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423 commits 284 branches 59 tags 26 MiB
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25 commits

Author SHA1 Message Date
Jean-Marc Valin
60a009b457 Making codebase C90-compliant 2022-01-19 18:10:44 -05:00
Jean-Marc Valin
4298f2f9e1 Adding support for SSE2 and SSSE3 2021-07-11 03:36:20 -04:00
Jean-Marc Valin
116bcb38fb Adding SSE 4.1 for older platforms 
AVX without AVX2 should now work again too.
 2021-07-10 14:08:01 -04:00
Jean-Marc Valin
e8f70128d5 same conversion cleanup as 3206cec for sgemv_accum8x4() 2021-07-10 01:59:49 -04:00
Jean-Marc Valin
714380e71b More manual unrolling 2021-07-10 01:59:49 -04:00
Jean-Marc Valin
44fe055682 cleanup float<->int conversions 2021-07-10 01:59:49 -04:00
Jean-Marc Valin
60d6eab63d Doing a bit of unrolling to speed things up 2021-07-10 01:59:49 -04:00
Jean-Marc Valin
54abdb6f5d Sparse matrix indexing optimization 
The 4* is now stored in the table to avoid computing it in the loop
 2021-07-10 01:59:49 -04:00
Jean-Marc Valin
d332100808 Representing output pdf as binary probability tree 
Saves on the MDense/softmax computation since we only need to compute
8 values instead of 256.
 2021-07-10 01:59:49 -04:00
Jean-Marc Valin
e35441f2cc Faster activation functions for AVX 
Using rational function approximation for tanh() and sigmoid.
 2021-06-29 04:05:48 -04:00
Jean-Marc Valin
c1535c8ccf Adding option to disable int8 dot products 2021-06-24 17:31:05 -04:00
Jean-Marc Valin
0b9f6bab81 Remove unnecessary mask in exp() approximation 
This isn't necessary since valid exponents can't flip the sign bit
 2021-06-21 01:34:38 -04:00
Jean-Marc Valin
ae2ae5ead6 Remove useless multiply by one 
See bffdcee95 (commitcomment-46372726)
 2021-06-21 01:30:51 -04:00
Jean-Marc Valin
8c3fe6f31d Cleaning up float version 2021-01-16 02:11:21 -05:00
Jean-Marc Valin
83657d0e43 Dot product AVX2 code for non-sparse multiply 2021-01-16 02:11:21 -05:00
Jean-Marc Valin
e695355ba5 some cleanup 2021-01-16 02:11:20 -05:00
Jean-Marc Valin
d87f974431 Vectorizing conversion 2021-01-16 02:11:20 -05:00
Jean-Marc Valin
6b582edbed WIP: remove scalar code from AVX2 code 2021-01-16 02:11:20 -05:00
Jean-Marc Valin
be392e3857 WIP: Got some AVX2 code working 2021-01-16 02:11:20 -05:00
Jean-Marc Valin
2b4652f9f6 WIP: cleanup 2021-01-16 02:11:20 -05:00
Jean-Marc Valin
bce779886d WIP: signed*unsigned arithmetic 2021-01-16 02:11:20 -05:00
Jean-Marc Valin
11736ca9e3 WIP: 8-bit mul 2021-01-16 02:11:19 -05:00
Jean-Marc Valin
c045702e51 Add non-dot-product AVX code 2021-01-16 02:11:19 -05:00
Jean-Marc Valin
8e405b44e0 Improve accuracy of AVX sigmoid 
Reciprocal approximation could cause the sigmoid output to be
greater than 1.0.
 2021-01-16 01:51:39 -05:00
David Rowe
7dc696b9a4 refactored for different machines, sgemv_accum16 using NEON intrisics 
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
 2018-12-10 21:28:29 -05:00