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21  Alternate cryptocurrencies / Mining (Altcoins) / Re: Claymore's ZCash AMD GPU Miner v12.1 (Windows/Linux) on: February 24, 2017, 08:20:54 AM
Hmm so I can confirm there is some weird stuff going on with claymore v12 and polaris hash reporting. First shot is claymore 24h average v12.1 right before I switched to optiminer 1.6.2. Second is optiminer after 24 hours. 

Claymore reports exactly 2804 average hashrate miner side which should equal ~2750 poolside after dev fee is taken out. Poolside reports over 100mh less than that though.
Optiminer reports 2734, which is exactly what pool is reporting at 2731

Whats more interesting is that Claymore on a 280x rig reports the exact hashrate minus fee that the pool reports. At first I thought this was either a pool/hashrate bug issue, but the fact that optiminer reports the correct hashrate, and the 280x rigs report correct with claymore.

My guess is that either there is a bug with polaris hash reporting (i hope) or he couldn't reach optiminer performance on polaris, so he bumped his numbers by 5% to make it look like his miner is faster  Cheesy


1. Hashrate is calculated in the same way for all cards, so Polaris cards cannot get different numbers related to 280X calculations. Your idea about adding 5% on polaris is wrong too.
2. You know I don't care about Linux much. In Windows you can easily see that my miner is the fastest for Polaris because the difference is significant; in Linux speeds must be similar. If you get bad numbers on pool and think that it's because of the miner, don't use it, you have a choice. My opinion: it's something related to pool calculation, for ZEC I always get more hashrate variations on pools side than for ETH mining.

Great job Claymore!
I really like your miner. Do you have a full time job, or this is what are you developing all day long? Right now unfortunately the zcash is under 29$. Would be great to have a faster miner Smiley Is there always the opportunity to develop a faster software?
Thank you!
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