Search found 10 matches

by bkaplan
Thu Jul 12, 2012 11:11 am
Forum: Parallel NEURON
Topic: Model compilation fails on a Cray XE6 system
Replies: 3
Views: 3860

Re: Model compilation fails on a Cray XE6 system

Thanks a million!
Renaming sinf solved the problem.
You saved the day!
Best, Bernhard
by bkaplan
Tue Jul 10, 2012 6:18 am
Forum: Parallel NEURON
Topic: Model compilation fails on a Cray XE6 system
Replies: 3
Views: 3860

Model compilation fails on a Cray XE6 system

Hi, I have problems compiling a model when a specific mod file is used in a parallel environment. The modfile is 'lcafixed.mod' from ModelDB accession number 2730 http://senselab.med.yale.edu/modeldb/ShowModel.asp?model=2730&file=\bulbNet\lcafixed.mod and compiles on my local parallel environment (U...
by bkaplan
Thu Aug 04, 2011 5:47 am
Forum: Parallel NEURON
Topic: NetCon detection threshold
Replies: 10
Views: 7125

Re: NetCon detection threshold

Hi again, I think I solved the issue, but still need to figure out where the problem in my previous code is... So here is some code which works as it should, maybe you can still comment on the code if this is the way it is supposed to be done... I think it is important to note that the threshold for...
by bkaplan
Wed Aug 03, 2011 12:28 pm
Forum: Parallel NEURON
Topic: NetCon detection threshold
Replies: 10
Views: 7125

Re: NetCon detection threshold

Hi, sorry for the confusion, but I just figured out that I forgot to run with the -mpi flag, hence this does not happen in a parallel context. Anyway my problem is now more fundamental, since I couldn't figure out how to implement a dendrodendritic communication between two cells when using -mpi. My...
by bkaplan
Tue Aug 02, 2011 1:35 pm
Forum: Parallel NEURON
Topic: NetCon detection threshold
Replies: 10
Views: 7125

Re: NetCon detection threshold

Hi, I've just installed the latest version from the repository (NEURON -- VERSION 7.2 (527:a38b8d137de6) 2011-07-26), but the problem persists: event detection / transmission depends on the NetCon's threshold (defined in the source cell template) and event transmission does not happen reliably. Anot...
by bkaplan
Wed Jul 20, 2011 4:01 am
Forum: Parallel NEURON
Topic: NetCon detection threshold
Replies: 10
Views: 7125

Re: NetCon detection threshold

First line of nrniv gives: NEURON -- Release 7.1 (359:7f113b76a94b) 2009-10-26,
my OS: Ubuntu 10.04 64bit Linux kernel 2.6.32-33
by bkaplan
Tue Jul 19, 2011 11:01 am
Forum: Parallel NEURON
Topic: NetCon detection threshold
Replies: 10
Views: 7125

Re: NetCon detection threshold

Hi, independent of the differences between the serial and the parallel implementations (which might well be there...) it is important to note, that the membrane potential in the source compartment clearly crosses 0 mV in all of the three above mentioned cases and this happens two times within one ru...
by bkaplan
Mon Jul 18, 2011 10:12 am
Forum: Parallel NEURON
Topic: NetCon detection threshold
Replies: 10
Views: 7125

NetCon detection threshold

Hello, I'm working on a model of dendro-dendritic interaction with the following code. From the cell template which acts as a source: // this happens in the dendritic compartment: // append a NetCon object to a public List, with an empty object 'nil' as target, and thresh_dd as threshold for signal ...
by bkaplan
Tue Nov 09, 2010 5:46 am
Forum: NEURON + Python
Topic: Insert a spike train into a cell
Replies: 0
Views: 1371

Insert a spike train into a cell

Hello, I want to insert a spike train into a cell via a synapse, e.g. ExpSyn. How do I do that in Python? I could not manage to translate my hoc code which does exactly that, so I wondered if there is maybe another way. The hoc code which works makes use of the FInitializeHandler which then calls a ...
by bkaplan
Thu Apr 22, 2010 5:01 am
Forum: Parallel NEURON
Topic: Error with parallel network models
Replies: 1
Views: 3259

Error with parallel network models

Hello, I have a problem setting up a network in a parallel environment. The problem is that I different errors for different ways of execution, so I don't know what's wrong. when I use stdinit() before the pnm.psolve(t_sim) call I get the following: /nrn/i686/bin/nrniv: table not specified in hoc_fu...