www.neuron.yale.edu

It works, thank you so much.

I tried to introduce "bbcore_write" and "bbcore_read" from netstim.mod into our vecstim.mod, but got some errors when compiling the mechanism file with CoreNEURON. The following shows modified code, did I do anything wrong? Thanks! NEURON { THREADSAFE ARTIFICIAL_CELL VecStim BBCO...

Dear all I have some problems while using import3D_swc_read() to read swc file. I notice that there are more than 9000 3D points in swc file, but when I load this swc file into NEURON, it shows that this model contains only 1974 segments. I guess some 3D points in swc are merged when I use import3D_...

Thank you so much!

Thank you, I'm more clear now. I see that in "nrn_fixed_step_thread" function, mainly three steps are done: 1) setup_tree_matrix 2) solve the tree matrix 3) update. So step 1) is to setup the matrix ( I - dt * f ( y (t+dt),t)), step 2) is to get the inverse of matrix, is that true? If it's...

Thank you for replying. I watched the source code of NEURON, and I found that when NEURON computes the ion channels (e.g. hh.c), there are two statements: NODERHS(_nd) -= _rhs; NODED(_nd) += _g; so I think the matrix represent the conductance and rhs represent current. When current is computed by i=...

Dear all I am reading the NEURON book and try to understand the numerical methods in NEURON. In my understanding, when NEURON integrate one step, it first setup a matrix GV=I, where G is the Hines matrix representing the conductance, I is the current vector (including axial current, injected current...

We have optimized the previous single GPU version of CoreNEURON and extended it to multi-GPU version, which can be downloaded at https://github.com/pkuzyc/Multi-GPU-CoreNeuron . The current version can work on single GPU server or GPU cluster. We have tested the sample model enclosed in the original...

Hello, is coreNeuron able to use two or more GPUs? I have tried to use two threads to run ringtest and it generate two network files after nrnbbcore_write(). However, when I use two threads to run this model by coreNeuron, only one GPU is used. Could you please tell me is coreNeuron able to use mult...

I built a stimulus model by NMODL and I want to run simulation on coreNeuron. It run well on CPU but cannot run on GPU. I found the reason is that I defined all the variables in PARAMETER block. After I move two variables into ASSIGNED block, it can run on GPU. Could you please tell me why it happen...

I downloaded from https://github.com/nrnhines/nrn

The Neuron I use is downloaded from github, and the version is 7.5, not 7.4. I compile it from source. It shows the version information like that because the Neuron on github doesn't have the file "nrnversion.h", I copied nrnversion.h from an already installed neuron.

I installed the neruon from github, the python version is 2.7.12. When I tried to run ringtest.py, there arised some errors. When import neuron, it prints: .libs/libnrnmech.so: undefined symbol: hoc_register_dparam_semantics When I run "python ringtest.py", it prints: AttributeError 'hoc.H...

Thank you!

Thank you so much, I can successfully use coreNeuron on my machine with your patient help. I have another question. Could you please tell me how can I set the stim for a cell when I do simulation on coreNeuron?