I've uploaded Ron's slides here: http://numenta.org/resources/blog/Swarming_in_NuPIC.pdf --------- Matt Taylor OS Community Flag-Bearer Numenta
On Mon, Sep 9, 2013 at 4:33 PM, Ron Marianetti <[email protected]> wrote: > Hi Stewart, > > Yes, the database could be a SPOF, but if you need fault tolerance, there is > a way to configure MySQL to have a failover server that will take over if the > primary one fails. > > Running all the workers on a single machine it's all moot though - if that > machine fails your SOL :). Swarming was designed for cluster use originally, > so having no central controller and being able to leverage a MySQL server > with a backup were helpful in that context. > > And yes, swarming is best run on a powerful machine or cluster of machines. > You can then take the best model found from swarming and run it on a smaller > system. > > > On Sep 9, 2013, at 2:58 PM, stewart mackenzie <[email protected]> > wrote: > >> Apologies, I forgot languages like python use shared state concurrency. >> Multiple collaborating agents is a cinch given the right language features. >> >> This approach introduces a single point of failure, the database. >> >> Sensor networks consisting of small microchip type devices are too >> tiny to run MySQL. >> Hypersearch will need to be made light weight if it's to get out into >> sensor networks. >> I suppose target deployment are data warehouse/high performance >> cluster style setups. >> >> Nevermind, given the tradeoffs it's a sensible decision, and it works. >> >> Thanks for clearing that up for me. >> >>> The advantage of using MySQL is that the co-operating workers have a joint >>> noticeboard. MySQL is specifically designed to handle issues like race >>> conditions and multiple collaborating agents. It's also ubiquitous and >>> easily installed, it's practically an OS function. >> >> _______________________________________________ >> nupic mailing list >> [email protected] >> http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org > > > _______________________________________________ > nupic mailing list > [email protected] > http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org _______________________________________________ nupic mailing list [email protected] http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org
