topic Bug in MKL PZHEEVD? in Intel® oneAPI Math Kernel Library

Bug in MKL PZHEEVD?

mhaeufel — Wed, 08 Feb 2012 14:11:14 GMT

When diagonalizing a Hermitian matrix using MKL's pzheedv I get wrong eigenvalues. I am using the MKL version that ships withcomposerxe-2011.3.174 for LINUX.

With other math libraries I get the correct result.

Has this been previously reported as a bug? Is this fixed in a recent version? Which version would this be?

Thank you very much in advance.

Kind regards,
M.

Bug in MKL PZHEEVD?

mecej4 — Wed, 08 Feb 2012 14:39:39 GMT

Give details of your example, unless you claim that pzheedv gives wrong eigenvalues all the time.

Many claims of MKL giving wrong results have been found to be related to calling MKL incorrectly.

Bug in MKL PZHEEVD?

Ying_H_Intel — Fri, 24 Feb 2012 05:38:46 GMT

Hi M.

It is unknows problem.couldit possible for you toprovide a small test casefor this?

The latest MKL version is mkl10.3 update 9.
and the bug fix lists
http://software.intel.com/en-us/articles/intel-mkl-102-fixes-list/
and
http://software.intel.com/en-us/articles/intel-mkl-103-bug-fixes/

Best Regards,
Ying

Bug in MKL PZHEEVD?

Gennady_F_Intel — Tue, 27 Mar 2012 09:18:24 GMT

Hello again, how about the example of the problem you reported? we cannot investigate the issue w/o any example. all our internal tests passed well.

--gennady