gsoc2010-fftw-neon

Git repository for activities relating to FFTW optimization for NEON-enabled ARM devices.

Activities

• Tuesday April 10 2012

  • Repository

    17:48

    

    hatchrad cloned gsoc2010-fftw-neon/gsoc2010-fftw-neon

    New repository is in hatchrads-gsoc2010-fftw-neon

• Friday March 23 2012

  • Favorite

    18:36

    

    Evan S started watching gsoc2010-fftw-neon/gsoc2010-fftw-neon

• Thursday June 30 2011

  • Repository

    21:28

    

    chickenduck cloned gsoc2010-fftw-neon/gsoc2010-fftw-neon

    New repository is in chickenducks-gsoc2010-fftw-neon

• Monday June 27 2011

  • Repository

    12:39

    

    cnga cloned gsoc2010-fftw-neon/gsoc2010-fftw-neon

    New repository is in cngas-gsoc2010-fftw-neon

• Tuesday May 10 2011

  • Repository

    23:57

    

    tonyskjellum cloned gsoc2010-fftw-neon/gsoc2010-fftw-neon

    New repository is in tonyskjellums-gsoc2010-fftw-neon

• Thursday April 28 2011

  • Repository

    18:56

    

    kevinsf cloned gsoc2010-fftw-neon/gsoc2010-fftw-neon

    New repository is in kevinsfs-gsoc2010-fftw-neon

• Thursday December 02 2010

  • Repository

    08:31

    

    tjz cloned gsoc2010-fftw-neon/gsoc2010-fftw-neon

    New repository is in tjzs-gsoc2010-fftw-neon

• Monday August 16 2010

  • Push

    13:58

    

    cfriedt pushed 45942471 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 16, 2010 12:01

    final gsoc commit. did several fixups in simd-neon.h . disabled ffmpeg rdft and reodft by default since I havent tested it thoroughly enough. added beginnings of copy acceleration features to kernel, but again, those are disabled by default since I havent tested them thoroughly enough. fixed several bugs that were really killing my project updates, to do with vector strides in simd-neon.h. simd works reliably now.

• Thursday August 12 2010

  • Push

    08:58

    

    cfriedt pushed 9de68f3d to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 12, 2010 08:58

    changed volatile to __volatile__ for consistency with __asm__

  • Push

    08:39

    

    cfriedt pushed dabda4cd to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 12, 2010 08:39

    removed unused FFTComplex *buf from P structure

  • Push

    08:38

    

    cfriedt pushed fe0d8662 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 12, 2010 08:38

    removed undefined fflags_t from P structure

  • Push

    08:10

    

    cfriedt pushed bd2a7db0 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 12, 2010 08:10

    do not need FFMPEG_ALLOC at all.... discovered that I was neglecting several important optimized memory copy routines which could be the primary reason neon simd performance is not that fast

  • Push

    08:07

    

    cfriedt pushed 2cd64363 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 10, 2010 14:44

    added #ifdef HAVE_FFMPEG to proper location in rdft and reodft. added some debugging to neon-simd

• Tuesday August 10 2010

  • Push

    08:24

    

    cfriedt pushed 2 commits to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    master changed from 58a0e94 to 7e23670

    

  • Push

    03:09

    

    cfriedt pushed 58a0e942 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 09, 2010 19:44

    fixed cycle counter (again)... this time it is definitely not stuck in an infinite loop

• Monday August 09 2010

  • Push

    13:22

    

    cfriedt pushed 2 commits to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    master changed from d21eab5 to d226bbb

    

  • Push

    09:26

    

    cfriedt pushed d21eab56 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 09, 2010 09:25

    fixed asm and invalid call to ccnt_read() in kernel/cycle.h. reverted configure.ac due to shell errors in the generated configure. fixed compile errors in *dft-ffmpeg.c

• Sunday August 08 2010

  • Push

    22:37

    

    cfriedt pushed cf173221 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 08, 2010 22:37

    minor changes

  • Push

    22:36

    

    cfriedt pushed a1697d9b to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 08, 2010 22:36

    some minor changes

  • Push

    18:25

    

    cfriedt pushed 7ab41d70 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 08, 2010 18:25

    removed junk under dft/simd/nonportable

  • Push

    18:11

    

    cfriedt pushed 8e767dd9 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on August 08, 2010 18:11

    Changed strategy about ffmpeg fft usage. Using system ffmpeg rather than bundled library for various reasons: 1) architecture agnostic benefits, 2) bundled libraries are evil, 3) less maintenance required. Currently ffmpegs dft and dct transforms are working well. Need to add something to ffmpegs avfft api so that other programs (that might not use av_malloc) can check to see if their buffers are aligned properly.

• Monday August 02 2010

  • Push

    07:23

    

    cfriedt pushed 3 commits to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    master changed from c557968 to 48e13cf

    

• Thursday July 29 2010

  • Push

    21:39

    

    cfriedt pushed c5579682 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on July 29, 2010 21:39

    added comment to clarify why libtoolflags were necessary for ffmpeg fft. corrected declaration of PUBLIK in publik.h .

  • Push

    01:22

    

    cfriedt pushed 0e47e596 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on July 29, 2010 01:22

    added ffmpeg_fft lib to fftw build system. Eventually, the static lib should be taken out and a shared library should be used instead. TODO: write up neon-ffmpeg.c / neon-ffmpeg.h files to register this algorithm with the planner.

• Tuesday July 27 2010

  • Push

    13:49

    

    cfriedt pushed 6 commits to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    master changed from 61c5cd1 to 27cda30

    

• Wednesday July 07 2010

  • Comment

    18:58

    

    Mans Rullgard commented on gsoc2010-fftw-neon/gsoc2010-fftw-neon/4b08631

    Memory input wrong again.

  • Comment

    18:57

    

    Mans Rullgard commented on gsoc2010-fftw-neon/gsoc2010-fftw-neon/4b08631

    The second memory input is wrong. It needs to be (*((f32x2_sz *)((char*)x+ivs))).

  • Push

    14:54

    

    cfriedt pushed 61c5cd17 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on July 07, 2010 14:54

    moved VFMNMSI declaration to proper spot

  • Push

    14:52

    

    cfriedt pushed 058039d2 to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    on July 07, 2010 14:52

    comment correction

  • Push

    14:49

    

    cfriedt pushed 2 commits to gsoc2010-fftw-neon/gsoc2010-fftw-neon:master

    master changed from 4b08631 to 0bc0c87