petsc-3.4.4 2014-03-13


Creates a new PetscViewer (same type as the old) that lives on a single processor (with MPI_comm PETSC_COMM_SELF)


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

Input Parameter

viewer -the PetscViewer to be duplicated

Output Parameter

outviewer -new PetscViewer

Notes: Call PetscViewerRestoreSingleton() 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(), PetscViewerRestoreSingleton()

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