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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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<HEAD>
<TITLE>psb_sizeof -- Memory occupation</TITLE>
<META NAME="description" CONTENT="psb_sizeof -- Memory occupation">
<TITLE>psb_get_overlap -- Extract list of overlap elements</TITLE>
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<H2><A NAME="SECTION000726000000000000000">
psb_sizeof -- Memory occupation</A>
<H2><A NAME="SECTION000724000000000000000">
psb_get_overlap -- Extract list of overlap
elements</A>
</H2>
<P>
This function computes the memory occupation of a PSBLAS object.
<P>
<PRE>
isz = psb_sizeof(a)
isz = psb_sizeof(desc_a)
isz = psb_sizeof(prec)
call psb_get_overlap(ovrel, desc, info)
</PRE>
<P>
@@ -73,54 +69,62 @@ isz = psb_sizeof(prec)
<DT><STRONG><B>On Entry</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>a</STRONG></DT>
<DD>A sparse matrix
<IMG
WIDTH="16" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img1.png"
ALT="$A$">.
<DT><STRONG>desc</STRONG></DT>
<DD>the communication descriptor.
<BR>
Scope: <B>local</B>
Scope:<B>local</B>.
<BR>
Type: <B>required</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a structured data of type spdata<TT>psb_Tspmat_type</TT>.
</DD>
<DT><STRONG>desc_a</STRONG></DT>
<DD>Communication descriptor.
<BR>
Scope: <B>local</B>
<BR>
Type: <B>required</B>
Type:<B>required</B>.
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a structured data of type descdata<TT>psb_desc_type</TT>.
</DD>
<DT><STRONG>prec</STRONG></DT>
<DD>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>
</DL>
<P>
<DL>
<DT><STRONG><B>On Return</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>Function value</STRONG></DT>
<DD>The memory occupation of the object specified in
the calling sequence, in bytes.
<DT><STRONG>ovrel</STRONG></DT>
<DD>The list of overlap elements on the calling process, in
local numbering.
<BR>
Scope: <B>local</B>
<BR>
Returned as: an <code>integer(psb_long_int_k_)</code> number.
Type: <B>required</B>
<BR>
Intent: <B>out</B>.
<BR>
Specified as: a rank one array with the ALLOCATABLE
attribute, of type integer.
<BR></DD>
<DT><STRONG>info</STRONG></DT>
<DD>Error code.
<BR>
Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>out</B>.
<BR>
An integer value; 0 means no error has been detected.
</DD>
</DL>
<P>
<FONT SIZE="+1"><B>Notes</B></FONT>
<OL>
<LI>If there are no overlap elements the output vector is set
to the ``not allocated'' state.
</LI>
<LI>Otherwise the size of <code>ovrel</code> will be exactly equal to the
number of overlap elements.
</LI>
</OL>
<P>
<BR><HR>