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Author Topic: Difficulty query  (Read 930 times)
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April 18, 2013, 12:25:30 PM
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I am mining (well attempting to) solo mine PPC, with a hash rate of 680 - 690 mh/s.
If I understand it correctly, PPC's current difficulty is 307k, so for me to submit a winning block my best share (using CGMiner) would have to be over 307k.

My issue is after a day of mining, my best share is 1.84k.

So my questions are : Is there anyway to get my GPU to attempt higher shares? Does my best share increase the longer I mine? (e.g mining for 1 day will get 1.4, 2 days 2.8 etc etc)

Any help would be greatly appreciated.
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April 18, 2013, 01:04:24 PM
 #2

I am mining (well attempting to) solo mine PPC, with a hash rate of 680 - 690 mh/s.
If I understand it correctly, PPC's current difficulty is 307k, so for me to submit a winning block my best share (using CGMiner) would have to be over 307k.

My issue is after a day of mining, my best share is 1.84k.

So my questions are : Is there anyway to get my GPU to attempt higher shares? Does my best share increase the longer I mine? (e.g mining for 1 day will get 1.4, 2 days 2.8 etc etc)

Any help would be greatly appreciated.
A share is basically a block, it's difficulty is random. You can only get an avg amount of time before you find a block with a high enough difficulty, but in no way can you control the difficulty of shares.

Your avg time to find a block with 690mh/s at difficulty of 307k is 3 weeks or so.

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April 18, 2013, 01:06:45 PM
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Cheers for the answer.
Does that best share rate seem low for 24 hours mining though? I just restarted CGMiner - 1 hr ago - and the best share is only 131.
All screenshots I see of other users CGMiner output has best shares waaay above mine, so yeah just wondering if I have messed up somewhere.
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April 18, 2013, 01:08:47 PM
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Cheers for the answer.
Does that best share rate seem low for 24 hours mining though? I just restarted CGMiner - 1 hr ago - and the best share is only 131.
All screenshots I see of other users CGMiner output has best shares waaay above mine, so yeah just wondering if I have messed up somewhere.
It's really just luck. For instance, when I mined Bitcoin in 2011 with just 260mh/s my avg time was 20 weeks to find a block, I found it just 6 hours when I started soloing, then 10 days later I got another block. But I have not had one since. Though my best difficulty so far has been one million.


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April 18, 2013, 01:16:01 PM
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I guess I will keep it going for a week or so and see how I go, might get lucky... Undecided then switch back to pool mining.
Thanks very much for the help though.
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