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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/PetscViewerBinaryRead.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PetscViewerBinaryRead"><H1>PetscViewerBinaryRead</H1></A>
Reads from a binary file, all processors get the same result
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscviewer.h"
PetscErrorCode PetscViewerBinaryRead(PetscViewer viewer,void *data,PetscInt num,PetscInt *count,PetscDataType dtype)
</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>viewer </B></TD><TD>- the binary viewer
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>data </B></TD><TD>- location of the data to be written
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>num </B></TD><TD>- number of items of data to read
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dtype </B></TD><TD>- type of data to read
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<DT><B>count </B> -number of items of data actually read, or NULL. Unless an error is generated this is always set to the input parameter num.
<br>
<P>
<P>
<P>
Developer Note: Since count is always set to num it is not clear what purpose the output argument count serves.
<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>(),
<BR><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="../Viewer/PetscViewerBinaryGetDescriptor.html#PetscViewerBinaryGetDescriptor">PetscViewerBinaryGetDescriptor</A>(),
<A HREF="../Viewer/PetscViewerBinaryGetInfoPointer.html#PetscViewerBinaryGetInfoPointer">PetscViewerBinaryGetInfoPointer</A>(), <A HREF="../Sys/PetscFileMode.html#PetscFileMode">PetscFileMode</A>, <A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A>, PetscBinaryViewerRead()
<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/binary/binv.c.html#PetscViewerBinaryRead">src/sys/classes/viewer/impls/binary/binv.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/dm/examples/tutorials/ex65dm.c.html">src/dm/examples/tutorials/ex65dm.c.html</A><BR>
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