Note: they only work with these 4 stratums:


   {
      "url" : "stratum+tcp://cryptohunger.com:50001",
      "user" : "FnzMEE2fkX31J5EjheNMo8pq2672Q5kjGh",
      "pass" : "xxx",
      "poolname" : "GroestlCoinOptimized"
   },
   {
      "url" : "stratum+tcp://cryptohunger.com:50002",
      "user" : "dSwcxqXiYrZehaiy6sKfQv1NyEtxTXrmrz",
      "normal-hashing" : "true",
      "pass" : "xxx",
      "poolname" : "DiamondCoinOptimized"
   },
   {
      "url" : "stratum+tcp://cryptohunger.com:50003",
      "user" : "AGyE6rqYX2bY1xrmLjBE4gvto8ML1xBuq3",
      "pass" : "xxx",
      "poolname" : "AtheistCoinOptimized"
   },
   {
      "url" : "stratum+tcp://cryptohunger.com:50004",
      "user" : "NLwqTRzxE3zxi9LZmETE5epMoiW6rVmLNX",
      "pass" : "xxx",
      "poolname" : "DokdoCoinOptimized"
   }

They do not work with any other pools. They do not work with cryptohunger.com:3333 either. You'll get HW errors and no accepted shares.
See statistics here: http://cryptohunger.com:81. Payouts every hour. Just use your wallet as login.

Try to rename example.conf into sgminer.conf and run sgminer without parameters. Switch to diamond pool. Will it work now?

Please provide your full command line and I will double check.

Thanks

What are the righ settings for 290s? i only get 13mh/s per card i have the 14.6 beta drive win64, and this are my configurations:
can you also post the righ confs for 7970 and yes i have tried docs.google.com/spreadsheets, another thing why i cant control the speed of my gpu fans?...

290x= 17.97 Mh/s-14.6
280x= 14.68 Mh/s-13.12

nice bump in speed
:-))

My result on groestl:
radeon 5870 (900Mhz, driver ver. 13.12) on the original groestlcoin.cl - 6.535 Mh, and on the optimized groestlcoin.cl - 6.91 Mh = better in 6%
radeon 270x (1180Mhz, driver ver. 14.6b) on the original groestlcoin.cl - 7.5 Mh, and on the optimized groestlcoin.cl - 7.87 Mh = better in 5%
radeon 7850 (1050Mhz, driver ver. 14.6b) on the original groestlcoin.cl - 5.18 Mh, and on the optimized groestlcoin.cl - 5.4 Mh = better in 5%

on myriad-groestl:
radeon 5870 (900Mhz, driver ver. 13.12) on the original myriadcoin-groestl.cl - 12.45 Mh, and on the optimized myriadcoin-groestl.cl - 13.27 Mh = better in 6.5%
radeon 270x (1180Mhz, driver ver. 14.6b) on the original myriadcoin-groestl.cl - 13.47 Mh, and on the optimized myriadcoin-groestl.cl - 12.84 Mh = worse in 5%   
radeon 7850 (1050Mhz, driver ver. 14.6b) on the original myriadcoin-groestl.cl - 9.366 Mh, and on the optimized myriadcoin-groestl.cl - 8.781 Mh = worse in 6%   

270x is only 7.8Mh(driver 14.6b,gpu 1180),how to running at 8.4Mh?

You need to download the optimized kernel binary for 270X and use stratum+tcp://cryptohunger.com:50001
(See 1st post)

Should be: sgminer.exe -k groestlcoin -o stratum+tcp://groestlcoin.biz:3334 -u blablabla -p 1 -I 22 -g 1 --thread-concurrency 11200 --lookup-gap 0 -w 256 --normal-hashing true

Version 1.2.4 of grs-sgminer is now avaiable. See https://bt.irlbtc.com/view/652849 for details.

R9 290 speed increased from 17.1 MH/s to 17.9 MH/s. Other GPUs should get a similar boost.

* now you need to use "-k optimized" if you want to use the optimized kernel.
* lookup-gap and thread-concurrency parameters are now removed. They were only needed for scrypt mining anyways.

PS: Future plans are adding myriad-groestl optimized support

270x on 14.6 driver,use "-k optimized"  get HW,no WU,why?