petsc-3.9.4 2018-09-11

KSPMonitorSolution

Monitors progress of the KSP solvers by calling VecView() for the approximate solution at each iteration.

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

Collective on KSP

For some Krylov methods such as GMRES constructing the solution at each iteration is expensive, hence using this will slow the code.

KSP, nonlinear, vector, monitor, view

intermediate