LAPACK-3.2 errata file
updated on Sun Feb 01 2009
maintained by J. Langou, U. Colorado Denver
Released
========
(*) bug :: LAPACK-3.2.0 does not have manpages
o reported on Fr. Dec 05 2008 by Tobias Burnus
o manpages generated and released by Julie Langou on Jan 2nd 2009
Improvements in SVN to be released
==================================
(*) change xLARRD (MRRR routines) to deal with some matrices from Godunov
svn :: r630
o improvements provided by Christof Voemel on Tue Jan 27 2009
o commited by Julien Langou (SVN revision 630) on Wed Jan 28 2009
o see: svn log from Julien
Corrected in SVN to be released
===============================
(*) bug :: in xLAQR2 and xLAQR3, access nonallocated part of workspace array WORK during workspace query (LWORK=-1)
svn :: r603
o reported by Edouard Canot (IRISA) on Tue Dec 02 2008 by mail to lapack@cs.utk.edu
o confirmed and corrected by Julien Langou and Edward Smyth
o commited by Edward Smyth (SVN revision 603, on Wed Dec 03 2008)
o see: emails
(*) bug :: illegal memory access in ILACLC,ILACLR, ILADLC,ILADLR,ILASLC,ILASLR,ILAZLC and ILAZLR
svn :: r610, r614
o reported on Fr. Dec 19 2008 on forum topic 854
and on http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/635192e11beadb93
and by email from Tobias Burnus.
o commited by Julien Langou (SVN revision 610) for ILASLR on Dec 19 2008
commited by Jason Riedy (SVN revision 614) for ILACLC,ILACLR, ILADLC,ILADLR,ILASLC,ILASLR,ILAZLC and ILAZLR on Dec 27 2008
o see: svn log from Jason
see: email from Tobias
(*) bug :: illegal memory access in xTFSM
svn :: r622
o reported by Julie and Jason
o commited by Julien Langou (SVN revision 622) on Sun Jan 11 2009
o see: svn log from Julien
(*) bug :: out-of-bound reference in BLAS routines DROTM and SROTM
svn :: r624
o reported/fixed/commited by Julie Langou on Mon Jan 12 2009
o see: svn log from Julie
(*) bug :: wrong leading dimension used in xGHEQZ at line 780
svn :: r632
o reported by Vasile Sima on Thu Jan 22 2009
o commited by Julien Langou (SVN revision 632) on Sun Feb 01 2009
o see: email from Vasile
Confirmed problems -- bug needs to be fixed!
============================================
(*) bug :: 'make install' generates a "*** Error: Time for operations was zero" too easily
(*) bug :: negative flop counts can be generated by 'make install'
o reported by Sergei Steshenko on Thu Nov 20 2008
o see: emails
(*) bug :: in DGESDD, workspace query gives a value smaller than the minimal value given in the header to run the routine
o reported by Guy Bencteux on Sat Dec 06 2008
o see forum topic 846
(*) bug :: workspace query bug with DGEJSV (when only left or right singular vectors desired)
o reported by Allin Cottrell on Tue Jan 15 2009
o confirmed by Julien Langou on Fri Jan 30 2009
o see forum topic 866
o all information sent to Zlatko Drmac
Bug reports -- bug needs to be confirmed!
=========================================
(*) bug :: serious problem in DGESDD: DGESDD returns negative singular values with INFO = 0
o reported by Guy Bencteux on Sat Dec 06 2008
o see forum topic 847
(*) bug :: problem when playing with DGEEV and gfortran optimization flags
o reported by Pauli Virtanen (scipy team) on Sat Dec 06 2008 (email to lapack@cs.utk.edu)
o see: email from Pauli Virtanen
see: http://scipy.org/scipy/scipy/ticket/709
(*) bug :: misleading comment in the header of DGHEQZ, the 2x2 block of the real Schur form are not as claimed
o reported by Vasile Sima on Tue Jan 27 2009
o see: email from Vasile
o more information:
more specifically Vasile is reporting that the comments:
* [...] H contains the upper quasi-triangular
* matrix S from the generalized Schur factorization;
* 2-by-2 diagonal blocks (corresponding to complex conjugate
* pairs of eigenvalues) are returned in standard form, with
* H(i,i) = H(i+1,i+1) and H(i+1,i)*H(i,i+1) < 0.
are not correct
(*) bug :: failure of convergence of DHGEQZ for some specific matrix pencils
o reported by Vasile Sima on Thu Jan 22 2009
o see: email from Vasile
o more information at: lapack known issues
Deprecated routines
===================
(*) dead code :: xLAHRD is now replaced by xLAHR2, xLAHRD is a dead code since LAPACK 3.1