PC
2010
13 years 9 months ago
2010
We present an efficient implementation of the Modified SParse Approximate Inverse (MSPAI) preconditioner. MSPAI generalizes the class of preconditioners based on Frobenius norm mi...
CSC
2009
14 years 4 months ago
2009
In this paper, we study the theoretical properties of sparse approximate inverse (SAI) preconditioners. Particularly, we show that for Mmatrices, nonnegativeness is the key to com...
SC
2003
ACM
14 years 8 months ago
2003
ACM
We investigate the use of the multistep successive preconditioning strategies (MSP) to construct a class of parallel multilevel sparse approximate inverse (SAI) preconditioners. W...