petsc-3.7.3 2016-07-24
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# PetscViewerHDF5SetSPOutput

Data is written to disk in single precision even if PETSc is compiled with double precision PetscReal.

### Synopsis

    #include "petscsys.h"
    #include "petscviewerhdf5.h"
    PetscErrorCode PetscViewerHDF5SetSPOutput(PetscViewer viewer,PetscBool flg)

Logically Collective on PetscViewer

### Input Parameters

| viewer | - the PetscViewer; if it is not hdf5 then this command is ignored
| flg | - if PETSC_TRUE the data will be written to disk with single precision

### Options Database

-viewer_hdf5_sp_output -turns on (true) or off (false) output in single precision

Notes: Setting this option does not make any difference if PETSc is compiled with single precision in the first place. It does not affect reading datasets (HDF5 handle this internally).

### See Also

PetscViewerFileSetMode(), PetscViewerCreate(), PetscViewerSetType(), PetscViewerBinaryOpen(),
PetscReal

Level:intermediate
Location: src/sys/classes/viewer/impls/hdf5/hdf5v.c
Index of all Viewer routines
Table of Contents for all manual pages
Index of all manual pages