We analysed the traditional automatic parallelization technology , including dependency analysis theory , program transformation technology , parallel scheme and the optimization of related synchronization and communication etc , which are the theoretical basis of the whole article . cfd computing features , especially the features of explicit difference computing , have also been further ananlysed . we also summarized drawbacks of traditional automatic parallelization technology used in cfd : small parallel granularity , difficulty in attaining global identical data partition , and difficulty in attaining high parallel efficiency on distributed memory system 本文討論、分析、總結(jié)了通用的自動并行化技術(shù):相關(guān)性分析理論、程序變換技術(shù)、并行模式以及同步通信與優(yōu)化問題等等,它們是本文研究工作的理論基礎(chǔ);針對研究對象,深入分析了cfd計(jì)算的特點(diǎn),特別是顯式差分計(jì)算的特點(diǎn);并歸納出傳統(tǒng)的自動并行化技術(shù)在cfd應(yīng)用中存在的問題:并行粒度小、難以獲得全局統(tǒng)一的數(shù)據(jù)劃分方式,對于分布存儲結(jié)構(gòu)的并行機(jī)難以獲得高效率。