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Towards the "official" 3.0 release: 
1. fixed minor interface problem with LIDX in cdins.
2. Updated docs with  cross-references for usage of LIDX/LOCAL.
This commit is contained in:
Salvatore Filippone
2012-05-04 12:05:16 +00:00
parent b2fefa9204
commit 05ed51b1a4
198 changed files with 3654 additions and 3510 deletions
+81 -13
View File
@@ -57,14 +57,27 @@ psb_cdins -- Communication descriptor insert routine</A>
<P>
<PRE>
call psb_cdins(nz, ia, ja, desc_a, info)
call psb_cdins(nz, ia, ja, desc_a, info [,ila,jla])
call psb_cdins(nz,ja,desc,info[,jla,mask,lidx])
</PRE>
<P>
This subroutine examines the edges of the graph associated with the
discretization mesh (and isomorphic to the sparsity pattern of a
linear system coefficient matrix), storing them as necessary into the
communication descriptor.
communication descriptor. In the first form the edges are specified as
pairs of indices <IMG
WIDTH="76" HEIGHT="32" ALIGN="MIDDLE" BORDER="0"
SRC="img95.png"
ALT="$ia(i),ja(i)$">; the starting index <IMG
WIDTH="36" HEIGHT="32" ALIGN="MIDDLE" BORDER="0"
SRC="img96.png"
ALT="$ia(i)$"> should
belong to the current process.
In the second form only the remote indices <IMG
WIDTH="37" HEIGHT="32" ALIGN="MIDDLE" BORDER="0"
SRC="img97.png"
ALT="$ja(i)$"> are specified.
<P>
<DL>
@@ -95,8 +108,8 @@ Type: <B>required</B>.
Intent: <B>in</B>.
<BR>
Specified as: an integer array of length <IMG
WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" BORDER="0"
SRC="img95.png"
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img98.png"
ALT="$nz$">.
</DD>
<DT><STRONG>ja</STRONG></DT>
@@ -109,8 +122,37 @@ Type: <B>required</B>.
Intent: <B>in</B>.
<BR>
Specified as: an integer array of length <IMG
WIDTH="22" HEIGHT="13" ALIGN="BOTTOM" BORDER="0"
SRC="img95.png"
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img98.png"
ALT="$nz$">.
</DD>
<DT><STRONG>mask</STRONG></DT>
<DD>Mask entries in <code>ja</code>, they are inserted only when the
corresponding <code>mask</code> entries are <code>.true.</code>
<BR>
Scope: <B>local</B>.
<BR>
Type: <B>optional</B>.
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a logical array of length <IMG
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img98.png"
ALT="$nz$">, default <code>.true.</code>.
</DD>
<DT><STRONG>lidx</STRONG></DT>
<DD>User defined local indices for <code>ja</code>.
<BR>
Scope: <B>local</B>.
<BR>
Type: <B>optional</B>.
<BR>
Intent: <B>in</B>.
<BR>
Specified as: an integer array of length <IMG
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img98.png"
ALT="$nz$">.
</DD>
</DL>
@@ -142,6 +184,36 @@ Intent: <B>out</B>.
<BR>
An integer value; 0 means no error has been detected.
</DD>
<DT><STRONG>ila</STRONG></DT>
<DD>the local indices of the starting vertex of the edges being inserted.
<BR>
Scope: <B>local</B>.
<BR>
Type: <B>optional</B>.
<BR>
Intent: <B>out</B>.
<BR>
Specified as: an integer array of length <IMG
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img98.png"
ALT="$nz$">.
</DD>
<DT><STRONG>jla</STRONG></DT>
<DD>the local indices of the end vertex of the edges being inserted.
<BR>
Scope: <B>local</B>.
<BR>
Type: <B>optional</B>.
<BR>
Intent: <B>out</B>.
<BR>
Specified as: an integer array of length <IMG
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img98.png"
ALT="$nz$">.
<P>
</DD>
</DL>
<FONT SIZE="+1"><B>Notes</B></FONT>
@@ -151,14 +223,10 @@ An integer value; 0 means no error has been detected.
</LI>
<LI>This routine automatically ignores edges that do not
insist on the current process, i.e. edges for which neither the starting
nor the end vertex belong to the current process.
nor the end vertex belong to the current process.
</LI>
<LI>There exists another interface for this routine
<PRE>
call psb_cdins(nz, ja, desc_a, info)
</PRE>
which will digest all entries in <code>ja</code> and add them to the
communication requirements.
<LI>The second form of this routine will be useful when dealing with
user-specified index mappings; see also&nbsp;<A HREF="node7.html#sec:usermaps">2.3.1</A>.
</LI>
</OL>