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137 lines
5.7 KiB
HTML
137 lines
5.7 KiB
HTML
5 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html >
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<head><title>psb_cdasb — Communication descriptor assembly routine</title>
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</head><body
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>
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<!--l. 294--><div class="crosslinks"><p class="noindent">[<a
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href="userhtmlsu36.html" >next</a>] [<a
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href="userhtmlsu31.html#tailuserhtmlsu31.html" >prev-tail</a>] [<a
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href="userhtmlsu32.html#userhtmlsu35.html" >up</a>] </p></div>
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<h4 class="subsectionHead"><span class="titlemark">6.3 </span> <a
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id="x43-800006.3"></a>psb_cdasb — Communication descriptor assembly routine</h4>
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<div class="verbatim" id="verbatim-59">
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call psb_cdasb(desc_a, info [, mold])
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</div>
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<!--l. 298--><p class="nopar" >
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<!--l. 300--><p class="indent" >
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<dl class="description"><dt class="description">
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<span
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class="cmbx-10">Type:</span> </dt><dd
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class="description">Synchronous.
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</dd><dt class="description">
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<span
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class="cmbx-10">On Entry</span> </dt><dd
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class="description">
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</dd><dt class="description">
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<span
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class="cmbx-10">desc</span><span
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class="cmbx-10">_a</span> </dt><dd
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class="description">the communication descriptor.<br
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class="newline" />Scope:<span
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class="cmbx-10">local</span>.<br
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class="newline" />Type:<span
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class="cmbx-10">required</span>.<br
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class="newline" />Intent: <span
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class="cmbx-10">inout</span>.<br
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class="newline" />Specified as: a structured data of type <a
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href="userhtmlsu5.html#descdata"><span
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class="cmtt-10">psb</span><span
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class="cmtt-10">_desc</span><span
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class="cmtt-10">_type</span></a>.
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</dd><dt class="description">
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<span
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class="cmbx-10">mold</span> </dt><dd
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class="description">The desired dynamic type for the internal index storage.<br
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class="newline" />Scope: <span
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class="cmbx-10">local</span>.<br
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class="newline" />Type: <span
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class="cmbx-10">optional</span>.<br
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class="newline" />Intent: <span
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class="cmbx-10">in</span>.<br
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class="newline" />Specified as: a object of type derived from (integer)
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<a
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id="vbasedata"><span
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class="cmtt-10">psb</span><span
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class="cmtt-10">_T</span><span
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class="cmtt-10">_base</span><span
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class="cmtt-10">_vect</span><span
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class="cmtt-10">_type</span></a>.</dd></dl>
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<!--l. 315--><p class="indent" >
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<dl class="description"><dt class="description">
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<span
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class="cmbx-10">On Return</span> </dt><dd
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class="description">
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</dd><dt class="description">
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<span
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class="cmbx-10">desc</span><span
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class="cmbx-10">_a</span> </dt><dd
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class="description">the communication descriptor.<br
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class="newline" />Scope:<span
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class="cmbx-10">local</span>.<br
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class="newline" />Type:<span
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class="cmbx-10">required</span>.<br
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class="newline" />Intent: <span
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class="cmbx-10">inout</span>.<br
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class="newline" />Specified as: a structured data of type <a
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href="userhtmlsu5.html#descdata"><span
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class="cmtt-10">psb</span><span
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class="cmtt-10">_desc</span><span
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class="cmtt-10">_type</span></a>.
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</dd><dt class="description">
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<span
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class="cmbx-10">info</span> </dt><dd
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class="description">Error code.<br
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class="newline" />Scope: <span
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class="cmbx-10">local </span><br
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class="newline" />Type: <span
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class="cmbx-10">required </span><br
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class="newline" />Intent: <span
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class="cmbx-10">out</span>.<br
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class="newline" />An integer value; 0 means no error has been detected.</dd></dl>
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<!--l. 329--><p class="noindent" ><span
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class="cmbx-12">Notes</span>
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<ol class="enumerate1" >
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<li
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class="enumerate" id="x43-80002x1">On exit from this routine the descriptor is in the assembled state.</li></ol>
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<!--l. 334--><p class="noindent" >This call will set up all the necessary information for the halo data exchanges. In doing
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so, the library will need to identify the set of processes owning the halo indices
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through the use of the <span class="obeylines-h"><span class="verb"><span
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class="cmtt-10">desc%fnd_owner()</span></span></span> method; the owning processes
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are the topological neighbours of the calling process. If the user has some
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background information on the processes that are neighbours of the current one,
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it is possible to specify explicitly the list of adjacent processes with a call
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to <span class="obeylines-h"><span class="verb"><span
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class="cmtt-10">desc%set_p_adjcncy(list)</span></span></span>; this will speed up the subsequent call to
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<span class="obeylines-h"><span class="verb"><span
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class="cmtt-10">psb_cdasb</span></span></span>.
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<!--l. 347--><div class="crosslinks"><p class="noindent">[<a
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href="userhtmlsu36.html" >next</a>] [<a
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href="userhtmlsu31.html" >prev</a>] [<a
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href="userhtmlsu31.html#tailuserhtmlsu31.html" >prev-tail</a>] [<a
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href="userhtmlsu32.html" >front</a>] [<a
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href="userhtmlsu32.html#userhtmlsu35.html" >up</a>] </p></div>
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<!--l. 347--><p class="indent" > <a
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id="tailuserhtmlsu32.html"></a>
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</body></html>
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