They seem to be cgminer even source code now from cgminer as viruses, even though text source files can't do anything by themself. The output line shows the bitcointalk After your miners download configured, you can even setup "Autostart mining" that will let you start mining for Cgminer as soon as the program opens! What download an ASIC? Bitcointalk frequency for Avalon nano 2.
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While a pool is dead, it loses its quota and no attempt is made to catch up when it comes back to life. When choosing a hub, USB2 hubs are preferable whenever possible due to better support all round. The 2 diff values are the actual difficulty target that share reached followed by the difficulty target the pool is currently asking for. Provably Fair Black Jack. Set the mcp transfer setting only when it changes. On linux, the direct USB support requires no drivers at all.
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The following options are download while running with a download keypress: You bitcointalk in with another tab or window. Bitcoin Bitcointalk Support Questions regarding cgminer with Bitcoin Core, nodes, the Bitcoin network, transactions, and cgminer. API add Work Difficulty to pools. This strategy only moves from one pool to the next when the current one falls idle and makes no attempt to move bitcointalk. Why don't you provide win64 builds? To specify quotas download the command line, pools should cgminer specified with a semicolon separated --quota or -U entry instead of --url.
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While a pool is disabled or dead, its quota is dropped until it is re-enabled. Quotas are forward looking, so if the quota is changed on the fly, it only affects future work. If all pools are set to zero quota or all pools with quota are dead, it will fall back to a failover mode. See quota below for more information. The failover-only flag has special meaning in combination with load-balance mode and it will distribute quota back to priority pool 0 from any pools that are unable to provide work for any reason so as to maintain quota ratios between the rest of the pools.
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. The quotas handed out by default are equal, but the user is allowed to specify any arbitrary ratio of quotas. Quotas can be changed on the fly by the API, and do not act retrospectively. Setting a quota to zero will effectively disable that pool unless all other pools are disabled or dead.
In that scenario, load-balance falls back to regular failover priority-based strategy. While a pool is dead, it loses its quota and no attempt is made to catch up when it comes back to life. To specify quotas on the command line, pools should be specified with a semicolon separated --quota or -U entry instead of --url. Pools specified with --url are given a nominal quota value of 1 and entries can be mixed. Writing configuration files with quotas is likewise supported.
To use the above quotas in a configuration file they would be specified thus: To do this, edit your bitcoind configuration file bitcoin. 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. An example would be: The previous hash is followed by the getwork mode used M: X where X is one of P: 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. The format of the work file is: When it reaches the end of the file it continues back at the top.
The format of the data items matches the byte ordering and format of the the bitcoind getblock RPC output. An example file containing bitcoin block 1 would be: Help, I've started cgminer and everything reads zero!? Welcome to bitcoin mining. Your computer by itself cannot mine bitcoin no matter how powerful it is. You have to purchase dedicated mining hardware called ASICs to plug into your computer. I have multiple USB stick devices but I can't get them all to work at once?
Very few USB hubs deliver the promised power required to run as many devices as they fit if all of them draw power from USB. I've plugged my devices into my USB hub but nothing shows up?
When choosing a hub, USB2 hubs are preferable whenever possible due to better support all round. Can I mine on servers from different networks eg xxxcoin and bitcoin at the same time? 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. Can I configure cgminer to mine with different login credentials or pools for each separate device?
Can I put multiple pools in the config file? Yes, check the example. The build fails with gcc is unable to build a binary. Also -O2 is capital o 2, not zero 2. Can you implement feature X? I can, but time is limited, and people who donate are more likely to get their feature requests implemented.
Work keeps going to my backup pool even though my primary pool hasn't failed? 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 devices working on something useful and not risk idle periods.
You can disable this behaviour with the option --failover-only. Is this a virus? 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.
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? 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. There is far more detail in the API output than can be reasonably displayed on the small console window, and using an external interface such as miner.
Most user defined settings lead to worse performance. Their efficiency makes them irrelevant in the bitcoin mining world today and the author has no interest in supporting alternative coins that are better mined by these devices. The RPC interface makes it possible for someone else to write one though. I'm having an issue. What debugging information should I provide? Start cgminer with your regular commands and add -D -T --verbose and provide the full startup output and a summary of your hardware and operating system.
Why don't you provide win64 builds? Win32 builds work everywhere and there is precisely zero advantage to a 64 bit build on windows. Is it faster to mine on windows or linux? It makes no difference in terms of performance. It comes down to choice of operating system for their various features and your comfort level.
However linux is the primary development platform and is virtually guaranteed to be more stable. My network gets slower and slower and then dies for a minute? A; Try the --net-delay option if you are on a GBT server. This does nothing with stratum mining. How do I tune for p2pool? It is also recommended to use --failover-only since the work is effectively like a different block chain, and not enabling --no-submit-stale.
If mining with a BFL fpga minirig, it is worth adding the --bfl-range option. Why does it fail when php is installed properly but I only get errors about Sockets not working in the logs? What is a PGA? Cgminer supports 3 FPGAs: BitForce, Icarus and ModMiner.
Since the acronym needs to be only 3 characters, the "Field-" part has been skipped. What is an ASIC? They are Application Specify Integrated Circuit devices and provide the highest performance per unit power due to being dedicated to only one purpose.
They are the only meaningful way to mine bitcoin today. What is stratum and how do I use it? 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. 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. Why don't the statistics add up: 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.
My keyboard input momentarily pauses or repeats keys every so often on windows while mining? 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: What should my Work Utility WU be? 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. What should I build in for a generic distribution binary? There are a number of drivers that expect to be used on dedicated standalone hardware.
That said, the drivers that are designed to work generically with USB on any hardware are the following: You can't perform that action at this time.
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