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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="PetscBinarySynchronizedRead"><H1>PetscBinarySynchronizedRead</H1></A>
Reads from a binary file.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
PetscErrorCode PetscBinarySynchronizedRead(MPI_Comm comm,int fd,void *p,PetscInt n,PetscDataType type)
</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>- the MPI communicator
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>fd </B></TD><TD>- the file
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>n </B></TD><TD>- the number of items to read
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>type </B></TD><TD>- the type of items to read (PETSC_INT, PETSC_DOUBLE or PETSC_SCALAR)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<DT><B>p </B> -the buffer
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Does a <A HREF="../Sys/PetscBinaryRead.html#PetscBinaryRead">PetscBinaryRead</A>() followed by an MPI_Bcast()
<P>
<A HREF="../Sys/PetscBinarySynchronizedRead.html#PetscBinarySynchronizedRead">PetscBinarySynchronizedRead</A>() uses byte swapping to work on all machines.
Integers are stored on the file as 32 long, regardless of whether
they are stored in the machine as 32 or 64, this means the same
binary file may be read on any machine.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Sys/PetscBinaryWrite.html#PetscBinaryWrite">PetscBinaryWrite</A>(), <A HREF="../Sys/PetscBinaryOpen.html#PetscBinaryOpen">PetscBinaryOpen</A>(), <A HREF="../Sys/PetscBinaryClose.html#PetscBinaryClose">PetscBinaryClose</A>(), <A HREF="../Sys/PetscBinaryRead.html#PetscBinaryRead">PetscBinaryRead</A>(), <A HREF="../Sys/PetscBinarySynchronizedWrite.html#PetscBinarySynchronizedWrite">PetscBinarySynchronizedWrite</A>(),
<BR><A HREF="../Sys/PetscBinarySynchronizedSeek.html#PetscBinarySynchronizedSeek">PetscBinarySynchronizedSeek</A>()
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/fileio/sysio.c.html#PetscBinarySynchronizedRead">src/sys/fileio/sysio.c</A>
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