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Author Topic: [4+ EH] Slush Pool (slushpool.com); Overt AsicBoost; World First Mining Pool  (Read 4328501 times)
Lucko
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April 30, 2013, 05:25:02 PM
 #7261

Ah, idiot strikes again...

Check the fans, the cooler it runs, the better performance you'll get.  Is it the same setup as when you got the 465mhs?  If not I would look at the differences if you can.  What version of cgminer, what version of opencl/driver, over/under clock values, etc.  Although, aside from the over/underclocking I haven't seen too much varience based solely on software version differences.

Cooling would be the first place I would look next...

Temp: 60C
Setup about the same as I can remember but I'm not sure about driver SDK combination
cgminer same...
1249 core
625 mem
no overvoltage

Currently latest drivers and SDK but I have also used some others...

But! Just to check it. I install guiminer right now. For some reason I get 453 out... So isn't all you need to do just delete bin file from cgminer directory to reset opencl for it? What do I have to do?
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April 30, 2013, 05:26:06 PM
 #7262

OVH CEO confirms the security flaw by which slush's pool was compromised:
https://news.ycombinator.com/item?id=5632479
Lucko
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April 30, 2013, 05:28:50 PM
 #7263

Hope Slush gets his BTC back...
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April 30, 2013, 05:36:37 PM
 #7264


Currently latest drivers and SDK

You're doing it wrong.

12.10 drivers work better for mining.


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April 30, 2013, 05:38:18 PM
 #7265


Currently latest drivers and SDK

You're doing it wrong.

12.10 drivers work better for mining.

It actually sounded like he got the problem narrowed down.  He got the expected hash rate with guiminer, so he was going to troubleshoot the issue with cgminer...

I would help there, but I'm not very familiar with cgminer, I pretty much only use guiminer, or bamt sometimes...

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April 30, 2013, 05:41:43 PM
 #7266


Currently latest drivers and SDK

You're doing it wrong.

12.10 drivers work better for mining.

Also had in on... It looks like cgminer issue. What I have to delete to reset openCL for it? I thought I have to delete file like phatk121016Pitcairnv1w256l4.bin but is there more?
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April 30, 2013, 05:55:34 PM
 #7267

I think the point is...

You may be able to make a little more by mining @ a pps pool during the beginning of slush's rounds, then coming on at the back end of a round on slush to get your reward for that block.

BUT, you won't be taking extra profits from everyone else @ slush.  You will still be getting your fair share.  As opposed to mining only right at the beginning of rounds, when you find a very short round, you actually make more than you normally would, and take a percentage of the share from the other miners on slush.

I could be way off base here, but that's how I interpreted it...

So you are saying a miner working for an hour before a block is found is not actually doing anything towards finding the block?
You are contributing little work but getting a big share from the block. The block has the same value no matter how many miners are involved, so those who have been mining continually with slush have to lose out!

Yes, you're viewing a round as one monolithic problem solved by the pool for the network. Except the problem solved is extending a chain, so everytime a block is found on the network the problem changes. It's all a race with randomness thrown in.

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April 30, 2013, 05:58:30 PM
 #7268

Wow, a 35 second block -- only had time for 1 share at 390MH/s  Shocked
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April 30, 2013, 06:01:56 PM
 #7269

Also had in on... It looks like cgminer issue. What I have to delete to reset openCL for it? I thought I have to delete file like phatk121016Pitcairnv1w256l4.bin but is there more?

Deleting the file should be enough, but keep in mind that it may use not the one expect i.e. it searches for the file first in the current folder, then in it's program folder and the rest of the path variable - make sure you delete them all ... search for phatk*.bin

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April 30, 2013, 06:02:49 PM
 #7270

Ok, I am surprised that the scoring system works that way....

It means even if I am an ASIC miner if I have an outage of 90minutes due to a storm then I lose all my shares value. Everyone else profited from my shares. So down time is my enemy.

How does the score system work? (I am sorry for my ignorance!)
There are some resets of the scores also so after a reset you don't get any... 90 minutes is more then enough for reset to accrue... Probably more then once. So even 1000 ASIC wouldn't help... That way I was asking for pool to have a maintenance mode and that way I'm using backup PPS pool in time of maintenance... And also why backup pool is PPS. So I get something out... If the backup pool would use Slush method for short outage I would get close to 0. But then again I could be lucky... For some time I used PPLNS method but I got out about 10% of what I lost so PPS is probably much better... But then again I might be wrong...

Not how the "reset" works. It's more of a "renormalisation".
OK then way my scores goes to 0? If it was renormalisation it would be some small number... And since I have a lot of problems with my miner right now I see score 0 toooooo many times right now...

If you are having problems with your miner, you should probably get those resolved first before complaining about what slush is doing.  Seriously, when my miners are stable, which is almost all the time, my payouts are constant and regular.  I've never had to worry about the score normalizing.
"Re-normalizing" is seen pretty often within the span of a round when you are an ASIC miner. I had no idea that was happening until it was mentioned. (again due to my ignorance of the method)

Any clue if the delay in high difficulty shares affects the score severely?

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April 30, 2013, 06:06:36 PM
 #7271

"Re-normalizing" is seen pretty often within the span of a round when you are an ASIC miner. I had no idea that was happening until it was mentioned. (again due to my ignorance of the method)

Any clue if the delay in high difficulty shares affects the score severely?
Depends on a difficulty... How many shares are you sending per minute?
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April 30, 2013, 06:12:23 PM
 #7272

I think the point is...

You may be able to make a little more by mining @ a pps pool during the beginning of slush's rounds, then coming on at the back end of a round on slush to get your reward for that block.

BUT, you won't be taking extra profits from everyone else @ slush.  You will still be getting your fair share.  As opposed to mining only right at the beginning of rounds, when you find a very short round, you actually make more than you normally would, and take a percentage of the share from the other miners on slush.

I could be way off base here, but that's how I interpreted it...

So you are saying a miner working for an hour before a block is found is not actually doing anything towards finding the block?
You are contributing little work but getting a big share from the block. The block has the same value no matter how many miners are involved, so those who have been mining continually with slush have to lose out!

That's one way of looking at it.  the other way is...  No one knows how long it's gonna be before we find a block.  So I'm going to set my miners and forget them for the best average payout on all blocks.


Because you can say that miners aren't contributing for the first hour of a block, or you could say they are helping to find the block in less than a hour.  It's all relative, math, averages, etc.  Play the averages, it's your best bet.
You can use Automation and basic math strategies to employ that hypothetical exploit. It wouldn't be hard to implement that. Doing complex tasks based on stats is pretty easy with automation.

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April 30, 2013, 06:14:55 PM
 #7273

"Re-normalizing" is seen pretty often within the span of a round when you are an ASIC miner. I had no idea that was happening until it was mentioned. (again due to my ignorance of the method)

Any clue if the delay in high difficulty shares affects the score severely?

I guess re-normalization is affecting all, not just the fastest miners, but you may need some time to find a share after that or after a new block and higher the diff - longer the time and a block found during that time leaves you with lower income.
My hashrate is too low to mess with that, but i would target 10-20 sec per share on average

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April 30, 2013, 06:23:46 PM
 #7274

Nobody from OVH contacted me with any official statement, they even cannot blame for "not giving them enough information". Actually I called them many times and provided them many useful information for "debugging" the issue. So far the official statement from OVH is "not our problems, secure your email better". However, I'll call them tomorrow (again).

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April 30, 2013, 06:37:26 PM
 #7275

Well at lest it wasn't a inside job... Unless it is a cover up... I love conspiracy theory...
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April 30, 2013, 06:37:42 PM
 #7276

Nobody from OVH contacted me with any official statement, they even cannot blame for "not giving them enough information". Actually I called them many times and provided them many useful information for "debugging" the issue. So far the official statement from OVH is "not our problems, secure your email better". However, I'll call them tomorrow (again).

There is probably something in the fine print of their hosting contract that says if they do anything wrong, it's your fault.
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April 30, 2013, 07:15:02 PM
 #7277

Darn - unlucky enough to have missed getting even a single share of that 35 second block....

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April 30, 2013, 07:18:07 PM
 #7278

If anyone is interested about a solution to my problem...

I removed phatk*.bin from folder - no change
I search for phatk*.bin on a disk found it only in that folder
Removed the folder installed it in a diffident location - no change
Installed last version - no change
Added -k poclbm - did the work... I got 468 out... Better then it was...

And the bed news. The last card that I put into computer... It is not working... I will kill the idiot...
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April 30, 2013, 07:26:20 PM
 #7279

I will kill the idiot...

Don't say that in public - if he falls on the way home, you'll be held responsible. Tongue

Good to hear you got it working. 3MH/s is not much and may well be because of some short time luck.

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April 30, 2013, 07:38:37 PM
 #7280

Don't say that in public - if he falls on the way home, you'll be held responsible. Tongue

Good to hear you got it working. 3MH/s is not much and may well be because of some short time luck.
Yes it could be but it is still going up and it is almost 4 now... And it was long enough... I think...

Luckily I got that card for only 50€ and it was the cheapest of them all. And "only" 223 mhesh... So there is some luck... And it is still under warranty and you can't see anything wrong with it. But it was overclocked. Can they see that?
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