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Messages - child_harold

#7
[Copied from my btctalk answer to same Q]

1.If u are experiencing difficulty running suggested/latest miner pls try this tip from the official FAQ:
http://www.groestlcoin.org/faq/

QuoteMy AMD GPU is hashing, but no shares are accepted and I don't see my hashrate on the pool. What's wrong?
Try adding

--difficulty-multiplier 0.0039062500

parameter to your sgminer command line. If your sgminer reports unrecognized option – please update to the recent version from here If this doesn't help – report the problem in bitcointalk thread

Apologies for not including this tip in the tutorial. Will update pdf soon.


2. What core-clock speed r  u running? Have you used TrixX or AFterburner to overclock core and underclock mem as described in the pdf?

thanks
CH


Quote from: bbbbbb2014 on May 13, 2014, 11:54:39 PM
Quote from: child_harold on May 10, 2014, 09:36:42 PM

Download my complete guide for Groestlcoin AMD mining from the official GRS Forum:
http://groestlcoin.org/forum/index.php?topic=23.0

THX!

Hi there!

For some reason, I am not able to push R9 280x pass 6.4 MHash/s mark. I am using the following miner:

https://github.com/badman74/sph-sgminer

I am not able to use your suggested miner as it does not submit any shares at dwarfpool.com. The machine hashes and hashes - AND EVEN IF I MINE with your miner and your suggested settings, I cannot push it over 6.3 MHash/s mark.

The card is in good shape, I have always able to push it when mining Scrypt. GPU clock is set to 1100, mem clock is set to 1500.

Settings I use, are:
    "auto-fan" : true,
    "gpu-fan": "30-99",
    "temp-cutoff" : "95",
    "temp-overheat" : "85",
    "temp-target" : "79",
    "worksize": "256",
    "intensity" : "20",
    "gpu-threads" : "1",
    "thread-concurrency" : "8192",
    "lookup-gap" : "0",
    "vectors" : "1",
    "shaders" : "2048",
    "api-port": "4028",
    "api-listen": true,
    "api-allow": "W:127.0.0.1",
    "failover-only" : true,
    "no-pool-disable": true,
    "no-submit-stale" : true,
    "queue": "0",
    "log" : "5",
    "gpu-powertune" : "20",
    "algorithm" : "groestlcoin",


Iam using BAMT 1.6.0 and I have compiled miners from scratch without any problems. The card is not overheating and I have a good PSU.

#8
I dont think you can reduce cpu footprint of sph - maybe someone knows better...
#9
I have prepared a PDF guide, shortly to be uploaded to site server.
In the meantime you can get it here:
https://mega.co.nz/#!AFxziaoR!TyIyMn34EI3b7Gu2_hHQqkqH4CjWcygHQbGN99Yq8hU