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High Performance Hybrid Direct-Iterative Solution Method for Large Scale Structural Analysis Problems
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 Title & Authors
High Performance Hybrid Direct-Iterative Solution Method for Large Scale Structural Analysis Problems
Kim, Min-Ki; Kim, Seung-Jo;
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High performance direct-iterative hybrid linear solver for large scale finite element problem is developed. Direct solution method is robust but difficult to parallelize, whereas iterative solution method is opposite for direct method. Therefore, combining two solution methods is desired to get both high performance parallel efficiency and numerical robustness for large scale structural analysis problems. Hybrid method mentioned in this paper is based on FETI-DP (Finite Element Tearing and Interconnecting-Dual Primal method) which has good parallel scalability and efficiency. It is suitable for fourth and second order finite element elliptic problems including structural analysis problems. We are using the hybrid concept of theses two solution method categories, combining the multifrontal solver into FETI-DP based iterative solver. Hybrid solver is implemented for our general structural analysis code, IPSAP.
hybrid solver;domain decomposition;FETI-DP;parallel computing;large scale structural analysis;
 Cited by
다중프론트 해법의 공유메모리 병렬화,김민기;김정호;박찬익;김승조;

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