KSPFBCGS#
Implements the flexible BiCGStab method. Flexible Krylov Methods
Notes#
Flexible BiCGStab, unlike most Krylov methods allows the preconditioner to be nonlinear, that is the action of the preconditioner to a vector need not be linear in the vector entries.
KSPFBCGSR provides another variant of this algorithm that requires fewer MPI_Allreduce() calls and my converge faster
See KSPPIPEBCGS for a pipelined version of the algorithm
Only supportst right preconditioning
See Also#
KSP: Linear System Solvers, Flexible Krylov Methods, KSPFBCGSR, KSPPIPEBCGS, KSPBCGSL, KSPFBCGS, KSPCreate(), KSPFGMRES, KSPSetType(), KSPType, KSP, KSPBICG, KSPSetPCSide()
Level#
beginner
Location#
src/ksp/ksp/impls/bcgs/fbcgs/fbcgs.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages