## Abstract In this paper, the multifrontal method is employed to precondition the conjugate gradient (CG) algorithm with the block Toeplitz matrix based fast Fourier transform (FFT) technique for dense matrix equations from the mixed potential integral equation (MPIE) to enhance the computational
โฆ LIBER โฆ
Fully vectorizable block preconditionings with approximate inverses for non-symmetric systems of equations
โ Scribed by J. C. Diaz; C. G. Macedo Jr.
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 783 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0029-5981
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This paper presents an iterative algorithm for solving non-symmetric systems of equations with multiple righthand sides. The algorithm is an extension of the Generalised Conjugate Residual method (GCR) and combines the advantages of a direct solver with those of an iterative solver: it does not have