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188 lines
8.6 KiB
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188 lines
8.6 KiB
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<!--l. 685--><div class="crosslinks"><p class="noindent"><span
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class="cmr-12">[</span><a
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href="userhtmlsu11.html" ><span
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class="cmr-12">] </span></p></div>
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<h4 class="subsectionHead"><span class="titlemark"><span
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class="cmr-12">5.3 </span></span> <a
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id="x20-190005.3"></a><span
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class="cmr-12">Method hierarchy</span><span
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class="cmr-12">_build</span></h4>
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<div class="center"
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>
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<!--l. 687--><p class="noindent" >
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<!--l. 688--><p class="noindent" ><span class="lstinline"></span><span
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class="cmtt-12">call</span><span
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class="cmtt-12"> </span><span
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class="cmtt-12">p</span><span
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class="cmtt-12">%</span><span
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class="cmtt-12">hierarchy_build</span><span
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class="cmtt-12">(</span><span
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class="cmtt-12">a</span><span
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class="cmtt-12">,</span><span
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class="cmtt-12">desc_a</span><span
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class="cmtt-12">,</span><span
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class="cmtt-12">info</span><span
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class="cmtt-12">)</span><br />
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</div>
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<!--l. 691--><p class="noindent" ><span
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class="cmr-12">This method builds the hierarchy of matrices and restriction/prolongation operators for</span>
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<span
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class="cmr-12">the multilevel preconditioner </span><span class="lstinline"></span><span
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class="cmtt-12">p</span><span
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class="cmr-12">, according to the requirements made by the user</span>
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<span
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class="cmr-12">through the methods </span><span class="lstinline"></span><span
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class="cmtt-12">init</span> <span
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class="cmr-12">and </span><span class="lstinline"></span><span
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class="cmtt-12">set</span><span
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class="cmr-12">.</span>
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<!--l. 696--><p class="noindent" ><span
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class="cmbx-12">Arguments</span>
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<div class="tabular"> <table id="TBL-11" class="tabular"
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cellspacing="0" cellpadding="0"
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><colgroup id="TBL-11-1g"><col
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id="TBL-11-1"><col
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id="TBL-11-2"></colgroup><tr
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style="vertical-align:baseline;" id="TBL-11-1-"><td style="white-space:normal; text-align:left;" id="TBL-11-1-1"
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class="td11"><!--l. 699--><p class="noindent" ><span class="lstinline"></span><span
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class="cmtt-12">a</span> </td><td style="white-space:normal; text-align:left;" id="TBL-11-1-2"
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class="td11"><!--l. 699--><p class="noindent" ><span class="lstinline"></span><span
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class="cmtt-12">type</span><span
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class="cmtt-12">(</span><span
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class="cmtt-12">psb_</span><span
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class="cmti-12">x</span><span class="lstinline"></span><span
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class="cmtt-12">spmat_type</span><span
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class="cmtt-12">),</span><span
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class="cmtt-12"> </span><span
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class="cmtt-12">intent</span><span
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class="cmtt-12">(</span><span
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class="cmtt-12">in</span><span
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class="cmtt-12">)</span><span
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class="cmr-12">.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-11-2-"><td style="white-space:normal; text-align:left;" id="TBL-11-2-1"
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class="td11"><!--l. 700--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-11-2-2"
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class="td11"><!--l. 700--><p class="noindent" ><span
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class="cmr-12">The sparse matrix structure containing the local part of the matrix</span>
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<span
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class="cmr-12">to be preconditioned. Note that </span><span
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class="cmti-12">x </span><span
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class="cmr-12">must be chosen according to the</span>
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<span class="lstinline"></span><span
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class="cmtt-12">real</span><span
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class="cmr-12">/</span><span class="lstinline"></span><span
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class="cmtt-12">complex</span><span
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class="cmr-12">, single/double precision version of AMG4PSBLAS</span>
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<span
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class="cmr-12">under use. See the PSBLAS User’s Guide for details </span><span class="cite"><span
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class="cmr-12">[</span><a
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href="userhtmlli5.html#XPSBLASGUIDE"><span
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class="cmr-12">20</span></a><span
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class="cmr-12">]</span></span><span
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class="cmr-12">.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-11-3-"><td style="white-space:normal; text-align:left;" id="TBL-11-3-1"
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class="td11"><!--l. 705--><p class="noindent" ><span class="lstinline"></span><span
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class="cmtt-12">desc_a</span></td><td style="white-space:normal; text-align:left;" id="TBL-11-3-2"
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class="td11"><!--l. 705--><p class="noindent" ><span class="lstinline"></span><span
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class="cmtt-12">type</span><span
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class="cmtt-12">(</span><span
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class="cmtt-12">psb_desc_type</span><span
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class="cmtt-12">),</span><span
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class="cmtt-12"> </span><span
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class="cmtt-12">intent</span><span
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class="cmtt-12">(</span><span
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class="cmtt-12">in</span><span
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class="cmtt-12">)</span><span
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class="cmr-12">.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-11-4-"><td style="white-space:normal; text-align:left;" id="TBL-11-4-1"
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class="td11"><!--l. 706--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-11-4-2"
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class="td11"><!--l. 706--><p class="noindent" ><span
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class="cmr-12">The communication descriptor of </span><span class="lstinline"></span><span
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class="cmtt-12">a</span><span
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class="cmr-12">. See the PSBLAS User’s Guide</span>
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<span
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class="cmr-12">for details </span><span class="cite"><span
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class="cmr-12">[</span><a
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href="userhtmlli5.html#XPSBLASGUIDE"><span
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class="cmr-12">20</span></a><span
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class="cmr-12">]</span></span><span
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class="cmr-12">.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-11-5-"><td style="white-space:normal; text-align:left;" id="TBL-11-5-1"
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class="td11"><!--l. 708--><p class="noindent" ><span class="lstinline"></span><span
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class="cmtt-12">info</span> </td><td style="white-space:normal; text-align:left;" id="TBL-11-5-2"
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class="td11"><!--l. 708--><p class="noindent" ><span class="lstinline"></span><span
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class="cmtt-12">integer</span><span
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class="cmtt-12">,</span><span
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class="cmtt-12"> </span><span
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class="cmtt-12">intent</span><span
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class="cmtt-12">(</span><span
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class="cmtt-12">out</span><span
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class="cmtt-12">)</span><span
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class="cmr-12">.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-11-6-"><td style="white-space:normal; text-align:left;" id="TBL-11-6-1"
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class="td11"><!--l. 709--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-11-6-2"
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class="td11"><!--l. 709--><p class="noindent" ><span
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class="cmr-12">Error code. If no error, 0 is returned. See Section</span><span
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class="cmr-12"> </span><a
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href="userhtmlse7.html#x28-320007"><span
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class="cmr-12">7</span><!--tex4ht:ref: sec:errors --></a> <span
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class="cmr-12">for details.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-11-7-"><td style="white-space:normal; text-align:left;" id="TBL-11-7-1"
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class="td11"> </td> </tr></table></div>
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<!--l. 715--><div class="crosslinks"><p class="noindent"><span
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class="cmr-12">[</span><a
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href="userhtmlsu11.html" ><span
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class="cmr-12">next</span></a><span
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class="cmr-12">] [</span><a
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href="userhtmlsu9.html" ><span
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class="cmr-12">prev</span></a><span
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class="cmr-12">] [</span><a
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href="userhtmlsu9.html#tailuserhtmlsu9.html" ><span
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class="cmr-12">prev-tail</span></a><span
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class="cmr-12">] [</span><a
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href="userhtmlsu10.html" ><span
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class="cmr-12">front</span></a><span
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class="cmr-12">] [</span><a
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href="userhtmlse5.html#userhtmlsu10.html" ><span
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class="cmr-12">up</span></a><span
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</body></html>
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