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https://github.com/sfilippone/amg4psblas.git
synced 2026-10-06 22:55:12 +00:00
Added remark on polynomial smoothers
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+31
-31
@@ -10,7 +10,7 @@
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<link rel="stylesheet" type="text/css" href="userhtml.css">
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</head><body
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>
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<!--l. 828--><div class="crosslinks"><p class="noindent"><span
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<!--l. 837--><div class="crosslinks"><p class="noindent"><span
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class="cmr-12">[</span><a
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href="userhtmlsu14.html" ><span
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class="cmr-12">next</span></a><span
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@@ -33,10 +33,10 @@ class="cmr-12">5.6 </span></span> <a
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class="cmr-12">Method apply</span></h4>
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<div class="center"
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>
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<!--l. 830--><p class="noindent" >
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<!--l. 831--><p class="noindent" ><code class="lstinline"><span style="color:#000000">call</span><span style="color:#000000"> </span><span style="color:#000000">p</span><span style="color:#000000">%</span><span style="color:#000000">apply</span><span style="color:#000000">(</span><span style="color:#000000">x</span><span style="color:#000000">,</span><span style="color:#000000">y</span><span style="color:#000000">,</span><span style="color:#000000">desc_a</span><span style="color:#000000">,</span><span style="color:#000000">info</span><span style="color:#000000"> </span><span style="color:#000000">[,</span><span style="color:#000000">trans</span><span style="color:#000000">,</span><span style="color:#000000">work</span><span style="color:#000000">])</span></code><br />
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<!--l. 839--><p class="noindent" >
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<!--l. 840--><p class="noindent" ><code class="lstinline"><span style="color:#000000">call</span><span style="color:#000000"> </span><span style="color:#000000">p</span><span style="color:#000000">%</span><span style="color:#000000">apply</span><span style="color:#000000">(</span><span style="color:#000000">x</span><span style="color:#000000">,</span><span style="color:#000000">y</span><span style="color:#000000">,</span><span style="color:#000000">desc_a</span><span style="color:#000000">,</span><span style="color:#000000">info</span><span style="color:#000000"> </span><span style="color:#000000">[,</span><span style="color:#000000">trans</span><span style="color:#000000">,</span><span style="color:#000000">work</span><span style="color:#000000">])</span></code><br />
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</div>
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<!--l. 834--><p class="noindent" ><span
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<!--l. 843--><p class="noindent" ><span
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class="cmr-12">This method computes </span><span
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class="cmmi-12">y </span><span
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class="cmr-12">= </span><span
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@@ -64,7 +64,7 @@ class="cmr-12">is called within the PSBLAS method </span><code class="lstinline"
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class="cmr-12">and hence it is</span>
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<span
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class="cmr-12">completely transparent to the user.</span>
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<!--l. 843--><p class="noindent" ><span
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<!--l. 852--><p class="noindent" ><span
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class="cmbx-12">Arguments</span>
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<div class="tabular"> <table id="TBL-15" class="tabular"
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@@ -72,14 +72,14 @@ class="cmbx-12">Arguments</span>
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id="TBL-15-1"><col
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id="TBL-15-2"></colgroup><tr
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style="vertical-align:baseline;" id="TBL-15-1-"><td style="white-space:normal; text-align:left;" id="TBL-15-1-1"
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class="td11"> <!--l. 846--><p class="noindent" ><code class="lstinline"><span style="color:#000000">x</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-1-2"
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class="td11"> <!--l. 846--><p class="noindent" ><span
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class="td11"> <!--l. 855--><p class="noindent" ><code class="lstinline"><span style="color:#000000">x</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-1-2"
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class="td11"> <!--l. 855--><p class="noindent" ><span
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class="cmti-12">type</span><code class="lstinline"><span style="color:#000000">(</span><span style="color:#000000">kind_parameter</span><span style="color:#000000">)</span></code><span
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class="cmr-12">, dimension(:), intent(in)—.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-15-2-"><td style="white-space:normal; text-align:left;" id="TBL-15-2-1"
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class="td11"> <!--l. 847--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-2-2"
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class="td11"> <!--l. 847--><p class="noindent" ><span
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class="td11"> <!--l. 856--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-2-2"
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class="td11"> <!--l. 856--><p class="noindent" ><span
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class="cmr-12">The local part of the vector </span><span
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class="cmmi-12">x</span><span
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class="cmr-12">. Note that </span><span
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@@ -95,14 +95,14 @@ class="cmr-12">, single/double</span>
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class="cmr-12">precision version of AMG4PSBLAS under use.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-15-3-"><td style="white-space:normal; text-align:left;" id="TBL-15-3-1"
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class="td11"> <!--l. 850--><p class="noindent" ><code class="lstinline"><span style="color:#000000">y</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-3-2"
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class="td11"> <!--l. 850--><p class="noindent" ><span
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class="td11"> <!--l. 859--><p class="noindent" ><code class="lstinline"><span style="color:#000000">y</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-3-2"
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class="td11"> <!--l. 859--><p class="noindent" ><span
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class="cmti-12">type</span><code class="lstinline"><span style="color:#000000">(</span><span style="color:#000000">kind_parameter</span><span style="color:#000000">)</span></code><span
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class="cmr-12">, dimension(:), intent(out)—.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-15-4-"><td style="white-space:normal; text-align:left;" id="TBL-15-4-1"
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class="td11"> <!--l. 851--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-4-2"
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class="td11"> <!--l. 851--><p class="noindent" ><span
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class="td11"> <!--l. 860--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-4-2"
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class="td11"> <!--l. 860--><p class="noindent" ><span
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class="cmr-12">The local part of the vector </span><span
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class="cmmi-12">y</span><span
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class="cmr-12">. Note that </span><span
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@@ -118,25 +118,25 @@ class="cmr-12">, single/double</span>
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class="cmr-12">precision version of AMG4PSBLAS under use.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-15-5-"><td style="white-space:normal; text-align:left;" id="TBL-15-5-1"
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class="td11"> <!--l. 854--><p class="noindent" ><code class="lstinline"><span style="color:#000000">desc_a</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-5-2"
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class="td11"> <!--l. 854--><p class="noindent" ><code class="lstinline"><span style="color:#000000">type</span><span style="color:#000000">(</span><span style="color:#000000">psb_desc_type</span><span style="color:#000000">),</span><span style="color:#000000"> </span><span style="color:#000000">intent</span><span style="color:#000000">(</span><span style="color:#000000">in</span><span style="color:#000000">)</span></code><span
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class="td11"> <!--l. 863--><p class="noindent" ><code class="lstinline"><span style="color:#000000">desc_a</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-5-2"
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class="td11"> <!--l. 863--><p class="noindent" ><code class="lstinline"><span style="color:#000000">type</span><span style="color:#000000">(</span><span style="color:#000000">psb_desc_type</span><span style="color:#000000">),</span><span style="color:#000000"> </span><span style="color:#000000">intent</span><span style="color:#000000">(</span><span style="color:#000000">in</span><span style="color:#000000">)</span></code><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-15-6-"><td style="white-space:normal; text-align:left;" id="TBL-15-6-1"
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class="td11"> <!--l. 855--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-6-2"
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class="td11"> <!--l. 855--><p class="noindent" ><span
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class="td11"> <!--l. 864--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-6-2"
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class="td11"> <!--l. 864--><p class="noindent" ><span
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class="cmr-12">The communication descriptor associated to the matrix to be</span>
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<span
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class="cmr-12">preconditioned.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-15-7-"><td style="white-space:normal; text-align:left;" id="TBL-15-7-1"
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class="td11"> <!--l. 857--><p class="noindent" ><code class="lstinline"><span style="color:#000000">info</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-7-2"
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class="td11"> <!--l. 857--><p class="noindent" ><code class="lstinline"><span style="color:#000000">integer</span><span style="color:#000000">,</span><span style="color:#000000"> </span><span style="color:#000000">intent</span><span style="color:#000000">(</span><span style="color:#000000">out</span><span style="color:#000000">)</span></code><span
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class="td11"> <!--l. 866--><p class="noindent" ><code class="lstinline"><span style="color:#000000">info</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-7-2"
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class="td11"> <!--l. 866--><p class="noindent" ><code class="lstinline"><span style="color:#000000">integer</span><span style="color:#000000">,</span><span style="color:#000000"> </span><span style="color:#000000">intent</span><span style="color:#000000">(</span><span style="color:#000000">out</span><span style="color:#000000">)</span></code><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-15-8-"><td style="white-space:normal; text-align:left;" id="TBL-15-8-1"
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class="td11"> <!--l. 858--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-8-2"
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class="td11"> <!--l. 858--><p class="noindent" ><span
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class="td11"> <!--l. 867--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-8-2"
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class="td11"> <!--l. 867--><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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@@ -144,12 +144,12 @@ 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-15-9-"><td style="white-space:normal; text-align:left;" id="TBL-15-9-1"
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class="td11"> <!--l. 859--><p class="noindent" ><code class="lstinline"><span style="color:#000000">trans</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-9-2"
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class="td11"> <!--l. 859--><p class="noindent" ><code class="lstinline"><span style="color:#000000">character</span><span style="color:#000000">(</span><span style="color:#000000">len</span><span style="color:#000000">=1),</span><span style="color:#000000"> </span><span style="color:#000000">optional</span><span style="color:#000000">,</span><span style="color:#000000"> </span><span style="color:#000000">intent</span><span style="color:#000000">(</span><span style="color:#000000">in</span><span style="color:#000000">).</span></code> </td>
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class="td11"> <!--l. 868--><p class="noindent" ><code class="lstinline"><span style="color:#000000">trans</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-9-2"
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class="td11"> <!--l. 868--><p class="noindent" ><code class="lstinline"><span style="color:#000000">character</span><span style="color:#000000">(</span><span style="color:#000000">len</span><span style="color:#000000">=1),</span><span style="color:#000000"> </span><span style="color:#000000">optional</span><span style="color:#000000">,</span><span style="color:#000000"> </span><span style="color:#000000">intent</span><span style="color:#000000">(</span><span style="color:#000000">in</span><span style="color:#000000">).</span></code> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-15-10-"><td style="white-space:normal; text-align:left;" id="TBL-15-10-1"
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class="td11"> <!--l. 860--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-10-2"
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class="td11"> <!--l. 860--><p class="noindent" ><span
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class="td11"> <!--l. 869--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-10-2"
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class="td11"> <!--l. 869--><p class="noindent" ><span
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class="cmr-12">If </span><code class="lstinline"><span style="color:#000000">trans</span></code> <span
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class="cmr-12">= </span><code class="lstinline"><span style="color:#000000">’</span><span style="color:#000000">N</span><span style="color:#000000">’</span><span style="color:#000000">,</span><span style="color:#000000">’</span><span style="color:#000000">n</span><span style="color:#000000">’</span></code> <span
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class="cmr-12">then </span><span
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@@ -199,14 +199,14 @@ class="cmr-8">1</span></sup><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-15-11-"><td style="white-space:normal; text-align:left;" id="TBL-15-11-1"
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class="td11"> <!--l. 864--><p class="noindent" ><code class="lstinline"><span style="color:#000000">work</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-11-2"
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class="td11"> <!--l. 864--><p class="noindent" ><span
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class="td11"> <!--l. 873--><p class="noindent" ><code class="lstinline"><span style="color:#000000">work</span></code> </td><td style="white-space:normal; text-align:left;" id="TBL-15-11-2"
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class="td11"> <!--l. 873--><p class="noindent" ><span
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class="cmti-12">type</span><code class="lstinline"><span style="color:#000000">(</span><span style="color:#000000">kind_parameter</span><span style="color:#000000">)</span></code><span
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class="cmr-12">, dimension(:), optional, target—.</span> </td>
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</tr><tr
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style="vertical-align:baseline;" id="TBL-15-12-"><td style="white-space:normal; text-align:left;" id="TBL-15-12-1"
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class="td11"> <!--l. 865--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-12-2"
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class="td11"> <!--l. 865--><p class="noindent" ><span
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class="td11"> <!--l. 874--><p class="noindent" > </td><td style="white-space:normal; text-align:left;" id="TBL-15-12-2"
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class="td11"> <!--l. 874--><p class="noindent" ><span
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class="cmr-12">Workspace. Its size should be at least </span><code class="lstinline"><span style="color:#000000">4</span><span style="color:#000000"> </span><span style="color:#000000">*</span><span style="color:#000000"> </span><span style="color:#000000">psb_cd_get_local_</span></code>
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<code class="lstinline"><span style="color:#000000">cols</span><span style="color:#000000">(</span><span style="color:#000000">desc_a</span><span style="color:#000000">)</span></code> <span
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class="cmr-12">(see the PSBLAS User’s Guide). Note that </span><span
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@@ -229,7 +229,7 @@ class="td11"> </td> </tr></table>
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<!--l. 874--><div class="crosslinks"><p class="noindent"><span
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<!--l. 883--><div class="crosslinks"><p class="noindent"><span
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class="cmr-12">[</span><a
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href="userhtmlsu14.html" ><span
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class="cmr-12">next</span></a><span
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@@ -246,6 +246,6 @@ class="cmr-12">] [</span><a
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href="userhtmlse5.html#userhtmlsu13.html" ><span
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class="cmr-12">up</span></a><span
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class="cmr-12">] </span></p></div>
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<!--l. 874--><p class="indent" > <a
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<!--l. 883--><p class="indent" > <a
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id="tailuserhtmlsu13.html"></a>
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</body></html>
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