mirror/kissfft
1
0
Fork 0
mirror of https://github.com/mborgerding/kissfft.git synced 2025-05-27 21:20:27 -04:00
Code Issues Packages Projects Releases Wiki Activity
322 Commits 1 Branch 3 Tags 1.2 MiB
36dbc05760
Commit Graph

89 Commits

Author SHA1 Message Date
h.udo
bc40eccbea
[BSD-3-Clause] Convert to SPDX license format 2018-07-19 14:49:00 +01:00
Mark Borgerding
57925fd126 made threadsafe 2010-05-27 22:54:01 -04:00
Mark Borgerding
089923378d working sourecforge bug 2009-11-28 04:14:47 +00:00
Mark Borgerding
68a8b95a47 check for openmp fitness 2009-10-09 18:04:54 +00:00
Mark Borgerding
3df04c8671 openmp directives 2008-08-22 21:43:25 +00:00
Mark Borgerding
48cbba0c55 *** empty log message *** 2008-03-19 19:32:52 +00:00
Mark Borgerding
2cce2ea306 added kiss_fft_next_fast_size() to determine the next number divisible by the radices 2,3,5 2006-06-28 03:25:02 +00:00
Mark Borgerding
f0e7410b0e *** empty log message *** 2006-03-14 14:44:40 +00:00
Mark Borgerding
77968cd25d finally added the change to kiss_fft.c to check for mem == NULL 
was not a bug, but enough people thought it was that I went ahead and changed it.
 2005-12-23 01:33:18 +00:00
Mark Borgerding
3b5dfee961 added kiss_fft_cleanup 
updated Makefiles for long and simd targets
 2005-07-09 03:42:07 +00:00
Mark Borgerding
4be23bffa4 polishing SIMD changes 2005-06-25 04:38:19 +00:00
Mark Borgerding
7f6cbeab2e added simd capability 2005-06-24 03:03:31 +00:00
Mark Borgerding
75ca67f928 updated copyright years 2004-04-04 21:44:34 +00:00
Mark Borgerding
1bbb274965 split out tmpbuf and scratchbuf, since they are only used in certain cases 2004-04-03 02:59:20 +00:00
Mark Borgerding
835c16c582 no longer need casting 2004-04-03 00:27:11 +00:00
Mark Borgerding
e3fe1598f0 bunch of minor code cleanup 2004-02-27 03:45:12 +00:00
Mark Borgerding
71bf5965b8 very minor tweaks to radix 3 code 2004-02-24 02:21:03 +00:00
Mark Borgerding
dda6f9638e replaced void pointers with pointers to forward declared structs 2004-02-24 01:29:25 +00:00
Mark Borgerding
d1e99f297b took laptop timings 
./bm_kiss_float -x 10000 -n 2048

from 1.70 s cpu time
to   1.57
 2004-02-16 13:36:24 +00:00
Mark Borgerding
b1dad2147b made some things const -- doesn't really have an effect under gcc, but it might under some compilers 
added asm target to check to see if the assembly code changes
 2004-02-08 17:10:02 +00:00
Mark Borgerding
26ce35083d ./bm_kiss_float -x 40000 -n 1800 
from
cputime=5.840
to
cputime=5.830
 (yeah yeah, I know its not great)
 2004-02-03 01:37:19 +00:00
Mark Borgerding
f95bd02866 cputime=5.940 
to
cputime=5.840
 2004-02-03 01:13:10 +00:00
Mark Borgerding
210f219648 ./bm_kiss_float -x 40000 -n 1800 
improved from
cputime=6.010
to
cputime=5.940
 2004-02-03 01:05:10 +00:00
Mark Borgerding
8e00ca1877 ./bm_kiss_float -x 10000 -n 1800 
improved from
cputime=1.540
to
cputime=1.490
 2004-02-03 00:59:33 +00:00
Mark Borgerding
9b738dc492 slight fast fir changes 2004-01-30 00:17:01 +00:00
Mark Borgerding
10a4a5c46b 2d fft now uses kiss_fft_stride to avoid buffer copies. 2003-12-29 21:07:19 +00:00
Mark Borgerding
4552a14801 added stride to fft input -- should simplify multi-dimensional FFTs 2003-12-29 18:50:13 +00:00
Mark Borgerding
f4961ed74b fixed a bug with nfft==1 
and added utility for more testing
 2003-12-16 03:43:05 +00:00
Mark Borgerding
559c14b49b changed alloc functions to allow for initialization of user-supplied buffer 2003-12-14 03:02:30 +00:00
Mark Borgerding
72de907478 minor doc changes 2003-12-05 00:35:25 +00:00
Mark Borgerding
f3c4a9e9ca internal checkpoint 
split kiss_fft.c into multiple files.  It seems the best approach, all things considered.
 2003-12-04 02:38:50 +00:00
Mark Borgerding
206e28f11c made the factorization a separate routine 2003-11-12 01:09:35 +00:00
Mark Borgerding
bd23fe8d23 the path I was taking would only work for prime numbers (Galois fields) 2003-11-08 01:42:15 +00:00
Mark Borgerding
e98f9ff29a going to bed 2003-11-07 03:42:14 +00:00
Mark Borgerding
ae305ca400 slightly faster 2003-11-07 03:31:59 +00:00
Mark Borgerding
3a5791f203 slightly faster 2003-11-07 03:23:19 +00:00
Mark Borgerding
1486d89291 faster 2003-11-07 03:04:52 +00:00
Mark Borgerding
e9095a161c generic butterfly slightly slower -- hmmm 2003-11-07 02:39:49 +00:00
Mark Borgerding
a296b09dbf wrong alloc size 2003-11-07 01:06:44 +00:00
Mark Borgerding
cb5312efdc 2d fft seems to work 2003-11-06 03:59:31 +00:00
Mark Borgerding
4c458be5e9 checkpoint -- I don't think I've broken anything (yet) adding 2d fft. 2003-11-04 23:25:49 +00:00
Mark Borgerding
8b4e3bacca minor comments and added some primes 2003-11-04 02:00:01 +00:00
Mark Borgerding
7b4de0aa11 a little faster 2003-11-03 04:30:50 +00:00
Mark Borgerding
ad4ee571aa faster radix5 2003-11-03 04:04:01 +00:00
Mark Borgerding
0403fb3e4a radix 5 a little optimized 2003-11-03 03:48:34 +00:00
Mark Borgerding
3c0c0431e2 radix 5 works, but is 6x slower than fftw 2003-11-03 03:03:16 +00:00
Mark Borgerding
85764e6437 radix 5 doesn't work, but I thik it should. 
just a checkpoint commit
 2003-11-01 16:48:33 +00:00
Mark Borgerding
8ac63adc77 modified time benchmark to repeat same buffer over and over to avoid IO bottlenecks and get more consistent numbers. 2003-11-01 04:44:50 +00:00
Mark Borgerding
471803ca08 removed unused macro 2003-11-01 04:26:02 +00:00
Mark Borgerding
7b7aefe7c4 moved scratch buffer to stack variable 2003-11-01 03:59:43 +00:00