Part I: Parallel Computer System Architectures 目 言号 房 喜到昌目首 8 39 8 es 3a5 NHPCC(Hefei)·USTC· CHINA glchen @ustc.ed.clNHPCC(Hefei) •USTC •CHINA glchen@ustc.edu.cn Part I : Parallel Computer System Architectures 1 -13