SNESMonitorJacUpdateSpectrum#
Monitors the spectrun of the change in the Jacobian from the last Jacobian evaluation of a SNESSolve()
Synopsis#
#include "petsc/private/snesimpl.h"
PetscErrorCode SNESMonitorJacUpdateSpectrum(SNES snes, PetscInt it, PetscReal fnorm, PetscViewerAndFormat *vf)
Collective
Input Parameters#
snes - the
SNEScontextit - iteration number
fnorm - 2-norm of residual
vf - viewer and format structure
Options Database Key#
-snes_monitor_jacupdate_spectrum - activates this monitor
Notes#
This routine prints the eigenvalues of the difference in the Jacobians
This is not called directly by users, rather one calls SNESMonitorSet(), with this function as an argument, to cause the monitor
to be used during the SNES solve.
See Also#
SNES: Nonlinear Solvers, SNESMonitorSet(), SNESMonitorSolution(), SNESMonitorRange(), PetscViewerFormat, PetscViewerAndFormat
Level#
intermediate
Location#
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages