parallella board mining bitcoins

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Parallella board mining bitcoins

A: Everyone will always have their own view of what's important to monitor. The defaults are very sane and I have very little interest in changing this any further. Most user defined settings lead to worse performance.

Q: What happened to CPU mining? A: Being increasingly irrelevant for most users, and a maintenance issue, it is no longer under active development and will not be supported. No binary builds supporting CPU mining will be released. Virtually all remaining users of CPU mining are as back ends for illegal botnets. The main reason cgminer is being inappopriately tagged as a virus by antivirus software is due to the trojans packaging a CPU mining capable version of it.

If you are mining bitcoin with CPU today, you are spending x more in electricity costs than you are earning in bitcoin. Q: GUI version? The RPC interface makes it possible for someone else to write one though. Q: I'm having an issue. What debugging information should I provide? A: Start cgminer with your regular commands and add -D -T --verbose and provide the full startup output and a summary of your hardware, operating system, ATI driver version and ATI stream version. Q: Why don't you provide win64 builds?

A: Win32 builds work everywhere and there is precisely zero advantage to a 64 bit build on windows. Q: Is it faster to mine on windows or linux? A: It makes no difference. It comes down to choice of operating system for their various features. Linux offers much better long term stability and remote monitoring and security, while windows offers you overclocking tools that can achieve much more than cgminer can do on linux.

A: cgminer will compile on OSX, but the performance of GPU mining is compromised due to the opencl implementation on OSX, there is no temperature or fanspeed monitoring, and the cooling design of most MACs, despite having powerful GPUs, will usually not cope with constant usage leading to a high risk of thermal damage. Q: I'm trying to mine litecoin but cgminer shows MH values instead of kH and submits no shares?

A: Add the --scrypt parameter. Q: I switch users on windows and my mining stops working? A: That's correct, it does. It's a permissions issue that there is no known fix for due to monitoring of GPU fanspeeds and temperatures. If you disable the monitoring with --no-adl it should switch okay.

Q: My network gets slower and slower and then dies for a minute? A; Try the --net-delay option. Q: How do I tune for p2pool? A: p2pool has very rapid expiration of work and new blocks, it is suggested you decrease intensity by 1 from your optimal value, and decrease GPU threads to 1 with -g 1. It is also recommended to use --failover-only since the work is effectively like a different block chain.

If mining with a minirig, it is worth adding the --bfl-range option. Q: Are OpenCL kernels from other mining software useable in cgminer? A: No, the APIs are slightly different between the different software and they will not work. Why does it fail when php is installed properly but I only get errors about Sockets not working in the logs?

Since the acronym needs to be only 3 characters, the "Field-" part has been skipped. They are Application Specify Integrated Circuit devices and provide the highest performance per unit power due to being dedicated to only one purpose. Q: What is stratum and how do I use it? A: Stratum is a protocol designed for pooled mining in such a way as to minimise the amount of network communications, yet scale to hardware of any speed. With versions of cgminer 2. Stratum uses direct TCP connections to the pool and thus it will NOT currently work through a http proxy but will work via a socks proxy if you need to use one.

The advantages of stratum to the miner are no delays in getting more work for the miner, less rejects across block changes, and far less network communications for the same amount of mining hashrate. If you do NOT wish cgminer to automatically switch to stratum protocol even if it is detected, add the --fix-protocol option. A: As an example, if you look at 'Difficulty Accepted' in the RPC API, the number of difficulty shares accepted does not usually exactly equal the amount of work done to find them.

If you are mining at 8 difficulty, then you would expect on average to find one 8 difficulty share, per 8 single difficulty shares found. However, the number is actually random and converges over time, it is an average, not an exact value, thus you may find more or less than the expected average.

Q: Why do the scrypt diffs not match with the current difficulty target? A: The current scrypt block difficulty is expressed in terms of how many multiples of the BTC difficulty it currently is eg 28 whereas the shares of "difficulty 1" are actually times smaller than the BTC ones. The diff expressed by cgminer is as multiples of difficulty 1 shares.

Q: Can I make a donation in litecoin? Q: My keyboard input momentarily pauses or repeats keys every so often on windows while mining? A: The USB implementation on windows can be very flaky on some hardware and every time cgminer looks for new hardware to hotplug it it can cause these sorts of problems. You can disable hotplug with: --hotplug 0 Q: Can I use a proxy? A: Proxies only work with the getwork and GBT protocols using the --proxy command.

If you wish to use a proxy with stratum, people have supported success with various 3rd party tools like proxifier. Assuming all your work is valid work, bitcoin mining should produce a work utility of approximately 1 per You cannot make your machine do "better WU" than this - it is luck related. However you can make it much worse if your machine produces a lot of hardware errors producing invalid work.

Releases tags. Packages 0 No packages published. If you have ideas for the remaining BTC, see here for more info. How would one of these Parallella-based machines perform at bitcoin mining? As a very rough comparison, a parallella board has 16 cpu's each running at 1GHz. The cpu's seem similar to an iphone cpu but about twice the speed. A parallella board is somewhere in the ballpark of being equivalent to 32 iphones. The mining hardware comparison page on the bitcoin wiki lists an iphone 3g as doing 0.

The energy consumption per megahash is mediocre and the hardware cost is laughably uncompetitive. Even if it's ten times better than my estimate it would still not be worth using. Twenty months to pay back the hardware cost at today's numbers probably means never, either the value of BTC will have plummeted because exchanges can't keep their bank accounts open or new mining hardware will have massively increased the difficulty factor.

The main thing is that the cores can't just run threads from the OS they have to be specifically programmed for it so it isn't going to be usefull for the average person. The only good thing is that it is cheap to get ones feet wet in parallel computing, so one could look at this as a raspberry pi of parallel computing.

So it has a purpose just not the over hyped purpose many have incorectly have been lead to believe. I am flabbergasted by the amount of hype that emanates from kickstarter projects. Never seen anything like it before in my life. That's why kickstarter is such a success often.

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However due to permissions issues, you may not be able to mine directly on the devices as a regular user without giving the user access to the device or by mining as root administrator. G gives you something like: GPU 0: [ The 2 diff values are the actual difficulty target that share reached followed by the difficulty target the pool is currently asking for. GPU 1: Started: [] Best share: 2.

This means that if you input a number of pools, it will try to use them as a priority list, moving away from the 1st to the 2nd, 2nd to 3rd and so on. If any of the earlier pools recover, it will move back to the higher priority ones. The most efficient pools will tend to get a lot more shares. If any pool falls idle, the rest will tend to take up the slack keeping the miner busy. BALANCE: This strategy monitors the amount of difficulty 1 shares solved for each pool and uses it to try to end up doing the same amount of work for all pools.

In other words if you would normally use:. There is also the -m option on linux which will spawn a command of your choice and pipe the output directly to that command. The WorkTime details 'debug' option adds details on the end of each line displayed for Accepted or Rejected work done.

The argument to the option may be "-" for standard output not advisable with the ncurses UI , any valid positive number for that file descriptor, or a filename. To log share data to a file named "share. A: No, cgminer keeps a database of the block it's working on to ensure it does not work on stale blocks, and having different blocks from two networks would make it invalidate the work from each other.

Q: Can I configure cgminer to mine with different login credentials or pools for each separate device? A: No. Q: Can I put multiple pools in the config file? A: Yes, check the example. Q: The build fails with gcc is unable to build a binary. Q: Can you implement feature X? A: I can, but time is limited, and people who donate are more likely to get their feature requests implemented.

Q: Work keeps going to my backup pool even though my primary pool hasn't failed? A: Cgminer checks for conditions where the primary pool is lagging and will pass some work to the backup servers under those conditions. The reason for doing this is to try its absolute best to keep the GPUs working on something useful and not risk idle periods. You can disable this behaviour with the option --failover-only. Q: Is this a virus? A: Cgminer is being packaged with other trojan scripts and some antivirus software is falsely accusing cgminer.

If you installed cgminer yourself, then you do not have a virus on your computer. Complain to your antivirus software company. They seem to be flagging even source code now from cgminer as viruses, even though text source files can't do anything by themself. Q: Can you modify the display to include more of one thing in the output and less of another, or can you change the quiet mode or can you add yet another output mode? A: Everyone will always have their own view of what's important to monitor.

The defaults are very sane and I have very little interest in changing this any further. Most user defined settings lead to worse performance. Q: What happened to CPU mining? A: Being increasingly irrelevant for most users, and a maintenance issue, it is no longer under active development and will not be supported. No binary builds supporting CPU mining will be released.

Virtually all remaining users of CPU mining are as back ends for illegal botnets. The main reason cgminer is being inappopriately tagged as a virus by antivirus software is due to the trojans packaging a CPU mining capable version of it. If you are mining bitcoin with CPU today, you are spending x more in electricity costs than you are earning in bitcoin. Q: GUI version? The RPC interface makes it possible for someone else to write one though. Q: I'm having an issue. What debugging information should I provide?

A: Start cgminer with your regular commands and add -D -T --verbose and provide the full startup output and a summary of your hardware, operating system, ATI driver version and ATI stream version. Q: Why don't you provide win64 builds? A: Win32 builds work everywhere and there is precisely zero advantage to a 64 bit build on windows. Q: Is it faster to mine on windows or linux? A: It makes no difference. It comes down to choice of operating system for their various features. Linux offers much better long term stability and remote monitoring and security, while windows offers you overclocking tools that can achieve much more than cgminer can do on linux.

A: cgminer will compile on OSX, but the performance of GPU mining is compromised due to the opencl implementation on OSX, there is no temperature or fanspeed monitoring, and the cooling design of most MACs, despite having powerful GPUs, will usually not cope with constant usage leading to a high risk of thermal damage. Q: I'm trying to mine litecoin but cgminer shows MH values instead of kH and submits no shares? A: Add the --scrypt parameter. Q: I switch users on windows and my mining stops working?

A: That's correct, it does. It's a permissions issue that there is no known fix for due to monitoring of GPU fanspeeds and temperatures. If you disable the monitoring with --no-adl it should switch okay. Q: My network gets slower and slower and then dies for a minute? Bitcoin is the currency of the Internet: a distributed, worldwide, decentralized digital money.

Unlike traditional currencies such as dollars, bitcoins are issued and managed without any central authority whatsoever: there is no government, company, or bank in charge of Bitcoin. As such, it is more resistant to wild inflation and corrupt banks. With Bitcoin, you can be your own bank. You can also explore the Bitcoin Wiki :. Bitcoin Core is the backbone of the Bitcoin network. Almost all Bitcoin wallets rely on Bitcoin Core in one way or another. If you have a fairly powerful computer that is almost always online, you can help the network by running Bitcoin Core.

You can also use Bitcoin Core as a very secure Bitcoin wallet. Check out his other work here. We previously collected donations to fund Bitcoin advertising efforts, but we no longer accept donations. The funds already donated will be spent on some sort of advertising, as intended. As of now, If you have ideas for the remaining BTC, see here for more info. How would one of these Parallella-based machines perform at bitcoin mining?

As a very rough comparison, a parallella board has 16 cpu's each running at 1GHz. The cpu's seem similar to an iphone cpu but about twice the speed. A parallella board is somewhere in the ballpark of being equivalent to 32 iphones. The mining hardware comparison page on the bitcoin wiki lists an iphone 3g as doing 0. The energy consumption per megahash is mediocre and the hardware cost is laughably uncompetitive. Even if it's ten times better than my estimate it would still not be worth using.

Twenty months to pay back the hardware cost at today's numbers probably means never, either the value of BTC will have plummeted because exchanges can't keep their bank accounts open or new mining hardware will have massively increased the difficulty factor.

The main thing is that the cores can't just run threads from the OS they have to be specifically programmed for it so it isn't going to be usefull for the average person. The only good thing is that it is cheap to get ones feet wet in parallel computing, so one could look at this as a raspberry pi of parallel computing.

So it has a purpose just not the over hyped purpose many have incorectly have been lead to believe. I am flabbergasted by the amount of hype that emanates from kickstarter projects. Never seen anything like it before in my life. That's why kickstarter is such a success often. It provides both marketing as well as funding if it's done right. Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

Сфотожопили como minerar bitcoins for sale правы

Supporting a jaw-dropping 19 GPUs — more than any other board on this list, the Asus B Mining Expert is easily the best mining motherboard you can buy today. It can still handle up to six GPUs, and it has the excellent build quality Gigabyte is known for — which means it can withstand the intensive conditions cryptocurrency mining can create.

Unlike some other mining motherboards, it can be used for non-mining applications, giving it a flexibility that we really appreciate. Even if you're not going to be using the full 12 PCI slots for graphics cards, this could be a wise investment if you plan on scaling up your mining operation in the future.

The only real downside of this motherboard is that it's quite difficult to get hold of, so keep an eye on our price tracker on this page, as it will tell you when it's in stock, and what the best price is! It also has a ton of other features, though many of them are focused on gaming. TechRadar pro IT insights for business.

Please deactivate your ad blocker in order to see our subscription offer. Specifications Form factor: ATX. GPU Support: Slots: 1 x PCI Express 3. Reasons to avoid - Difficult to get hold of. This so-called mining involves banks of computers that maintain the electronic ledgers for virtual currencies to earn rewards in digital coins. For more than a year, Chelan County Public Utility District staff have been worried that a surge in new server farms would create "unsustainable" demands.

Now the Chelan PUD board has voted in a new rate structure targeted at this class of customer. Energy-intensive tech businesses will be charged a higher monthly rate than traditional industrial or commercial customers pay. They will also have to pay for any needed infrastructure upgrades. That may end up acting as a deterrent according to a server farm developer in Wenatchee.

In light of the rate case and a temporary moratorium on large new loads, new cryptocurrency server farms have located on the other side of the Columbia River in the service territories of the Douglas and Grant County utility districts. The Chelan County PUD board voted unanimously on Monday to approve the new rate structure for what it terms "high density load" customers.

The utility said the new rate applies to server farms and similar technology operations with intense energy use of kilowatt hours per square foot per year or more. No entrepreneurs or opponents of the idea attended the meeting during which the final vote was held. Server farm developer Malachi Salcido, who runs Wenatchee-based Salcido Connection, said in an interview Tuesday that the higher cost structure will have consequences, but he said he was at peace with the outcome.

The businessman said he has "a very long view of the opportunity" presented by the block chain technology that underlies the various cryptocurrencies in circulation.