You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
201 lines
5.4 KiB
HTML
201 lines
5.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
|
|
|
<!--Converted with LaTeX2HTML 2012 (1.2)
|
|
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_cdbldext -- Build an extended communication descriptor</TITLE>
|
|
<META NAME="description" CONTENT="psb_cdbldext -- Build an extended communication descriptor">
|
|
<META NAME="keywords" CONTENT="userhtml">
|
|
<META NAME="resource-type" CONTENT="document">
|
|
<META NAME="distribution" CONTENT="global">
|
|
|
|
<META NAME="Generator" CONTENT="LaTeX2HTML v2012">
|
|
<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css">
|
|
|
|
<LINK REL="STYLESHEET" HREF="userhtml.css">
|
|
|
|
<LINK REL="next" HREF="node75.html">
|
|
<LINK REL="previous" HREF="node73.html">
|
|
<LINK REL="up" HREF="node68.html">
|
|
<LINK REL="next" HREF="node75.html">
|
|
</HEAD>
|
|
|
|
<BODY >
|
|
<!--Navigation Panel-->
|
|
<A NAME="tex2html1178"
|
|
HREF="node75.html">
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
|
|
<A NAME="tex2html1174"
|
|
HREF="node68.html">
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
|
|
<A NAME="tex2html1168"
|
|
HREF="node73.html">
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
|
|
<A NAME="tex2html1176"
|
|
HREF="node1.html">
|
|
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
|
|
<BR>
|
|
<B> Next:</B> <A NAME="tex2html1179"
|
|
HREF="node75.html">psb_spall Allocates</A>
|
|
<B> Up:</B> <A NAME="tex2html1175"
|
|
HREF="node68.html">Data management routines</A>
|
|
<B> Previous:</B> <A NAME="tex2html1169"
|
|
HREF="node73.html">psb_cdfree Frees</A>
|
|
<B> <A NAME="tex2html1177"
|
|
HREF="node1.html">Contents</A></B>
|
|
<BR>
|
|
<BR>
|
|
<!--End of Navigation Panel-->
|
|
|
|
<H2><A NAME="SECTION00076000000000000000">
|
|
psb_cdbldext -- Build an extended communication
|
|
descriptor</A>
|
|
</H2>
|
|
|
|
<P>
|
|
<PRE>
|
|
call psb_cdbldext(a,desc_a,nl,desc_out, info, extype)
|
|
</PRE>
|
|
|
|
<P>
|
|
This subroutine builds an extended communication descriptor, based on
|
|
the input descriptor <code>desc_a</code> and on the stencil specified
|
|
through the input sparse matrix <code>a</code>.
|
|
<DL>
|
|
<DT><STRONG>Type:</STRONG></DT>
|
|
<DD>Synchronous.
|
|
</DD>
|
|
<DT><STRONG><B>On Entry</B></STRONG></DT>
|
|
<DD>
|
|
</DD>
|
|
<DT><STRONG>a</STRONG></DT>
|
|
<DD>A sparse matrix
|
|
Scope:<B>local</B>.
|
|
<BR>
|
|
Type:<B>required</B>.
|
|
<BR>
|
|
Intent: <B>in</B>.
|
|
<BR>
|
|
Specified as: a structured data type.
|
|
</DD>
|
|
<DT><STRONG>desc_a</STRONG></DT>
|
|
<DD>the communication descriptor.
|
|
<BR>
|
|
Scope:<B>local</B>.
|
|
<BR>
|
|
Type:<B>required</B>.
|
|
<BR>
|
|
Intent: <B>in</B>.
|
|
<BR>
|
|
Specified as: a structured data of type spdata<TT>psb_Tspmat_type</TT>.
|
|
</DD>
|
|
<DT><STRONG>nl</STRONG></DT>
|
|
<DD>the number of additional layers desired.
|
|
<BR>
|
|
Scope:<B>global</B>.
|
|
<BR>
|
|
Type:<B>required</B>.
|
|
<BR>
|
|
Intent: <B>in</B>.
|
|
<BR>
|
|
Specified as: an integer value <IMG
|
|
WIDTH="47" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
|
|
SRC="img102.png"
|
|
ALT="$nl\ge 0$">.
|
|
</DD>
|
|
<DT><STRONG>extype</STRONG></DT>
|
|
<DD>the kind of estension required.
|
|
<BR>
|
|
Scope:<B>global</B>.
|
|
<BR>
|
|
Type:<B>optional </B>.
|
|
<BR>
|
|
Intent: <B>in</B>.
|
|
<BR>
|
|
Specified as: an integer value
|
|
<code>psb_ovt_xhal_</code>, <code>psb_ovt_asov_</code>, default: <code>psb_ovt_xhal_</code>
|
|
|
|
<P>
|
|
</DD>
|
|
</DL>
|
|
|
|
<P>
|
|
<DL>
|
|
<DT><STRONG><B>On Return</B></STRONG></DT>
|
|
<DD>
|
|
</DD>
|
|
<DT><STRONG>desc_out</STRONG></DT>
|
|
<DD>the extended communication descriptor.
|
|
<BR>
|
|
Scope:<B>local</B>.
|
|
<BR>
|
|
Type:<B>required</B>.
|
|
<BR>
|
|
Intent: <B>inout</B>.
|
|
<BR>
|
|
Specified as: a structured data of type descdata<TT>psb_desc_type</TT>.
|
|
</DD>
|
|
<DT><STRONG>info</STRONG></DT>
|
|
<DD>Error code.
|
|
<BR>
|
|
Scope: <B>local</B>
|
|
<BR>
|
|
Type: <B>required</B>
|
|
<BR>
|
|
Intent: <B>out</B>.
|
|
<BR>
|
|
An integer value; 0 means no error has been detected.
|
|
</DD>
|
|
</DL>
|
|
|
|
<P>
|
|
<FONT SIZE="+1"><B>Notes</B></FONT>
|
|
|
|
<OL>
|
|
<LI>Specifying <code>psb_ovt_xhal_</code> for the <code>extype</code> argument
|
|
the user will obtain a descriptor for a domain partition in which
|
|
the additional layers are fetched as part of an (extended) halo;
|
|
however the index-to-process mapping is identical to that of the
|
|
base descriptor;
|
|
</LI>
|
|
<LI>Specifying <code>psb_ovt_asov_</code> for the <code>extype</code> argument
|
|
the user will obtain a descriptor with an overlapped decomposition:
|
|
the additional layer is aggregated to the local subdomain (and thus
|
|
is an overlap), and a new halo extending beyond the last additional
|
|
layer is formed.
|
|
</LI>
|
|
</OL>
|
|
|
|
<P>
|
|
<HR>
|
|
<!--Navigation Panel-->
|
|
<A NAME="tex2html1178"
|
|
HREF="node75.html">
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
|
|
<A NAME="tex2html1174"
|
|
HREF="node68.html">
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
|
|
<A NAME="tex2html1168"
|
|
HREF="node73.html">
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
|
|
<A NAME="tex2html1176"
|
|
HREF="node1.html">
|
|
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
|
|
<BR>
|
|
<B> Next:</B> <A NAME="tex2html1179"
|
|
HREF="node75.html">psb_spall Allocates</A>
|
|
<B> Up:</B> <A NAME="tex2html1175"
|
|
HREF="node68.html">Data management routines</A>
|
|
<B> Previous:</B> <A NAME="tex2html1169"
|
|
HREF="node73.html">psb_cdfree Frees</A>
|
|
<B> <A NAME="tex2html1177"
|
|
HREF="node1.html">Contents</A></B>
|
|
<!--End of Navigation Panel-->
|
|
|
|
</BODY>
|
|
</HTML>
|