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Author Topic: [1050 TH] BitMinter.com [1% PPLNS,Pays TxFees +MergedMining,Stratum,GBT,vardiff]  (Read 776423 times)
willphase
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October 02, 2012, 08:42:46 PM
 #1821


Yes, this is what roll-ntime is about. Miners are allowed to generate new work to hash by fiddling with the block's timestamp (referred to as "ntime"). This way they don't have to talk to the server several times per second (in the case of fast miners) to get new work. As long as you don't get too far away from actual time this is OK and the block will be accepted by the rest of the bitcoin network.


ah, quite cool!  Thanks for the info!

Will

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October 02, 2012, 10:41:46 PM
 #1822


Yes, this is what roll-ntime is about. Miners are allowed to generate new work to hash by fiddling with the block's timestamp (referred to as "ntime"). This way they don't have to talk to the server several times per second (in the case of fast miners) to get new work. As long as you don't get too far away from actual time this is OK and the block will be accepted by the rest of the bitcoin network.


ah, quite cool!  Thanks for the info!

Will
Ditto!  I finally understand what roll-ntime means!  All I understood before now was that it allows miners to go longer without talking to the server.
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October 03, 2012, 01:01:57 AM
 #1823

I got a suggestion from PsychoticBoy to change the N in PPLNS from 2x difficulty to 4x difficulty. That would be to double the size of the shifts. Please speak up if you have an opinion on it.

As a 24/7 miner, I approve of this suggestion.

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hahahafr
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October 03, 2012, 01:37:32 AM
 #1824

I got a suggestion from PsychoticBoy to change the N in PPLNS from 2x difficulty to 4x difficulty. That would be to double the size of the shifts. Please speak up if you have an opinion on it.

As a 24/7 miner, I approve of this suggestion.
Same here.

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October 03, 2012, 06:39:00 AM
 #1825


Did you get reject after reject in all 4 separate cgminer instances?


Yep this is what I meant.

since then everything was ok. as usual.... I'll try to watch blocks' changes.

Thank you

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abeaulieu
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October 04, 2012, 12:33:52 PM
 #1826

I got a suggestion from PsychoticBoy to change the N in PPLNS from 2x difficulty to 4x difficulty. That would be to double the size of the shifts. Please speak up if you have an opinion on it.

As a 24/7 miner, I approve of this suggestion.
Same here.

I guess I don't really understand that advantage of increasing the N in PPLNS. Miners just want more stability in payment?

I'm still quite impartial. Eventually as the hash rate creeeps up it's going to be necessary. If/When ASICs start being released, we'll probably see a spike on Bitminter with a steady (probably large) increase in hashrate thereafter. At that point N will probably be needed to increase several fold.
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October 04, 2012, 07:04:51 PM
 #1827

If this is talking about increasing how long shifts last from the current approximately 30m to 60m than I am definitely in favor. This will help even out my time when either A) I have to restart a miner or take it down temporarily for maintenance, and B) when I lose connection to BitMinter and my miner switches over to a backup pool for the next hour or two. This will also help with pool hoppers as they would need to remain in the pool that much longer to pull any significant amount of coins from the regulars.

Count my vote as an "AYE".
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October 04, 2012, 08:29:37 PM
 #1828

Yes, increasing PPLNS's N up to 4x Difficulty will definitely reduce variance when you have some downtime. Just like it reduces the variance in the income of a non-24/7 miner, it will also reduce the variance in loss due to downtime for a 24/7 miner. Less chance of a big loss because your miners went down just before we found 3 quick blocks. It would still be a loss, but a smaller one.

It's not possible to pool hop on BitMinter though, and this won't make any difference in that regard. Of course you can move in and out of the pool as you wish, but since you can't predict beforehand whether you get high or low pay you can't "pool hop".

Making pool hopping impossible is really that simple. Just use a fair reward system. It's a shame some pools refuse to do so. And it is outright strange that so many miners still use those pools.

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willphase
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October 04, 2012, 09:50:54 PM
 #1829

I'd certainly support increasing N - there appears to be no downside for people who mine on the pool 24/7 like myself.

Will

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October 04, 2012, 10:25:56 PM
 #1830

I'd certainly support increasing N - there appears to be no downside for people who mine on the pool 24/7 like myself.

Will

concur +1

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October 05, 2012, 01:32:49 AM
 #1831

Yes, increasing PPLNS's N up to 4x Difficulty will definitely reduce variance when you have some downtime. Just like it reduces the variance in the income of a non-24/7 miner, it will also reduce the variance in loss due to downtime for a 24/7 miner. Less chance of a big loss because your miners went down just before we found 3 quick blocks. It would still be a loss, but a smaller one.
...

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October 05, 2012, 03:35:59 AM
 #1832


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WhitePhantom
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October 05, 2012, 03:43:13 AM
 #1833

I'm happy either way.

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October 05, 2012, 08:43:21 AM
 #1834

Yes, increasing PPLNS's N up to 4x Difficulty will definitely reduce variance when you have some downtime. Just like it reduces the variance in the income of a non-24/7 miner, it will also reduce the variance in loss due to downtime for a 24/7 miner. Less chance of a big loss because your miners went down just before we found 3 quick blocks. It would still be a loss, but a smaller one.

It's not possible to pool hop on BitMinter though, and this won't make any difference in that regard. Of course you can move in and out of the pool as you wish, but since you can't predict beforehand whether you get high or low pay you can't "pool hop".

Making pool hopping impossible is really that simple. Just use a fair reward system. It's a shame some pools refuse to do so. And it is outright strange that so many miners still use those pools.

People are dumb, they don't care, mainly. Even the Bitcoin Folks.

DrHaribo
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October 05, 2012, 07:54:39 PM
 #1835

Every once in a while a block change is causing very high load and slow response after the long poll signal. Apparently there are still some miners getting confused and DoSing the server. Most block changes seem to go alright though. I'll have some improvements to mitigate the trouble from those miners soon.

Remember if you use an old cgminer or bfgminer (at least if older than v2.7), grab the latest version!

If you are using DiabloMiner of Phoenix, please make sure you have the name and password correct. These miners think it is a good idea to retry the same password many times per second when the server says it is incorrect.

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Digigami
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October 05, 2012, 09:56:29 PM
 #1836

Maybe a fix for the wrong password retry issue could be to ignore an IP which tries an incorrect user/pass for 1 minute or something? Are you able to tell and maybe contact the miners with the troubled workers? I know I've updated all my cgminers to 2.7.5/6 now so hopefully my rigs aren't causing any issues.
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October 06, 2012, 10:08:33 AM
 #1837

I am having trouble with my biggest worker. It had 3x 7970 gpus and room for one more I added the fourth hd7970 gpu I underclock to save some power. so these 4 get me 2100 hash. sometimes one drops. So to get back to the four I have to kill the other 3 and sign back up.

  I get a rejection notice.  sometimes 2 or 3 or 4 or 5 times. then the gui will pop up and let me restart the 4 gpus. since this work is my biggest about 2000 out of the 3500 hash that I run it is really annoying.  It is also my best work in terms of power use. about 550 -575 watts for the 2000 hash rate. I use bitminter 1.3.0

I use java 7.7?  can't remember but it is the newest one.

  I use windows 7 64 bit.

 I use explorer 9.

 I only use bitminter to mine.

 what can I do to stop the reject notice?

. should I rename the worker?

should i give it a new password?  I tired this and it did not help.


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DrHaribo
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October 06, 2012, 10:19:42 AM
 #1838

what can I do to stop the reject notice?

. should I rename the worker?

should i give it a new password?  I tired this and it did not help.

By reject notice, do you mean the password dialog popping up and saying the name or password is wrong?

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October 06, 2012, 11:06:29 AM
 #1839

I am having trouble with my biggest worker. It had 3x 7970 gpus and room for one more I added the fourth hd7970 gpu I underclock to save some power. so these 4 get me 2100 hash. sometimes one drops. So to get back to the four I have to kill the other 3 and sign back up.
...
Anyone feel free to tell me I'm wrong, but you should get well over 600MH/s for each card.
525MH/s seems awfully slow ... or an incredibly low underclock.
I know if you excessively overclock you can get up to 720MH/s with a 7970

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philipma1957
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October 06, 2012, 11:14:10 AM
 #1840

I am having trouble with my biggest worker. It had 3x 7970 gpus and room for one more I added the fourth hd7970 gpu I underclock to save some power. so these 4 get me 2100 hash. sometimes one drops. So to get back to the four I have to kill the other 3 and sign back up.
...
Anyone feel free to tell me I'm wrong, but you should get well over 600MH/s for each card.
525MH/s seems awfully slow ... or an incredibly low underclock.
I know if you excessively overclock you can get up to 720MH/s with a 7970

 my speed of 525 per gpu is intentional not accidental. I can get the highest watt to hash rating at 525 to 540 hash.
 this set of gpus gets about 640 hash each oc'd so 4x 640 is 2560 hash if I do that I pull close to 900watts.

 if i run
 at 530 hash or 2100 i pull 600 watts so I underclock on purpose as 300 hash for 300 watts is loud hot and not cost effective at my power rate.

██     Please support sidehack with his new miner project Send to :

1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr

 
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