Project Acronym: ScaleSciCompTitle: Scale Scientific ComputationsAffiliation: democritus university of thracePi: George GravvanisResearch Field: mathematics and computer sciences
Parallel multi-projection preconditioned methods based on semi-aggregation techniques
by Byron E. Moutafis, Christos K. Filelis-Papadopoulos and George A. Gravvanis
Abstract:
Abstract A parallel preconditioned iterative method in conjunction with an additive domain decomposition method based on semi-aggregation techniques for general sparse linear systems is presented. The proposed preconditioning scheme constitutes an algebraic non-overlapping domain decomposition method in fine-coarse (semi-coarse) subdomains, which is based only on the graph of the corresponding coefficient matrix and aggregation techniques. The proposed scheme is a hybrid algorithm designed for distributed systems with multicore nodes. Numerical results concerning the convergence behavior and the parallel performance of the proposed method are given along with discussions.
Reference:
Parallel multi-projection preconditioned methods based on semi-aggregation techniques (Byron E. Moutafis, Christos K. Filelis-Papadopoulos and George A. Gravvanis), In Journal of Computational Science, volume 22, 2017.
Bibtex Entry:
@article{MOUTAFIS201745, title = {Parallel multi-projection preconditioned methods based on semi-aggregation techniques}, journal = {Journal of Computational Science}, volume = {22}, number = {Supplement C}, pages = {45 - 53}, year = {2017}, bibyear = {2017}, issn = {1877-7503}, doi = {https://doi.org/10.1016/j.jocs.2017.08.020}, url = {http://www.sciencedirect.com/science/article/pii/S1877750317304647}, author = {Byron E. Moutafis and Christos K. Filelis-Papadopoulos and George A. Gravvanis}, abstract = {Abstract A parallel preconditioned iterative method in conjunction with an additive domain decomposition method based on semi-aggregation techniques for general sparse linear systems is presented. The proposed preconditioning scheme constitutes an algebraic non-overlapping domain decomposition method in fine-coarse (semi-coarse) subdomains, which is based only on the graph of the corresponding coefficient matrix and aggregation techniques. The proposed scheme is a hybrid algorithm designed for distributed systems with multicore nodes. Numerical results concerning the convergence behavior and the parallel performance of the proposed method are given along with discussions.}, }