Search found 5 matches

by bcumming
Wed Jun 20, 2018 8:07 am
Forum: Adding new mechanisms and functions to NEURON
Topic: Making a timer dummy cell for benchmarking
Replies: 3
Views: 1985

Re: Making a timer dummy cell for benchmarking

Hi Michael. With your advice, I made the following point process: NEURON { POINT_PROCESS bench RANGE first, frequency, rate } PARAMETER { frequency = 100 (Hz) rate = 1 : 1-> realtime, 0.1 -> 10x faster than realtime first = 0 (ms) } VERBATIM #include <time.h> ENDVERBATIM ASSIGNED { spike_interval } ...
by bcumming
Fri Jun 08, 2018 8:52 am
Forum: Adding new mechanisms and functions to NEURON
Topic: Making a timer dummy cell for benchmarking
Replies: 3
Views: 1985

Re: Making a timer dummy cell for benchmarking

Thanks for the feedback.

Because there are no numeric stability concerns, could we force the cell to take large dt steps, which would minimise the impact of overheads that are outside the wait call?
by bcumming
Thu Jun 07, 2018 10:02 am
Forum: Adding new mechanisms and functions to NEURON
Topic: Making a timer dummy cell for benchmarking
Replies: 3
Views: 1985

Making a timer dummy cell for benchmarking

I would like to make a special "artificial cell" for benchmarking the spike/event delivery subsystems in simulators. The artificial cell takes two parameters: 1. spike frequency: used to generate a poisson sequence of spikes 2. integration speed: describes how quickly a cell is updated relative to r...
by bcumming
Tue Nov 14, 2017 4:30 am
Forum: Other questions
Topic: Values for Gas and Faraday constants
Replies: 4
Views: 14095

Re: Values for Gas and Faraday constants

Hello Michael, I did some more digging on the NIST site, and the values of these constants has changed over time. R F 2014 8.3144598 96485.33289 2010 8.3144621 96485.3365 2002 8.314472 96485.3383 1998 8.314472 96485.3415 1986 8.314510 96485.309 1973 8.31441 96486.95 The value used in NEURON for F ha...
by bcumming
Wed Nov 08, 2017 3:24 am
Forum: Other questions
Topic: Values for Gas and Faraday constants
Replies: 4
Views: 14095

Values for Gas and Faraday constants

I have a question about the values used for the gas constant R and Faraday's constant in NEURON. Specifically, NEURON uses what appear to be incorrect values: -------------------------------- R Faraday ------------------------------------------- correct 8.3144598(48) 96485.33289(59) neuron 8.3134 96...