Hi, On Friday 05 May 2006 03:24, Bill Broadley wrote: > On Thu, May 04, 2006 at 01:09:07PM -0700, Jim Lux wrote: > > Ran across an interesting device: > > http://physx.ageia.com/ > > > > It's some sort of coprocessor (marketed to the gaming community) that > > looks like its designed to efficiently numerically integrate equations of > > motion. Clever idea. Not much substantive info in the whitepaper. > > http://physx.ageia.com/whitepaper_avanced_gaming_physics.pdf > > Anyone know if it can handle double precision floating point?
could be a nice competition to clearspeed or nec machines (md engine or something like this). It can calculate: - Density, friction and bounciness - Newtonian dynamics - Joints and springs - Small particle dynamics - Cloth - Gravity So all things around for speeding up molecular dynamics simulations: - vibrational forces (springs) - rotational forces (joints) - nonbonded forces (similar to gravity) - update position and velocity (dynamics) - update the neighbour list For me it is not clear, if i can get the results back out of the graphics card. Also there are some ongoning developments from Havok FX (250GFlops/s http://www.havok.com/ ) and something called ATI: DPP-Layer (374GFLOPS/s) The Ageia PhysX claimes to reach 20 GFLOPS/s. Greetings, Florian -- ------------------------------------------------------------------------------- Florian Haberl Computer-Chemie-Centrum Universitaet Erlangen/ Nuernberg Naegelsbachstr 25 D-91052 Erlangen Mailto: florian.haberl AT chemie.uni-erlangen.de -------------------------------------------------------------------------------
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