11

There are several options for Mining Bitcoins some of these are no longer profitable, but for the sake of being thorough here they are in order of efficiency lowest to highest: Methods CPU Mining (minerd) GPU Mining (cgminer, bfgminer) FPGA Mining (Custom software - https://github.com/fpgaminer/Open-Source-FPGA-Bitcoin-Miner) ASIC Mining (cgminer, bfgminer,...


7

Yes, this is related to GPU mining. From cgminer's README: INTENSITY INFORMATION: Intensity correlates with the size of work being submitted at any one time to a GPU. The higher the number the larger the size of work. Generally speaking finding an optimal value rather than the highest value is the correct approach as hash rate rises up to a ...


6

The higher difficulty means you will be reporting results less frequently to the pool. This reduces network load on both your system and the pool. It also reduces the restart delay for your mining hardware as it prepares for the next work unit. Most pools base the rewards on the number of difficulty 2 shares accepted. So they increase the reward based on ...


6

I was confused by this as well, but I figured it out through trial and error. AM means arbitrary message (they should have explained this), which is a regular message you send to the forging pool through your wallet. First you must join the forging pool (Account Balance -> More Info -> Account Leasing). No additional message is necessary at this point. ...


5

The official bitcoin client from bitcoin.org has a CPU mining option. Add a file named bitcoin.conf to the bitcoin data directory, with the contents gen=1 https://en.bitcoin.it/wiki/Running_Bitcoin#Bitcoin.conf_Configuration_File


5

"gen" is by default 0 (off), so you should not really need to specify "gen=0" anywhere. "gen" will generate bitcoins (mining), but you should only do this if you know what you are doing (you probably want to mine in a pool, and use proper tuned hardware/software). And yes, you will only get transaction fees if you mine a block.


5

No, it doesn't have to be. Mining doesn't require private keys, only (part of) the public one. Having only the address of the destination is enough, so the wallet can be locked.


5

The miner you are using does not support the stratum protocol. Instead you must use a pool that uses the old and now obsolete getwork protocol If I see it correctly BTCGuild still offers the getwork access with the following URL: minerd.exe -o http://btcguild.com:8332 -u username_1 -p password -a sha256d -R 2


5

You need to be online because mining is sort of like a mathematical race: whoever finds the hash of the next block (with value less than the current target) wins. And in order to prove that you found this value before anybody else, you need to be online in order to broadcast it to other users.


5

Bitcoin is a gossiping network. There is no hierarchy among the nodes, each node operates at equal privilege level. Bitcoin has an established protocol defining how nodes communicate with each other, and some stepping stones to find the first peers (although they could easily be replaced by other on-boarding mechanisms). Whenever a node learns new data on ...


4

If you are after bitcoins I wouldn't even spend time on CPU or GPU. It is now difficult with specialized hardware (butterfly labs, kncminer ... ). You can have a look at cloud mining (cexio) as well it is expensive and you have to have bitcoins already but you can buy and sell GH/s and you can actually make more from trading than mining.


4

So, while Mac includes python it does not include gcc by default, even once you've installed Xcode 4.2 or later. For now, grab that, go to preferences, downloads and get the command line tools. Once a version of Xcode higher than 4.6 is out you'll have to find a new way to install gcc on your mac, as gcc will no longer be included, but I guess that's a ...


4

I know this is an old question but recently I got a similar server. I've tested rpcminer, GUI Miner (Which is actually UFASoft miner). Personally the best I've found is CPUMiner. With a hash rate of about 75MH/s, it takes a bit of setting up as CPUMiner is normally used for Litecoin mining. CPUMiner gave me about 10%-20% more than the closest rival, which ...


4

You should use multiple workers if you want separate statistics for them, or if the pool you are using limits the number of connections that are allowed per worker.


4

If you are mining bitcoins successfully, then don't worry about it. There's no need to install the SDK. OpenCL drivers are included with AMD's Catalyst drivers. Also note that solomining on a GPU could mean you never make a single coin. It may look like now that it will take a couple years, but by that time the difficulty is much higher. Unless you are ...


4

With the advent of ASICs, Bitcoin GPU mining is no longer profitable. I would recommend mining a Scrypt coin such as Dogecoin or Litecoin. (You can then trade it in for Bitcoin on an exchange, if you prefer.) To answer your original question, yes, you can use one card for mining and the other for actually running the computer.


4

I would highly recommend using Ubuntu Server for this, as long as you know what you are doing without a GUI. Not having a GUI at all means smaller OS size and much less OS tasks. This translates into more power savings. If you are using graphics cards, a non-GUI OS will improve your mining performance. If using an ASIC/etc. you probably will not see ...


4

Even on testnet the difficulty is sufficiently high that it will take you a long time to mine anything using cpu. (Lots of people testing ASICs, presumably.) Your best bet is probably Testnet in a box. Then you can cpu mine just by using ´setgenerate true´ in Bitcoin Core.


4

In order to be able to calculate the nonce for the next block you need all the information from the last known block. The time between the blocks is 10 minutes in average, so if you stay offline for more that 10 minutes you will not be able to perform any valid calculations and essentially you will be in a solo, forking mode, solving the wrong block.


4

If you look at recent blocks on https://blockstream.info/ (as of today, Aug 15 2020), nearly all blocks are very close to 4000 kWU. The variation is due to availability of sufficiently small transactions to fill up the last part, and differences in selection algorithms. Occasionally, an empty block appears instead. These happen as a result of pools learning ...


4

Yes. Bitcoin Core has a RPC submitblock, which, as the name implies, allows you to provide a block to be submitted to the Bitcoin network. In fact, Bitcoin Core supports the getblocktemplate protocol which means you can solo mine with Bitcoin Core. Furthermore, pools are probably running Bitcoin Core in their backend and their pool software just uses the ...


3

The original question was [sic] "What is the fastest CPU miner that I could use". Based on the answers, it seems, that everyone by default went to cpuminer/minerd. I use it also. However... bfgminer (all except the latest version) has the ability to be used as a cpu miner. I have not been able to optimize mine yet but I do know that it is an incredibly ...


3

It's pointless. With that kind of hardware, it would take you on the order of a month to mine a dollar's worth of Bitcoins, and the electricity used would cost you many times that.


3

Though bitcoind won't mine blocks with gen=0, while connected to peers it will still relay transactions and send historic blocks to peers, which is an important function in the network. "Processing transactions" is a fairly generic term and is not a particularly useful term to use because it's not specific about what sort of processing is meant. It's better ...


3

Warning: doing what is described below will not gain you any coins at all with exceedingly high probability, and just burn electricity (see other answer). Bitcoin Core still has a built-in miner. It is not efficient, not optimized, does not use any special hardware (like special CPU instructions, GPUs, FPGAs, or ASICs), and is only useful for testing on ...


3

This is covered in the included README document.


3

If you start the bitcoin-qt client from the command line with the bitcoin-qt.exe -gen 1 command, then it will generate bitcoins using your CPU. Alternately, use cpuminer. (Builds)


3

I have tried the bitminter client for mining and it seems that both of my gpus are used. You can try downloading it from here


3

Bitcoin mining is principally an integer maths task, not a graphics task. It just so happens that the hundreds of processors found on modern graphics cards can sometimes be suitable for parallel calculation of the bitcoin task, at upwards of a hundred times the best available rate from four cpu calculations. See wiki reports on bitcoin hardware for ...


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