A residual based sparse approximate inverse preconditioning procedure for large sparse linear systems
A residual based sparse approximate inverse preconditioning procedure for large sparse linear systems
Summary We propose a residual based sparse approximate inverse (RSAI) preconditioning procedure, for the large sparse linear system A x = b . Different from the SParse Approximate Inverse (SPAI) algorithm proposed by Grote and Huckle (SIAM Journal on Scientific Computing, 18 (1997), pp. 838–853.), RSAI uses only the dominant …