The nVidia graphics card coprocessors with the closed-but-zero-cost
CUDA programming language are a cheap way to buy a few teraflops
of single precision array computation.  I am considering some of 
those for some nanoparticle surface bombardment calculations, and
also for some phased array antenna calculations.  The learning
curve looks steep, though.

Is anyone on this list familiar with these?  Are there repositories
of open source example tools, calculations, discussion lists, etc? 
And (hope against hope) is there an open source replacement for
CUDA out there?  Other suggestions to lower the learning curve?

Keith

-- 
Keith Lofstrom          [log in to unmask]         Voice (503)-520-1993
KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon"
Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs