Title :
Parallel Computing of Large Eigenvalue Problems for Engineering Structures
Author :
Fan, Xuanhua ; Wu, Rui-an ; Chen, Pu ; Ning, Zuogui ; Li, Jian
Author_Institution :
Dept. of Mech. & Aerosp. Eng., Peking Univ., Beijing, China
Abstract :
Aimed at large, sparse eigenvalue problems in modal analysis of engineering structures, some predominant algorithms and their corresponding software packages are summarized. A parallel solving system was constructed via integrating these software packages into the finite-element parallel computing framework-PANDA. The finite element model (FEM) of engineering structures was built in pre-processing commercial software-MSC. Patran. Based on the interface between PANDA and MSC. Patran, the model information was translated in PANDA to generate stiffness and mass matrices in a parallel way. Utilizing these matrices, a large-scale parallel computing of eigenvalues was carried out via calling software packages in PANDA. The numerical results show that PANDA frame is competent for carrying out large-scale parallel computing of eigenvalue problems; in virtue of supercomputer, the computing scale attains millions of freedom degrees; and the parallel efficiency is favorable.
Keywords :
eigenvalues and eigenfunctions; finite element analysis; parallel processing; software packages; MSC.Patran; PANDA; engineering structures; finite element model; finite element parallel computing framework; modal analysis; parallel solving system; software packages; sparse eigenvalue problem; supercomputer; Computational modeling; Eigenvalues and eigenfunctions; Finite element methods; Matrix decomposition; Parallel processing; Software; Sparse matrices; engineering structure; large-scale eigenvalue problems; modal analysis; parallel computing;
Conference_Titel :
Future Computer Sciences and Application (ICFCSA), 2011 International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4577-0317-1
DOI :
10.1109/ICFCSA.2011.16
