[ANN] profit switching auto-exchanging pool - www.middlecoin.com

[San1ty]

Guys, probably a stupid question, but why aren't we mining primecoin?
Looks like it's pretty profitable.

I don't believe there is a publicly available GPU miner. As far as I know, the GPU mining programs are private. I've been mining primecoin on my CPU, but I don't think it even covers the cost of electricity.

Ok thanks for the fast reply, I had a feeling it was a stupid question .

One more question recently I barely manage to receive 0.04 BTC / Day for 1.2 MH/S isn't that a bit low?
It also looks as if I have some quantity stuck at "Immature Unexchanged Balance (estimated BTC)".

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[h2odysee]

One more question recently I barely manage to receive 0.04 BTC / Day for 1.2 MH/S isn't that a bit low?
It also looks as if I have some quantity stuck at "Immature Unexchanged Balance (estimated BTC)".

I think that is slightly low. There haven't been great coins to mine recently.

I calculate that LTC mining produces 0.0307 BTC per MH/s per day with no fees and a 1% reject rate and 1% orphan rate. So you are still 7.8% more profitable than that.

Maybe someone can double check my math. I just did it using a price of 0.02616 and a difficulty of 838.419.


About your immature unexchanged balance, there does seem to be a bug preventing a few blocks from moving from that state into the unexchanged balance state. But it should be a very small percentage of your immature balance. Most of it is probably NovaCoin blocks still maturing.

[Kuroth]

Yea I think one thing people in this pool need to realize is the BTC per MH/s per day is going to vary from day to day… Up and down based on what Alt Coins are doing..  On my 1.2 to 1.5 MH, I have had payouts in the 0.075 range and in the 0.0415 range..  It’s not like when your mining just BTC or LTC where you know about 99% of that time what you should be getting..


But so far, I do seem to be running about 10% to 15% better here then when I was just mining LTC..  We just have to hope we have better good days then bad over the long run..  And that H20 will continue his great support and always looking for ways to improve… 

[hashhash01]

h2odysee,

I am not currently a member of your pool, i just found about it recently but i certainly would love to, i think it is a great idea and a major relief to miners by simplifying the economic decisions.

I have been reading through the thread to know more about the pool and noticed the profitability hit that you have been experiencing for the last three days and i can relate to that in a different way.

I constantly mine several coins of interest through out the day, for the last few days some coins (specifically WDC & DGC) have been going through a daily difficulty fluctuation cycle, where the difficulty plummets for 3-5 hours and then goes up again and the next day plummets again, these difficulty variations can be quite large (from 3.x or 4.x to 0.x).
For the last 3 days, during the low difficulty period, there have been above average miners (either through your pool, multipool, or even CGwatcher) suddenly switching to the coin, the sudden increase of the total network hash goes too high for that low difficulty that the orphan rate jumps to extreme values (60% - 70% in case of WDC). Although on paper the coin should be highly profitable, in reality sometimes it becomes less profitable than its normal value.

I am not sure what could be the solution to this situation, cause it seams to affect everyone either on your pool or the ones mining at the coin dedicated pool, i believe everyone will be suffering from the high orphan rate. Maybe tuning the amount of hashing power directed to these fast coins during their low difficulty might help.

Meanwhile i will be pointing one of my Rigs to your pool and see how it goes.
Good luck.

[h2odysee]

... everyone will be suffering from the high orphan rate. Maybe tuning the amount of hashing power directed to these fast coins during their low difficulty might help.

They way my pool is set up, there is currently no way to redirect less than all the hashpower to any one coin. Which is a flaw.

But even if I could, in this case I wouldn't reduce our hashpower to DGC and WDC. If the coins were at risk somehow, I might. But the only downside right now is that the orphan rate is high. And that is mitigated by the low difficulty. So things kind of balance out.

[hashhash01]

Thanks for the quick response, i understand tuning the hashing power is not a simple task, it was just a brain storming suggestion.

From my personal experience for the last three days, the low difficulty doesn't fully mitigate the high orphan rate (specially for WDC), my profitability always drops down during these periods.

[romantic1]

Payouts were an hour late today. Profits were 0.0334 BTC per MH/s per day.

My profits were 0.03468 btc per MH/s !

[kirk46]

Accepted MH/s (Last Hour)    Rejected MH/s (Last Hour)    
Total    542.8827                     150.9949

[STT]

This is correct. Pooled mining works by everyone proving they are working on the problem. They don't submit all their shares, the difficulty is set so that you only submit some of your shares. That way you can prove you are working on the puzzle and you can proportion the effort by working out the percentage of everyone's submissions. The problem with a high difficulty for a fast coin is that some people might be working on the puzzle, but never get to submit any shares, therefor they never get to prove they were working on the puzzles - so for some blocks, they will actually miss out on a piece of the pie for that block.

But then the reverse is true because when you do have submitted shares, they will represent a much greater % of the pie than they should be, so in the end although it may appear that high diff is hurting it may not be.

My gut further up this thread was that low diff for the fast coins would help, but now I'm not so sure.

If the block is being solved in minutes or less and the miner has not submitted a share they get nothing and that work or coins are gone forever, its a closed block now.    However the miner has still spent the electricity for a block they worked on but recorded no share for

I see your saying but what if everyone lost shares but that assumes all miners are equally submitting shares at the same rate.   Some are fast, some are on slow links, bad pings or whatever so its not equal and the system favours whoever is sitting closest to the server with the highest hash rate.

  So its very unequal.     It is what it is, people can always leave but its obviously a biased system.  Im just looking at two LTC pools and one has a worse ping or something because its accepting 50% less shares per hour, middle is just the same except exaggerated by this 512diff so it can record absolute zero shares for some or extremely low

620kh, 4 shares in 14 mins which is comparatively better today  [R:5  Reject ratio 56%  discarded due to new blocks 144]

[Damnsammit]

Basically, the pool operator doesn't care about the difficulty because it doesn't affect him.  It might affect the slower miners, but the faster ones and the 3% fees the op receives are not affected by the difficulty at all.

[h2odysee]

Shares are not discrete chunks of work like you think they are. They are hashes you find that are less than the target number.

[clintar]

Looks like the pool is down...

Edit: It's back up now. Nevermind. Just was down for like 5 minutes.

[h2odysee]

Looks like the pool is down...

Back up.

[Jriker1]

Looks like the pool is down...

Yes and my mining system physically stopped responding again.  How does whatever the pool is doing effect a miner to the point it stops responding?  Love this pool but may have to bail.  Never had outages before joining this pool and profitability in some ways is dependent on your miner running.

JR

[h2odysee]

Yes and my mining system physically stopped responding again.  How does whatever the pool is doing effect a miner to the point it stops responding?  Love this pool but may have to bail.  Never had outages before joining this pool and profitability in some ways is dependent on your miner running.

JR

cgminer becomes unstable if it's constantly stopping and restarting. If you aren't already, use CGWatcher. It mostly eliminates the problem.

Edit: Oh, your system crashed? I also think that when cgminer stops and starts, it heats up your GPU more than usual for some reason.

[Jriker1]

Yes and my mining system physically stopped responding again.  How does whatever the pool is doing effect a miner to the point it stops responding?  Love this pool but may have to bail.  Never had outages before joining this pool and profitability in some ways is dependent on your miner running.

JR

cgminer becomes unstable if it's constantly stopping and restarting. If you aren't already, use CGWatcher. It mostly eliminates the problem.

Edit: Oh, your system crashed? I also think that when cgminer stops and starts, it heats up your GPU more than usual for some reason.

That may explain why at one point my miner went to 89 degrees when was running fine at 77 for ages.  System is weird.  Connect a monitor to all the GPU's nothing.  Fans are cool on the GPU so not doing anything.  I have to 10 second power button it so seems to still be in Windows to some extent.

JR

[hendo420]

Yes and my mining system physically stopped responding again.  How does whatever the pool is doing effect a miner to the point it stops responding?  Love this pool but may have to bail.  Never had outages before joining this pool and profitability in some ways is dependent on your miner running.

JR

cgminer becomes unstable if it's constantly stopping and restarting. If you aren't already, use CGWatcher. It mostly eliminates the problem.

Edit: Oh, your system crashed? I also think that when cgminer stops and starts, it heats up your GPU more than usual for some reason.

That may explain why at one point my miner went to 89 degrees when was running fine at 77 for ages.  System is weird.  Connect a monitor to all the GPU's nothing.  Fans are cool on the GPU so not doing anything.  I have to 10 second power button it so seems to still be in Windows to some extent.

JR

I had a problem like this, I just dropped the overclock down a bit and it fixed it.

[ocmoho]

Looks like the pool is down...

Yes and my mining system physically stopped responding again.  How does whatever the pool is doing effect a miner to the point it stops responding?  Love this pool but may have to bail.  Never had outages before joining this pool and profitability in some ways is dependent on your miner running.

JR

wow. i thought i was the only one encountering this.
between the .15 payouts(would be making ~.24 JUST ltc'ing) the miner crashes/freezes, and the fact that for some reason, only when mining in this pool I have nearly 10% less hashrate reported by cgminer, i may have to bail as well, at least until some of the major bugs are fixed.
ive had 3 or 4 out of my 9 miners completely crash and not respond, even when using teamviewer/cgwatcher.
edit: also rejects are getting crazy for me:

[hendo420]

I have had CGminer on my sapphire rig pointed at middlecoin pool running for over a week strait with no crash of cgminer or the rig itself.

If you are seeing low pay out try changing your queue 0, scantime 5, and expiry 5. This will help with the coins with low block times.

[hendo420]

Looks like the pool is down...

Yes and my mining system physically stopped responding again.  How does whatever the pool is doing effect a miner to the point it stops responding?  Love this pool but may have to bail.  Never had outages before joining this pool and profitability in some ways is dependent on your miner running.

JR

wow. i thought i was the only one encountering this.
between the .15 payouts(would be making ~.24 JUST ltc'ing) the miner crashes/freezes, and the fact that for some reason, only when mining in this pool I have nearly 10% less hashrate reported by cgminer, i may have to bail as well, at least until some of the major bugs are fixed.
ive had 3 or 4 out of my 9 miners completely crash and not respond, even when using teamviewer/cgwatcher.
edit: also rejects are getting crazy for me:
http://i255.photobucket.com/albums/hh156/muhammadbintariq2/30percent_zpsd6f651fc.png~original

Yea definitely need to change expiry/scantime/queue.