petsc-3.4.5 2014-06-29

KSPGMRESModifiedGramSchmidtOrthogonalization

 This is the basic orthogonalization routine using modified Gram-Schmidt.

Synopsis

#undef __FUNCT__
#define __FUNCT__ "KSPGMRESModifiedGramSchmidtOrthogonalization"
PetscErrorCode  KSPGMRESModifiedGramSchmidtOrthogonalization(KSP ksp,PetscInt it)
Collective on KSP

Input Parameters

ksp - KSP object, must be associated with GMRES, FGMRES, or LGMRES Krylov method
its - one less then the current GMRES restart iteration, i.e. the size of the Krylov space

Options Database Keys

-ksp_gmres_modifiedgramschmidt -Activates KSPGMRESModifiedGramSchmidtOrthogonalization()

See Also

KSPGMRESSetOrthogonalization(), KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESGetOrthogonalization()

Level:intermediate
Location:src/ksp/ksp/impls/gmres/borthog.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages