Improvement of the LogGP and α+nβ Models in Collective Communications
Yucheng Li · Jisuanji gongcheng · 2005
According to the most important problem of the current high performance computer that can not achieve the satisfied performance,collective communications as the most important part of the large-scale scientific computing and engineering applications are selected as the Research object.The relationship between LogGP model and α+nβ model is established through analyzing the collective communication Reduce theoretically and experimentally.The LogGP model and α+nβ model are improved when characterizing the time complexity of the collective communications.These are contributed to the studying and designing of the collective communications.