<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 2008 (1.71) original version by: Nikos Drakos, CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>psb_bcast -- Broadcast data</TITLE> <META NAME="description" CONTENT="psb_bcast -- Broadcast data"> <META NAME="keywords" CONTENT="userhtml"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META NAME="Generator" CONTENT="LaTeX2HTML v2008"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="userhtml.css"> <LINK REL="next" HREF="node81.html"> <LINK REL="previous" HREF="node79.html"> <LINK REL="up" HREF="node71.html"> <LINK REL="next" HREF="node81.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html1188" HREF="node81.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html1184" HREF="node71.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html1178" HREF="node79.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html1186" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html1189" HREF="node81.html">psb_sum Global</A> <B> Up:</B> <A NAME="tex2html1185" HREF="node71.html">Parallel environment routines</A> <B> Previous:</B> <A NAME="tex2html1179" HREF="node79.html">psb_abort Abort</A> <B> <A NAME="tex2html1187" HREF="node1.html">Contents</A></B> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION00089000000000000000"> psb_bcast -- Broadcast data</A> </H2> <P> <PRE> call psb_bcast(icontxt, dat, root) </PRE> <P> This subroutine implements a broadcast operation based on the underlying communication library. <DL> <DT><STRONG>Type:</STRONG></DT> <DD>Synchronous. </DD> <DT><STRONG><B>On Entry </B></STRONG></DT> <DD> </DD> <DT><STRONG>icontxt</STRONG></DT> <DD>the communication context identifying the virtual parallel machine. <BR> Scope: <B>global</B>. <BR> Type: <B>required</B>. <BR> Intent: <B>in</B>. <BR> Specified as: an integer variable. </DD> <DT><STRONG>dat</STRONG></DT> <DD>On the root process, the data to be broadcast. <BR> Scope: <B>global</B>. <BR> Type: <B>required</B>. <BR> Intent: <B>inout</B>. <BR> Specified as: an integer, real or complex variable, which may be a scalar, or a rank 1 or 2 array, or a character or logical variable, which may be a scalar or rank 1 array. Type, kind, rank and size must agree on all processes. </DD> <DT><STRONG>root</STRONG></DT> <DD>Root process holding data to be broadcast. <BR> Scope: <B>global</B>. <BR> Type: <B>optional</B>. <BR> Intent: <B>in</B>. <BR> Specified as: an integer value <!-- MATH $0<= root <= np-1$ --> <IMG WIDTH="153" HEIGHT="30" ALIGN="MIDDLE" BORDER="0" SRC="img127.png" ALT="$0<= root <= np-1$">, default 0 </DD> </DL> <P> <DL> <DT><STRONG><B>On Return</B></STRONG></DT> <DD> </DD> <DT><STRONG>dat</STRONG></DT> <DD>On processes other than root, the data to be broadcast. <BR> Scope: <B>global</B>. <BR> Type: <B>required</B>. <BR> Intent: <B>inout</B>. <BR> Specified as: an integer, real or complex variable, which may be a scalar, or a rank 1 or 2 array, or a character or logical scalar. Type, kind, rank and size must agree on all processes. </DD> </DL> <P> <HR> <!--Navigation Panel--> <A NAME="tex2html1188" HREF="node81.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html1184" HREF="node71.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html1178" HREF="node79.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html1186" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html1189" HREF="node81.html">psb_sum Global</A> <B> Up:</B> <A NAME="tex2html1185" HREF="node71.html">Parallel environment routines</A> <B> Previous:</B> <A NAME="tex2html1179" HREF="node79.html">psb_abort Abort</A> <B> <A NAME="tex2html1187" HREF="node1.html">Contents</A></B> <!--End of Navigation Panel--> </BODY> </HTML>