my small 430Ghash farm (rebuilt at weekend - will tidy cables this weekend)  For the number of devices that is probably the worst cable hell I have seen. You need some twist ties bad  |
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I have noticed that some of my miners consistently lose their connections more often than others. I always run all 3 motherboards on the same pool at the same time. I have 2 Gigabyte 990FXA-UD3 motherboards and an AsRock H61 chipset board. 2 use Windows 7 64 bit, and one of the 990's uses 8.1 64 bit.
It always seems like the 8.1 64 bit 990 MB discons the most often, almost always once a day or more, and usually once a day it just blanks out, and I have to restart it to get it do do anything. Mouse and keyboard won't wake it up. It is an unactivated copy of 8.1, because the same call-in tricks don't work to activate Windows 8 that work on 7, Vista, and XP for YEARS for me, and I refuse to pay for a license. Bill Gates has enough money.
The Windows 7 990 MB is second for disconnects. Sometiems it does and sometimes it doesn't discon when the other 990 goes down.
The AsRock H61 almost never discons, but it does happen once in a while.
My network is as follows: The cable modem goes into a standard Netgear 4 port router with wireless. And from the router, one ethernet cable goes into the mining room to a Cicso 8 port switch, and from there, 3 ethernet cables go to the 3 mining PCs.
So it seems like if one goes down it should affect all three equally.
Could there be certain network settings in the BIOS I should look at on the 990 motherboards? Or a way to adjust the config file code in sgminer 4.1.0 so it can auto-recover itself more easily and from longer outages?
Pirating software and asking for help? Really? You can buy Win 7 and Win 8 OEM licenses for $30 or less. Try a free Linux distro. |
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Roughly how much power did this user have during the time-frame? I think in another thread it was mentioned he had 2PH/s, which at that time was about 1/20th the total network.
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Your solution assumes that mining software and its attached hardware will work in a deterministic fashion - this is far from the truth. For numerous high level work generation reasons two miners will almost certainly not generate the same work based on what they're submitted by the pool. For one, the coinbase is different on a per-miner basis meaning you'd have to force miners to be working on the same work (based on extranonce1 in the stratum protocol). You couldn't leave them connected like that indefinitely since they'd just be working on the same thing as other miners over and over so you'd need to disconnect them shortly afterwards and reconnect. Secondly, the extranonce2 field is almost never going to be in the same base place by the miner as it's dependent on runtime, number of pools, speed of devices etc etc. Finally, hardware does not work in a deterministic fashion with respect to finding shares within a nonce range. The ASIC may discard work having never tried it, stop short of the full nonce range to reload new work, it may stop as soon as it has found one nonce - missing any after that, and some chips famously only cover 3/4 of the nonce range in a matrix type pattern that is non-linear in coverage.
Sadly 1/2 of that went over my head to be honest, but I will read up on it. Would there be a way to have software implement a query to make sure the miner will submit a winning solve (like a test solve) every X number of shares. I guess that would require a protocol change since the pool would have to issue the challenge work. |
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I too have noticed those orphan rates shoot up at GHash.IO along with the block runs. Something is rotten in Denmark.  |
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If you're not willing to outlay a significant amount of money for miners your best proposition would be to host ASICs for others. But the risk involved is that you have to insure them. It's not unheard of for some of these units to arc or catch fire. Last thing you want is to have the place go up in flames and then have 10 miners yelling at you demanding payment for their burned ASICs.
There are a few other people who do collocation - PM them for ideas.
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So, there must be some better pools and services.
And when someone build very good pool - there is a risk it will gain 51% of power.
PS. cex/ghash wouldn't use any bugs and vulnerabilities. It will only discredit bitcoin network and these sites. They have enough profit not to risk in such stupid way.
Because you personally know the intentions of the owners of the pool? For some people a million might seem like a lot of money. There are many billionaires in the world who have enough wealth to buy every single BTC at today's price, and that would be chump change for a government sponsored endeavor. |
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Haha what a load of crap. They won't limit their new user registrations in an effort to slow down their growth because some other pool might get to 51% and they would need to compete with them lol.  If you didn't hate them before you should now. |
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I assume that the workaround would require a correction to the Bitcoin protocol which would need a hard fork? Would it be possible to implement without essentially bricking every ASIC?
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I think Pool ops need to add to the User Agreement that users found to be selfish mining forfeit any non-dispersed mining funds and are contractually obligated to return their ill-gotten gains. Most other users would support this.
The problem is how can you prove it statistically except for looking at massive deviations (like 6 magnitudes off).
I am not totally sure how mining works now, but couldn't a pool spot check miners by giving them work known to contain a valid block solution every now and then? I'd be easy to get evidence this way. Basically have the pool send work that only needed difficulty 1 to solve? I guess that could work, but I'm not well versed on the inner workings of nonces and all the stuff... need one of those brainiacs to post on that |
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I think Pool ops need to add to the User Agreement that users found to be selfish mining forfeit any non-dispersed mining funds and are contractually obligated to return their ill-gotten gains. Most other users would support this.
The problem is how can you prove it statistically except for looking at massive deviations (like 6 magnitudes off).
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Have you tried PMing Eleuthria about it? He's been looking for users who have a significant disproportionate lucky by you have the addresses so it would be faster. To be getting 10BTC payments at regular intervals requires a good bit of power.
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Free electricity only deals with one main issue - the maintenance cost of mining.
You would also need free space if you want to capitlize on the free power
You would need capitol to build a structure to run the miners - most homes can't handle more than a few miners
If you really want to make money you would host other people's miners but then you would need to have insurance
If you don't want to do all that, go read up on the alt coins and start mining those with your 5700s and realize how little GPUs make nowadays.
Simply put without throwing money into SHA-256 ASICs you won't be making much BTC.
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And yet if you were one of the oppressed people living under Saddam's thumb and you survived the war life would have become 1000x better. Last month I hired some Iraqi refugees to do some manual labor for me. One was an agricultural engineer with a university degree. The idea Iraq is "1000x better" with Sharia Law, insane religious fanatics decapitating people on street corners, starvation, birth defects from American munitions, and a million people slaughtered is about as fucking stupid as it gets. Funny, my neighbor who was born in Iraq and was there for the last 3 months would disagree with you. I said it is better for those who were oppressed (obviously the ones who took power with the US' backing). I didn't say it was peachy. You can only get decapitated if you live to have a head. If your mother was gassed by Saddam while you were in the womb (my neighbor's wife was killed when she was 8 months pregnant by a gassing) then you couldn't really be decapitated could you now. It's better to have live some life with some freedoms than to have lived a life as an outcast/slave. My argument was that the people there will not find life enjoyable until they can settle problems with a pen as opposed to an AK47. |
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First they ignore you, then they laugh at you, then they fight you, then you win.
You must be the change you wish to see in the world.
-Mahatma Gandhi
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If there will be donkeys my wife will demand we go. Please, no donkeys.
 "What the fuck do you mean you can't go to Secret Company?" Is that the new dog and pony show that I've been hearing about? |
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Oh God, don't let the preorder peeps see this. It will only make them more angry.
Anger.... gives you focus, makes you stronger!
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I don't know whatever to be sad or happy, but this is black comedy.
I hope one day, we ALL smoke some cannabis, ONLY that day, you will 0 kills.
As a depressant, once it wears off you can have a gran mal seizure and die. |
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Since many of the inventions listed are more of a transformation of 1 invention to another:
Flight - Essentially the world in available to everyone
transistor/microchip - without them everyday life for almost all of Earth is different
Atomic bomb - not so much of a change now besides all the fear since it's creation, but it will power us in the future when we leave Earth
Moon landing - 10k years ago the above 3 were not conceived but people looked at the moon and I'm sure some thought of going there
DNA/origin of life - still a work in progress. When we do solve or have a really solid clue it will answer the oldest questions - who are we and where did we come from.
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Man and I this time I thought they were wasting taxpayer dollars. This is such a good use of our taxes. Here's the forum's sarcasm detector ... |
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