Junichiro Makino Eiichiro Kokubo Toshiyuki Fukushige Performance evaluation and tuning of GRAPE-6 - towards 40 "real" Tflops. 2 2003 conf/sc/2003 SC http://doi.acm.org/10.1145/1048935.1050153 db/conf/sc/sc2003.html#MakinoKF03