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41  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 20, 2011, 08:48:58 AM
1031774 shares with difficulty 92347.59095209...

That with an exponential distribution and 175 GHash/s yields a 1.5e-5 = 0.0015% chance of not finding a block in 7 hours. That's what, once per 66k blocks? The entire network has solved 119k blocks, so either we've been the unluckiest pool ever today, or something is wrong.

Just my .02 BTC.

[Edit: now 7:13 --> 1.06e-5, or once per 94k blocks...]

Statistically we are all sorts of jacked at the moment.

However, we all my might want to consider that maybe its the statistics/my account part of the site that is busted.  I'm not sure if there is an external way to see if we are solving blocks, but the idea that maybe just the front end is broken and mining is functioning properly seems more reasonable than an attack or the numbers provided by VPoro.
42  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 20, 2011, 07:30:51 AM
I've seen blocks take 10 hours to find.  Granted that was back when the pool was around 80 Ghash/s.  It is very unlikely, but still possible to have a block take 6+ hours.  It would have to be a very clever attack for this sort of thing to be accomplished.

Just get some sleep/go to work/go have drinks with your friends and stop refreshing your account page every few minutes Tongue
43  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 18, 2011, 08:34:20 AM
My miners are all back up on Slush's.  Everything seems to be flowing fine on the mining side.
44  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 18, 2011, 07:58:41 AM
Short update:

Site is under ddos, traffic was around 40Mbit/s, so mysql crashed -> getwork server crashed too. I solved it by shutting down the site, so mining is working again. I'm a bit hurry right now, so this solution must be enough for this day, I'm very sorry for troubles. I'll try to fix site (maybe some requests/s limiter per IP?) afternoon UTC...

People are idiots...

That's just lame.  Why someone would ddos a pool.. I guess I'm not ambitious enough to understand.  I'll switch my miners back and cash out at deepbit soon.
45  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 18, 2011, 07:05:39 AM
Somebody had a little script that would automatically switch to another pool if the main pool was down for  some time ...

deepbit.net is almost as big as slush ...

Opportunity cost of sitting idle is too great.  I switched to help make something while I wait for Slush's pool to get up and running again.

I'm sure many others did the same.
46  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 18, 2011, 04:15:10 AM
Seems the pool is down.
47  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 17, 2011, 08:41:06 PM
Bitcoind on webserver crashed 15 minutes after my last check and I was on the trip in the meantime. Restarted, running again. Looks like mndrix has no troubles with last patch solving deadlocks, so I'll run it on pool server soon, too.

Everything is back up, looks like no work was lost either Smiley

Also looks like the variance is being less bitchy recently as well Cheesy

48  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 16, 2011, 12:53:08 AM
3240   2011-04-14 21:38:46   0:34:40   84437   0.17911862    -    invalid

hmm looks like we generated an invalid block..bad luck..

*pout*

Took us almost 4 hours last night for a block, too...and the Network Hash Speed is way lower this morning than usual, though ours is up. Bad luck indeed.

Variance is a bitch.  Hey tomorrow will be better Smiley
49  Bitcoin / Mining software (miners) / Re: python OpenCL bitcoin miner on: April 08, 2011, 04:16:03 AM
I removed one of my video cards for a bit and noticed the poclbm was not using 100% of a cpu core any more.  The second I added back in my 2nd card cpu usage jumped up to 1 full core pure instance of poclbm.  Apparently the high gpu usage is tied to dual card setups.

Although, the problem is not seen on Windows XP.  I have a miner running XP, that has dual 5870s, and poclbm doesn't eat cpu there.  It may only be a Windows 7 issue.

Maybe this can help track it down. 
50  Bitcoin / Pools / Re: Cooperative mining (160Ghash/s) on: April 03, 2011, 10:17:39 PM
Slush,

You list reward as being calculated by this forumla:
(50 BTC - 1 BTC fee) * (shares found by user's workers) / (total shares in current round)

What about transaction fees that get added on to the 50 BTC reward?  It isn't hugely relevant at this point, but transactions fees will become more significant as time goes on, so I'm wondering how your pool handles them.

Thanks Smiley
51  Bitcoin / Project Development / Re: Does WeUseCoins Deserves the Full Bounty? RETAKE on: April 02, 2011, 07:41:02 PM
Yes
52  Bitcoin / Mining software (miners) / Re: python OpenCL bitcoin miner on: March 27, 2011, 05:42:37 AM
Has anyone found some remedies I can get rid of the 100% core usage of poclbm?  I have 2 miners running with my 6970s and they each load up a core on my system.

The system seems to be tied to SDK 2.3 + 69xx cards.  I have two 5870s running on SDK 2.3 also and their instances of poclbm do not suck up much cpu time at all.

I tried the 11.4 RC1 driver that came out a few days ago, no change.  I'm back on 11.2 currently.
53  Bitcoin / Pools / Re: Cooperative mining (150Ghash/s) on: March 25, 2011, 09:14:45 AM
Another question,

Invalid or stale blocks, how often are they expected to show up?
54  Bitcoin / Pools / Re: Cooperative mining (150Ghash/s) on: March 25, 2011, 12:17:25 AM
Can you create a way for users to view the raw data of their daily reward along with the systems daily reward?  I like to gather the data in excel form to create charts and also generate more statistics for my own use, and sometimes getting the numbers by highlighting the points on the graphs can be a frustrating process.

Yes, this can be possible, I'm writing it to my TODO list. As I'm rendering reward graphs in javascript, for advanced users there are those data available already. You can check html source of graph page; there are dates and rewards encoded as json arrays Smiley. Of course it isn't too much user friendly Wink

Thanks Slush, till then I'll view the page source to get the data Smiley
55  Bitcoin / Pools / Re: Cooperative mining (150Ghash/s) on: March 24, 2011, 10:23:52 PM
Slush,

Thanks for you all your hard work creating a fantastic pooled mining system.  I do have one request.

Can you create a way for users to view the raw data of their daily reward along with the systems daily reward?  I like to gather the data in excel form to create charts and also generate more statistics for my own use, and sometimes getting the numbers by highlighting the points on the graphs can be a frustrating process.

That's all, great service, I've been with you since the first slashdot wave and haven't had any complaints Cheesy
56  Bitcoin / Mining / Difficulty change data on: March 18, 2011, 12:27:29 AM
I'm trying to find data on the difficulty levels similar to what was offered at http://nullvoid.org/bitcoin/difficultiez.php

Sadly that site has been down for quite a while.  Does anyone else have this data or know of a place to get it?

Thanks
57  Bitcoin / Mining software (miners) / Re: python OpenCL bitcoin miner on: March 16, 2011, 06:44:20 PM
Has anyone found a fix for the full CPU usage of poclbm with sdk 2.3 and 6xxx cards?

Note: you HAVE to use sdk 2.3 with the 6xxx cards.
58  Bitcoin / Mining software (miners) / Re: python OpenCL bitcoin miner on: February 25, 2011, 05:03:32 AM
Does anyone have an estimate about how much bandwidth poclbm uses for mining?  I'm worried that a x1 slot might not provide enough bandwidth for mining.
59  Bitcoin / Mining software (miners) / Re: python OpenCL bitcoin miner on: February 12, 2011, 06:50:22 PM
I'll test 2.2 and see if it fixes the cpu usage problem soon.

Another question, how often do you guys get invalid or stale blocks?  I'm hooked up with a mining pool.  It seems to me I get 1/25 blocks as stale or invalid.  Is this normal? or should I look into stability issues with my video cards?  They are not overclocked and I haven't had any issues with them gaming.
60  Bitcoin / Mining software (miners) / Re: python OpenCL bitcoin miner on: February 12, 2011, 02:14:13 AM
I'm getting 340000 khash/s on each of my 6970s.  Running Stream SDK 2.3... I will see about downgrading in the near future since I have read 2.2 is faster.

My main question is each of the instances of poclbm is maxing out a core.  I have noticed if I max out all 4 cores with prime95, my khash/s does not increase, so it seems the miner is just wasting cpu cycles?  Is there something I can do to address this or is it a problem with the program?

Win 7 64bit
Cats 11.1a
AMD Stream 2.3
Dual 6970s
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