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

[Scrappy Do]

I decided to share my BAMT setup for GRS mining. For those, who don't know, BAMT is a very simle plug'n'play Linux distribution which is tailored to do only one thing: mine Scrypt coins. It also boots from 4GB+ flash drive, so you don't need to do any setup, just boot and mine. See https://litecointalk.org/index.php?topic=2924.0

Somehow, I could not get my R9 290 to perform as good in Windows 7. I tried 13.11 and 13.12 drivers. It could only achieve 8.5MHS. With BAMT I go as far as 9.8MHS.


Tested on BAMT 1.3 with Sapphire R9 290 TriX and Gigabyte R9 270X.
Here are the steps:

0. Download precompiled sph-sgminer from https://mega.co.nz/#!5F5kFLAR!tTDIYnsIL4NyBhe4A7nK63S9FREhCkmkSpsih64pIRM.
1. Bamt control \ stop mining sessions.
2. Accessories \ File Manager, browse to /opt/miners/ folder.
3. Rename existing "cgminer" folder to cgminerscrypt.
4. Copy contents of my ZIP file to "cgminer" folder.
5. Step inside the cgminer folder, locate "cgminer" file, right click it.
6. Switch to "Permissions" tab and turn on "Make the file executable".
7. Now go to /etc/bamt/ folder.
8. Backup your existing cgminer.conf to cgminerscrypt.conf.
9. Make cgminer.conf similar to something like this (Use recommended settings for your card, see https://docs.google.com/spreadsheet/ccc?key=0Atmcd1XbwbURdFVhT0w5RXdvcUdKdXVQVUt1blZZSHc#gid=0, this config is for "R9 270X, R9 290, R9 290"):
{
"pools" : [
   {
      "url" : "stratum+tcp://erebor.dwarfpool.com:3345",
      "user" : "YourWalletHere",
      "pass" : "p"
   },
   {
      "url" : "stratum+tcp://grs.cpu-pool.net:3650",
      "user" : "YourLogin",
      "pass" : "YourPass"
   },
   {
      "url" : "192.168.1.7:1441",
      "user" : "u",
      "pass" : "p"
   }
],

"gpu-engine" : "1225,1205,1205",
"gpu-memclock" : "1075,150,150",
"xintensity" : "512",
"thread-concurrency" : "21568,32767,32767",
"gpu-threads" : "1",

"auto-fan" : true,
"temp-cutoff" : "85,95,95",
"temp-overheat" : "80,90,90",
"temp-target" : "72,80,80",
"gpu-fan" : "25-80",
"worksize" : "256",

"api-port" : "4028",
"kernel" : "groestlcoin",
"gpu-powertune" : "20",
"scan-time": "1",
"expiry" : "5",
"queue" : "16"
}

10. Finally, do Bamt control \ start mining sessions.

Note: sph-sgminer webpage https://bitcointalk.org/index.php?topic=475795.0 recommends 4 threads, but somehow this results in dropping hash rate in approx 10 minutes. This happens only in Linux, in Windows it's all ok with 4 threads. So if you have similar problems, try 1 thread.


PS: Use the lowest possible RAM frequency (which is 150Mhz for my R9 290 and 1075 for my R9 270X), high memory frequencies are not needed for GROESTL.

 Is there an update to this guide? Where do you find a matching version of the bamt for this?

[srcxxx]

Is there an update to this guide? Where do you find a matching version of the bamt for this?

This wotks for BAMT 1.6.2 with minor modifications. If you provide the exact problem that you have, I could help.

Or you can download 1.3 here: http://bamt.wikia.com/wiki/Litecoin_BAMT#Versions

[ptic-1]

1000 times less likely to be dom.ed by asics

uuu,,what is this von aparat

[apofis]

With yesterday 15 hours stopped receiving payments from https://cpu-pool.net/grs/ at work there at the speed of 70000 KH / s. Who has the exact same problem?

[enetac]

GroestlCoin (GRS) @GroestlcoinTeam
Now Litecoin has gone ASIC, where will scrypt GPU miners be cared for? #groestlcoin #LTC #FTC #DOGE #anagram pic.twitter.com/OneUsHYBlT

[Kaisey Stephensss]

i don't have nvidia i have gpu cards  saphhire 280x  ..

[LTCMAXMYR]

price is low,diff is high,
it is very low profit to dig ,or even no profit
so many people do not leave，why?

[feeleep]

Guys,

Our pool needs more miners! Spread your hashes a bit to https://www2.coinmine.pl/grs/

feeleep

[pallas]

price is low,diff is high,
it is very low profit to dig ,or even no profit
so many people do not leave，why?

I believe we have some DMD miners on board, waiting for a DMD working pool to come up.
For them, better mine at low or no profit than not mining at all (some can't solo mine for some reason).

[guidosuller]

With yesterday 15 hours stopped receiving payments from https://cpu-pool.net/grs/ at work there at the speed of 70000 KH / s. Who has the exact same problem?

+1 Last Block Found   71979
Time Since Last Block   21 hours 20 minutes 23 seconds

[child_harold]

@MinePoolNet pls check ur GRS pool. Receiving reports of problems. thanks

waiting 4 reply

With yesterday 15 hours stopped receiving payments from https://cpu-pool.net/grs/ at work there at the speed of 70000 KH / s. Who has the exact same problem?

+1 Last Block Found   71979
Time Since Last Block   21 hours 20 minutes 23 seconds

[NoxX]

Curious, difficulty went down like crazy, but unlike yesterday hashrate is stable so far...

[pallas]

Curious, difficulty went down like crazy, but unlike yesterday hashrate is stable so far...

difficulty doesn't depend on hashrate alone.
it depends on how often blocks have been found recently, which in turn depends on luck :-)

[NoxX]

Curious, difficulty went down like crazy, but unlike yesterday hashrate is stable so far...

difficulty doesn't depend on hashrate alone.
it depends on how often blocks have been found recently, which in turn depends on luck :-)

Sure, but going down from 200 to 60 seems like a lot of bad luck

[nrg_wolf]

i wish people would stop screwing with the spread sheet and changing numbers around to unachievable hash rates and clock settings.

[child_harold]

i wish people would stop screwing with the spread sheet and changing numbers around to unachievable hash rates and clock settings.

! example pls

[child_harold]

MINTPAL

Scheduled maintenance on Thursday 8th May at 8:00PM UTC. Expected to last 60-90 minutes, the exchange will be unavailable for this time.

Might wanna withdraw funds just in case
You got 10 mins

[srcxxx]

To all miners on https://cpu-pool.net/grs/!!!

Looks like there are some problems on the pool. Please move to other pools immediately until this is resolved!

Last block that the pool found was 71979, while now it is 75088-th block.
Last hour  statisitcs is also showing 0.

I've notified the operator:

Hi ex_mac!

I have some complaints from miners on your pool that the payments have stopped and now new GRS are accounted.

Could you please double check this and reply to the BTC talk forum!

Thank you
GRS dev (srcxxx)

My pools are (a bit of self promotion here, all fees to towards GRS promo, bounties, etc):
* grs.cryptohunger.com (0.8%, MPOS, nice statistics and graphs, etc, registration necessary)
* groestlcoin.biz (1%, super simple interface, no withdrawal fees, NO registration - just use your wallet as login address). For example: sgminer.exe -k groestlcoin --difficulty-multiplier 0.00390625 -o stratum+tcp://groestlcoin.biz:3333 -u FYEAbFBG3xY5VUtE9GXC56v5UKt4xkoUkb -p x

and of course, you can use other pools mentioned on http://www.groestlcoin.org/pools/


PS: And remember to always have backup pools set up.

[mjsrs]

any news about the short-term developments?

[Italian Technology]

 Solo calculation for Groestl algo is working, just insert your normal SCRYPT hash rate.

I don't think there's a simple formula to convert scrypt hashpower into groestl hashpower, a 7950 and a 5970 have almost the same scrypt hashrate (700-800), but a 7950 has around 6000 KH/s in groestl, while the 5970 has more than double. But I guess using something like grs = scrypt * 12 is close enough for most cards... 

I have two different mining cases with two different set of GPU's, on the first one I have 4 radeon R9 290 and on the other one I have 3 Sapphire TRIX-X R9 280X and they generate 10 times the hashpower they produced on srcypt algorithm