[ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot

[guidosuller]

i need 400x150(height)

[srcxxx]

I've found a nice Android wallet implementation of a wallet and we can fork from it to make GRS wallet.
See this link: https://play.google.com/store/apps/details?id=hashengineering.quarkcoin.wallet

This is the link on how to do this: http://www.hashengineeringsolutions.com/create-an-android-wallet/

I've got a few questions to the community:

1) Do you think having a wallet for Android is important for GRS?

2) Does anybody want to implement it and get a bounty?

Thanks
srcxxx

[guidosuller]

Nice!!! you should create address for donations!!!

[orinoco]

Interesting coin.. seems to be unloved at the moment with all the PoS fashion?

[guidosuller]

My miner very silent!!! Low cost of energy

http://youtu.be/1Dx5tr-GdH0

[srcxxx]

Can somebody try this APK on their fast Android devices and let me know the speed and device name? Note: if you don't know what an .APK is, don't try it.

This is ARM compile of SPH library performing GroestlCoin hashing.
I'm also working on NEON (ARVv7E) version, but getting weird GCC errors, I'll keep you posted.
The source code is here: https://github.com/srcxxx/grhashAndroid

!!!Note: this is NOT a miner!!! It's just a speed test.

PS: This is what I'm getting in ARM emulator :-)

[kingimg]

HI ,I have tried the apk,
result is:10.6216KH
processor:MT 6589T

[magnor]

I tried the apk on my galaxy nexus gsm:

Groestlhash: 10.4264 KH/s

[craigdabbs]

Nexus 4
9.06613 kh

[FiR3]

Cortex A9 Dual Core, 1.0 GHz

[echo00114]

hello
i found yam miner great but not working my i3-2120 sandy-bridge win 7 x64 home premium with sp1 i start the miner and crash windows says yam.exe shuting down
i use yam-yvg1900-M7q-win64-sandy-bridge
but i try generic version and working but i think slow
my cfg :
threads = 4

mining-params = grs:av=0&donation-interval=50
mine = stratum+tcp://echo00114.2:xx@grs.cpu-pool.net:3650/grs


#proxy = socks4a://127.0.0.1:9150
#proxy = socks5://127.0.0.1:1080
compact-stats = 1
print-timestamps = 0

any ideas why not working sandy bridge wersion i try 3 machine same config also not working.
i also trying same machine on debian weezy also not working precompiled sandy-bridge only generic working
i try my old duala core e5700 machine the dual core version also win7 x64 sp1 work fine 
thanx

you have post your kh/s? thanks

hello
i3-2120 core2 version 545 khs approx the generic version 380 khs i write the author and answer me

Note that GRS mining for AVX and AVX2 instruction sets require AES-NI support. AES-NI support required by GRS algorithm implementations
in following builds:

  sandy-bridge
  ivy-bridge
  haswell
  bdver1
  bdver2
  btver2

so i only use core 2 build
bye

[srcxxx]

Thank you for your tests. Looks like we need NEON optimizations to get a good hashrate. Also I'm not sure if I compiled Release or Debug.

I think I added NEON, but now it just crashes emulator. I'll continue research. If you can help, the code is still in https://github.com/srcxxx/grhashAndroid (for those devs, who want to contribute)

Thanks!

[FiR3]

... nope, crashes here too.

[srcxxx]

OK, now NEON should work. Please try this.

On emulator I'm getting this:



!!!Note: this is NOT a miner!!! It's just a speed test. Also, it is single-threaded.

[DubFX]

Dammit that sucks that i broke my nexus 7...would gladly test it.

[child_harold]

Thank you for your tests. Looks like we need NEON optimizations to get a good hashrate. Also I'm not sure if I compiled Release or Debug.

I think I added NEON, but now it just crashes emulator. I'll continue research. If you can help, the code is still in https://github.com/srcxxx/grhashAndroid (for those devs, who want to contribute)

Thanks!

We need multi-core / thread support and AES-NI support
Check this out https://online.tugraz.at/tug_online/voe_main2.getvolltext?pCurrPk=67985

Technical University Graz (tugraz) helped develop Grøstl together Denmark Technical University.

PLlase consult the existing ARM NEON Grøstl implementations with AVX2 and AES-NI support
http://www.groestl.info/implementations.html. Everything is there already!

NEW! The first Grøstl-256 implementation using AVX2 VPGATHERQQ instructions using only 169 instructions per round can be downloaded here.
NEW! A new Grøstl-256 NEON implementation using bitslicing (48.6 cycles/byte on Cortex-A8, Hercules eCAFE) is available in eBASH.
NEW! A vperm implementation of Grøstl-256 using NEON can be downloaded from eBASH. This implementation can serve as a basis for future NEON implementations using ARMv8 AES instructions.
NEW! The first Grøstl-256 NEON implementation running at 45.8 cycles/byte (Cortex-A8, Hercules eCAFE) can be downloaded from eBASH.
NEW! Improved Lightweigth Grøstl implementations have been submitted to eBASH, resulting in an overall 3rd place in XBX.
NEW! The Grøstl-512 AVX2 implementation presented at the 3rd SHA-3 Candidate Conference with 40% less instructions (compared to AVX) can be found here.
NEW! First Grøstl-256 implementation below 10 cycles/byte on Intel Core i7-2600K with AES-NI (see below).

The numbers people are seeing now are nothing compared to what we will with an optimized miner

I believe all the "hard" work has been done

50,000 GRS BOUNTY

Im getting really excited about this now!!!


Democratizing Mining

[luckygenough56]

are you not afraid to burn tablets etc which are fanless ?

[child_harold]

are you not afraid to burn tablets etc which are fanless ?

A good implementation should handle this

Also this is about the ARM servers and PC's of the future

[NoxX]

The CPU / GPU spreadsheet on groestlcoin.org

(https://docs.google.com/spreadsheet/ccc?key=0Atmcd1XbwbURdFVhT0w5RXdvcUdKdXVQVUt1blZZSHc#gid=0)

seems to be read-only. I wanted to put my values in but can't 

[luckygenough56]

are you not afraid to burn tablets etc which are fanless ?

A good implementation should handle this

Also this is about the ARM servers and PC's of the future

Ok that's really nice  u should also consider to make GRS a POS 3% or something, best algo + pos hype = win = next sheet