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<head><title>Example and test programs</title>
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>
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<!--l. 178--><div class="crosslinks"><p class="noindent"><span
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class="cmr-12">[</span><a
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href="userhtmlsu4.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="userhtmlsu4.html#tailuserhtmlsu4.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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class="cmr-12">tail</span></a><span
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class="cmr-12">] [</span><a
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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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<h4 class="subsectionHead"><span class="titlemark"><span
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class="cmr-12">3.5 </span></span> <a
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id="x12-110003.5"></a><span
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class="cmr-12">Example and test programs</span></h4>
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<!--l. 179--><p class="noindent" ><span
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class="cmr-12">The package contains the </span><span class="obeylines-h"><span class="verb"><span
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class="cmtt-12">examples</span></span></span> <span
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class="cmr-12">and </span><span class="obeylines-h"><span class="verb"><span
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class="cmtt-12">tests</span></span></span> <span
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class="cmr-12">directories; both of them are</span>
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<span
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class="cmr-12">further divided into </span><span class="obeylines-h"><span class="verb"><span
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class="cmtt-12">fileread</span></span></span> <span
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class="cmr-12">and </span><span class="obeylines-h"><span class="verb"><span
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class="cmtt-12">pdegen</span></span></span> <span
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class="cmr-12">subdirectories. Their purpose is as</span>
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<span
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class="cmr-12">follows:</span>
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<dl class="description"><dt class="description">
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<span
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class="cmtt-12">examples</span> </dt><dd
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class="description"><span
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class="cmr-12">contains a set of simple example programs with a predefined choice</span>
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<span
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class="cmr-12">of preconditioners, selectable via integer values. These are intended to</span>
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<span
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class="cmr-12">get an acquaintance with the multilevel preconditioners available in</span>
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<span
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class="cmr-12">AMG4PSBLAS.</span>
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</dd><dt class="description">
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<span
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class="cmtt-12">tests</span> </dt><dd
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class="description"><span
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class="cmr-12">contains a set of more sophisticated examples that will allow the user, via</span>
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<span
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class="cmr-12">the input files in the </span><span class="obeylines-h"><span class="verb"><span
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class="cmtt-12">runs</span></span></span> <span
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class="cmr-12">subdirectories, to experiment with the full range</span>
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<span
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class="cmr-12">of preconditioners implemented in the package.</span></dd></dl>
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<!--l. 192--><p class="noindent" ><span
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class="cmr-12">The </span><span class="obeylines-h"><span class="verb"><span
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class="cmtt-12">fileread</span></span></span> <span
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class="cmr-12">directories contain sample programs that read sparse matrices from files,</span>
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<span
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class="cmr-12">according to the Matrix Market or the Harwell-Boeing storage format; the </span><span class="obeylines-h"><span class="verb"><span
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class="cmtt-12">pdegen</span></span></span>
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<span
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class="cmr-12">programs generate matrices in full parallel mode from the discretization of a sample</span>
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<span
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class="cmr-12">partial differential equation.</span>
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<!--l. 1--><div class="crosslinks"><p class="noindent"><span
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class="cmr-12">[</span><a
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class="cmr-12">] [</span><a
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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="userhtmlse3.html#userhtmlsu5.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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