With the rapid development of high - speed networks and the design of software for network parallel computing such as pvm , mpi , express linda and p4 , the merits of network parallel computing , such as small costs , quick returns , strong flexility and high ratio of performance to costs , are more outstanding , making the network parallel computing be favored by more and more universities and research institutes both at home and abroad and become one of the important branches of parallel and distributed computing 高速信息網(wǎng)絡(luò)的飛速發(fā)展以及網(wǎng)絡(luò)并行計(jì)算支撐軟件如pvm 、 mpi 、 express 、 linda , p4等的出現(xiàn),使得網(wǎng)絡(luò)并行計(jì)算的投資少、見效快、靈活性強(qiáng)、性能價(jià)格比高等諸多優(yōu)點(diǎn)顯得更加突出,受到國(guó)內(nèi)外越來越多的大學(xué)和科研單位的青睞,已成為并行計(jì)算和分布式計(jì)算技術(shù)的重要發(fā)展方向。