針對基于多計算機機群構(gòu)成的網(wǎng)格的大規(guī)模并行計算的需要，對多級分組通信模型的單一機群分組通信進(jìn)行了研究。探討了在單一機群內(nèi)的主動節(jié)點、被動節(jié)點個數(shù)和各個計算節(jié)點的能力以及機群網(wǎng)絡(luò)的帶寬之間的形式化關(guān)系，優(yōu)化了通信結(jié)構(gòu),描述了基于能力優(yōu)化機制的通信模型。理論和試驗表明，該模型充分利用了機群的計算節(jié)點能力、網(wǎng)絡(luò)通信能力。該模型適合基于網(wǎng)格的并行計算。
關(guān)鍵字：數(shù)據(jù)網(wǎng)格；分組通信；并行計算
Abstract: For the need of large scale parallel computing based on Data Grid that is composed of the multi-clusters, the single cluster grouping communication model for multi-level grouping communication has been researched. The formalized relations among the numbers of active computing nodes and passive computing nodes, the computation capacity of individual computing nodes and the network’s bandwidths within a single cluster have been discussed. The grouping communication model has been described. Both theory and
experiment results show that this model have fully utilized the communication and computation capacity of computing nodes and network. It can be fit for large scale parallel computing in grid.
Key words: data grid; grouping communication; parallel computing