petsc-3.10.4 2019-02-26
Report Typos and Errors

PetscViewerGetSubViewer

Creates a new PetscViewer (same type as the old) that lives on a subcommunicator

Synopsis

#include "petscviewer.h" 
PetscErrorCode  PetscViewerGetSubViewer(PetscViewer viewer,MPI_Comm comm,PetscViewer *outviewer)
Collective on PetscViewer

Input Parameter

viewer -the PetscViewer to be reproduced

Output Parameter

outviewer -new PetscViewer

Notes

Call PetscViewerRestoreSubViewer() to return this PetscViewer, NOT PetscViewerDestroy()

This is most commonly used to view a sequential object that is part of a parallel object. For example block Jacobi PC view could use this to obtain a PetscViewer that is used with the sequential KSP on one block of the preconditioner.

See Also

PetscViewerSocketOpen(), PetscViewerASCIIOpen(), PetscViewerDrawOpen(), PetscViewerRestoreSubViewer()

Level

advanced

Location

src/sys/classes/viewer/interface/dupl.c

Examples

src/sys/examples/tutorials/ex15.c.html
src/vec/vec/examples/tutorials/ex9f.F90.html
src/vec/vec/examples/tutorials/ex14f.F90.html
src/dm/examples/tutorials/ex6.c.html

Implementations

PetscViewerGetSubViewer_ASCII in src/sys/classes/viewer/impls/ascii/filev.c
PetscViewerGetSubViewer_Binary in src/sys/classes/viewer/impls/binary/binv.c
PetscViewerGetSubViewer_Draw in src/sys/classes/viewer/impls/draw/drawv.c
PetscViewerGetSubViewer_String in src/sys/classes/viewer/impls/string/stringv.c

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