulating a small network for testing on two machines, and run it with the following command. It seems that the two machines run by themselves without interaction,running your own.
mpirun -np 2 -host work0,work1 python ./multi_test.py
Can nest simulate a network in a multi-node cluster environment? If yes, how do the nodes exchange data?
Do you know about the configuration of a parallel cluster environment? I installed NEST under ANCCONDA? Can anyone share some experience?
Hello all,
I use NEST with OpenMPI on a high performance cluster to run plasticity
related network simulations.
So far I have divided my whole job into:
phase 1: data collection (data collected: senders, times, sources,
targets for each time point)
phase 2: data anaylsis (refers to spike count and connectivity calculation)
I face an issue with data-handling. In phase 1, the data pertaining to
each of the four variables is saved in X different files (X = number of
virtual processes), rank-wise. This means that the total number of files
generated goes [ n(time-points)*X*4 ], which surpasses the chunk file
storage limit, per user for the cluster. Each file here is an ndarray
saved as a *.npy file.
I wonder if there is a way to retrieve the data from each of the X
processes while collecting data, concatenating and then saving them? So
instead of X number of files, I can save the concatenated version. This
probably involves recruiting a single VP to collect and concatenate and
save the datapoints, but i am not quite sure how to execute this using
NEST. Any help would be highly appreciated!
Thanks in advance!
Best,
Swathi
Dear all! I want to know how to use stdp_synapse correctly but I noticed there is a sentence 'Another important point is that spikes do NOT pass the Connection object in correct order of biological arrival time—they are unordered in time' about the overview of stdp_synapse; it's the last part of spike handling at website https://nest.github.io/nest-simulator/synapses_overview. So if these spike time are unordered, whether the stdp_synapse function would mimic properly.
Dear NEST Users & Developers!
I would like to invite you to our next fortnightly Open NEST Developer
Video Conference today
Monday 26 October, 11.30-12.30 CET (UTC+1).
Please note that we changed to winter time (UTC+1).
In the Project team round, a contact person of each team will give a
short statement summarizing ongoing work in the team and cross-cutting
points that need discussion among the teams. The remainder of the
meeting we would go into a more in-depth discussion of topics that came
up on the mailing list or that are suggested by the teams.
Agenda
Welcome
Review of NEST User Mailing List
Project team round
In-depth discussion
We will continue discussion on some of the topics of last time:
* Issue #1773 <https://github.com/nest/nest-simulator/issues/1773>:
wrapper around |Prepare| and |Run| (postponed from last time)
* organizing HBP CodeJam#11 activities
<https://www.humanbrainproject.eu/en/education/participatecollaborate/infras…>
The agenda for this meeting is also available online, see
https://github.com/nest/nest-simulator/wiki/2020-10-26-Open-NEST-Developer-…
Looking forward to seeing you soon!
best,
Dennis Terhorst
------------------
Log-in information
------------------
We use a virtual conference room provided by DFN (Deutsches Forschungsnetz).
You can use the web client to connect. We however encourage everyone to
use a headset for better audio quality or even a proper video
conferencing system (see below) or software when available.
Web client
* Visit https://conf.dfn.de/webapp/conference/97938800
* Enter your name and allow your browser to use camera and microphone
* The conference does not need a PIN to join, just click join and you're in.
In case you see a dfnconf logo and the phrase "Auf den
Meetingveranstalter warten", just be patient, the meeting host needs to
join first (a voice will tell you).
VC system/software
How to log in with a video conferencing system, depends on you VC system
or software.
- Using the H.323 protocol (eg Polycom): vc.dfn.net##97938800 or
194.95.240.2##97938800
- Using the SIP protocol:97938800@vc.dfn.de
- By telephone: +49-30-200-97938800
For those who do not have a video conference system or suitable
software, Polycom provides a pretty good free app for iOS and Android,
so you can join from your tablet (Polycom RealPresence Mobile, available
from AppStore/PlayStore). Note that firewalls may interfere with
videoconferencing in various and sometimes confusing ways.
For more technical information on logging in from various VC systems,
please see
http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4
Dear Nest Community,
When trying to reproduce Izhikevich's Simple Neuron Model with NEST
Izhikevich Neuron Model, it is spiking before reaching my V_th potential
threshold setting of 30 mV, producing results inconsistent with the
publication.
Would anybody have insight as to why the neuron is spiking early? Did I
perhaps not include a relevant NEST setting?
I compared it to an explicit implementation of the ODEs, attached, for
your reference of expected neuron response.
Thank you for any suggestions.
Best Regards,
--Allen
Dear all,
I have compiled NEST master@6997cae6c onFedora 32 with both,
1- gcc (10.2.1) and OpenMPI (4.0.4): the default on this distro
2 - Intel Parallel Studio XE update 2 with GSL compiled from source using
the same compiler
using same configuration (-Dwith-mpi=ON, -Dwith-boost=ON) . On Intel,
-Dwith-gsl=${GSL_DIR} was
added to point to the GSL built with the Intel Compiler.
On the gcc configuration, all tests worked fine (I defined
OMPI_MCA_rmaps_base_oversubscribe=1 to
avoid oversubscription error as reported in issue #1758).
On the other hand, on the Intel configuration, several MPI tests have
failed as described in the
attached files. (To allow oversubscription the following variables were
defined: I_MPI_WAIT_MODE=1
and I_MPI_THREAD_YIELD=3)
I report it here as it is probably not directly a NEST code issue, but hope
that someone in the community
could have the answer. If I should submit it as an issue on GitHub, please
let me know.
Attached files:
cmake_command_summary.txt : cmake command invocation and summary
installcheck.log : make installcheck log
reports.tar.gz : reports folder created by make installcheck; it also
contains the instalcheck.log file above
Best,
Nilton
--
Nilton Liuji Kamiji
University of Sao Paulo
Department of Physics, FFCLRP
Laboratory of Neural Systems
Phone: +55 16 3315 3859
Hi,
Has anyone explored the external library support? I am on Fugaku and
the jobs can create casually tens of thousands of files in a single directory;
this aborts jobs.
Itaru.
Dear NEST Users & Developers!
I would like to invite you to our next fortnightly Open NEST Developer
Video Conference today
Monday 12 October, 11.30-12.30 CEST (UTC+2).
In the Project team round, a contact person of each team will give a
short statement summarizing ongoing work in the team and cross-cutting
points that need discussion among the teams. The remainder of the
meeting we would go into a more in-depth discussion of topics that came
up on the mailing list or that are suggested by the teams.
Agenda
Welcome
Review of NEST User Mailing List
Project team round
In-depth discussion
* HBP CodeJam #11
<https://www.humanbrainproject.eu/en/education/participatecollaborate/infras…>
* Extension Module System
<https://github.com/nest/nest-simulator/projects/22>
* Issue #1773 <https://github.com/nest/nest-simulator/issues/1773>:
wrapper around |Prepare| and |Run|
The agenda for this meeting is also available online, see
https://github.com/nest/nest-simulator/wiki/2020-10-12-Open-NEST-Developer-…
Looking forward to seeing you soon!
best,
Dennis Terhorst
------------------
Log-in information
------------------
We use a virtual conference room provided by DFN (Deutsches Forschungsnetz).
You can use the web client to connect. We however encourage everyone to
use a headset for better audio quality or even a proper video
conferencing system (see below) or software when available.
Web client
* Visit https://conf.dfn.de/webapp/conference/97938800
* Enter your name and allow your browser to use camera and microphone
* The conference does not need a PIN to join, just click join and you're in.
In case you see a dfnconf logo and the phrase "Auf den
Meetingveranstalter warten", just be patient, the meeting host needs to
join first (a voice will tell you).
VC system/software
How to log in with a video conferencing system, depends on you VC system
or software.
- Using the H.323 protocol (eg Polycom): vc.dfn.net##97938800 or
194.95.240.2##97938800
- Using the SIP protocol:97938800@vc.dfn.de
- By telephone: +49-30-200-97938800
For those who do not have a video conference system or suitable
software, Polycom provides a pretty good free app for iOS and Android,
so you can join from your tablet (Polycom RealPresence Mobile, available
from AppStore/PlayStore). Note that firewalls may interfere with
videoconferencing in various and sometimes confusing ways.
For more technical information on logging in from various VC systems,
please see
http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4
Dear NEST Users & Developers!
I would like to invite you to our next fortnightly Open NEST Developer
Video Conference today
Monday 28 September, 11.30-12.30 CEST (UTC+2).
In the Project team round, a contact person of each team will give a
short statement summarizing ongoing work in the team and cross-cutting
points that need discussion among the teams. The remainder of the
meeting we would go into a more in-depth discussion of topics that came
up on the mailing list or that are suggested by the teams.
Agenda
Welcome
Review of NEST User Mailing List
Project team round
In-depth discussion
Benchmarking setups for CoSim and the NRP-NEST coupling.
Special guests will be Kim Sontheimer and Cristian Jimenez-Romero of the
SimLab Neuroscience
The agenda for this meeting is also available online, see
https://github.com/nest/nest-simulator/wiki/2020-09-28-Open-NEST-Developer-…
Looking forward to seeing you soon!
best,
Dennis Terhorst
------------------
Log-in information
------------------
We use a virtual conference room provided by DFN (Deutsches Forschungsnetz).
You can use the web client to connect. We however encourage everyone to
use a headset for better audio quality or even a proper video
conferencing system (see below) or software when available.
Web client
* Visit https://conf.dfn.de/webapp/conference/97938800
* Enter your name and allow your browser to use camera and microphone
* The conference does not need a PIN to join, just click join and you're in.
In case you see a dfnconf logo and the phrase "Auf den
Meetingveranstalter warten", just be patient, the meeting host needs to
join first (a voice will tell you).
VC system/software
How to log in with a video conferencing system, depends on you VC system
or software.
- Using the H.323 protocol (eg Polycom): vc.dfn.net##97938800 or
194.95.240.2##97938800
- Using the SIP protocol:97938800@vc.dfn.de
- By telephone: +49-30-200-97938800
For those who do not have a video conference system or suitable
software, Polycom provides a pretty good free app for iOS and Android,
so you can join from your tablet (Polycom RealPresence Mobile, available
from AppStore/PlayStore). Note that firewalls may interfere with
videoconferencing in various and sometimes confusing ways.
For more technical information on logging in from various VC systems,
please see
http://vcc.zih.tu-dresden.de/index.php?linkid=1.1.3.4