On Mon, May 7, 2012 at 11:53 AM, Satish Balay <balay at mcs.anl.gov> wrote:
> On Mon, 7 May 2012, Barry Smith wrote: > > > > > I am also running complex. > > > > Look in the file dlasq2.f (it will be in the externalpackages > subdirectory of the PETSc directory. Look at line 215, this is where > valgrind has a problem. In my copy > > > > END IF > > * > > * Check for negative data and compute sums of q's and e's. > > * > <------ this is line 215 > > Z( 2*N ) = ZERO > > > > it is a comment, which is not good. Is lione 215 also a comment in your > copy of dlasq2.f? > > > > There are two possible causes I can think of for your problem > > > > 1) PETSc does not allocate enough work space for zgesvd() or > > 2) the BLAS/LAPACK routines have a bug where they sometimes access out > of their work space. > > > > > > Satish, > > > > Can you try the same build options on a Linux machine as close to > Alexander as we have and see if you can reproduce this? > > I can reproduce on my linux laptop. [also on petsc.mcs] Are we forgetting the factor 2 on the workspace? Matt > > Satish -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20120507/7720d028/attachment.html>
