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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html >
<head><title>psb_gediv — Entrywise Division</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="generator" content="TeX4ht (https://tug.org/tex4ht/)">
<meta name="originator" content="TeX4ht (https://tug.org/tex4ht/)">
<!-- html,3 -->
<meta name="src" content="userhtml.tex">
<link rel="stylesheet" type="text/css" href="userhtml.css">
</head><body
>
<!--l. 1312--><div class="crosslinks"><p class="noindent">[<a
href="userhtmlsu27.html" >next</a>] [<a
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<h4 class="subsectionHead"><span class="titlemark">4.15 </span> <a
id="x33-700004.15"></a>psb_gediv — Entrywise Division</h4>
<!--l. 1314--><p class="noindent" >This function computes the entrywise division between two vectors <span
class="cmmi-10">x </span>and
<span
class="cmmi-10">y</span>
<center class="math-display" >
<img
src="userhtml23x.png" alt="∕ ← x(i)∕y(i).
" class="math-display" ></center>
<!--l. 1316--><p class="nopar" >
<!--l. 1318--><p class="indent" > <span class="lstinline"></span><span
class="cmtt-10">psb_gediv</span><span
class="cmtt-10">(</span><span
class="cmtt-10">x</span><span
class="cmtt-10">,</span><span
class="cmtt-10"> </span><span
class="cmtt-10">y</span><span
class="cmtt-10">,</span><span
class="cmtt-10"> </span><span
class="cmtt-10">desc_a</span><span
class="cmtt-10">,</span><span
class="cmtt-10"> </span><span
class="cmtt-10">info</span><span
class="cmtt-10">,</span><span
class="cmtt-10"> </span><span
class="cmtt-10">[</span><span
class="cmtt-10">flag</span><span
class="cmtt-10">)</span>
<div class="table">
<!--l. 1321--><p class="indent" > <a
id="x33-70001r15"></a><hr class="float"><div class="float"
>
<div class="center"
>
<!--l. 1322--><p class="noindent" >
<div class="tabular"> <table id="TBL-15" class="tabular"
cellspacing="0" cellpadding="0"
><colgroup id="TBL-15-1g"><col
id="TBL-15-1"><col
id="TBL-15-2"></colgroup><tr
class="hline"><td><hr></td><td><hr></td></tr><tr
style="vertical-align:baseline;" id="TBL-15-1-"><td style="white-space:nowrap; text-align:left;" id="TBL-15-1-1"
class="td11"><span
class="cmmi-10">∕</span>, <span
class="cmmi-10">x</span>, <span
class="cmmi-10">y </span></td><td style="white-space:nowrap; text-align:left;" id="TBL-15-1-2"
class="td11"><span
class="cmbx-10">Function</span></td>
</tr><tr
class="hline"><td><hr></td><td><hr></td></tr><tr
style="vertical-align:baseline;" id="TBL-15-2-"><td style="white-space:nowrap; text-align:left;" id="TBL-15-2-1"
class="td11">Short Precision Real </td><td style="white-space:nowrap; text-align:left;" id="TBL-15-2-2"
class="td11">psb_gediv</td>
</tr><tr
style="vertical-align:baseline;" id="TBL-15-3-"><td style="white-space:nowrap; text-align:left;" id="TBL-15-3-1"
class="td11">Long Precision Real </td><td style="white-space:nowrap; text-align:left;" id="TBL-15-3-2"
class="td11">psb_gediv</td>
</tr><tr
style="vertical-align:baseline;" id="TBL-15-4-"><td style="white-space:nowrap; text-align:left;" id="TBL-15-4-1"
class="td11">Short Precision Complex</td><td style="white-space:nowrap; text-align:left;" id="TBL-15-4-2"
class="td11">psb_gediv</td>
</tr><tr
style="vertical-align:baseline;" id="TBL-15-5-"><td style="white-space:nowrap; text-align:left;" id="TBL-15-5-1"
class="td11">Long Precision Complex </td><td style="white-space:nowrap; text-align:left;" id="TBL-15-5-2"
class="td11">psb_gediv</td>
</tr><tr
class="hline"><td><hr></td><td><hr></td></tr><tr
style="vertical-align:baseline;" id="TBL-15-6-"><td style="white-space:nowrap; text-align:left;" id="TBL-15-6-1"
class="td11"> </td></tr></table></div></div>
<br /> <div class="caption"
><span class="id">Table 15: </span><span
class="content">Data types</span></div><!--tex4ht:label?: x33-70001r15 -->
</div><hr class="endfloat" />
</div>
<dl class="description"><dt class="description">
<span
class="cmbx-10">Type:</span> </dt><dd
class="description">Synchronous.
</dd><dt class="description">
<span
class="cmbx-10">On Entry</span> </dt><dd
class="description">
</dd><dt class="description">
<span
class="cmbx-10">x</span> </dt><dd
class="description">the local portion of global dense vector <span
class="cmmi-10">x</span>.<br
class="newline" />Scope: <span
class="cmbx-10">local </span><br
class="newline" />Type: <span
class="cmbx-10">required </span><br
class="newline" />Intent: <span
class="cmbx-10">in</span>.<br
class="newline" />Specified as: an object of type <a
href="userhtmlsu7.html#vdata"><span
class="cmtt-10">psb</span><span
class="cmtt-10">_T</span><span
class="cmtt-10">_vect</span><span
class="cmtt-10">_type</span></a> containing numbers of
type specified in Table <a
href="userhtmlsu11.html#x20-57001r2">2<!--tex4ht:ref: tab:f90dot --></a>.
</dd><dt class="description">
<span
class="cmbx-10">y</span> </dt><dd
class="description">the local portion of global dense vector <span
class="cmmi-10">y</span>. <br
class="newline" />Scope: <span
class="cmbx-10">local </span><br
class="newline" />Type: <span
class="cmbx-10">required </span><br
class="newline" />Intent: <span
class="cmbx-10">in</span>.<br
class="newline" />Specified as: an object of type <a
href="userhtmlsu7.html#vdata"><span
class="cmtt-10">psb</span><span
class="cmtt-10">_T</span><span
class="cmtt-10">_vect</span><span
class="cmtt-10">_type</span></a> containing numbers of
type specified in Table <a
href="userhtmlsu11.html#x20-57001r2">2<!--tex4ht:ref: tab:f90dot --></a>.
</dd><dt class="description">
<span
class="cmbx-10">desc</span><span
class="cmbx-10">_a</span> </dt><dd
class="description">contains data structures for communications.<br
class="newline" />Scope: <span
class="cmbx-10">local </span><br
class="newline" />Type: <span
class="cmbx-10">required</span><br
class="newline" />Intent: <span
class="cmbx-10">in</span>.<br
class="newline" />Specified as: an object of type <a
href="userhtmlsu5.html#descdata"><span
class="cmtt-10">psb</span><span
class="cmtt-10">_desc</span><span
class="cmtt-10">_type</span></a>.
</dd><dt class="description">
<span
class="cmbx-10">flag</span> </dt><dd
class="description">check if any of the <span
class="cmmi-10">y</span>(<span
class="cmmi-10">i</span>) = 0, and in case returns error halting the
computation.<br
class="newline" />Scope: <span
class="cmbx-10">local </span><br
class="newline" />Type: <span
class="cmbx-10">optional </span>Intent: <span
class="cmbx-10">in</span>.<br
class="newline" />Specified as: the logical value <span class="lstinline"></span><span
class="cmtt-10">flag</span><span
class="cmtt-10">=.</span><span
class="cmtt-10">true</span><span
class="cmtt-10">.</span>
</dd><dt class="description">
<span
class="cmbx-10">On Return</span> </dt><dd
class="description">
</dd><dt class="description">
<span
class="cmbx-10">x</span> </dt><dd
class="description">the local portion of result submatrix <span
class="cmmi-10">x</span>.<br
class="newline" />Scope: <span
class="cmbx-10">local </span><br
class="newline" />Type: <span
class="cmbx-10">required </span><br
class="newline" />Intent: <span
class="cmbx-10">inout</span>.<br
class="newline" />Specified as: an object of type <a
href="userhtmlsu7.html#vdata"><span
class="cmtt-10">psb</span><span
class="cmtt-10">_T</span><span
class="cmtt-10">_vect</span><span
class="cmtt-10">_type</span></a> containing numbers of
the type indicated in Table <a
href="userhtmlsu23.html#x32-69001r14">14<!--tex4ht:ref: tab:f90mlt --></a>.
</dd><dt class="description">
<span
class="cmbx-10">info</span> </dt><dd
class="description">Error code.<br
class="newline" />Scope: <span
class="cmbx-10">local </span><br
class="newline" />Type: <span
class="cmbx-10">required </span><br
class="newline" />Intent: <span
class="cmbx-10">out</span>.<br
class="newline" />An integer value; 0 means no error has been detected.</dd></dl>
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