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<H3><A NAME="SECTION00046500000000000000">
get_nnzeros -- Get number of nonzero elements
in a sparse matrix</A>
</H3>
<P>
<PRE>
nr = a%get_nnzeros()
</PRE>
<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>
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