Topic: [4+ EH] Slush Pool (slushpool.com); Overt AsicBoost; World First Mining Pool - page 571. (Read 4382714 times)
August 23, 2013, 02:43:12 PM
We all don't know...most of the time it gets valid eventually, so let's wait, but sometimes you are hours busy with mining and it ends up invalid...that's not nice
August 23, 2013, 02:35:46 PM
Today I had a hour and half long round end up invalid so it's not such a huge deal but I have also seen a 4 hour long round going invalid. That's a good chunk of the day gone bad.
I'm not complaining, I just want to know what happens and why a round ends up invalid and what is the justification of it?
I'm not complaining, I just want to know what happens and why a round ends up invalid and what is the justification of it?
August 23, 2013, 02:26:09 PM
I do hope it get fixed...it's a little bit annoying lately
August 23, 2013, 01:03:00 PM
dont know, but the last one isnt invalid
August 23, 2013, 12:33:23 PM
What is the reason for invalid rounds?
August 23, 2013, 10:23:30 AM
Hmmm, looks like it's almost time to take a break while waiting for the BFL 60 -- or at least get a Raspberry hooked up. Profitability after energy cost on my FPGAs is down to a couple bucks a day.
August 23, 2013, 09:26:49 AM
hi Slush,
can the namecoin to be add back to merge mining?
can the namecoin to be add back to merge mining?
That would be nice yes
August 23, 2013, 08:12:12 AM
hi Slush,
can the namecoin to be add back to merge mining?
can the namecoin to be add back to merge mining?
August 22, 2013, 10:34:52 AM
Almost made a post worried about payout..
Then noticed 40450.699 Ghash/s for the pool - wow
Then noticed 40450.699 Ghash/s for the pool - wow
August 22, 2013, 06:39:32 AM
Anyone else has the problem they receive alot less then normal now per block? Normally i receive around 600000 but all of a sudden it hangs on 29000 per block...
edit: fixed
edit: fixed
August 22, 2013, 03:18:41 AM
So why the big fuzz that i have found a block in my statistics lol?
well, you can be happy that you became a part of the bitcoin history
I have still zeros by all my workers. :-(
When there is a non-zero number, will it become clickable and linking to the list of found blocks?
Found blocks
239418
August 21, 2013, 08:25:59 PM
if I have 16 asics pointing to 1 WORKER should I raise the diff?!
All on one machine.
All on one machine.
August 21, 2013, 06:14:56 PM
I do not think it is very difficult. The value of each share you submit is calculated with the following formula:
scoreshare = exp(t/C)
where t is round duration in seconds, and C is a constant, currently 200. This means the value of each share is exponentially growing, so old share have significantly lower value compared to recent shares. So if you stop mining while others don't, your part of total pool score for that round will decrease exponentially. You can read the original post about this reward calculation method here: https://bitcointalksearch.org/topic/m.50002.
Additionally, based on measurement I have found that each hour, t is reset to zero and your score is divided by exp(3600/C). This is probably to prevent an arithmetic overflow (see http://en.wikipedia.org/wiki/Arithmetic_overflow).
Hope this helps,
T
(emphasis by me)scoreshare = exp(t/C)
where t is round duration in seconds, and C is a constant, currently 200. This means the value of each share is exponentially growing, so old share have significantly lower value compared to recent shares. So if you stop mining while others don't, your part of total pool score for that round will decrease exponentially. You can read the original post about this reward calculation method here: https://bitcointalksearch.org/topic/m.50002.
Additionally, based on measurement I have found that each hour, t is reset to zero and your score is divided by exp(3600/C). This is probably to prevent an arithmetic overflow (see http://en.wikipedia.org/wiki/Arithmetic_overflow).
Hope this helps,
T
(Also the whole pool's score is reduced by the same factor, not only yours.) :-)
[edit] (In fact, it's the pool's score that is the candidate for arithmetic overflow, not the your one...) [/edit]
Thank you very much for posting the constants that resulted from your research, Tibor!
I've noticed that the current round (19720) score had been "reset" at about 20 minutes round duration for the first time and then between 1h 21m and 1h 22m for the second time.
I've looked just at this round, haven't examined any other one.
[edit] Next round (19721) first reset at about 1 hour 14 minutes. [/edit]
August 21, 2013, 06:02:46 PM
So why the big fuzz that i have found a block in my statistics lol?
well, you can be happy that you became a part of the bitcoin history
I have still zeros by all my workers. :-(
When there is a non-zero number, will it become clickable and linking to the list of found blocks?
August 21, 2013, 04:15:09 PM
Ah well, whatever...finding a block does not give us any advantages...
August 21, 2013, 04:14:06 PM
Well, it has also to do with luck i guess...in the top 50 list there is someone with several blocks on his name and only hashing with 20Mhash/s 
Yeah, but he could have been hashing with 20 mhash since 2010 and found blocks when it was still profitable to mine with a cpu.
Or he could have started last month with 100 ghash, but is now having network issues, and can only mine with his laptop's 7750 @ work...lol
There is a lot that list doesn't say.
August 21, 2013, 04:13:20 PM
Well, it has also to do with luck i guess...in the top 50 list there is someone with several blocks on his name and only hashing with 20Mhash/s
cuz they found those blocks when 20mh/s was GODLY!
August 21, 2013, 04:01:38 PM
Well, it has also to do with luck i guess...in the top 50 list there is someone with several blocks on his name and only hashing with 20Mhash/s
August 21, 2013, 12:58:47 PM
........And if so, does anyone think I could actually find a block using a 20 gh/s, from my understanding its basically a crapshoot or near impossible. Or was my 1 block in 1 week a total anomaly?
Just wonderwandering here...
I was under the impression our jobs as pool miners was to let the pool know which Nonce isn't the right hash?
If I want Blocks I'd go solo.
August 21, 2013, 11:20:23 AM
But in the long term (years) they should just about equal out.
Just FYI, to equal out over the course of years, you would need a decent amount of speed (50 GH/s+ right now) that continues to grow proportional to overall network speed. Otherwise, you're looking at a time frame of decades/centuries or more :p. Right now, 50 GH/s on average won't even find a block per month, meaning you'll on average see 2-3 difficulty changes between solves. A bad luck round is normally 3-5x expected time frame, which at 50 GH/s [and upgrading each difficulty increase] would be 5-9 months. Extremely bad luck rounds (which do happen) are up to 10x difficulty (and very rarely, even worse).
It would likely take you years to recover from that bad round, assuming you continue to increase your hash rate proportional to the network difficulty the entire time.
Yep. Just more specific. That's all info they can get from the link I provided above. And they can include more variables as well, such as electricity costs, startup costs, etc.
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