Owen, What leads you to suspect that the CPU I/O noise is random? The noise generated by such comes from a chipset that operates at a given frequency, which is powered by an AC source running at another frequency, filtered through a power supply with capacitors, resistors, etc. with their own set of time constant responses...
--Doug On Sat, Apr 25, 2009 at 6:02 PM, Marcus G. Daniels <mar...@snoutfarm.com>wrote: > Owen Densmore wrote: > >> Most of computing does not need to be exact .. a slight "error" generally >> is not terrible and for imaging, audio, and so on simply is not observable >> by a human. >> > And if what you need is a *lot* of random numbers [1], why do dozens of > cycles of exact arithmetic and memory lookups to make pseudo random numbers, > if you could instead just read a vector of physical noise values from a CPU > I/O port in a single cycle? > > [1] http://en.wikipedia.org/wiki/Monte_Carlo_method > > > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > lectures, archives, unsubscribe, maps at http://www.friam.org > -- Doug Roberts drobe...@rti.org d...@parrot-farm.net 505-455-7333 - Office 505-670-8195 - Cell
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
