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Author SHA1 Message Date
Evgenii Stratonikov
d891a9c591 Restructure code layout 
Provide default implementations in gf127 package and
all optimizations in subpackages. This way it will be easier
to use from a client.
 2019-10-15 13:22:31 +03:00
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