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<TITLE>PetscViewerHDF5Open</TITLE>
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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.7.5 v3.7.5 docs/manualpages/Viewer/PetscViewerHDF5Open.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PetscViewerHDF5Open"><H1>PetscViewerHDF5Open</H1></A>
Opens a file for HDF5 input/output.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsys.h"
#include "petscviewerhdf5.h"
PetscErrorCode PetscViewerHDF5Open(MPI_Comm comm, const char name[], PetscFileMode type, PetscViewer *hdf5v)
</PRE>
Collective on <A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>comm </B></TD><TD>- MPI communicator
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>name </B></TD><TD>- name of file
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>type </B></TD><TD>- type of file
</TD></TR></TABLE>
<pre>
FILE_MODE_WRITE - create new file for binary output
</pre>
<pre>
FILE_MODE_READ - open existing file for binary input
</pre>
<pre>
FILE_MODE_APPEND - open existing file for binary output
</pre>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>hdf5v </B> -<A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A> for HDF5 input/output to use with the specified file
<br>
<P>
<H3><FONT COLOR="#CC3333">Options Database</FONT></H3>
<DT><B>-viewer_hdf5_base_dimension2 </B> -turns on (true) or off (false) using a dimension of 2 in the HDF5 file even if the bs/dof of the vector is 1
<br>
<DT><B>-viewer_hdf5_sp_output </B> -forces (if true) the viewer to write data in single precision independent on the precision of <A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A>
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Note</FONT></H3>
This <A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A> should be destroyed with <A HREF="../Viewer/PetscViewerDestroy.html#PetscViewerDestroy">PetscViewerDestroy</A>().
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Viewer/PetscViewerASCIIOpen.html#PetscViewerASCIIOpen">PetscViewerASCIIOpen</A>(), <A HREF="../Viewer/PetscViewerPushFormat.html#PetscViewerPushFormat">PetscViewerPushFormat</A>(), <A HREF="../Viewer/PetscViewerDestroy.html#PetscViewerDestroy">PetscViewerDestroy</A>(), <A HREF="../Viewer/PetscViewerHDF5SetBaseDimension2.html#PetscViewerHDF5SetBaseDimension2">PetscViewerHDF5SetBaseDimension2</A>(),
<BR><A HREF="../Viewer/PetscViewerHDF5SetSPOutput.html#PetscViewerHDF5SetSPOutput">PetscViewerHDF5SetSPOutput</A>(), <A HREF="../Viewer/PetscViewerHDF5GetBaseDimension2.html#PetscViewerHDF5GetBaseDimension2">PetscViewerHDF5GetBaseDimension2</A>(), <A HREF="../Vec/VecView.html#VecView">VecView</A>(), <A HREF="../Mat/MatView.html#MatView">MatView</A>(), <A HREF="../Vec/VecLoad.html#VecLoad">VecLoad</A>(),
<A HREF="../Mat/MatLoad.html#MatLoad">MatLoad</A>(), <A HREF="../Sys/PetscFileMode.html#PetscFileMode">PetscFileMode</A>, <A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/classes/viewer/impls/hdf5/hdf5v.c.html#PetscViewerHDF5Open">src/sys/classes/viewer/impls/hdf5/hdf5v.c</A>
<BR><A HREF="./index.html">Index of all Viewer routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/vec/vec/examples/tutorials/ex10.c.html">src/vec/vec/examples/tutorials/ex10.c.html</A><BR>
<A HREF="../../../src/vec/vec/examples/tutorials/ex19.c.html">src/vec/vec/examples/tutorials/ex19.c.html</A><BR>
<A HREF="../../../src/dm/examples/tutorials/ex9.c.html">src/dm/examples/tutorials/ex9.c.html</A><BR>
<A HREF="../../../src/dm/examples/tutorials/ex10.c.html">src/dm/examples/tutorials/ex10.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex12.c.html">src/snes/examples/tutorials/ex12.c.html</A><BR>
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