#include "petscsnes.h" PetscErrorCode SNESGetConvergenceHistory(SNES snes,PetscReal *a,PetscInt *its,PetscInt *na)Not Collective
|a||- array to hold history|
|its||- integer array holds the number of linear iterations (or negative if not converged) for each solve.|
|na||- size of a and its|
call SNESGetConvergenceHistory(SNES snes, integer na, integer ierr)
This routine is useful, e.g., when running a code for purposes of accurate performance monitoring, when no I/O should be done during the section of code that is being timed.