[Insight-developers] FEM Optimization

[Stephen R. Aylward]

Interesting...took 91 seconds on 10/28 :)

s

Luis Ibanez wrote:
> 
> Hi Stephen,
> 
> 
> Thanks a lot for finding a fix for this intrincated problem.
> 
> 
> I just committed the the fixed dsrc2c.c file that you sent me,
> and restored the original FEM files that depend on it.
> 
> 
> The FEM Image Registration test is now running in 42 seconds
> in zion.kitware.
> 
> 
> This test should be clean in tomorrow's dashboard
> 
> 
>   Thanks,
> 
> 
>       Luis
> 
> 
> 
> --------------------------------------------------------------------------------------------------- 
> 
> On 11/7/06, *Stephen R. Aylward* <Stephen.Aylward at kitware.com 
> <mailto:Stephen.Aylward at kitware.com>> wrote:
> 
> 
>     The speed and copyright issues with FEM optimization in the
>     itkFEMRegistrationFilterTest seem to be resolved.
> 
>     I'm sending the changes to Luis to submit to cvs.
> 
>     The changes were made to dsrc2c.c in Insight/Code/Numerics/FEM
>     - Removed zbrent - copyright issue
>     - Removed eqrt1s - copyright issue
>     - Removed eigvss_ - required zbrent
>     - Changed call in eigvns_ to eqrt1s with call to v3p_netlib_tqlrat
>     - Modified chgcon_ to always call eigvns_
>         - Before would call eigvss_ if the matrix used symmetric storage
>            but we've hard-coded itkFEMLinearsystemWrapperItpack
>            to always use nonsymmetric storage
> 
>     The optimizer now runs in a matter of seconds.
> 
>     Stephen
> 
>     --
>     =============================================================
>     Stephen R. Aylward, Ph.D.
>     Chief Medical Scientist
>     Kitware, Inc. - Chapel Hill Office
>     http://www.kitware.com
>     Phone: (518)371-3971 x300
>     _______________________________________________
>     Insight-developers mailing list
>     Insight-developers at itk.org <mailto:Insight-developers at itk.org>
>     http://www.itk.org/mailman/listinfo/insight-developers
> 
> 

-- 
=============================================================
Stephen R. Aylward, Ph.D.
Chief Medical Scientist
Kitware, Inc. - Chapel Hill Office
http://www.kitware.com
Phone: (518)371-3971 x300