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psblas3:

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Updated docs.
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Salvatore Filippone
2014-03-25 11:24:42 +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 -->
<HTML>
<HEAD>
<TITLE>psb_precaply -- Preconditioner application routine</TITLE>
<META NAME="description" CONTENT="psb_precaply -- Preconditioner application routine">
<TITLE>psb_precbld -- Builds a preconditioner</TITLE>
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@@ -20,46 +20,44 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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<H2><A NAME="SECTION000113000000000000000">
psb_precaply -- Preconditioner application
routine</A>
<H2><A NAME="SECTION000112000000000000000">
psb_precbld -- Builds a preconditioner</A>
</H2>
<P>
<PRE>
call psb_precaply(prec,x,y,desc_a,info,trans,work)
call psb_precaply(prec,x,desc_a,info,trans)
call psb_precbld(a, desc_a, prec, info,amold,vmold)
</PRE>
<P>
@@ -70,54 +68,60 @@ call psb_precaply(prec,x,desc_a,info,trans)
<DT><STRONG><B>On Entry</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>a</STRONG></DT>
<DD>the system sparse matrix.
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>in</B>, target.
<BR>
Specified as: a sparse matrix data structure spdata<TT>psb_Tspmat_type</TT>.
</DD>
<DT><STRONG>prec</STRONG></DT>
<DD>the preconditioner.
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a preconditioner data structure precdata<TT>psb_prec_type</TT>.
</DD>
<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: a rank one array or an object of type vdata<TT>psb_T_vect_type</TT>.
</DD>
Specified as: an already initialized precondtioner data structure precdata<TT>psb_prec_type</TT>
<BR></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>.
Intent: <B>in</B>, target.
<BR>
Specified as: a communication data structure descdata<TT>psb_desc_type</TT>.
Specified as: a communication descriptor data structure descdata<TT>psb_desc_type</TT>.
</DD>
<DT><STRONG>trans</STRONG></DT>
<DD>Scope:
<DT><STRONG>amold</STRONG></DT>
<DD>The desired dynamic type for the internal matrix storage.
<BR>
Type: <B>optional</B>
Scope: <B>local</B>.
<BR>
Type: <B>optional</B>.
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a character.
Specified as: an object of a class derived from spbasedata<TT>psb_T_base_sparse_mat</TT>.
</DD>
<DT><STRONG>work</STRONG></DT>
<DD>an optional work space
Scope: <B>local</B>
<DT><STRONG>vmold</STRONG></DT>
<DD>The desired dynamic type for the internal vector storage.
<BR>
Type: <B>optional</B>
Scope: <B>local</B>.
<BR>
Intent: <B>inout</B>.
Type: <B>optional</B>.
<BR>
Specified as: a double precision array.
Intent: <B>in</B>.
<BR>
Specified as: an object of a class derived from vbasedata<TT>psb_T_base_vect_type</TT>.
<P>
</DD>
</DL>
@@ -126,16 +130,17 @@ Specified as: a double precision array.
<DT><STRONG><B>On Return</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>y</STRONG></DT>
<DD>the destination vector.
<DT><STRONG>prec</STRONG></DT>
<DD>the preconditioner.
<BR>
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: a rank one array or an object of type vdata<TT>psb_T_vect_type</TT>.
</DD>
Specified as: a precondtioner data structure precdata<TT>psb_prec_type</TT>
<BR></DD>
<DT><STRONG>info</STRONG></DT>
<DD>Error code.
<BR>