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Dear Ted, Thank you very much for the answer. Another problem I have is with pc.gid2cell. I have gone through the reference you quoted and found that for pc.gid2cell to work, it needs connect2target function. If I don't have connect2target function in my cell template, it is giving me this error: 1 ...

Hi, I have a very basic question on splitting a group of cells over 'n' processes on a single machine. I have 4000 cells which were distributed over 3 processes. I have used the usual syntax "for (i=pc.id; i<$1; i+=pc.nhost)". And the gid is assigned with "pc.setgid2node(i, pc.id)&quo...

Hi, I wanted to run a neuron simulation from MATLAB, which I did with the command "!nrngui <file.hoc>". Later I wanted to calculate spikes with APCount procedure in NEURON and return it to MATLAB variable for further computation. One way is to create file, store value into it and open it i...

Hi, Is there a way to know how many cells each node has received through print command? Though it distributes via round robin, I am interested in knowing through print command. And also when I try to print the positions of a large group of cells distributed through round robin, I am only able to see...

Hi, When I try to compile neuron source code (nrn-7.3 and iv-18) with the following options: ./configure --prefix=`pwd` --with-nrnpython=/usr/bin/python --with-iv=../iv --with-paranrn make It gives me the following errors: /usr/bin/ld: /usr/local/lib/libmpich.a(allreduce.o): relocation R_X86_64_32 a...

Hi, I have a spikegenerator and a dummy section. I wanted to play spikegenerator values into dummy section voltage. Should it be done in the following way? vect.play(&dummy.v(0.5), tvec) where vect contains recorded values of spikegenerator run for 100 msec. tvec is the vector contains 't' value...

Dear mctavish,

Thank you very much for your detailed explanation illustrated with examples. It helped me a lot in understanding the usage of "cell=self". Thank you once again.

Hi,

If I use,

self.hillock = [h.Section(cell=self)]

In the above syntax, why should we use "cell=self"? What is the importance of that? Thank you.

Dear mctavish,

Thank you very much for the in detail explanation about splitbit assignment in your model.

Hi,

In https://senselab.med.yale.edu/modeldb/S ... \split.hoc, what does splitbit refer to? How is it calculated? I didn't understand on what basis they are assigning splitbit values.

Can anyone kindly let me know. Thank you.

Dear Ted,

Thank you very much for the reply. Please kindly let me know the corrections in the file. Thank you.

Hi, When I am trying to test a network with multisplit method described in Hines 2008 paper, the following error results. all not a public member of GrC 0 /mirror/neuron/nrn-7.3/x86_64/bin/nrniv: GrC all 0 in init1.hoc near line 95 0 model() ^ 0 CellBalanceInfo[0].msdiv(GrC[0], SectionRef[8], 100, P...

Dear Ted,

Thank you very much for your quick reply. I have gone through the examples which you posted here from modeldb which were very useful in understanding. Thank you.

Hi, I have come across pc.source_var and pc.target_var functions which were meant to be used for synaptic communication and gap junctions. And if I wanted to use them for synaptic communication, how can I use them? Considering with an example, I have AMPA synapse connected to Multi Compatment Granul...

Hi, I recently tried to parallelize multi compartmental granule cell model (Diwakar, 2009). I followed similar approach described in "Translating network models to parallel hardware" and found that I couldn't get synaptic input to my model through spikegenerators. The model has AMPA, NMDA ...