Closed GoogleCodeExporter closed 9 years ago
AMD FFT library usage is now controlled via ocl/Makefile since r1155.
It seems that the backward FFT of the AMD library still produces some errors
which was a known problem for certain power of 2 sizes, where radix4 and radix8
are involved.
With an AMD Radeon HD 5870 2GB and the proprietary AMD device drive driver
Catalyst 12.4 and 12.6 and AMD APPML FFT version 1.6.244 and 1.8 Beta the
problem still exists.
Timing is done using AMD FFT as forward FFT and Apple FFT as backward FFT.
If the Backward FFT of AMD can be used inside a-dda, with a Radeon HD 5870 it
will speedup the FFT part to about a factor of 10 of the arithmetic part.
Original comment by Marcus.H...@gmail.com
on 15 Aug 2012 at 10:09
This issue was closed by revision r1178.
Original comment by yurkin
on 18 Jan 2013 at 7:46
Original issue reported on code.google.com by
yurkin
on 16 Apr 2012 at 1:33