Earlier in the month I fleshed out a spatially arranged subdivision method I learned from Matteo Frigo but didn’t have time to actually run it and compare against my baselines. And in the meantime my test machine has been regrooved into a Windows 7 box, so my first order of business is to retest my baselines. I reran the serial algorithm a few times and averaged the results. While the raw numbers (using the same compiler and machine but j
Last time, after struggling with different lock configurations to reduce synchronization overhead managing the interactions of n-squared bodies, I changed perspectives on the problem by spatially representing the interactions between all the bodies and (re-)discovering in that view a means to group the interactions so that independent threads could work together without having to worry about locking the data.
Hrrrumph! I’m not sure I’m cut out for this blogging business, which I hear now is becoming passé anyway. Twitter has become all the rage. I’m too much a Luddite to even conceive of a meaningful technical discussion in blots of 140 characters or less. TwitterTech? Nah!