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721  Economy / Auctions / Re: 1 share of CoinHoarder's Avalon Batch #3 Group Buy on: May 08, 2013, 01:46:47 PM
One hour left.
722  Other / Beginners & Help / Re: Newbie with CPUminer on: May 08, 2013, 01:38:35 PM
CPU mining isn't quite worth it anymore

Well, some people may have access to spare servers and free electricity)

Even then, I think you have a hard time justifying the mere time and effort it takes to get them started on cpu mining.

It depends on how much hardware is available. I've seen a post by administrator of some university computing cluster somewhere on the Internets (maybe here, on Bitcointalk, I can't remember). He had thousands of CPU cores, large portion of them idle all the time. 10,000 cores give ~50MH/s (for scrypt!) which is about $500 per day! And at least the same worth electricity bill for the institution Sad
723  Other / Beginners & Help / Re: Newbie with CPUminer on: May 08, 2013, 12:51:38 PM
CPU mining isn't quite worth it anymore

Well, some people may have access to spare servers and free electricity)
724  Bitcoin / Hardware / Re: ASICMINER: start selling your ASIC chips on: May 08, 2013, 09:03:17 AM
As far as I understand, the main goal for selling mining hardware is outsourcing of certain bottleneck parts of the process to the buyers.

Asicminer couldn't deploy the boards quickly enough, so they started selling part of them. Avalon had (and still have as one can see from batch 2&3 delays) problems with PCB production, so they started selling chips.

So if at some point, AM has lots of chips which due to some reasons cannot be assembled into boards quickly enough, they will sell it. Until then, there's just no point in it.

And you never know in advance, where exactly the bottleneck will be.
725  Bitcoin / Legal / Re: My girlfriends house in Germany on: May 07, 2013, 03:38:49 PM
Is it possible to see the location of the property within the town on Google Maps or something similar? Thanks.

Seems like this one https://maps.google.com/maps?q=51.384037,11.203936&ll=51.384022,11.203949&spn=0.001403,0.00331&num=1&t=h&z=19
726  Economy / Auctions / Re: 1 share of CoinHoarder's Avalon Batch #3 Group Buy on: May 07, 2013, 03:07:48 PM
Half-time bump)
727  Bitcoin / Pools / Re: [700GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: May 07, 2013, 02:58:04 PM
I'd like to point out some basic difficulty-related considerations here, which I believe were not mentioned in this thread. Please correct me if I am wrong!

Here's how I suggest to determine desired share difficulty. Variance of miner's income depends both on his own share generation variance and the p2pool's block generation variance. Even if you have high hashrate and generate shares every minute or so, you still get payouts only from blocks found by p2pool. One familiar with statistics/probability theory may see that payout variance ((rms deviation) / (estimated value)) after mining for T hours is proportional to
Code:
variance ~ sqrt(((miner's estimated time to share) + (p2pool's estimated time to block)) / T)
At the time of this post, p2pool is running at ~800 GH/s with Bitcoin difficulty ~10M and share difficulty ~1500. At this rate, expected time to block is ~16 hours.
At default share difficulty, estimated time to share for a miner with 1 GH/s is ~1.8 hours, which gives him overall variance coefficient ~sqrt( 16 + 1.8 ). If the miner manually sets his share difficulty to 5000, it will become ~sqrt(16 + 6), which is only ~11% higher.
Similarly, for a miner with 10 GH/s time to share is 0.18 hours, so variance at default difficulty is ~sqrt(16 + 0.18). So he can set his difficulty to 35,000, which gives variance of ~sqrt(16 + 4.2), which is again only 12% higher than default.
Only when a miner's time to share is comparable to (say, 3-5 times smaller than) the p2pool's time to block, increase of share difficulty will have considerable impact on his variance.

Tl;dr: I suggest that reasonable share difficulty for a miner is such, that estimated time to share is a couple of times lower than the p2pool's time to block. Setting it lower will harm small miners (increase their variance) without any serious decrease of the miner's own variance. Setting it higher will increase the miner's own variance.
728  Economy / Auctions / Re: 1 share of CoinHoarder's Avalon Batch #3 Group Buy on: May 06, 2013, 05:41:42 PM
http://yourcoins.org/forums/ seems to be down at the moment. If it doesn't come up till the end of auction, I will carry out share transfer in original thread on Bitcointalk, so have no worries and happy bidding!
729  Economy / Auctions / Re: 1 share of CoinHoarder's Avalon Batch #3 Group Buy on: May 06, 2013, 05:30:04 PM
Timer removed. End time: 2013-05-08+9:47:36
730  Other / Beginners & Help / Re: Newbie with CPUminer on: May 06, 2013, 02:59:00 PM


It was also my thougth. Only I was curious to know why.
[/quote]

You can turn on detailed protocol logging with -P option. It will give you full info on work and shares.
731  Economy / Auctions / 1 share of CoinHoarder's Avalon Batch #3 Group Buy on: May 06, 2013, 02:47:36 PM

1 share = 1BTC of initial investment ~= 0.139% of 7 4-module Avalons (Batch 3) ~= 823MH/s
Fees: ~$0.12/Kwh + 3% hosting fee + pool's fee (yet to be determined) according to the Group Buy conditions.

Original thread: https://bitcointalk.org/index.php?topic=157930.0
Group Buy forums: http://yourcoins.org/forums/index.php?forums/avalon-group-buy.2/
Current share holders: https://www.dropbox.com/s/7b7omfd7hrbk9gs/Ownership%20Percentages%20&%20Profit%20Projections.xls

Time: exactly 2 days from time of this post.
Starting bid: 1.8 BTC
Bidding increments: .01 BTC
Lot sold as a whole.
Bids only in this thread.
732  Other / Beginners & Help / Re: Newbie with CPUminer on: May 06, 2013, 02:16:21 PM

Code:
[2013-05-06 15:46:04] PROOF OF WORK RESULT: false (booooo)

It must say "accepted" or "true".
733  Other / Beginners & Help / Re: Other virtual currencies with AISC? on: May 06, 2013, 02:06:57 PM

You'd be the only one mining NMC tho, Namecoin is very dead   Undecided

NMC can be merged-mined with BTC, which currently gives you 8% more!
734  Other / Beginners & Help / Re: Newbie with CPUminer on: May 06, 2013, 02:05:45 PM
Grab pooler's cpuminer source (https://github.com/pooler/cpuminer), build it.
Mine litecoins or any other scrypt-based currency.
Sell it for bitcoins.
735  Other / Beginners & Help / Re: Ubuntu Help on: May 06, 2013, 01:59:27 PM
What's exactly the problem with it?
736  Other / Beginners & Help / Re: Other virtual currencies with AISC? on: May 06, 2013, 01:57:02 PM
Asics can only mine SHA-256. I am not sure if an ASIC can mine other currencies based on SHA-256. I would think so thought.  Someone please correct me if im wrong.

Yes, you can mine any SHA256d coin with those ASICs.
737  Other / Beginners & Help / Re: Other virtual currencies with AISC? on: May 06, 2013, 01:55:29 PM
Scrypt-based currencies (LTC, NVC, BBQ, MNC, FTC, CNC, BTB, ...) cannot be mined with curret Bitcoin (SHA256d) ASICs.

However, we may see scrypt-ASICs some day. Probably not earlier than in 1,5 years.
738  Other / Beginners & Help / Feathercoin p2pool spam on: May 01, 2013, 03:49:51 PM
Alright, here's my first post.

Something strange is going on in feathercoin p2pool. I am spammed by lots of invalid shares. It began about a day ago. You can see the exact time on any p2pool node graphs page. Look at the traffic graph.

Any thoughts?
739  Other / Beginners & Help / Re: Whitelist Requests (Want out of here?) on: December 16, 2012, 10:16:01 PM
Hello,

Please whitelist me. I'd like to ask a question concerning a specific pool (Itzod) in th pool's official thread (https://bitcointalk.org/index.php?topic=25127). The question is actually about their PPS policy and share of risk between users of the pool. I've read description of the model on their official site and have searched the thread but haven't found an answer.

Thank you.
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