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Document DESC%CNV method and MOLD arguments to CDASB and PREC%BUILD
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Salvatore Filippone
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original version by: Nikos Drakos, CBLU, University of Leeds
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* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
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* with significant contributions from:
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Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
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<HTML>
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<HEAD>
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<TITLE>csclip -- Reduce to a submatrix</TITLE>
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<META NAME="description" CONTENT="csclip -- Reduce to a submatrix">
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<TITLE>cscnv -- Convert to a different storage format</TITLE>
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HREF="node34.html">clean_zeros Eliminate</A>
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<H3><A NAME="SECTION000421100000000000000">
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csclip -- Reduce to a submatrix</A>
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<H3><A NAME="SECTION000421000000000000000">
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cscnv -- Convert to a different storage format</A>
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</H3>
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<P>
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<PRE>
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call a%csclip(b,info[,&
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& imin,imax,jmin,jmax,rscale,cscale])
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call a%cscnv(b,info [, type, mold, dupl])
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call a%cscnv(info [, type, mold, dupl])
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</PRE>
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<P>
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Returns the submatrix <code>A(imin:imax,jmin:jmax)</code>, optionally
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rescaling row/col indices to the range
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<code>1:imax-imin+1,1:jmax-jmin+1</code>.
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<DL>
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<DT><STRONG>Type:</STRONG></DT>
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<DD>Asynchronous.
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@@ -78,22 +73,29 @@ A variable of type <code>psb_Tspmat_type</code>.
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<BR>
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Scope: <B>local</B>.
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<BR></DD>
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<DT><STRONG>imin,imax,jmin,jmax</STRONG></DT>
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<DD>Minimum and maximum row and column indices.
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<DT><STRONG>type</STRONG></DT>
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<DD>a string requesting a new format.
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<BR>
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Type: optional.
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</DD>
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<DT><STRONG>rscale,cscale</STRONG></DT>
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<DD>Whether to rescale row/column indices.
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<DT><STRONG>mold</STRONG></DT>
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<DD>a variable of <code>class(psb_T_base_sparse_mat)</code> requesting a new format.
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<BR>
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Type: optional.
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</DD>
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<DT><STRONG>dupl</STRONG></DT>
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<DD>an integer value specifing how to handle duplicates (see
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Named Constants below)
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</DD>
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</DL>
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<P>
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<DL>
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<DT><STRONG><B>On Return</B></STRONG></DT>
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<DD>
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</DD>
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<DT><STRONG>b</STRONG></DT>
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<DD>A copy of a submatrix of <code>a</code>.
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<DT><STRONG>b,a</STRONG></DT>
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<DD>A copy of <code>a</code> with a new storage format.
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<BR>
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A variable of type <code>psb_Tspmat_type</code>.
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</DD>
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@@ -101,6 +103,9 @@ A variable of type <code>psb_Tspmat_type</code>.
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<DD>Return code.
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</DD>
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</DL>
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The <code>mold</code> arguments may be
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employed to interface with special devices, such as GPUs and other
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accelerators.
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<P>
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<BR><HR>
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