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<TITLE>HPL_broadcast HPL 2.0 Library Functions September 10, 2008</TITLE>
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<BODY BGCOLOR="WHITE" TEXT = "#000000" LINK = "#0000ff" VLINK = "#000099"
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      ALINK = "#ffff00">
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<H1>Name</H1>
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<B>HPL_broadcast</B> Broadcast operation.
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<H1>Synopsis</H1>
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<CODE>#include "hpl.h"</CODE><BR><BR>
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<CODE>int</CODE>
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<CODE>HPL_broadcast(</CODE>
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<CODE>void *</CODE>
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<CODE>BUFFER</CODE>,
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<CODE>const int</CODE>
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<CODE>COUNT</CODE>,
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<CODE>const HPL_T_TYPE</CODE>
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<CODE>DTYPE</CODE>,
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<CODE>const int</CODE>
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<CODE>ROOT</CODE>,
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<CODE>MPI_Comm</CODE>
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<CODE>COMM</CODE>
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<CODE>);</CODE>
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<H1>Description</H1>
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<B>HPL_broadcast</B>
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broadcasts  a message from the process with rank ROOT to
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all processes in the group.
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<H1>Arguments</H1>
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<PRE>
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BUFFER  (local input/output)          void *
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        On entry,  BUFFER  points to  the  buffer to be broadcast. On
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        exit, this array contains the broadcast data and is identical
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        on all processes in the group.
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</PRE>
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<PRE>
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COUNT   (global input)                const int
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        On entry,  COUNT  indicates the number of entries in  BUFFER.
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        COUNT must be at least zero.
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</PRE>
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<PRE>
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DTYPE   (global input)                const HPL_T_TYPE
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        On entry,  DTYPE  specifies the type of the buffers operands.
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</PRE>
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<PRE>
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ROOT    (global input)                const int
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        On entry, ROOT is the coordinate of the source process.
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</PRE>
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<PRE>
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COMM    (global/local input)          MPI_Comm
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        The MPI communicator identifying the process collection.
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</PRE>
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<H1>See Also</H1>
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<A HREF="HPL_reduce.html">HPL_reduce</A>,
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<A HREF="HPL_all_reduce.html">HPL_all_reduce</A>,
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<A HREF="HPL_barrier.html">HPL_barrier</A>,
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<A HREF="HPL_min.html">HPL_min</A>,
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<A HREF="HPL_max.html">HPL_max</A>,
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<A HREF="HPL_sum.html">HPL_sum</A>.
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