In this paper we briefly summarize some of the most important algorithms for the parallel solution of Almost Block Diagonal linear systems. Then, we consider a parallel algorithm, based on the cyclic reduction, which seems to be quite competitive, especially when systems with additional boundary blocks are considered. Numerical tests carried out on a distributed memory parallel computer are reported and analysed.
机构:
Univ Padua, Dept Math Tullio Levi Civita, Via Trieste 63, I-35121 Padua, ItalyUniv Padua, Dept Math Tullio Levi Civita, Via Trieste 63, I-35121 Padua, Italy