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fix & improve preconditioning strategy in cgs & bicgstab
author Jaroslav Hajek <highegg@gmail.com>
date Thu, 28 May 2009 07:37:13 +0200
parents 2b35cb600d50
children 40fb718a2e67
comparison
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9278:2b35cb600d50 9279:1673a0dc019f
1 2009-05-28 Jaroslav Hajek <highegg@gmail.com>
2
3 * sparse/bicgstab.m: Improve preconditioning; avoid explicit inverse.
4 * sparse/cgs.m: Improve preconditioning; avoid explicit inverse.
5
1 2009-05-28 Radek Salac <salac.r@gmail.com> 6 2009-05-28 Radek Salac <salac.r@gmail.com>
2 7
3 * sparse/bicgstab.m: New output when calling without arguments. 8 * sparse/bicgstab.m: New output when calling without arguments.
4 Time optimization - remove certain checks linked to preconditioner which 9 Time optimization - remove certain checks linked to preconditioner which
5 are unacceptably slow. 10 are unacceptably slow.