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Documentation changes. We have barely begun.....
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Salvatore Filippone
2011-12-16 16:45:25 +00:00
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@@ -7,8 +7,8 @@ original version by: Nikos Drakos, CBLU, University of Leeds
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
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<TITLE>psb_cdins -- Communication descriptor insert routine</TITLE>
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<TITLE>psb_cdasb -- Communication descriptor assembly routine</TITLE>
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@@ -20,98 +20,64 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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<H2><A NAME="SECTION00072000000000000000">
psb_cdins -- Communication descriptor insert routine</A>
<H2><A NAME="SECTION00073000000000000000">
psb_cdasb -- Communication descriptor assembly routine</A>
</H2>
<P>
<PRE>
call psb_cdins(nz, ia, ja, desc_a, info)
call psb_cdasb(desc_a, info)
</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.
<P>
<DL>
<DT><STRONG>Type:</STRONG></DT>
<DD>Asynchronous.
<DD>Synchronous.
</DD>
<DT><STRONG><B>On Entry</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>nz</STRONG></DT>
<DD>the number of points being inserted.
<DT><STRONG>desc_a</STRONG></DT>
<DD>the communication descriptor.
<BR>
Scope: <B>local</B>.
Scope:<B>local</B>.
<BR>
Type: <B>required</B>.
Type:<B>required</B>.
<BR>
Intent: <B>in</B>.
Intent: <B>inout</B>.
<BR>
Specified as: an integer value.
</DD>
<DT><STRONG>ia</STRONG></DT>
<DD>the indices of the starting vertex of the edges being inserted.
<BR>
Scope: <B>local</B>.
<BR>
Type: <B>required</B>.
<BR>
Intent: <B>in</B>.
<BR>
Specified as: an integer array of length <IMG
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img101.png"
ALT="$nz$">.
</DD>
<DT><STRONG>ja</STRONG></DT>
<DD>the indices of the end vertex of the edges being inserted.
<BR>
Scope: <B>local</B>.
<BR>
Type: <B>required</B>.
<BR>
Intent: <B>in</B>.
<BR>
Specified as: an integer array of length <IMG
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img101.png"
ALT="$nz$">.
Specified as: a structured data of type descdata<TT>psb_desc_type</TT>.
</DD>
</DL>
@@ -121,7 +87,7 @@ Specified as: an integer array of length <IMG
<DD>
</DD>
<DT><STRONG>desc_a</STRONG></DT>
<DD>the updated communication descriptor.
<DD>the communication descriptor.
<BR>
Scope:<B>local</B>.
<BR>
@@ -146,40 +112,13 @@ An integer value; 0 means no error has been detected.
<FONT SIZE="+1"><B>Notes</B></FONT>
<OL>
<LI>This routine may only be called if the descriptor is in the
build state;
</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.
<LI>On exit from this routine the descriptor is in the assembled
state.
</LI>
</OL>
<P>
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