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<!--l. 93--><p class="noindent" ><span 
class="cmbx-12x-x-144">MLD2P4</span><br 
class="newline" /> <span 
class="cmbx-12x-x-144">User&#8217;s and Reference Guide</span><br 
class="newline" /> <span 
class="cmti-12">A guide for the MultiLevel Domain Decomposition Parallel Preconditioners Package</span>
<span 
class="cmti-12">based on PSBLAS</span><br 
class="newline" /> <span 
class="cmbx-12">Pasqua D&#8217;Ambra</span><br 
class="newline" /><span 
class="cmr-12">IAC-CNR, Naples, Italy</span><br 
class="newline" /> <span 
class="cmbx-12">Daniela di Serafino</span><br 
class="newline" /><span 
class="cmr-12">University of Campania &#8220;Luigi Vanvitelli&#8221;, Caserta, Italy</span><br 
class="newline" /> <span 
class="cmbx-12">Salvatore Filippone </span><br 
class="newline" /><span 
class="cmr-12">Cranfield University, Cranfield, United Kingdom</span><br 
class="newline" /> <span 
class="cmr-12">Software version: 2.2</span><br 
class="newline" /><span 
class="cmr-12">July 31, 2018</span>
                                                                               

                                                                               
   <span 
class="cmr-12">&#x00A0;</span><br 
class="newline" />
                                                                               

                                                                               
                                                                               

                                                                               
   <div class="tableofcontents">
   <span class="likesectionToc" ><a 
href="userhtmlli1.html#x2-1000" id="QQ2-2-1"><span 
class="cmr-12">Abstract</span></a></span>
<br />   <span class="sectionToc" ><a 
href="userhtmlli1.html#Q1-2-2"><span 
class="cmr-12">Abstract</span></a></span>
<br />   <span class="likesectionToc" ><a 
href="userhtmlli2.html#x3-2000" id="QQ2-3-3"><span 
class="cmr-12">Contents</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">1 </span><a 
href="userhtmlse1.html#x4-30001" id="QQ2-4-4"><span 
class="cmr-12">General Overview</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">2 </span><a 
href="userhtmlse2.html#x5-40002" id="QQ2-5-5"><span 
class="cmr-12">Code Distribution</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="likesubsectionToc" ><a 
href="userhtmlli3.html#x6-50002" id="QQ2-6-6"><span 
class="cmr-12">Contributors</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">3 </span><a 
href="userhtmlse3.html#x7-60003" id="QQ2-7-7"><span 
class="cmr-12">Configuring and Building MLD2P4</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">3.1 </span><a 
href="userhtmlsu1.html#x8-70003.1" id="QQ2-8-8"><span 
class="cmr-12">Prerequisites</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">3.2 </span><a 
href="userhtmlsu2.html#x9-80003.2" id="QQ2-9-9"><span 
class="cmr-12">Optional third party libraries</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">3.3 </span><a 
href="userhtmlsu3.html#x10-90003.3" id="QQ2-10-10"><span 
class="cmr-12">Configuration options</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">3.4 </span><a 
href="userhtmlsu4.html#x11-100003.4" id="QQ2-11-11"><span 
class="cmr-12">Bug reporting</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">3.5 </span><a 
href="userhtmlsu5.html#x12-110003.5" id="QQ2-12-12"><span 
class="cmr-12">Example and test programs</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">4 </span><a 
href="userhtmlse4.html#x13-120004" id="QQ2-13-13"><span 
class="cmr-12">Multigrid Background</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">4.1 </span><a 
href="userhtmlsu6.html#x14-130004.1" id="QQ2-14-14"><span 
class="cmr-12">AMG preconditioners</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">4.2 </span><a 
href="userhtmlsu7.html#x15-140004.2" id="QQ2-15-16"><span 
class="cmr-12">Smoothed Aggregation</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">4.3 </span><a 
href="userhtmlsu8.html#x16-150004.3" id="QQ2-16-17"><span 
class="cmr-12">Smoothers and coarsest-level solvers</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">5 </span><a 
href="userhtmlse5.html#x17-160005" id="QQ2-17-18"><span 
class="cmr-12">Getting Started</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">5.1 </span><a 
href="userhtmlsu9.html#x18-170005.1" id="QQ2-18-20"><span 
class="cmr-12">Examples</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">6 </span><a 
href="userhtmlse6.html#x19-180006" id="QQ2-19-25"><span 
class="cmr-12">User Interface</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.1 </span><a 
href="userhtmlsu10.html#x20-190006.1" id="QQ2-20-26"><span 
class="cmr-12">Method init</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.2 </span><a 
href="userhtmlsu11.html#x21-200006.2" id="QQ2-21-27"><span 
class="cmr-12">Method set</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.3 </span><a 
href="userhtmlsu12.html#x22-210006.3" id="QQ2-22-35"><span 
class="cmr-12">Method hierarchy</span><span 
class="cmr-12">_build</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.4 </span><a 
href="userhtmlsu13.html#x23-220006.4" id="QQ2-23-36"><span 
class="cmr-12">Method smoothers</span><span 
class="cmr-12">_build</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.5 </span><a 
href="userhtmlsu14.html#x24-230006.5" id="QQ2-24-37"><span 
class="cmr-12">Method build</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.6 </span><a 
href="userhtmlsu15.html#x25-240006.6" id="QQ2-25-38"><span 
class="cmr-12">Method apply</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.7 </span><a 
href="userhtmlsu16.html#x26-250006.7" id="QQ2-26-39"><span 
class="cmr-12">Method free</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.8 </span><a 
href="userhtmlsu17.html#x27-260006.8" id="QQ2-27-40"><span 
class="cmr-12">Method descr</span></a></span>
<br />   <span 
class="cmr-12">&#x00A0;</span><span class="subsectionToc" ><span 
class="cmr-12">6.9 </span><a 
href="userhtmlsu18.html#x28-270006.9" id="QQ2-28-41"><span 
class="cmr-12">Auxiliary Methods</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">7 </span><a 
href="userhtmlse7.html#x29-330007" id="QQ2-29-47"><span 
class="cmr-12">Adding new smoother and solver objects to MLD2P4</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">8 </span><a 
href="userhtmlse8.html#x30-340008" id="QQ2-30-48"><span 
class="cmr-12">Error Handling</span></a></span>
<br />   <span class="sectionToc" ><span 
class="cmr-12">A </span><a 
href="userhtmlse9.html#x31-35000A" id="QQ2-31-49"><span 
class="cmr-12">License</span></a></span>
<br />   <span class="likesectionToc" ><a 
href="userhtmlli4.html#x32-36000A" id="QQ2-32-50"><span 
class="cmr-12">References</span></a></span>
<br />   <span class="sectionToc" ><a 
href="userhtmlli4.html#Q1-32-51"><span 
class="cmr-12">References</span></a></span>
   </div>










 
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