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<h4 class="subsectionHead"><span class="titlemark"><span
class="cmr-12">6.1 </span></span> <a
id="x20-190006.1"></a><span
class="cmr-12">Method init</span></h4>
<div class="center"
>
<!--l. 45--><p class="noindent" >
<!--l. 46--><p class="noindent" ><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">call</span><span
class="cmtt-12"> p%init(icontx,ptype,info)</span></span></span></div>
<!--l. 49--><p class="noindent" ><span
class="cmr-12">This method allocates and initializes the preconditioner </span><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">p</span></span></span><span
class="cmr-12">, according to the</span>
<span
class="cmr-12">preconditioner type chosen by the user.</span>
<!--l. 53--><p class="noindent" ><span
class="cmbx-12">Arguments</span>
<div class="tabular"> <table id="TBL-2" class="tabular"
cellspacing="0" cellpadding="0"
><colgroup id="TBL-2-1g"><col
id="TBL-2-1"><col
id="TBL-2-2"></colgroup><tr
style="vertical-align:baseline;" id="TBL-2-1-"><td style="white-space:wrap; text-align:left;" id="TBL-2-1-1"
class="td11"><!--l. 60--><p class="noindent" ><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">icontxt</span></span></span> </td> <td style="white-space:wrap; text-align:left;" id="TBL-2-1-2"
class="td11"><!--l. 60--><p class="noindent" ><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">integer,</span><span
class="cmtt-12"> intent(in)</span></span></span><span
class="cmr-12">.</span> </td>
</tr><tr
style="vertical-align:baseline;" id="TBL-2-2-"><td style="white-space:wrap; text-align:left;" id="TBL-2-2-1"
class="td11"><!--l. 61--><p class="noindent" > </td><td style="white-space:wrap; text-align:left;" id="TBL-2-2-2"
class="td11"><!--l. 61--><p class="noindent" ><span
class="cmr-12">The communication context.</span> </td></tr><tr
style="vertical-align:baseline;" id="TBL-2-3-"><td style="white-space:wrap; text-align:left;" id="TBL-2-3-1"
class="td11"><!--l. 62--><p class="noindent" ><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">ptype</span></span></span> </td> <td style="white-space:wrap; text-align:left;" id="TBL-2-3-2"
class="td11"><!--l. 62--><p class="noindent" ><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">character(len=*),</span><span
class="cmtt-12"> intent(in)</span></span></span><span
class="cmr-12">.</span></td>
</tr><tr
style="vertical-align:baseline;" id="TBL-2-4-"><td style="white-space:wrap; text-align:left;" id="TBL-2-4-1"
class="td11"><!--l. 63--><p class="noindent" > </td><td style="white-space:wrap; text-align:left;" id="TBL-2-4-2"
class="td11"><!--l. 63--><p class="noindent" ><span
class="cmr-12">The type of preconditioner. Its values are specified in Table</span><span
class="cmr-12"> </span><a
href="userhtmlse5.html#x17-160151"><span
class="cmr-12">1</span><!--tex4ht:ref: tab:precinit --></a><span
class="cmr-12">.</span> </td>
</tr><tr
style="vertical-align:baseline;" id="TBL-2-5-"><td style="white-space:wrap; text-align:left;" id="TBL-2-5-1"
class="td11"><!--l. 65--><p class="noindent" > </td><td style="white-space:wrap; text-align:left;" id="TBL-2-5-2"
class="td11"><!--l. 65--><p class="noindent" ><span
class="cmr-12">Note that the strings are case insensitive.</span> </td>
</tr><tr
style="vertical-align:baseline;" id="TBL-2-6-"><td style="white-space:wrap; text-align:left;" id="TBL-2-6-1"
class="td11"><!--l. 66--><p class="noindent" ><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">info</span></span></span> </td><td style="white-space:wrap; text-align:left;" id="TBL-2-6-2"
class="td11"><!--l. 66--><p class="noindent" ><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">integer,</span><span
class="cmtt-12"> intent(out)</span></span></span><span
class="cmr-12">.</span> </td>
</tr><tr
style="vertical-align:baseline;" id="TBL-2-7-"><td style="white-space:wrap; text-align:left;" id="TBL-2-7-1"
class="td11"><!--l. 67--><p class="noindent" > </td><td style="white-space:wrap; text-align:left;" id="TBL-2-7-2"
class="td11"><!--l. 67--><p class="noindent" ><span
class="cmr-12">Error code. If no error, 0 is returned. See Section</span><span
class="cmr-12"> </span><a
href="userhtmlse8.html#x30-340008"><span
class="cmr-12">8</span><!--tex4ht:ref: sec:errors --></a> <span
class="cmr-12">for details.</span> </td>
</tr><tr
style="vertical-align:baseline;" id="TBL-2-8-"><td style="white-space:wrap; text-align:left;" id="TBL-2-8-1"
class="td11"> </td> </tr></table></div>
<!--l. 77--><p class="indent" > <span
class="cmr-12">For compatibility with the previous versions of MLD2P4, this method can be also</span>
<span
class="cmr-12">invoked as follows:</span>
<div class="center"
>
<!--l. 80--><p class="noindent" >
<!--l. 81--><p class="noindent" ><span class="obeylines-h"><span class="verb"><span
class="cmtt-12">call</span><span
class="cmtt-12"> mld_precinit(p,ptype,info)</span></span></span></div>
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