<!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_rcv -- Receive data</TITLE> <META NAME="description" CONTENT="psb_rcv -- Receive 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="previous" HREF="node110.html"> <LINK REL="up" HREF="node95.html"> <LINK REL="next" HREF="node112.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html1630" HREF="node112.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html1626" HREF="node95.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html1622" HREF="node110.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html1628" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html1631" HREF="node112.html">Error handling</A> <B> Up:</B> <A NAME="tex2html1627" HREF="node95.html">Parallel environment routines</A> <B> Previous:</B> <A NAME="tex2html1623" HREF="node110.html">psb_snd Send</A> <B> <A NAME="tex2html1629" HREF="node1.html">Contents</A></B> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION000816000000000000000"> psb_rcv -- Receive data</A> </H2> <P> <PRE> call psb_rcv(icontxt, dat, src, m) </PRE> <P> This subroutine receives a packet of data to a destination. <DL> <DT><STRONG>Type:</STRONG></DT> <DD>Synchronous: see usage notes. </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>src</STRONG></DT> <DD>Source process. <BR> Scope: <B>global</B>. <BR> Type: <B>required</B>. <BR> Intent: <B>in</B>. <BR> Specified as: an integer value <!-- MATH $0<= src <= np-1$ --> <IMG WIDTH="147" HEIGHT="30" ALIGN="MIDDLE" BORDER="0" SRC="img139.png" ALT="$0<= src <= np-1$">. <BR></DD> <DT><STRONG>m</STRONG></DT> <DD>Number of rows. <BR> Scope: <B>global</B>. <BR> Type: <B>Optional</B>. <BR> Intent: <B>in</B>. <BR> Specified as: an integer value <!-- MATH $0<= m <= size(dat,1)$ --> <IMG WIDTH="172" HEIGHT="32" ALIGN="MIDDLE" BORDER="0" SRC="img135.png" ALT="$0<= m <= size(dat,1)$">. <BR> When <IMG WIDTH="26" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" SRC="img136.png" ALT="$dat$"> is a rank 2 array, specifies the number of rows to be sent independently of the leading dimension <IMG WIDTH="83" HEIGHT="32" ALIGN="MIDDLE" BORDER="0" SRC="img137.png" ALT="$size(dat,1)$">; must have the same value on sending and receiving processes. </DD> </DL> <P> <DL> <DT><STRONG><B>On Return</B></STRONG></DT> <DD> </DD> <DT><STRONG>dat</STRONG></DT> <DD>The data to be received. <BR> Scope: <B>local</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 and rank must agree on sender and receiver process; if <IMG WIDTH="18" HEIGHT="13" ALIGN="BOTTOM" BORDER="0" SRC="img133.png" ALT="$m$"> is not specified, size must agree as well. </DD> </DL> <P> <FONT SIZE="+1"><B>Notes</B></FONT> <OL> <LI>This subroutine implies a synchronization, but only between the calling process and the source process <IMG WIDTH="26" HEIGHT="13" ALIGN="BOTTOM" BORDER="0" SRC="img140.png" ALT="$src$">. </LI> </OL> <P> <HR> <!--Navigation Panel--> <A NAME="tex2html1630" HREF="node112.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html1626" HREF="node95.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html1622" HREF="node110.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html1628" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html1631" HREF="node112.html">Error handling</A> <B> Up:</B> <A NAME="tex2html1627" HREF="node95.html">Parallel environment routines</A> <B> Previous:</B> <A NAME="tex2html1623" HREF="node110.html">psb_snd Send</A> <B> <A NAME="tex2html1629" HREF="node1.html">Contents</A></B> <!--End of Navigation Panel--> </BODY> </HTML>