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Documentation changes. We have barely begun.....
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Salvatore Filippone
2011-12-16 16:45:25 +00:00
parent c730f15b58
commit 844a942947
243 changed files with 14860 additions and 15182 deletions
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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 -->
<HTML>
<HEAD>
<TITLE>psb_precbld -- Builds a preconditioner</TITLE>
<META NAME="description" CONTENT="psb_precbld -- Builds a preconditioner">
<TITLE>psb_precaply -- Preconditioner application routine</TITLE>
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@@ -20,44 +20,45 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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<H2><A NAME="SECTION000112000000000000000">
psb_precbld -- Builds a preconditioner</A>
<H2><A NAME="SECTION000113000000000000000">
psb_precaply -- Preconditioner application routine</A>
</H2>
<P>
<PRE>
call psb_precbld(a, desc_a, prec, info)
call psb_precaply(prec,x,y,desc_a,info,trans,work)
call psb_precaply(prec,x,desc_a,info,trans)
</PRE>
<P>
@@ -68,36 +69,54 @@ call psb_precbld(a, desc_a, prec, info)
<DT><STRONG><B>On Entry</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>a</STRONG></DT>
<DD>the system sparse matrix.
<DT><STRONG>prec</STRONG></DT>
<DD>the preconditioner.
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>in</B>, target.
Intent: <B>in</B>.
<BR>
Specified as: a sparse matrix data structure spdata<TT>psb_spmat_type</TT>.
Specified as: a preconditioner data structure precdata<TT>psb_prec_type</TT>.
</DD>
<DT><STRONG>prec</STRONG></DT>
<DD>the preconditioner.
<BR>
<DT><STRONG>x</STRONG></DT>
<DD>the source vector.
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: an already initialized precondtioner data structure precdata<TT>psb_prec_type</TT>
<BR></DD>
Specified as: a double precision array.
</DD>
<DT><STRONG>desc_a</STRONG></DT>
<DD>the problem communication descriptor.
<DD>the problem communication descriptor.
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>in</B>, target.
Intent: <B>in</B>.
<BR>
Specified as: a communication descriptor data structure descdata<TT>psb_desc_type</TT>.
Specified as: a communication data structure descdata<TT>psb_desc_type</TT>.
</DD>
<DT><STRONG>trans</STRONG></DT>
<DD>Scope:
<BR>
Type: <B>optional</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a character.
</DD>
<DT><STRONG>work</STRONG></DT>
<DD>an optional work space
Scope: <B>local</B>
<BR>
Type: <B>optional</B>
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: a double precision array.
</DD>
</DL>
@@ -106,17 +125,16 @@ Specified as: a communication descriptor data structure descdata<TT>psb_desc_typ
<DT><STRONG><B>On Return</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>prec</STRONG></DT>
<DD>the preconditioner.
<BR>
<DT><STRONG>y</STRONG></DT>
<DD>the destination vector.
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: a precondtioner data structure precdata<TT>psb_prec_type</TT>
<BR></DD>
Specified as: a double precision array.
</DD>
<DT><STRONG>info</STRONG></DT>
<DD>Error code.
<BR>