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psblas3:
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Salvatore Filippone
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@@ -7,8 +7,8 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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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>psb_spfree -- Frees a sparse matrix</TITLE>
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<META NAME="description" CONTENT="psb_spfree -- Frees a sparse matrix">
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<TITLE>psb_spasb -- Sparse matrix assembly routine</TITLE>
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<META NAME="description" CONTENT="psb_spasb -- Sparse matrix assembly routine">
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<META NAME="keywords" CONTENT="userhtml">
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<META NAME="resource-type" CONTENT="document">
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<META NAME="distribution" CONTENT="global">
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@@ -20,44 +20,44 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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<BR>
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<B> Next:</B> <A NAME="tex2html1032"
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HREF="node66.html">psb_sprn Reinit</A>
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<B> Up:</B> <A NAME="tex2html1028"
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HREF="node55.html">Data management routines</A>
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<B> Previous:</B> <A NAME="tex2html1022"
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HREF="node64.html">psb_spasb Sparse</A>
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<B> <A NAME="tex2html1030"
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<B> Next:</B> <A NAME="tex2html1033"
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HREF="node66.html">psb_spfree Frees</A>
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<B> Up:</B> <A NAME="tex2html1029"
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HREF="node56.html">Data management routines</A>
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<B> Previous:</B> <A NAME="tex2html1023"
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HREF="node64.html">psb_spins Insert</A>
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<B> <A NAME="tex2html1031"
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HREF="node1.html">Contents</A></B>
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<BR>
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<BR>
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<!--End of Navigation Panel-->
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<H2><A NAME="SECTION000710000000000000000">
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psb_spfree -- Frees a sparse matrix</A>
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<H2><A NAME="SECTION00079000000000000000">
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psb_spasb -- Sparse matrix assembly routine</A>
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</H2>
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<P>
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<PRE>
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call psb_spfree(a, desc_a, info)
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call psb_spasb(a, desc_a, info, afmt, upd, dupl, mold)
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</PRE>
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<P>
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@@ -68,17 +68,6 @@ call psb_spfree(a, desc_a, info)
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<DT><STRONG><B>On Entry</B></STRONG></DT>
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<DD>
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</DD>
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<DT><STRONG>a</STRONG></DT>
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<DD>the matrix to be freed.
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<BR>
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Scope:<B>local</B>
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<BR>
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Type:<B>required</B>
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<BR>
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Intent: <B>inout</B>.
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<BR>
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Specified as: a structured data of type spdata<TT>psb_Tspmat_type</TT>.
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</DD>
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<DT><STRONG>desc_a</STRONG></DT>
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<DD>the communication descriptor.
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<BR>
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@@ -90,6 +79,51 @@ Intent: <B>in</B>.
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<BR>
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Specified as: a structured data of type descdata<TT>psb_desc_type</TT>.
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</DD>
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<DT><STRONG>afmt</STRONG></DT>
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<DD>the storage format for the sparse matrix.
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<BR>
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Scope: <B>local</B>.
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<BR>
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Type: <B>optional</B>.
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: an array of characters. Defalt: 'CSR'.
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</DD>
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<DT><STRONG>upd</STRONG></DT>
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<DD>Provide for updates to the matrix coefficients.
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<BR>
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Scope: <B>global</B>.
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<BR>
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Type: <B>optional</B>.
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: integer, possible values: <code>psb_upd_srch_</code>, <code>psb_upd_perm_</code>
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</DD>
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<DT><STRONG>dupl</STRONG></DT>
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<DD>How to handle duplicate coefficients.
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<BR>
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Scope: <B>global</B>.
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<BR>
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Type: <B>optional</B>.
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: integer, possible values: <code>psb_dupl_ovwrt_</code>,
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<code>psb_dupl_add_</code>, <code>psb_dupl_err_</code>.
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</DD>
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<DT><STRONG>mold</STRONG></DT>
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<DD>The desired dynamic type for the internal matrix storage.
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<BR>
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Scope: <B>local</B>.
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<BR>
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Type: <B>optional</B>.
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: an object of a class derived from spbasedata<TT>psb_T_base_sparse_mat</TT>.
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</DD>
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</DL>
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<P>
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@@ -97,6 +131,17 @@ Specified as: a structured data of type descdata<TT>psb_desc_type</TT>.
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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>a</STRONG></DT>
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<DD>the matrix to be assembled.
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<BR>
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Scope:<B>local</B>
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<BR>
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Type:<B>required</B>
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<BR>
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Intent: <B>inout</B>.
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<BR>
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Specified as: a structured data of type spdata<TT>psb_Tspmat_type</TT>.
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</DD>
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<DT><STRONG>info</STRONG></DT>
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<DD>Error code.
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<BR>
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@@ -111,7 +156,56 @@ An integer value; 0 means no error has been detected.
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</DL>
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<P>
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<BR><HR>
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<FONT SIZE="+1"><B>Notes</B></FONT>
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<OL>
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<LI>On entry to this routine the descriptor must be in the
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assembled state, i.e. <code>psb_cdasb</code> must already have been called.
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</LI>
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<LI>The sparse matrix may be in either the build or update state;
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</LI>
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<LI>Duplicate entries are detected and handled in both build and
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update state, with the exception of the error action that is only
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taken in the build state, i.e. on the first assembly;
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</LI>
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<LI>If the update choice is <code>psb_upd_perm_</code>, then subsequent
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calls to <code>psb_spins</code> to update the matrix must be arranged in
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such a way as to produce exactly the same sequence of coefficient
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values as encountered at the first assembly;
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</LI>
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<LI>The output storage format need not be the same on all
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processes;
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</LI>
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<LI>On exit from this routine the matrix is in the assembled state,
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and thus is suitable for the computational routines.
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</LI>
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</OL>
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<P>
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HREF="node66.html">psb_spfree Frees</A>
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