fdurastante/psblas3
1
0
Fork 0
mirror of https://github.com/sfilippone/psblas3.git synced 2026-10-13 09:29:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

psblas3:

Browse Source 
Documentation changes. We have barely begun.....
This commit is contained in:
Salvatore Filippone
2011-12-16 16:45:25 +00:00
parent c730f15b58
commit 844a942947
243 changed files with 14860 additions and 15182 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/html/node82.html
+57 -40
View File
@@ -7,8 +7,8 @@ original version by: Nikos Drakos, CBLU, University of Leeds
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
<HTML>
<HEAD>
<TITLE>psb_bcast -- Broadcast data</TITLE>
<META NAME="description" CONTENT="psb_bcast -- Broadcast data">
<TITLE>psb_sum -- Global sum</TITLE>
<META NAME="description" CONTENT="psb_sum -- Global sum">
<META NAME="keywords" CONTENT="userhtml">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
@@ -20,48 +20,48 @@ original version by: Nikos Drakos, CBLU, University of Leeds
<LINK REL="next" HREF="node83.html">
<LINK REL="previous" HREF="node81.html">
<LINK REL="up" HREF="node73.html">
<LINK REL="up" HREF="node72.html">
<LINK REL="next" HREF="node83.html">
</HEAD>
<BODY >
<!--Navigation Panel-->
<A NAME="tex2html1217"
<A NAME="tex2html1215"
HREF="node83.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
<A NAME="tex2html1213"
HREF="node73.html">
<A NAME="tex2html1211"
HREF="node72.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
<A NAME="tex2html1207"
<A NAME="tex2html1205"
HREF="node81.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
<A NAME="tex2html1215"
<A NAME="tex2html1213"
HREF="node1.html">
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
<BR>
<B> Next:</B> <A NAME="tex2html1218"
HREF="node83.html">psb_sum Global</A>
<B> Up:</B> <A NAME="tex2html1214"
HREF="node73.html">Parallel environment routines</A>
<B> Previous:</B> <A NAME="tex2html1208"
HREF="node81.html">psb_abort Abort</A>
&nbsp; <B> <A NAME="tex2html1216"
<B> Next:</B> <A NAME="tex2html1216"
HREF="node83.html">psb_max Global</A>
<B> Up:</B> <A NAME="tex2html1212"
HREF="node72.html">Parallel environment routines</A>
<B> Previous:</B> <A NAME="tex2html1206"
HREF="node81.html">psb_bcast Broadcast</A>
&nbsp; <B> <A NAME="tex2html1214"
HREF="node1.html">Contents</A></B>
<BR>
<BR>
<!--End of Navigation Panel-->
<H2><A NAME="SECTION00089000000000000000">
psb_bcast -- Broadcast data</A>
<H2><A NAME="SECTION000810000000000000000">
psb_sum -- Global sum</A>
</H2>
<P>
<PRE>
call psb_bcast(icontxt, dat, root)
call psb_sum(icontxt, dat, root)
</PRE>
<P>
This subroutine implements a broadcast operation based on the
This subroutine implements a sum reduction operation based on the
underlying communication library.
<DL>
<DT><STRONG>Type:</STRONG></DT>
@@ -83,7 +83,7 @@ Intent: <B>in</B>.
Specified as: an integer variable.
</DD>
<DT><STRONG>dat</STRONG></DT>
<DD>On the root process, the data to be broadcast.
<DD>The local contribution to the global sum.
<BR>
Scope: <B>global</B>.
<BR>
@@ -92,11 +92,14 @@ Type: <B>required</B>.
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.
scalar, or a rank 1 or 2 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.
<DD>Process to hold the final sum, or <IMG
WIDTH="24" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
SRC="img83.png"
ALT="$-1$"> to make it available
on all processes.
<BR>
Scope: <B>global</B>.
<BR>
@@ -105,12 +108,12 @@ Type: <B>optional</B>.
Intent: <B>in</B>.
<BR>
Specified as: an integer value <!-- MATH
$0<= root <= np-1$
$-1<= root <= np-1$
-->
<IMG
WIDTH="153" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
WIDTH="165" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
SRC="img129.png"
ALT="$0&lt;= root &lt;= np-1$">, default 0 </DD>
ALT="$-1&lt;= root &lt;= np-1$">, default -1. </DD>
</DL>
<P>
@@ -119,7 +122,7 @@ Specified as: an integer value <!-- MATH
<DD>
</DD>
<DT><STRONG>dat</STRONG></DT>
<DD>On processes other than root, the data to be broadcast.
<DD>On destination process(es), the result of the sum operation.
<BR>
Scope: <B>global</B>.
<BR>
@@ -128,33 +131,47 @@ Type: <B>required</B>.
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.
scalar, or a rank 1 or 2 array.
<BR>
Type, kind, rank and size must agree on all processes.
</DD>
</DL>
<P>
<FONT SIZE="+1"><B>Notes</B></FONT>
<OL>
<LI>The <code>dat</code> argument is both input and output, and its
value may be changed even on processes different from the final
result destination.
</LI>
<LI>The <code>dat</code> argument may also be a long integer scalar.
</LI>
</OL>
<P>
<HR>
<!--Navigation Panel-->
<A NAME="tex2html1217"
<A NAME="tex2html1215"
HREF="node83.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
<A NAME="tex2html1213"
HREF="node73.html">
<A NAME="tex2html1211"
HREF="node72.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
<A NAME="tex2html1207"
<A NAME="tex2html1205"
HREF="node81.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
<A NAME="tex2html1215"
<A NAME="tex2html1213"
HREF="node1.html">
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
<BR>
<B> Next:</B> <A NAME="tex2html1218"
HREF="node83.html">psb_sum Global</A>
<B> Up:</B> <A NAME="tex2html1214"
HREF="node73.html">Parallel environment routines</A>
<B> Previous:</B> <A NAME="tex2html1208"
HREF="node81.html">psb_abort Abort</A>
&nbsp; <B> <A NAME="tex2html1216"
<B> Next:</B> <A NAME="tex2html1216"
HREF="node83.html">psb_max Global</A>
<B> Up:</B> <A NAME="tex2html1212"
HREF="node72.html">Parallel environment routines</A>
<B> Previous:</B> <A NAME="tex2html1206"
HREF="node81.html">psb_bcast Broadcast</A>
&nbsp; <B> <A NAME="tex2html1214"
HREF="node1.html">Contents</A></B>
<!--End of Navigation Panel-->