CGAL users discussion list

["Chaman Singh Verma" <>]

On Sat, Nov 29, 2008 at 6:30 PM, Pierre Alliez <> wrote:

hi Poona,

you are right arpack++ is really tricky to compile but I managed to get it to work last year using Visual 2003 and the Intel FORTRAN compiler + TAUCS for the reverse interface (you can use SuperLu though).

best,

Pierre


Chaman Singh Verma a écrit :

Hello,

I am interested in first 100 eigenvalues of a laplacian matrix (arising from 3D triangulated surface to
extract Morse-Simplices). Although I have googled a lot, I couldn't get any good package to this job.
Lapack and Scalapack work for dense matrices and give full spectrum, Arpack++ is buggy and not
compiled with modern compilers.

Any suggestion for robust and reliable modules which is capable of extracting few minimum eigenvalues
from a laplacian matrix will be a great help.

Thanks.
csv
Poona, India

--
Pierre Alliez
INRIA Sophia Antipolis - Mediterranee Project-team GEOMETRICA http://www-sop.inria.fr/members/Pierre.Alliez/
Tel: +33 4 92 38 76 77
Fax: +33 4 97 15 53 95

--
You are currently subscribed to cgal-discuss.
To unsubscribe or access the archives, go to
https://lists-sop.inria.fr/wws/info/cgal-discuss

Hi,
I don't know if SuperLU can be used to extract few eigenvalues.  Is it possible ?
Arpack++ is based on pretty old compilers and despite my hard work, modifying
templates became a big headache.

Thanks.
Chaman Singh