[Scipy-tickets] [SciPy] #189: Add support for p4fftwgel - extremly fast fft for Intel P4

SciPy scipy-tickets@scipy....
Thu Jun 28 04:21:34 CDT 2007


#189: Add support for p4fftwgel - extremly fast fft for Intel P4
---------------------------+------------------------------------------------
 Reporter:  pearu          |        Owner:  pearu
     Type:  enhancement    |       Status:  new  
 Priority:  normal         |    Milestone:       
Component:  scipy.fftpack  |      Version:       
 Severity:  normal         |   Resolution:       
 Keywords:                 |  
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Comment (by pearu):

 There are also libraries like k6fftwgel2, k7fftwgel2 for AMD processors.
 I am not sure if it worth to support these libraries too as now
 fftw3 can use SIMD. See

   http://www.fftw.org/fftw3_doc/SIMD-alignment-and-fftw_005fmalloc.html

 for more information.

 This raises other questions: are numpy arrays properly aligned?
 Can we force numpy arrays to be properly aligned?
 That would be important to get most of the fftw3 performance out.
 If the questions above are important, feel free to close this issue
 and start another one. I guess we need some testing on these issues.

-- 
Ticket URL: <http://projects.scipy.org/scipy/scipy/ticket/189#comment:2>
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