petsc-3.12.5 2020-03-29
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PetscViewerBinaryGetUseMPIIO

 Returns PETSC_TRUE if the binary viewer uses MPI-IO.

Synopsis

#include "petscviewer.h"   
PetscErrorCode PetscViewerBinaryGetUseMPIIO(PetscViewer viewer,PetscBool *flg)
Not Collective

Input Parameter

viewer -PetscViewer context, obtained from PetscViewerBinaryOpen()

Output Parameter

flg -PETSC_TRUE if MPI-IO is being used

Options Database

-viewer_binary_mpiio : Flag for using MPI-IO

Note

If MPI-IO is not available, this function will always return PETSC_FALSE

Fortran Note

This routine is not supported in Fortran.

See Also

PetscViewerBinaryOpen(), PetscViewerBinaryGetInfoPointer(), PetscViewerBinarySetUseMPIIO(), PetscViewerBinaryGetMPIIOOffset()

Level

advanced

Location

src/sys/classes/viewer/impls/binary/binv.c

Examples

src/dm/examples/tutorials/ex15.c.html

Implementations

PetscViewerBinaryGetUseMPIIO_Binary in src/sys/classes/viewer/impls/binary/binv.c

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