petsc-3.10.5 2019-03-28
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# SNESReasonView

Displays the reason a SNES solve converged or diverged to a viewer

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode  SNESReasonView(SNES snes,PetscViewer viewer)

Collective on SNES

### Parameter

| snes | - iterative context obtained from SNESCreate()
| viewer | - the viewer to display the reason

### Options Database Keys

-snes_converged_reason -print reason for converged or diverged, also prints number of iterations

### Keywords

SNES, solve, linear system

### See Also

SNESCreate(), SNESSetUp(), SNESDestroy(), SNESSetTolerances(), SNESConvergedDefault()

### Level

beginner

### Location

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