petsc-3.3-p7 2013-05-11

SNESGetConvergenceHistory

 Gets the array used to hold the convergence history.

Synopsis

#include "petscsnes.h"  
#include "petscdmshell.h" 
#include "petscsys.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

See Also

SNESSetConvergencHistory()

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

Examples

src/snes/examples/tutorials/ex6.c.html
src/snes/examples/tutorials/ex38.c.html