/
errata_from_342_to_350.html
1206 lines (1123 loc) · 25.7 KB
/
errata_from_342_to_350.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
<meta name="generator" content="AsciiDoc 8.6.9" />
<title>Bugs corrected from 3.4.2 to 3.5.0</title>
<style type="text/css">
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/* Title font. */
h1, h2, h3, h4, h5, h6,
div.title, caption.title,
thead, p.table.header,
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font-family: Arial,Helvetica,sans-serif;
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margin: 1em 5% 1em 5%;
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color: blue;
text-decoration: underline;
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color: navy;
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font-weight: bold;
color: #083194;
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margin-bottom: 0.5em;
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padding-top: 0.5em;
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float: left;
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clear: left;
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font-size: 1.0em;
}
div.sectionbody {
margin-left: 0;
}
hr {
border: 1px solid silver;
}
p {
margin-top: 0.5em;
margin-bottom: 0.5em;
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ul, ol, li > p {
margin-top: 0;
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ul > li { color: #aaa; }
ul > li > * { color: black; }
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font-family: "Courier New", Courier, monospace;
font-size: inherit;
color: navy;
padding: 0;
margin: 0;
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pre {
white-space: pre-wrap;
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color: #527bbd;
font-weight: bold;
font-size: 1.1em;
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}
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}
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margin-top: 4.0em;
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margin-bottom: 1.5em;
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div.imageblock, div.exampleblock, div.verseblock,
div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
div.admonitionblock {
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margin-bottom: 1.5em;
}
div.admonitionblock {
margin-top: 2.0em;
margin-bottom: 2.0em;
margin-right: 10%;
color: #606060;
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div.content { /* Block element content. */
padding: 0;
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/* Block element titles. */
div.title, caption.title {
color: #527bbd;
font-weight: bold;
text-align: left;
margin-top: 1.0em;
margin-bottom: 0.5em;
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div.title + * {
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td div.title:first-child {
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div.content div.title:first-child {
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text-align: left;
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a.image:visited { color: white; }
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td > div.verse {
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#footnotes div.footnote {
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#footnotes hr {
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margin-left: 0;
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margin-bottom: 0.1em;
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span.fuchsia { color: fuchsia; }
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span.green { color: green; }
span.lime { color: lime; }
span.maroon { color: maroon; }
span.navy { color: navy; }
span.olive { color: olive; }
span.purple { color: purple; }
span.red { color: red; }
span.silver { color: silver; }
span.teal { color: teal; }
span.white { color: white; }
span.yellow { color: yellow; }
span.aqua-background { background: aqua; }
span.black-background { background: black; }
span.blue-background { background: blue; }
span.fuchsia-background { background: fuchsia; }
span.gray-background { background: gray; }
span.green-background { background: green; }
span.lime-background { background: lime; }
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span.silver-background { background: silver; }
span.teal-background { background: teal; }
span.white-background { background: white; }
span.yellow-background { background: yellow; }
span.big { font-size: 2em; }
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span.underline { text-decoration: underline; }
span.overline { text-decoration: overline; }
span.line-through { text-decoration: line-through; }
div.unbreakable { page-break-inside: avoid; }
/*
* xhtml11 specific
*
* */
div.tableblock {
margin-top: 1.0em;
margin-bottom: 1.5em;
}
div.tableblock > table {
border: 3px solid #527bbd;
}
thead, p.table.header {
font-weight: bold;
color: #527bbd;
}
p.table {
margin-top: 0;
}
/* Because the table frame attribute is overriden by CSS in most browsers. */
div.tableblock > table[frame="void"] {
border-style: none;
}
div.tableblock > table[frame="hsides"] {
border-left-style: none;
border-right-style: none;
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div.tableblock > table[frame="vsides"] {
border-top-style: none;
border-bottom-style: none;
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/*
* html5 specific
*
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table.tableblock {
margin-top: 1.0em;
margin-bottom: 1.5em;
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padding: 4px;
border-style: solid;
border-color: #527bbd;
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table.tableblock.frame-topbot {
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}
table.tableblock.frame-sides {
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border-bottom-style: hidden;
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table.tableblock.frame-none {
border-style: hidden;
}
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text-align: left;
}
th.tableblock.halign-center, td.tableblock.halign-center {
text-align: center;
}
th.tableblock.halign-right, td.tableblock.halign-right {
text-align: right;
}
th.tableblock.valign-top, td.tableblock.valign-top {
vertical-align: top;
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th.tableblock.valign-middle, td.tableblock.valign-middle {
vertical-align: middle;
}
th.tableblock.valign-bottom, td.tableblock.valign-bottom {
vertical-align: bottom;
}
/*
* manpage specific
*
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body.manpage h1 {
padding-top: 0.5em;
padding-bottom: 0.5em;
border-top: 2px solid silver;
border-bottom: 2px solid silver;
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body.manpage h2 {
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body.manpage div.sectionbody {
margin-left: 3em;
}
@media print {
body.manpage div#toc { display: none; }
}
</style>
<script type="text/javascript">
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// browsers).
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/////////////////////////////////////////////////////////////////////
// Footnotes generator
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*/
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<body class="article">
<div id="header">
<h1>Bugs corrected from 3.4.2 to 3.5.0</h1>
<div id="toc">
<div id="toctitle">Table of Contents</div>
<noscript><p><b>JavaScript must be enabled in your browser to display the table of contents.</b></p></noscript>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_strong_span_class_green_bug112_span_strong_dsyevr_does_not_seem_to_be_thread_safe"><strong><span class="green">bug112</span></strong> :: DSYEVR does not seem to be thread-safe</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>, rev 1436
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.2
</p>
</li>
<li>
<p>
Bug report by Daniel Strobusch on LAPACK Mailing - August 19th 2013
</p>
</li>
<li>
<p>
Links: <a href="http://stackoverflow.com/q/18216314/1458343">http://stackoverflow.com/q/18216314/1458343</a>
</p>
</li>
<li>
<p>
Fix: LAPACK needs to be compiled with option "-frecursive" so that local
arrays are allocated on the stack. * Corrected by Julien on Oct 4 2013
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug110_span_strong_possible_infinite_loop_in_zlartg_when_input_vector_has_nan"><strong><span class="green">bug110</span></strong> :: possible infinite loop in ZLARTG when input vector has NaN</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>, rev 1437
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.2
</p>
</li>
<li>
<p>
Bug report by Mark Hoemmen and Jack Poulson
</p>
</li>
<li>
<p>
See <a href="http://icl.cs.utk.edu/lapack-forum/viewtopic.php?f=5&t=3267&p=9067">http://icl.cs.utk.edu/lapack-forum/viewtopic.php?f=5&t=3267&p=9067</a>
</p>
</li>
<li>
<p>
Mark Hoemmen writes: Jack Poulson found that ZLARTG has an infinite loop related
</p>
</li>
<li>
<p>
to NaN .EQ. 0. It’s the line below "ELSE IF( SCALE.LE.SAFMN2 )" between 10 and
</p>
</li>
<li>
<p>
20. When G is NaN, then the loop goes forever.
</p>
</li>
<li>
<p>
Corrected by Rodney on Oct 5 2013
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0109_span_strong_xdrvrfp_test_was_failing"><strong><span class="green">bug0109</span></strong> :: [xDRVRFP] Test was failing</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>, rev 1425
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.2
</p>
</li>
<li>
<p>
bug report by Hong Xu (INTEL) on July 21st
</p>
</li>
<li>
<p>
Patch sent by Hong Xu (INTEL)
</p>
</li>
<li>
<p>
In the input parameter checking, LDZ was not checked correctly
</p>
</li>
<li>
<p>
LDZ was checked against M instead of N essentially
</p>
</li>
<li>
<p>
Corrected by Julien on July 22 2013
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0108_span_strong_xdrvrfp_test_was_failing"><strong><span class="green">bug0108</span></strong> :: [xDRVRFP] Test was failing</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>, rev 1416
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.2
</p>
</li>
<li>
<p>
bug report by Elena Ivanova (ORACLE)
</p>
</li>
<li>
<p>
Patch sent by Elena Ivanova (ORACLE)
</p>
</li>
<li>
<p>
add MAX() to ensure index is at least 1
</p>
</li>
<li>
<p>
Corrected by Rodney on June 27 2013
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0107_span_strong_csd_routines_fixed_array_index_problems"><strong><span class="green">bug0107</span></strong> :: [CSD routines] fixed array index problems</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>, rev 1414
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.2
</p>
</li>
<li>
<p>
add MAX() to ensure index is at least 1
</p>
</li>
<li>
<p>
this fixes array bounds violations in the test suite when array bounds checking is enabled
</p>
</li>
<li>
<p>
Corrected by Rodney on June 04 2013
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0106_span_strong_xgebal_very_large_backward_error_for_certain_hessenberg_matrices_watkins"><strong><span class="green">bug0106</span></strong> :: [xGEBAL] very large backward error for certain Hessenberg matrices (Watkins)</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>, rev 1413
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.2
</p>
</li>
<li>
<p>
bug report on the forum topic 4221
</p>
</li>
<li>
<p>
Now using 2-norm to compute vector norms of row and column for balancing algorithm.
</p>
</li>
<li>
<p>
This seems to fix problems with balancing causing very large backward error for certain
</p>
</li>
<li>
<p>
Hessenberg matrices, including the often cited example of Watkins.
</p>
</li>
<li>
<p>
Corrected by Bradley Lowery, Rodney James, Julien Langou on May 26 2013
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0105_span_strong_lapacke_lapacke_h_problem"><strong><span class="green">bug0105</span></strong> :: [LAPACKE] lapacke.h problem</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>, rev 1388
</p>
</li>
<li>
<p>
Present in LAPACKE 3.4.2
</p>
</li>
<li>
<p>
bug report on the forum topic 4221
</p>
</li>
<li>
<p>
Patch sent by bmoloney
</p>
</li>
<li>