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[Bug fortran/5900] [g77 & gfortran] Lapack regressions since g77 2.95.2
- From: "david dot billinghurst at comalco dot riotinto dot com dot au" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Oct 2005 02:45:15 -0000
- Subject: [Bug fortran/5900] [g77 & gfortran] Lapack regressions since g77 2.95.2
- References: <bug-5900-849@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #53 from david dot billinghurst at comalco dot riotinto dot com dot au 2005-10-17 02:45 -------
Subject: RE: [g77 & gfortran] Lapack regressions since g77 2.95.2
I agree. All but three of the failures are known LAPACK problems,
>From memory the other three failures just miss the acceptance criteria.
Just for the record, the LAPACK FAQ http://www.netlib.org/lapack/faq.html
states:
"The only known testing failures are in condition number estimation routines in
the generalized nonsymmetric eigenproblem testing. Specifically in sgd.out,
dgd.out, cgd.out and zgd.out. The cause for the failures of some test cases is
that the mathematical algorithm used for estimating the condition numbers could
over- or under-estimate the true values in a certain factor in some rare cases.
Further details can be found in LAPACK Working Note 87."
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=5900