KSPLCD#
Implements the LCD (left conjugate direction) method
Options Database Keys#
-ksp_lcd_restart - number of vectors conjugate
-ksp_lcd_haptol - tolerance for exact convergence (happy ending)
Note#
Support only for left preconditioning
References#
**** -*** J.Y. Yuan, G.H.Golub, R.J. Plemmons, and W.A.G. Cecilio. Semiconjugate direction methods for real positive definite system. BIT Numerical Mathematics, 44(1),2004.
**** -*** Y. Dai and J.Y. Yuan. Study on semiconjugate direction methods for nonsymmetric systems. International Journal for Numerical Methods in Engineering, 60, 2004.
**** -*** L. Catabriga, A.L.G.A. Coutinho, and L.P.Franca. Evaluating the LCD algorithm for solving linear systems of equations arising from implicit SUPG formulation of compressible flows. International Journal for Numerical Methods in Engineering, 60, 2004
**** -*** L. Catabriga, A. M. P. Valli, B. Z. Melotti, L. M. Pessoa, A. L. G. A. Coutinho, Performance of LCD iterative method in the finite element and finite difference solution of convection diffusion equations, Communications in Numerical Methods in Engineering, (Early View).
Contributed by#
Lucia Catabriga luciac@ices.utexas.edu
See Also#
KSP: Linear System Solvers, KSPCreate(), KSPSetType(), KSPType, KSP,
KSPCGSetType(), KSPLCDSetRestart(), KSPLCDSetHapTol()
Level#
beginner
Location#
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages