petsc-3.11.4 2019-09-28

SNESGetConvergenceHistory

Gets the array used to hold the convergence history.

Synopsis

#include "petscsnes.h"  
PetscErrorCode  SNESGetConvergenceHistory(SNES snes,PetscReal *a[],PetscInt *its[],PetscInt *na)

Not Collective

Input Parameter

snes -iterative context obtained from SNESCreate()

Output Parameters

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

Notes

The calling sequence for this routine in Fortran is

  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.

Keywords

SNES, get, convergence, history

Level

intermediate

Location

src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages