SNESGetConvergenceHistory#

Gets the arrays 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, usually was set with SNESSetConvergenceHistory()

  • its - integer array holds the number of linear iterations (or negative if not converged) for each solve.

  • na - size of a and its

Note#

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.

Fortran Note#

The calling sequence for this routine in Fortran is

    call SNESGetConvergenceHistory(SNES snes, integer na, integer ierr)

See Also#

SNES: Nonlinear Solvers, SNES, SNESSolve(), SNESSetConvergenceHistory()

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