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Documentation changes. We have barely begun.....
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Salvatore Filippone
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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>get_nnzeros -- Get number of nonzero elements in a sparse matrix</TITLE>
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<H3><A NAME="SECTION00046500000000000000">
get_nnzeros -- Get number of nonzero elements
in a sparse matrix</A>
</H3>
<H1><A NAME="SECTION00050000000000000000">
Computational routines</A>
</H1>
<P>
<PRE>
nr = a%get_nnzeros()
</PRE>
<BR><HR>
<!--Table of Child-Links-->
<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
<P>
<DL>
<DT><STRONG>Type:</STRONG></DT>
<DD>Asynchronous.
</DD>
<DT><STRONG><B>On Entry</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>a</STRONG></DT>
<DD>the sparse matrix
<BR>
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_spmat_type</TT>.
</DD>
</DL>
<P>
<DL>
<DT><STRONG><B>On Return</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>Function value</STRONG></DT>
<DD>The number of nonzero elements stored in sparse matrix <code>a</code>.
</DD>
</DL>
<P>
<B>Notes</B>
<OL>
<LI>The function value is specific to the storage format of matrix
<code>a</code>; some storage formats employ padding, thus the returned
value for the same matrix may be different for different storage choices.
</LI>
</OL>
<P>
<UL>
<LI><A NAME="tex2html492"
HREF="node27.html">psb_geaxpby -- General Dense Matrix Sum</A>
<LI><A NAME="tex2html493"
HREF="node28.html">psb_gedot -- Dot Product</A>
<LI><A NAME="tex2html494"
HREF="node29.html">psb_gedots -- Generalized Dot Product</A>
<LI><A NAME="tex2html495"
HREF="node30.html">psb_geamax -- Infinity-Norm of Vector</A>
<LI><A NAME="tex2html496"
HREF="node31.html">psb_geamaxs -- Generalized Infinity Norm</A>
<LI><A NAME="tex2html497"
HREF="node32.html">psb_geasum -- 1-Norm of Vector</A>
<LI><A NAME="tex2html498"
HREF="node33.html">psb_geasums -- Generalized 1-Norm of Vector</A>
<LI><A NAME="tex2html499"
HREF="node34.html">psb_genrm2 -- 2-Norm of Vector</A>
<LI><A NAME="tex2html500"
HREF="node35.html">psb_genrm2s -- Generalized 2-Norm of Vector</A>
<LI><A NAME="tex2html501"
HREF="node36.html">psb_spnrmi -- Infinity Norm of Sparse Matrix</A>
<LI><A NAME="tex2html502"
HREF="node37.html">psb_spmm -- Sparse Matrix by Dense Matrix Product</A>
<LI><A NAME="tex2html503"
HREF="node38.html">psb_spsm -- Triangular System Solve</A>
</UL>
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