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Added entrywise inversion and documentation for vec-vec operation

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2019-11-21 13:56:22 +01:00
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<!--Converted with LaTeX2HTML 2018 (Released Feb 1, 2018) -->
<HTML>
<HEAD>
<TITLE>psb_geasb -- Assembly a dense matrix</TITLE>
<META NAME="description" CONTENT="psb_geasb -- Assembly a dense matrix">
<TITLE>psb_sprn -- Reinit sparse matrix structure for psblas routines.</TITLE>
<META NAME="description" CONTENT="psb_sprn -- Reinit sparse matrix structure for psblas routines.">
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<H2><A NAME="SECTION000714000000000000000">
psb_geasb -- Assembly a dense matrix</A>
<H2><A NAME="SECTION000711000000000000000">
psb_sprn -- Reinit sparse matrix structure for psblas
routines.</A>
</H2>
<P>
<PRE>
call psb_geasb(x, desc_a, info, mold)
call psb_sprn(a, decsc_a, info, clear)
</PRE>
<P>
@@ -65,31 +66,38 @@ call psb_geasb(x, desc_a, info, mold)
<DT><STRONG><B>On Entry</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>a</STRONG></DT>
<DD>the matrix to be reinitialized.
<BR>
Scope:<B>local</B>
<BR>
Type:<B>required</B>
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: a structured data of type spdata<TT>psb_Tspmat_type</TT>.
</DD>
<DT><STRONG>desc_a</STRONG></DT>
<DD>The communication descriptor.
<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>.
<BR>
Specified as: a variable of type descdata<TT>psb_desc_type</TT>.
<BR></DD>
<DT><STRONG>mold</STRONG></DT>
<DD>The desired dynamic type for the internal vector storage.
Specified as: a structured data of type descdata<TT>psb_desc_type</TT>.
</DD>
<DT><STRONG>clear</STRONG></DT>
<DD>Choose whether to zero out matrix coefficients
<BR>
Scope: <B>local</B>.
Scope:<B>local</B>.
<BR>
Type: <B>optional</B>.
Type:<B>optional</B>.
<BR>
Intent: <B>in</B>.
<BR>
Specified as: an object of a class derived from vbasedata<TT>psb_T_base_vect_type</TT>; this is
only allowed when <SPAN CLASS="MATH"><IMG
WIDTH="13" HEIGHT="13" ALIGN="BOTTOM" BORDER="0"
SRC="img20.png"
ALT="$x$"></SPAN> is of type vdata<TT>psb_T_vect_type</TT>.
Default: true.
</DD>
</DL>
@@ -98,18 +106,6 @@ only allowed when <SPAN CLASS="MATH"><IMG
<DT><STRONG><B>On Return</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>x</STRONG></DT>
<DD>The dense matrix to be assembled.
<BR>
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: a rank one or two array with the ALLOCATABLE or an
object of type vdata<TT>psb_T_vect_type</TT>, of type real, complex or integer.
<BR></DD>
<DT><STRONG>info</STRONG></DT>
<DD>Error code.
<BR>
@@ -122,6 +118,15 @@ Intent: <B>out</B>.
An integer value; 0 means no error has been detected.
</DD>
</DL>
<BIG CLASS="LARGE"><B>Notes</B></BIG>
<OL>
<LI>On exit from this routine the sparse matrix is in the update
state.
</LI>
</OL>
<P>
<BR><HR>
</BODY>