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《Computer Engineering and Design》 2010-01
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Index reduction algorithm analysis of algebraic differential equation form Modelica software

YANG Hai-jun1,2(1.Key Lab of Computer Science,Institute of Software,Chinese Academy of Sciences,Beijing 100190,China;2.Graduate University,Chinese Academy of Sciences,Beijing 100049,China)  
Modelica modeling software probably produce high index DAE,because existing solver can’t solve high index DAE directly,Modelica modeling software need to do index reduction for DAE,in order to improve performance of modeling software,aiming at existing index reduction algorithms,theory analysis and experiment comparison is carried out,specially,time complexity of weighted bipartite algorithm is given.Theory analysis and experimental results show that weighted bipartite algorithm have better performance than Pantelides algorithm,so it is possible to improve performance using bipartite algorithm instead of Pantelides algorithm in Modelica software in future.
【CateGory Index】: O175
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