KSPCGGetNormD#

Got norm of the direction when the solver is used inside SNESNEWTONTR

Synopsis#

#include "petscksp.h" 
PetscErrorCode KSPCGGetNormD(KSP ksp, PetscReal *norm_d)

Collective

Input Parameters#

  • ksp - the iterative context

  • norm_d - the norm of the direction

See Also#

KSP: Linear System Solvers, KSP, KSPCG, KSPNASH, KSPSTCG, KSPGLTR

Level#

advanced

Location#

src/ksp/ksp/impls/cg/cgtype.c

Implementations#

KSPCGGetNormD_GLTR in src/ksp/ksp/impls/cg/gltr/gltr.c
KSPCGGetNormD_NASH in src/ksp/ksp/impls/cg/nash/nash.c
KSPCGGetNormD_STCG in src/ksp/ksp/impls/cg/stcg/stcg.c


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