timothy barth nasa ames research center nas division moffett fieldca usa barth@nas nasa gov michael griebel institut fur numerische simulation der universitat bonn wegelerstr bonngermany griebel@ins uni-bonn de risto nieminen department of applied physics aalto university school of science and technology aaltofinland risto nieminen@aalto fi dirk roose department of computer science katholieke universiteit leuven celestijnenlaan leuven-heverleebelgium dirk roose@cs kuleuven be david keyes mathematical and computer sciences and engineering king abdullah university of science and technology box jeddah saudi arabia david keyes@kaust edu sa tamar schlick department of chemistry and courant institute of mathematical sciences new york university mercer street new yorkny usa schlick@nyu edu and editor for computational science and engineering at springermartin peters springer-verlag mathematics editorial iv tiergartenstrasse heidelberggermany martin peters@springer com department of applied physics and applied mathematics columbia university th street new yorkny usa kd @columbia edu