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Author Topic: [1050 TH] BitMinter.com [1% PPLNS,Pays TxFees +MergedMining,Stratum,GBT,vardiff]  (Read 776428 times)
Turbor
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November 06, 2011, 07:15:17 PM
 #461

 Sad our luck has gone. I hope it changes soon  Cry

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DrHaribo
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November 06, 2011, 07:31:31 PM
 #462

I have the suspicion that something is still not right w/ merged mining.

Since MM began we have mined 4.4 million shares and found 0 BTC and 3 NMC blocks.  That is significantly below the avg and likely far below what can be explained by variance.

Since MM began we have 2245207 accepted proofs of work on NMC side and 116414 rejected. A little over 5% stale, because of the way some miners work, as mentioned earlier.

On NMC side w/ 200K difficulty we would expect to find on average 22 blocks and we have found 3.

We found 4, but without the bug it would have been more. Sad

I'm currently babysitting the server, constantly watching for any problems in case there is another bug left in the merged mining code. Nothing wrong so far since the bugfix, only bad luck.

▶▶▶ Bitminter.com - Your trusted mining pool since 2011.
DrHaribo
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November 06, 2011, 07:34:43 PM
 #463

How the current NMC and BTC rounds look at the moment I am posting this:

Code:
coin | accepted | rejected
------+----------+----------
 NMC  |   255153 |    14332
 BTC  |  2413059 |     4714

Future updates for the website will show these numbers there.

▶▶▶ Bitminter.com - Your trusted mining pool since 2011.
DeathAndTaxes
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Gerald Davis


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November 06, 2011, 07:36:20 PM
 #464

I have the suspicion that something is still not right w/ merged mining.

Since MM began we have mined 4.4 million shares and found 0 BTC and 3 NMC blocks.  That is significantly below the avg and likely far below what can be explained by variance.

Since MM began we have 2245207 accepted proofs of work on NMC side and 116414 rejected. A little over 5% stale, because of the way some miners work, as mentioned earlier.

On NMC side w/ 200K difficulty we would expect to find on average 22 blocks and we have found 3.

We found 4, but without the bug it would have been more. Sad

I'm currently babysitting the server, constantly watching for any problems in case there is another bug left in the merged mining code. Nothing wrong so far since the bugfix, only bad luck.

My bad then I guess I was confused by looking at found blocks + current round stats in live stat view = 4.4 million shares but maybe there is some overlap.  Likely stats need to be separated to show current BTC block, current NMC block as well as a list of BTC blocks and a list of NMC blocks.
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November 06, 2011, 07:50:19 PM
 #465

My bad then I guess I was confused by looking at found blocks + current round stats in live stat view = 4.4 million shares but maybe there is some overlap.  Likely stats need to be separated to show current BTC block, current NMC block as well as a list of BTC blocks and a list of NMC blocks.

Yep, if a proof of work is accepted for both chains, then it is counted for both. I intend to change the live stats so you can see how both BTC and NMC rounds are going.

I could also change the block list so you can filter to show only BTC or only NMC, if that is useful?

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Digigami
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November 06, 2011, 08:46:24 PM
 #466

Guys, we all might be stuck with our current sig images, attempting to change will mean you have no image

https://bitcointalk.org/index.php?topic=51077.msg240368;topicseen#new
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November 06, 2011, 08:49:10 PM
 #467

I could also change the block list so you can filter to show only BTC or only NMC, if that is useful?

I think it would be. Or make two colums, one for BTC one for NMC so its easy to see. While Im at it, perhaps email notification for new found (BTC) block would be nice. Or automated twitter feed or something.  I keep clicking that page to see if we finally found one Smiley

teflone
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November 06, 2011, 10:06:19 PM
 #468

Name-minter....

That is all..

 Grin

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Turbor
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November 06, 2011, 10:31:00 PM
 #469

Mint or die ! Tongue


DrHaribo
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November 06, 2011, 10:47:02 PM
 #470

Guys, we all might be stuck with our current sig images, attempting to change will mean you have no image

https://bitcointalk.org/index.php?topic=51077.msg240368;topicseen#new

Bah... I was just about ready to start work on the dynamic signature banners. Wonder if there's any point now. And I love the way these banners look. Sad Well, maybe they will allow banners with size restrictions, like suggested in that thread.

While Im at it, perhaps email notification for new found (BTC) block would be nice. Or automated twitter feed or something.  I keep clicking that page to see if we finally found one Smiley

Hmm. Or an IRC bot announcing such things. Or maybe a webpage with dynamic news updates. Need to think about this.

Quote
Mint or die ! Tongue

Yes, ma'm  Grin

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conspirosphere.tk
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November 07, 2011, 02:10:38 PM
 #471

We just ended another loooooong round.
Cheers, and many thanks to Steamy.

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November 07, 2011, 02:26:00 PM
 #472

We just ended another loooooong round.
Cheers, and many thanks to Steamy.

What about Ronaghan...  and.. was that like the same hash given to namecoin a winner ?  weird..


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DeathAndTaxes
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Gerald Davis


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November 07, 2011, 02:50:02 PM
 #473

We just ended another loooooong round.
Cheers, and many thanks to Steamy.

What about Ronaghan...  and.. was that like the same hash given to namecoin a winner ?  weird..

Each hash is checked against both Bitcoin and NameCoin target.
As bitcoin target is higher than namecoin all bitcoin solutions should also be namecoin solutions.

On edit:  Steamy also produced a NMC block & BTC block from same POW.

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November 07, 2011, 03:24:57 PM
 #474

Steamy and Ronaghan discovered a new cheat: double blocks!  Cheesy

Or it could be the more correct explanation given by DeathAndTaxes. By the way Steamy's proof of work also produced 2 blocks, 64 and 65.

By my count we now have 59 bitcoin blocks. So 1 more with +5% promotion pay. Get some proofs of work in before it is built!

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DeathAndTaxes
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Gerald Davis


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November 07, 2011, 03:33:08 PM
 #475

Steamy and Ronaghan discovered a new cheat: double blocks!  Cheesy

Or it could be the more correct explanation given by DeathAndTaxes. By the way Steamy's proof of work also produced 2 blocks, 64 and 65.

By my count we now have 59 bitcoin blocks. So 1 more with +5% promotion pay. Get some proofs of work in before it is built!

Ah I see.  I was confused by the different block times but makes sense now.  I'll edit my post to not confuse other people.
Turbor
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November 07, 2011, 05:45:46 PM
 #476

Nice, back in business. I was frustrated and tried out an other pool. What a joke... 5% stales... here i have 15577 shares and 8 stales at the moment. Never again.

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November 07, 2011, 10:13:06 PM
 #477

Nice, back in business. I was frustrated and tried out an other pool. What a joke... 5% stales... here i have 15577 shares and 8 stales at the moment. Never again.

Cheesy Welcome back Grin

We do have some serious bad luck lately, though. To make sure we break the hex, we need all miners to follow these instructions: http://www.youtube.com/watch?v=Ol2DedEhOGI

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DrHaribo
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November 08, 2011, 07:24:06 PM
 #478

Maybe our luck is turning. 2 bitcoin and 8 namecoin blocks being confirmed right now. Cheesy

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November 08, 2011, 07:57:32 PM
 #479

What i don't understand is why sometimes a member finds a namecoin and a bitcoin block at the same time. If i count right we had 4 such doubles. Is that just coincidence ?

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Gerald Davis


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November 08, 2011, 08:16:57 PM
 #480

What i don't understand is why sometimes a member finds a namecoin and a bitcoin block at the same time. If i count right we had 4 such doubles. Is that just coincidence ?

We should find a NMC block EVERYTIME we find a BTC block.

Remember there is only one block header.  The prior NMC block hash is put into coinbase transaction of the BTC block.


So
1) You get a block header to hash from the server.
2) You hash it and check if it matches difficulty for a share.
3) If it does you submit it to the server.
4a) Server checks if it matches difficulty target for BTC
4b) Server checks if it matches difficulty target for NMC

So each share can be:
a) worthless (just used to track work by miners to ensure fair payout)
b) solution for BTC block
c) solution for NMC block
d) solution for both BTC & NMC blocks.

Now right now (and likely in the future) BTC difficulty is HIGHER than NMC.  Thus any share which meets BTC difficulty target meets NMC target.  Using smaller numbers may make it easier to understand.

Say to solve a block you pick a random number between 1 & 100 for each share.
The current target for a valid BTC share is < 10.
The current target for a valid NMC share is < 40.

So:
a share w/ value of 41 is worthless. (type a above)
a share w/ value of 14 is valid for NMC but invalid for BTC (type c above)
a share w/ value of 9 is valid for both NMC & BTC (type d above)

Now you may be wondering how you get a type B.  It would only occur as a timing issue.    While any BTC hash meets the target for a NMC hash if the NMC block has changed the miner is working on a block that can never be a valid NMC hash (no matter how low of  hash is found).  A "perfect pool" (which isn't possible with current miners) would have a way to tell miner the to update the block but still submit work because it might be good for BTC.   Luckily this should be relatively rare.
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