[Insight-users] ITK FFTW vs system FFTW

[Simon Rit]

I should have mentioned it: yes, it is!

On Fri, Apr 12, 2013 at 5:16 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> Is your ITK built Release?
>
>
>
> On Fri, Apr 12, 2013 at 11:13 AM, Simon Rit <simon.rit at creatis.insa-lyon.fr>
> wrote:
>>
>> Hi,
>> We have recently observed on a fedora distribution that FFTW is two
>> times slower when one uses the ITK compilation
>> (USE_SYSTEM_FFTW:BOOL=OFF, default) than when one uses the system fftw
>> (USE_SYSTEM_FFTW:BOOL=ON).
>>
>> We have looked for an explanation in the flags (the Fedora flags are
>> available here http://pkgs.fedoraproject.org/cgit/fftw.git/tree/fftw.spec)
>> but we have not managed to figure it out. Would someone happen to have
>> an explanation and solution?
>>
>> Thanks in advance,
>> Simon
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