Campuses:

Semiconductor

Monday, January 10, 2011 - 9:30am - 10:30am
David Keyes (Columbia University)
Sustained floating-point computation rates on real applications, as
tracked by the ACM Gordon Bell Prize, increased by three orders of
magnitude from 1988 (1 Gigaflop/s) to 1998 (1 Teraflop/s), and by
another three orders of magnitude to 2008 (1 Petaflop/s). Computer
engineering provided only a couple of orders of magnitude of
improvement for individual cores over that period; the remaining
factor came from concurrency, which is approaching one million-fold.

Algorithmic improvements contributed meanwhile to making each flop
Saturday, November 1, 2008 - 12:00pm - 1:00pm
Oleg Prezhdo (University of Washington)
Harvesting and applications of solar energy requires an understanding of the dynamical response of novel materials on the nanometer scale. We have developed state-of-the-art non-adiabatic molecular dynamics techniques and implemented them within time-dependent density functional theory in order to model the ultrafast photoinduced processes in these materials at the atomistic level, and in real time.
Saturday, November 1, 2008 - 10:30am - 11:30am
Arthur Nozik (Department of Energy)
In order to utilize solar power for the production of electricity and fuel on a massive scale, it will be necessary to develop solar photon conversion systems that have an appropriate combination of high efficiency (delivered watts/m2) and low capital cost ($/m2) to produce solar power that is competitive with coal.
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