Re: Issues with eigs

[Thomas D. Dean]

On 09/09/18 09:41, Manav Bhatia wrote:
> Please see the discussion here: 
> https://github.com/opencollab/arpack-ng/issues/149#issuecomment-419715128
>
> We were able to identify this to be a bug in lapack that was fixed in 
> lapack v 3.6.
>
> System lapack on Mac provided through the Accelerate framework is an 
> older version of lapack and still has the bug. So, the solution is to 
> replace it with a newer version of lapack.
>
> I replaced this with arpack that links to lapack v 3.8 and am able to 
> get expected results.

Ubuntu 16.04

> dpkg -l | grep -i lapack
ii  liblapack-dev                              3.6.0-2ubuntu2 
                   amd64        Library of linear algebra routines 3 - 
static version
ii  liblapack3                                 3.6.0-2ubuntu2 
                   amd64        Library of linear algebra routines 3 - 
shared version

> dpkg -l | grep -i arpack
ii  libarpack2                                 3.3.0-1build2 
                   amd64        Fortran77 subroutines to solve large 
scale eigenvalue problems
ii  libarpack2-dev                             3.3.0-1build2 
                   amd64        Fortran77 subroutines to solve large 
scale eigenvalue problems (development)

Looks like I should not have this problem???

Tom Dean