Friday, March 02, 2007
An overview of the Blue Brain project
http://www.hss.caltech.edu/~steve/markham.pdf (Feb 2006)
Blue Brain is a project to build a simulation of the entire brain by first modeling the columns, then using the column module to build the entire thing.
Each column takes about 10,000 neurons, and they are estimating that an accurate simulation of the column will be achieved within a year from now.
Currently, Blue Brain can simulate about 100,000,000 simple neurons. But what's the number of synapses on that? The number of synapses adds several orders of magnitude of complexity to any simulation.
http://www.hss.caltech.edu/~steve/markham.pdf (Feb 2006)
Blue Brain is a project to build a simulation of the entire brain by first modeling the columns, then using the column module to build the entire thing.
Each column takes about 10,000 neurons, and they are estimating that an accurate simulation of the column will be achieved within a year from now.
Currently, Blue Brain can simulate about 100,000,000 simple neurons. But what's the number of synapses on that? The number of synapses adds several orders of magnitude of complexity to any simulation.
Dominique Martinez
from the Cortex group at Lorrain labs (http://cortex.loria.fr/)
Simulated integrate-and-fire neurons on linux (1.86ghz, what cpu?). Achieved 1,000,000 firings/sec, or 20 simulated minutes per 1 sec on a N=100 network. This is pretty good, but only possible for integrateable neurons. The paper is here:
http://www.loria.fr/~dmartine/papers/ArnaudHanaDom.pdf
I wonder if using a 2D lookup table for Izhikevich neurons would allow looking several steps ahead.
from the Cortex group at Lorrain labs (http://cortex.loria.fr/)
Simulated integrate-and-fire neurons on linux (1.86ghz, what cpu?). Achieved 1,000,000 firings/sec, or 20 simulated minutes per 1 sec on a N=100 network. This is pretty good, but only possible for integrateable neurons. The paper is here:
http://www.loria.fr/~dmartine/papers/ArnaudHanaDom.pdf
I wonder if using a 2D lookup table for Izhikevich neurons would allow looking several steps ahead.
