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Author SHA1 Message Date
Mark Borgerding
72de907478 minor doc changes 2003-12-05 00:35:25 +00:00
Mark Borgerding
39d2974fe3 'make snr' now tests 2d ffts 2003-12-04 04:08:52 +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
164ab47a25 *** empty log message *** 2003-11-14 04:20:19 +00:00
Mark Borgerding
63e7df14cf fft prototype code for real fft works 2003-11-14 02:11:57 +00:00
Mark Borgerding
968e277f93 working on real optimization 2003-11-14 01:37:31 +00:00
Mark Borgerding
673c7bafa4 real_fft works 2003-11-12 02:49:04 +00:00
Mark Borgerding
206e28f11c made the factorization a separate routine 2003-11-12 01:09:35 +00:00
Mark Borgerding
140f106743 benchmark utilities now give memory info 2003-11-08 02:48:02 +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
ee3094a0e4 benchmark utilities 2003-11-04 02:11:00 +00:00
Mark Borgerding
4ebf0b5aca aded a CHANGELOG 2003-11-04 02:09:53 +00:00
Mark Borgerding
2788fba0bd added a CHANGELOG 2003-11-04 02:09:48 +00:00
Mark Borgerding
8b4e3bacca minor comments and added some primes 2003-11-04 02:00:01 +00:00
Mark Borgerding
6c8049cc75 slight changes to Makefile 2003-11-04 01:01:37 +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
Mark Borgerding
28551899e2 radix 4 faster 2003-11-01 03:49:53 +00:00
Mark Borgerding
d1df249536 radix3 fixed point now works 2003-10-31 04:01:09 +00:00
Mark Borgerding
b1969544a6 radix 3 still doesn't work for fixed 2003-10-30 03:00:49 +00:00
Mark Borgerding
d4f87befda re-added radix 3 butterfly 2003-10-30 02:02:29 +00:00
Mark Borgerding
ca4c74e07c Woops, one should not test with input of all zeros 2003-10-29 04:29:01 +00:00
Mark Borgerding
97b18f3fef comments 2003-10-27 04:02:11 +00:00
Mark Borgerding
d9fcda04b6 version 0.2 upload to sf 2003-10-26 19:29:36 +00:00
Mark Borgerding
ecb1a76974 added zip creation to tarball make target 2003-10-26 04:25:18 +00:00
Mark Borgerding
1db3d91ee5 getting ready for next release 2003-10-26 04:07:32 +00:00
Mark Borgerding
52b4b9ab5c *** empty log message *** 2003-10-18 01:45:26 +00:00
Mark Borgerding
c239ba2c1c slight code cleanup, comments 2003-10-18 01:39:36 +00:00
Mark Borgerding
bca7fd5151 compiles with -ansi -pedantic 2003-10-18 01:23:34 +00:00
Mark Borgerding
e2470b3a03 *** empty log message *** 2003-10-18 00:33:38 +00:00
Mark Borgerding
a3d3217ae6 *** empty log message *** 2003-10-18 00:32:54 +00:00
Mark Borgerding
6f8bcedc24 radix 3 fixed point still broken 2003-10-17 02:59:32 +00:00
Mark Borgerding
31d4214f44 radix 3 seems to be pretty fast 
fixed point broken for some reason
 2003-10-17 02:34:22 +00:00
Mark Borgerding
73744b908c check point 
fixed does not currently work for radix 3
 2003-10-17 01:26:14 +00:00
Mark Borgerding
317f11e66e starting point for radix 3 
'make test' output
### testing SNR for  2187 point FFTs
#### DOUBLE
snr_t2f = 292.51
snr_f2t = 304.97
#### FLOAT
snr_t2f = 143.46
snr_f2t = 138.03
#### SHORT
snr_t2f = 49.257
snr_f2t = 16.294

#### timing 10000 x 2187 point FFTs
#### DOUBLE
Elapsed:0:05.05 user:3.60 sys:0.54
#### FLOAT
Elapsed:0:02.41 user:1.85 sys:0.23
#### SHORT
Elapsed:0:04.02 user:3.13 sys:0.08
 2003-10-17 00:11:19 +00:00
Mark Borgerding
d6ae498630 took the bitwise and out of the switch case -- may have prevented optimization 2003-10-15 03:45:24 +00:00