Part I: Parallel Computer Memory Access Models Non-Uniform Memory Access(NUMA) SM is collection of all LM of processors, i. e shared local memories The access time varies with location of memory words shorter to access processor own LM; longer to access remote LM of other processor Shared local memory model is the following: LM1 LM connection Network LM n NHPCC(Hefei)·USTC· CHINA glchen @ustc.ed.cl I-15NHPCC(Hefei) •USTC •CHINA glchen@ustc.edu.cn 1 -15 Part I : Parallel Computer Memory Access Models