KSPCGGetNormD#
Get norm of the direction when the solver is used inside SNESNEWTONTR
Synopsis#
#include "petscksp.h"
PetscErrorCode KSPCGGetNormD(KSP ksp, PetscReal *norm_d)
Not 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, SNESNEWTONTR
Level#
advanced
Location#
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
Index of all KSP routines
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Index of all manual pages