Search found 155 matches

by ramcdougal
Mon Mar 30, 2009 2:15 pm
Forum: Parallel NEURON
Topic: multisplit checkbox preconditions
Replies: 4
Views: 2333

Re: multisplit checkbox preconditions

mkthreadsafe reports no problems: $ /usr/local/nrn/x86_64/bin/mkthreadsafe diff.mod What assumptions are made by the code that executes when the multisplit checkbox is selected? Thanks. A side note: For those who installed NEURON on Ubuntu like I did (converted the rpm to deb via alien), there are t...
by ramcdougal
Sun Mar 29, 2009 3:10 pm
Forum: Parallel NEURON
Topic: multisplit checkbox preconditions
Replies: 4
Views: 2333

Re: multisplit checkbox preconditions

I can now give a simple example of how I'm getting a "segmentation violation." Suppose we have a simple mod file implementing diffusion: NEURON { SUFFIX diff } BREAKPOINT { SOLVE state METHOD sparse } STATE { z (1) } KINETIC state { COMPARTMENT 1 {z} LONGITUDINAL_DIFFUSION 1 {z} ~z << (0) } (No, I w...
by ramcdougal
Sun Mar 29, 2009 12:34 am
Forum: Parallel NEURON
Topic: multisplit checkbox preconditions
Replies: 4
Views: 2333

multisplit checkbox preconditions

I'm running Neuron 7.0 (281:80827e3cd201) and have been experimenting with multisplit. What preconditions are necessary before checking the "multisplit" box in the parallel computing toolbox so that the simple act of checking the box does not result in an error? For example, I experimented with the ...
by ramcdougal
Fri Nov 28, 2008 4:30 pm
Forum: Adding new mechanisms and functions to NEURON
Topic: longitudinal_diffusion caching?
Replies: 2
Views: 1732

Re: longitudinal_diffusion caching?

Upon further reflection, I realize that I could use delete_section to remove the sections and start over from scratch, but I would prefer to preserve all the geometry, biophysics, etc...
by ramcdougal
Fri Nov 28, 2008 4:01 pm
Forum: Adding new mechanisms and functions to NEURON
Topic: longitudinal_diffusion caching?
Replies: 2
Views: 1732

longitudinal_diffusion caching?

I was experimenting with longitudinal_diffusion and the results were not quite as I expected: I'd create a section of length 10, put some stuff on the left side, and then it would diffuse across a certain rate. If now I change the length of the section and rerun it, my substance diffuses across the ...