<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!--Converted with LaTeX2HTML 2018 (Released Feb 1, 2018) --> <HTML> <HEAD> <TITLE>psb_snd -- Send data</TITLE> <META NAME="description" CONTENT="psb_snd -- Send data"> <META NAME="keywords" CONTENT="userhtml"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META NAME="Generator" CONTENT="LaTeX2HTML v2018"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="userhtml.css"> <LINK REL="next" HREF="node116.html"> <LINK REL="previous" HREF="node114.html"> <LINK REL="up" HREF="node99.html"> <LINK REL="next" HREF="node116.html"> </HEAD> <BODY > <DIV CLASS="navigation"><!--Navigation Panel--> <A NAME="tex2html1697" HREF="node116.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html1693" HREF="node99.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html1687" HREF="node114.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html1695" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html1698" HREF="node116.html">psb_rcv Receive</A> <B> Up:</B> <A NAME="tex2html1694" HREF="node99.html">Parallel environment routines</A> <B> Previous:</B> <A NAME="tex2html1688" HREF="node114.html">psb_nrm2 Global</A> <B> <A NAME="tex2html1696" HREF="node1.html">Contents</A></B> <BR> <BR></DIV> <!--End of Navigation Panel--> <H2><A NAME="SECTION000816000000000000000"> psb_snd -- Send data</A> </H2> <P> <PRE> call psb_snd(icontxt, dat, dst, m) </PRE> <P> This subroutine sends 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>dat</STRONG></DT> <DD>The data to be sent. <BR> Scope: <B>local</B>. <BR> Type: <B>required</B>. <BR> Intent: <B>in</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 <SPAN CLASS="MATH"><IMG WIDTH="18" HEIGHT="13" ALIGN="BOTTOM" BORDER="0" SRC="img145.png" ALT="$m$"></SPAN> is not specified, size must agree as well. </DD> <DT><STRONG>dst</STRONG></DT> <DD>Destination process. <BR> Scope: <B>global</B>. <BR> Type: <B>required</B>. <BR> Intent: <B>in</B>. <BR> Specified as: an integer value <!-- MATH $0<= dst <= np-1$ --> <SPAN CLASS="MATH"><IMG WIDTH="146" HEIGHT="30" ALIGN="MIDDLE" BORDER="0" SRC="img146.png" ALT="$0<= dst <= np-1$"></SPAN>. <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 $0<= m <= size(dat,1)$ --> <SPAN CLASS="MATH"><IMG WIDTH="171" HEIGHT="32" ALIGN="MIDDLE" BORDER="0" SRC="img147.png" ALT="$0<= m <= size(dat,1)$"></SPAN>. <BR> When <SPAN CLASS="MATH"><IMG WIDTH="26" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" SRC="img143.png" ALT="$dat$"></SPAN> is a rank 2 array, specifies the number of rows to be sent independently of the leading dimension <SPAN CLASS="MATH"><IMG WIDTH="83" HEIGHT="32" ALIGN="MIDDLE" BORDER="0" SRC="img148.png" ALT="$size(dat,1)$"></SPAN>; must have the same value on sending and receiving processes. </DD> </DL> <P> <DL> <DT><STRONG><B>On Return</B></STRONG></DT> <DD> </DD> </DL> <P> <BIG CLASS="LARGE"><B>Notes</B></BIG> <OL> <LI>This subroutine implies a synchronization, but only between the calling process and the destination process <SPAN CLASS="MATH"><IMG WIDTH="25" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" SRC="img149.png" ALT="$dst$"></SPAN>. </LI> </OL> <P> <DIV CLASS="navigation"><HR> <!--Navigation Panel--> <A NAME="tex2html1697" HREF="node116.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html1693" HREF="node99.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html1687" HREF="node114.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html1695" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html1698" HREF="node116.html">psb_rcv Receive</A> <B> Up:</B> <A NAME="tex2html1694" HREF="node99.html">Parallel environment routines</A> <B> Previous:</B> <A NAME="tex2html1688" HREF="node114.html">psb_nrm2 Global</A> <B> <A NAME="tex2html1696" HREF="node1.html">Contents</A></B> </DIV> <!--End of Navigation Panel--> </BODY> </HTML>