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Author SHA1 Message Date
Evgenii Stratonikov
c5fb08aece Speed up gogf127.Mul() 
Cache results of the shift. Also add test for checking if
implementation can work when result is one of the arguments.
 2019-10-11 11:50:33 +03:00
fyrchik
b27c17ce19
Merge pull request #17 from nspcc-dev/fix/refactoring 
Remove `unsafe` from code
 2019-10-10 12:48:58 +03:00
Evgenii Stratonikov
1d4e7550fc Use macros in AVX hash implementation 2019-10-10 11:29:40 +03:00
Evgenii Stratonikov
f296adb043 Remove usage of unsafe 2019-10-10 11:04:15 +03:00
fyrchik
5142f695cf
Merge pull request #16 from nspcc-dev/feat/cpuid 
Move cpu id to a separate package
 2019-10-09 18:18:41 +03:00
Evgenii Stratonikov
782ed7554b Use macros in asm code 2019-10-09 18:11:53 +03:00
Evgenii Stratonikov
43033eedb1 Provide minimum go version in go.mod 2019-10-09 18:06:26 +03:00
Evgenii Stratonikov
fc059cac87 Use AVX2 only if AVX is also present 2019-10-09 18:03:39 +03:00
Evgenii Stratonikov
648b1deca7 Move cpuid facility to separate package 2019-10-09 18:03:35 +03:00
fyrchik
2470efda43
Merge pull request #15 from nspcc-dev/fix/cpu_features 
Implement matrix multiplication with pure Go
 2019-10-09 17:42:04 +03:00
Evgenii Stratonikov
f613ab2c25 Implement matrix multiplication with pure Go 
Set suitable backend for GF127 arithmetic for Concat(), Sum() etc.
 2019-10-09 12:31:47 +03:00
Evgeniy Kulikov
06362477ed
Merge pull request #13 from nspcc-dev/fix/cpuid 
Detect CPU features in Sum()
 2019-10-04 18:00:24 +03:00
Evgenii Stratonikov
38df9b2c63 Detect CPU features in Sum() 2019-10-04 17:58:42 +03:00
fyrchik
083d0ff054
Merge pull request #12 from nspcc-dev/feat/cpu_features 
Determine available features through CPUID
 2019-09-04 12:01:42 +03:00
Evgenii
63e8eeac86 Determine available features through CPUID 2019-09-04 11:47:44 +03:00
fyrchik
16d4da0a1d
Merge pull request #11 from nspcc-dev/feature/pure_go 
Implement hashing in pure go
 2019-09-04 10:52:02 +03:00
Evgenii
7c12188650 Perform allocation outside of mulBitRightPure 2019-07-19 19:04:44 +03:00
Evgenii
6c75cc0871 Add pure Go hash implementation 2019-07-19 18:59:43 +03:00
fyrchik
33f1403c28
Merge pull request #10 from nspcc-dev/feature/API_refactor 
Add possibility to use different implementations in cli
 2019-07-19 18:26:26 +03:00
Evgenii
c3cfe63e64 Add possibility to use different implementations in cli 
Also make API smaller and more consistent and fix typos in documentation.
 2019-07-19 18:24:30 +03:00
fyrchik
826ed77561
Merge pull request #9 from nspcc-dev/feature/AVX2_inline 
Inline asm function in loop for AVX2 implementation
 2019-07-19 17:54:25 +03:00
Evgenii
c68e38b943 Inline asm function in loop for AVX2 implementation 
Right now AVX2 implementation looses to C binding in speed.
This is probably, because of 2 things:
1. Go does not inline `mulBitRightx2` in loop iteration.
2. `minmax` is loaded every time from memory.

In this PR:
1. Unroll `mulBitRightx2` manually and use `mulByteRightx2` instead.
2. Generate `minmax` in place without `LOAD/LEA` instructions.
 2019-07-19 16:11:06 +03:00
fyrchik
dd15c90530
Merge pull request #8 from nspcc-dev/pureGo 
Add pure-go GF(2^127) implementation
 2019-07-19 12:06:24 +03:00
Evgenii
5c2544cf3b Add pure-go GF(2^127) implementation 2019-07-19 12:04:16 +03:00
fyrchik
5c06a9fa8f
Merge pull request #7 from nspcc-dev/feat/mbpers 
Report benchmark results in MB/s
 2019-07-10 13:15:00 +03:00
Evgenii
bd43de6056 Report benchmark results in MB/s 2019-07-10 12:07:54 +03:00
fyrchik
62a3dafe71
Merge pull request #6 from nspcc-dev/fix/tests 
Use testify/require for testing
 2019-06-24 11:58:28 +03:00
Evgenii
9a258e8741 Add test for marshalling/unmarshalling 2019-06-24 11:02:42 +03:00
Evgenii
d9e26aa6de Use testify/require for testing 2019-06-24 10:56:15 +03:00
fyrchik
500c652dcc
Merge pull request #5 from nspcc-dev/feat/sl2avx2 
Make use of AVX2 in Sum() by default

Add benchmarks regarding AVX vs. AVX2 performance.
 2019-06-24 10:34:58 +03:00
Evgenii
ec6649ba1c Add benchmark result to README 2019-06-24 10:33:00 +03:00
Evgenii
ad8c7bce1b Fix type assertions 2019-06-24 10:07:16 +03:00
Evgenii
e1d9fc8058 Use testify in tests 2019-06-21 23:18:16 +03:00
Evgenii
4b11f50264 Fix error in AVX2 implementation 2019-06-21 23:10:08 +03:00
Evgenii
eaeceead2f Add benchmarks 2019-06-21 22:40:17 +03:00
Evgenii
9485f49f3b Get rid of unsafe usage and add tests 2019-06-21 22:32:32 +03:00
Evgenii
a967cc9d3d Make use of AVX2 in Sum() by default 2019-06-21 18:47:01 +03:00
fyrchik
f197b9e890
Merge pull request #4 from nspcc-dev/feat/avx2 
Add partial AVX2 support (multiplication by 10 and 11)
 2019-06-21 17:56:45 +03:00
Evgenii
4618e1484c Add partial AVX2 support (multiplication by 10 and 11) 
AVX2 permits working with 256-bit registers. Thus we can
multiply 2 GF(2^127) elements in parallel.
This commit adds 2 such functions for multiplication by 10 and 11).
 2019-06-21 17:45:49 +03:00
Evgeniy Kulikov
6b644651fa
Rewrite tests (#3) 
- rewrite tests
- remove gomega from deps
 2019-05-29 14:10:17 +03:00
Evgenii
d5efd8bdce add SubtractR/L operation on hashes 
- add Inverse operation to sl2
- fix a bug in xN()
 2019-01-29 16:11:50 +03:00
Evgenii
ebb124e812 add random GF(2^127)-element generator 2019-01-29 14:25:17 +03:00
Evgenii
b380bca1d2 add inversion function 2019-01-29 14:11:08 +03:00
Evgeniy Kulikov
79ebc0e583
Enable CircleCI (#2) 
* Enable CircleCI

* fix working directory
 2019-01-03 13:26:32 +03:00
Evgeniy Kulikov
460d68432a
Merge pull request #1 from nspcc-dev/fix/fmt 
Fix formatting
 2019-01-03 11:07:46 +03:00
Evgeniy Kulikov
42499b9eb0
Fix formatting 2019-01-03 11:04:43 +03:00
Evgeniy Kulikov
5cf44c62ac
Initial 2018-12-29 16:04:17 +03:00