PETSc version 3.17.5

KSPGMRESMonitorKrylov

Calls VecView() for each new direction in the GMRES accumulated Krylov space.

#include "petscksp.h"  
PetscErrorCode  KSPGMRESMonitorKrylov(KSP ksp,PetscInt its,PetscReal fgnorm,void *dummy)

Collective on ksp

	ksp	- the KSP context
	its	- iteration number
	fgnorm	- 2-norm of residual (or gradient)
	dummy	- an collection of viewers created with KSPViewerCreate()

-ksp_gmres_krylov_monitor <bool>

- Plot the Krylov directions

A new PETSCVIEWERDRAW is created for each Krylov vector so they can all be simultaneously viewed

intermediate