Advertisement
Published in:
2007 | OriginalPaper | Chapter
Parallel Incomplete Factorization of 3D NC FEM Elliptic Systems
Author : Yavor Vutov
Published in: Numerical Methods and Applications
Publisher: Springer Berlin Heidelberg
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
A new parallel preconditioner for solution of large scale second order 3D FEM elliptic systems is presented. The problem is discretized by rotated trilinear non-conforming finite elements. The algorithm is based on application of modified incomplete Cholesky factorisation (MIC(0)) to a locally constructed modification
B
of the original stiffness matrix
A
. The matrix
B
preserves the robustness of the point-wise factorisation and has a special block structure allowing parallelization. The performed numerical tests are in agreement with the derived estimates for the parallel times.