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errata_from_340_to_341.html
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errata_from_340_to_341.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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<title>Bugs corrected from 3.4.0 to 3.4.1</title>
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<body class="article">
<div id="header">
<h1>Bugs corrected from 3.4.0 to 3.4.1</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_bug0092_span_strong_xlaed6_avoid_div_by_zero"><strong><span class="green">bug0092</span></strong> :: xLAED6 avoid div by zero</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.0
</p>
</li>
<li>
<p>
bug report by Mict Pont (NAG).
</p>
</li>
<li>
<p>
In the 40 loop - when DSCALE(I)=TAU you get a divide by zero (rare in practice). This can cause some compilers to immediately stop, e.g. the Sun compiler.
</p>
</li>
<li>
<p>
Sent directly yo Julie
</p>
</li>
<li>
<p>
corrected by Julie on Apr 18 2012
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0091_span_strong_xlanhf_div_by_zero"><strong><span class="green">bug0091</span></strong> :: xLANHF div by zero</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>- see svn 1254, 1255
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.0
</p>
</li>
<li>
<p>
bug report by Ake Sandgren, Umea University and HPC2N, on 10-22-2011.
</p>
</li>
<li>
<p>
See <a href="http://icl.cs.utk.edu/lapack-forum/archives/lapack/msg01195.html">LAPACK Mailing list msg 01195</a>
</p>
</li>
<li>
<p>
corrected by Rodney on Apr 11 2012
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0090_span_strong_xggev_and_xggevx_need_to_unscale_if_necessary_when_there_is_an_error_in_dhgeqz_qz_iteration_failed"><strong><span class="green">bug0090</span></strong> :: xGGEV and xGGEVX: Need to unscale if necessary when there is an error in DHGEQZ (QZ iteration failed)</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong> - see svn 1231
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.0
</p>
</li>
<li>
<p>
bug report by Hong Bo Peng, on 03-19-2012.
</p>
</li>
<li>
<p>
See <a href="http://icl.cs.utk.edu/lapack-forum/archives/lapack/msg01257.html">LAPACK Mailing list msg 01257</a>
</p>
</li>
<li>
<p>
corrected by Julie on Mar 20 2012
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0089_span_strong_unused_external_declarations"><strong><span class="green">bug0089</span></strong> :: unused external declarations</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong> - see svn 1091
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.0
</p>
</li>
<li>
<p>
bug report by Ake Sandgren, Umea University and HPC2N, on 11-16-2011.
</p>
</li>
<li>
<p>
See <a href="http://icl.cs.utk.edu/lapack-forum/archives/lapack/msg01176.html">LAPACK Mailing list msg 01176</a>
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0088_span_strong_uninitialized_variable_bug_in_zherfsx"><strong><span class="green">bug0088</span></strong> :: Uninitialized variable bug in ZHERFSX</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>- see svn 1262, 1263
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.0
</p>
</li>
<li>
<p>
bug report by Mick Pont from NAG on Sat, 30 Nov 2011
</p>
</li>
<li>
<p>
See <a href="http://icl.cs.utk.edu/lapack-forum/viewtopic.php?f=13&t=2893">forum topic 2893</a>
</p>
</li>
<li>
<p>
corrected by Julie on April 11 2012
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0087_span_strong_wrong_call_name_for_xblas_xla_rpvgrw_needs_to_be_xla_gerpvgrw"><strong><span class="green">bug0087</span></strong> :: Wrong call name for XBLAS xLA_RPVGRW, needs to be xLA_GERPVGRW</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong> - see svn 1128
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.0
</p>
</li>
<li>
<p>
bug detected and corrected by Julie
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0086_span_strong_ilaxlr_commit_r1006_reverts_the_change_made_in_commit_r977"><strong><span class="green">bug0086</span></strong> :: ILAxLR:commit r1006 reverts the change made in commit r977</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong> - see svn 1099
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.0
</p>
</li>
<li>
<p>
bug report by Ake Sandgren on Sat, 22 Oct 2011
</p>
</li>
<li>
<p>
See <a href="http://icl.cs.utk.edu/lapack-forum/archives/lapack/msg01149.html"> LAPACK Mailing list msg 01149</a>
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0085_span_strong_xgesvd_problem_in_workspace_computation"><strong><span class="green">bug0085</span></strong> :: xGESVD Problem in Workspace computation</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong> - see svn 1207
</p>
</li>
<li>
<p>
Present in LAPACK 3.4.0
</p>
</li>
<li>
<p>
bug report by Marco on Nov 18th 2011
</p>
</li>
<li>
<p>
See <a href="http://icl.cs.utk.edu/lapack-forum/viewtopic.php?f=2&t=2861&p=7686#p7686">forum topic 2861</a>
</p>
</li>
<li>
<p>
Problem in Workspace computation
</p>
</li>
<li>
<p>
corrected by Julie on Jan 6 2012
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_strong_span_class_green_bug0028_span_strong_failure_of_convergence_of_dhgeqz_for_some_specific_matrix_pencils"><strong><span class="green">bug0028</span></strong> :: failure of convergence of DHGEQZ for some specific matrix pencils</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
<strong>CORRECTED</strong>
</p>
</li>
<li>
<p>
reported by Vasile Sima on Thu Jan 22 2009