could you fix the pool diff in scrypt? its always Diff 0/0  that's the only thing that I can see needs fixing. That sounds correct. It's very hard to get diff 1 with scrypt. what your saying makes no sense  I mine on litecoinpool.org they start out with pool Diff 32 & if your hash is slow you will get kicked down to 16 or 8 but no lower & when I use bfgminer what do I see Diff 0/0 so that tells me there is something worng with bfgminer when doing scrypt. cgminer v3.7.2 works fine with scrypt 80/16 BFGMiner is showing the correct difficulty numbers. They are just so small they get rounded to 0. "Diff 32" is actually Diff 0.00048828125. cgminer is using the same conversion scheme that pools use, where all difficulties are multiplied by 65536. Except that even cgminer has now dropped that conversion in the block difficulty number. If only that conversion scheme had never been implemented, all this confusion could've been avoided. I guess the conversion scheme was done because decimal numbers are thought of as inconvenient. Because scrypt mining is about a thousand times slower than sha256 on GPUs, it would take a thousand times longer to mine Diff 1 shares. Thus no pool would ever set a real target of even 1 for a worker. Then someone came up with the genius idea of multiplying everything by 65536 so it looks neater. Sheesh. |
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We've been having a few issues with our BitFuries on multipool.us when on BitCoin. Adam is using P2Pool for BTC mining while we have <25 TH/s (enough to get a block per day) to mitigate our risk when mining BTC.
However, because the BitFuries have an in-built stratum proxy that seems to be conflicting in some way with the multipool.us link to P2Pool (ie. mining doesn't work).
Adam is working on the problem his end (Plan A: fixing the stratum server), and we're also working on our own solution (Plan B: installing bfgminer on all BitFuries instead of chainminer so they can connect direct).
I don't want people to think we've abandoned our promise! We will bring the full CipherMine 5 TH/s back to multipool.us. At present we're splitting it between multipool.us and BTCguild. Irritatingly you can't set the BitFuries to failover between pools, only load balance (another reason we're installing bfgminer). I'm hoping that we'll have this resolved by the end of the weekend.
Kate.
BFGMiner has pretty good Bitfury support, and recently cgminer has added some support as well. Unless you run into performance issues, there should be no reason to use chainminer & stratum proxy anymore. |
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Do these miners use the regular BitForce_SC firmware? Or basically the same but just modded to run all engines?
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NOTE FOR POOL OPERATORS: If your pool doesn't appear here please post the pool's statistics as they should appear in the list below. Why Ghash.IO is not listed? Bitcoin ChileProbably because it is a Private pool. There's nothing private about it. Anyone can register an account on CEX.IO, after which they can mine on Ghash.IO using their own hardware, without buying anything from CEX.IO. Also, I was pleased to notice Ghash.IO is already included in organofcorti's weekly pool statistics. Is there an API you are using to pull the stats, or do you have to scrape from their webpage? |
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Zetacoin block reward is listed as 62.5, but today I've mined mostly 31.25 ZET blocks and a couple blocks worth just 12.5 ZET.
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Anyone reading the mail at pool@deepbit.net? The 0.4 BTC I've got stuck here for almost a year has appreciated itself out of the "small amount" league quite clearly. |
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The price of GHS in dollars is insane. Who in their right mind pays $65/GHS when they can buy it cheaper elsewhere?
CEX.IO have mentioned an instrument to short GHS, I still await it with baited breath.
Where are you buying cheaper instant Ghs? This. Stop looking at the dollar price. Even dollar prices that might look ridiculous compared to prices a couple week ago could very well be profitable now BTC-wise. Just nobody is selling. Of course, CEX prices aren't profitable no matter how you look at it, and never have been. |
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Is there anything BFGMiner could do to fix these errors on BFSB hardware without restarting?
BSB 1e: bitfury_init_oldbuf: Giving up after 4 tries
I've noticed that a chip's frequency sometimes drops considerably and it starts spamming that error. Restarting BFGMiner fixes it, unlike when a whole card goes down. Since a simple BFGMiner restart is enough in this case, I'm wondering if this could be fixed automatically when it happens, without even having to restart?
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Has anyone succeed in withdrawing fiat or depositing BTC lately? I'm wondering why the price difference with MtGox has mostly disappeared while that with btce has grown enormously. Obviously there is no arbitrage going on, so I'm wondering which pipes are clogged.
My SEPA withdrawal took only 3 days like usual. |
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Price for the moment is absolutely ridiculous...
I cashed out.
+1 Amazing it holds at this high level, I would love to hear anyone's explanation how is this possible, meaning what drives the people to buy at this near-crash prices when actual hardware (Bitfury, KnC upgrade boards) are so much cheaper per GHs. I know people are desperate to mine with something, but at this price... Nowhere near positive ROI from just mining. That's easy - it's called price manipulation by dodgy Ukrainian CEX staff to rip ya'll off - that's why I got out weeks ago. Otherwise known as a rip-off. IYFTech, seriously, I'm sick of your sh*t. What manipulations? Give me at least one example!  You obviously have too much time, since all you do is post crappy comments on every cex.io thread. Example: https://bitcointalk.org/index.php?topic=321630.0 Proven & admitted by CEX.IO in their official statement that the con came from Ghash.io I'm sorry you don't like factual answers to legitimate questions from forum members. I know you're in love with CEX - most noobs are - that's how they make their money, but calling someone "sh*t" for stating fact simply because you don't like the answer is sad & shows your inexperience. But I forgive you - as you're new here........  Wake up - see through the mist. Can you provide a link to CEX.IO admitting this? |
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Hasek or anyone else in charge.
What's up with the broken commission fees? Are you going to compensate the trading fee loss back to customers? What's the deal with huge lag when cancelling open orders?
+1 on this. Also, just an FYI to anyone doing wires to USA - there appears to be a consistent "intermediary bank" wire charge of $27. I've done 2 withdrawals in the past month and both were hit with that fee, and I've confirmed it is on on my bank's end. He already explained it: The fee has been reset and is now being recalculated which takes 2 seconds per every user(after maintenance server has to re-calculate the last 30days of trading for every user).
While the fee may not be correctly displayed the correct fee is applied when trading. This can be confirmed in your transaction's log.
I haven't verified that the correct fee is actually applied, since I already emptied my account. |
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Do you think it's a good idea to do preorders on this new hardware or should I list it on the site when they're ready to ship? Ready to ship. +1 +1 Ready to ship would be my preference too. To help with that, quickly cancel new unpaid orders, and maybe don't even accept orders from people who've only canceled their orders previously. |
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@hazek are you going to give us an explanation of
1. What happened.
2. Why there was zero communication to users via Twitter/forum/email - Twitter takes 5 seconds to tweet a message.
3. What you have done or will do in order for 1 or 2 not to occur again.
In short we accept there will be technical issues, but your zero communication (MtGox) style of customer relations is not going to do you any favors...
+1 |
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Same problem here, withdrawal confirmation emails not arriving.
Check Spam. Mine always go there. I was able to withdraw all my funds this morning, after some nail biting hours... That's not it, simply not getting the email. Got withdrawal confirmations just fine 2 days ago and received deposit confirmations just fine today. I just tried again, withdrawal emails definitely aren't coming in. Not in spam folder either. I've already received a password reset email and a message about my SEPA withdrawal being completed after problems with withdrawal request mails started happening. So it's just the withdrawal request mails that aren't coming for some reason. |
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I finally got a confirmation mail for my earlier SEPA withdrawal. However, I'm still locked out of my account, because password reset mails aren't coming in. Why on earth does the feature reset passwords immediately, instead of waiting before a user clicks on a link on the email?
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I'm not getting any email from Bitstamp, first noticed this when I tried to withdraw BTC. Once I tried to get the 'forgot my password' email to see if anything's coming in, I got locked out of my account because it likely automatically reset my password to something random. How does that work exactly? Will it reset back to my original password if the reset link isn't used in some time? Or do they really just send your new password in the email?
Contact their support to reset password. What if my email service provider (Office365) has blocked their sending address/server due to some mistake? It seems to be very over-enthusiast about that, I just noticed... Won't be easy to communicate with Bitstamp in that case. I'd like to know which host Bitstamp uses to send emails, so I can ask Office365 support and make sure they aren't blocklisting Bitstamp. Can others get email from Bitstamp? EDIT: I tried to create a new account with an email address on a completely different provider. No mail came through. |
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I'm not getting any email from Bitstamp, first noticed this when I tried to withdraw BTC. Once I tried to get the 'forgot my password' email to see if anything's coming in, I got locked out of my account because it likely automatically reset my password to something random. How does that work exactly? Will it reset back to my original password if the reset link isn't used in some time? Or do they really just send your new password in the email?
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What does "CDF" stand for?
Cumulative distribution function. Aha, well I wish I could say that was helpful. What is the theory of operation behind that term? Did you read wikipedia? In short, it reflects luck. The lower it is, the better the luck is. CDF can tell you the probability of a block being found with a given number of shares. 50% value corresponds to expected value, i.e. neutral luck. 50% is indeed the "median", rather than "mean" (expected value). If my understand is correct, block finding is like a poisson process and number of blocks found should follow poisson distribution. Of course, the rate parameter changes continuously as miners go on and off, and every 2016 blocks at difficulty adjustment. This is correct - the CDF measures the probability that a random variable will be larger or (in this case) smaller than a given random variable. Here, the random variable is the average (d1 shares per round)/network difficulty for a given number of rounds, which is described by the Erlang distribution. You'll notice for example that Itzod, with an average (d1 shares per round)/network difficulty of 1.19 had a CDF of 0.73, with 7 blocks solved. This means that 73% of the time a pool solves 7 blocks, the average (d1 shares per round)/network difficulty will be lower - and luck will be better. OTOH GHash.IO had an average of 1.11 for 261 blocks soved, with a CDF of 0.96, so 96% of the time 261 blocks are solved, the average will be less than 1.11. The more blocks solved, the "narrower" the CDF.I've tried to explain it simply so I've left some things out. If it doesn't make sense, ask again and I'll try to make it a bit more clear. Very good explanation, thanks! I had always wondered how the CDF could vary so much on pools with similar (d1 shares per round)/network difficulty values, but that bolded part made it embarrassingly simple to understand. |
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cgminer + miner.php should be enough for most use cases. Use OpenVPN to make all the rigs connectable if they are spread over multiple sites. You can either define all the rigs manually in myminer.php, or use the multicasting feature of the API if all rigs share the same broadcast domain. To centralize pool management, create a cgminer loop script that fetches pools.conf from a webserver, like this: #!/bin/sh
cd
while true; do
wget http://server.domain/pools.conf -O pools.conf.new -t 1 -T 1
[ -s pools.conf.new ] && mv pools.conf.new pools.conf || rm pools.conf.new
cgminer -c cgminer.conf -c pools.conf
sleep 1
done
Enable quitting through the API, using api-groups or allowing all-around write access. When you want to change pool configuration, edit pools.conf on your webserver and issue the quit command to all rigs with another script, like this: #!/bin/bash
shopt -s nocasematch
if [ -n "$*" ]; then rigs=$*; else rigs="rig1 rig2 rig3"; fi
for rig in $rigs
do nc -w1 $rig 4028 <<< "quit|" >/dev/null
done
With these, you are able to view the status of all rigs from one webpage, and change pool configurations by editing a single text file and running a script afterwards. There have been websites that allow miners to resell their hashrate. The first, GPUMAX, was run by pirateat40 and was decommissioned shortly after his ponzi defaulted. The second, hashpower.com, just wasn't very successful. There were not enough people wanting to buy hashrate at the listed rates, and without buyers, sellers were not profiting either. Likely the site just dwindled into non-existence this year, it doesn't seem to exist anymore. CEX.io only sells hashrate from their partners. Perhaps one could become their partner with 20-50TH. That would probably require some kind of formal contract between CEX.io and the large miner. It's definitely not a case of just creating workers/accounts and selling them, CEX.io needs to have some sort of control and stability guarantee on the GHS. |
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So about 12 hours ago my bitfury miner stopped.
I was wondering what the hell happened. I thought it was my cards or SD card again.
turns out I can mine on slush's pool and elgius but not on s1.ghash.io:3333
not sure wtf happened.
Proper adressess US us1.ghash.io:3333 EU nl1.ghash.io:3334 try use stratum+tcp://us1.ghash.io:3334 ghash.io just had some downtime right at that moment. I'm not sure about stratum proxy, but at least with BFGMiner if you omit the stratum+tcp:// part connecting to ghash.io will take a very long time. Haven't seen any other pool with that kind of issue. Without stratum+tcp://, the miner will try to connect using HTTP at first, and on all other pools, that always fails immediately so it tries stratum next. |
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