caa a22 4500 465751601 CHVBK 20180323111835.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF02250634 doi (NATIONALLICENCE)springer-10.1007/BF02250634 Meyer A. Institute of Mechanics, Academy of Science GDR, P.O. Box 408, PSF 408-DDR-9010, Chemnitz, German Democratic Republic aut A parallel preconditioned conjugate gradient method using domain decomposition and inexact solvers on each subdomain [Elektronische Daten] [A. Meyer] Ein parallelisierte vorkonditionierte Methode der konjugierten Gradienten mit ungenauen Lösern auf jedem Unterteilungsbereich We describe a preconditioned conjugate gradient solution strategy for a multiprocessor system with message passing architecture. The preconditioner combines two techniques, a Schurcomplement preconditioning over "coupling boundaries” between the subdomains and an arbitrary choice of classic preconditioning for the inner degrees of freedom on each subdomain. All computational work on the single subdomains is carried out in parallel by distributing the subdomain data over the processor network before starting the finite element solution process (including generating the element matrices and assemblying the local subdomain stiffness matrix). The resulting spectral condition number of the entire preconditioner is estimated. For the important example of choosing MIC(0)-*-preconditioning on the subdomains, the condition number obtained is essentially the product of the two condition numbers involved. Springer-Verlag, 1990 Domain decomposition method nationallicence iterative solvers nationallicence finite element equations nationallicence Computing Springer-Verlag 45/3(1990-09-01), 217-234 0010-485X 45:3<217 1990 45 607 https://doi.org/10.1007/BF02250634 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02250634 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Meyer A. Institute of Mechanics, Academy of Science GDR, P.O. Box 408, PSF 408-DDR-9010, Chemnitz, German Democratic Republic aut NATIONALLICENCE 773 0- Computing Springer-Verlag 45/3(1990-09-01), 217-234 0010-485X 45:3<217 1990 45 607 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer