SNESView

Prints or visualizes the SNES data structure.

Synopsis

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

Collective

Input Parameters

• snes - the SNES context

• viewer - the PetscViewer

Options Database Key

• -snes_view - Calls SNESView() at end of SNESSolve()

Notes

The available visualization contexts include

• PETSC_VIEWER_STDOUT_SELF - standard output (default)

• PETSC_VIEWER_STDOUT_WORLD - synchronized standard output where only the first processor opens the file. All other processors send their data to the first processor to print.

The available formats include

• PETSC_VIEWER_DEFAULT - standard output (default)

• PETSC_VIEWER_ASCII_INFO_DETAIL - more verbose output for SNESNASM

The user can open an alternative visualization context with PetscViewerASCIIOpen() - output to a specified file.

In the debugger you can do “call SNESView(snes,0)” to display the SNES solver. (The same holds for any PETSc object viewer).

See Also

SNES: Nonlinear Solvers, SNES, SNESLoad(), SNESCreate(), PetscViewerASCIIOpen()

Level

beginner

Location

src/snes/interface/snes.c

Implementations

SNESView_Composite() in src/snes/impls/composite/snescomposite.c
SNESView_FAS() in src/snes/impls/fas/fas.c
SNESView_NGS() in src/snes/impls/gs/snesgs.c
SNESView_NEWTONLS() in src/snes/impls/ls/ls.c
SNESView_MS() in src/snes/impls/ms/ms.c
SNESView_Multiblock() in src/snes/impls/multiblock/multiblock.c
SNESView_NASM() in src/snes/impls/nasm/nasm.c
SNESView_NCG() in src/snes/impls/ncg/snesncg.c
SNESView_NGMRES() in src/snes/impls/ngmres/snesngmres.c
SNESView_NEWTONTRDC() in src/snes/impls/ntrdc/ntrdc.c
SNESView_Patch() in src/snes/impls/patch/snespatch.c
SNESView_QN() in src/snes/impls/qn/qn.c
SNESView_NRichardson() in src/snes/impls/richardson/snesrichardson.c
SNESView_Shell() in src/snes/impls/shell/snesshell.c
SNESView_NEWTONTR() in src/snes/impls/tr/tr.c

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Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages