CGMiner includes overclocking, monitoring, fan speed control and remote interface features. Other features include self-discovery of new blocks using a mini-database, binary cores, multi-GPU support, and processor mining support. There are many other characteristics of this miner, which you can find out in this article about CGMiner.
CGMiner 4.1.11 – This is a multi-threaded multi-bullet FPGA and ASIC miner for bitcoins, as well as the most popular miner for GPU / FPGA / ASIC. CGMiner – This is an open source GPU miner written in C and available on several platforms such as Windows, Linux and OS X. One of the things that make it extremely popular is the fact that it is based on the original Cpu code. Miner.
If you compile cgminer with a version of CURL before 7.19.4, then some of the above will not be available. All available since version 7.19.4 CURL
If you specify the –socks-proxy option for cgminer, it will be applied only to all pools that do not specify their own proxy settings, as described above.
After saving the configuration from the menu, you do not need to give the arguments to cgminer, and it will load your configuration.
Any configuration file may also contain one “include”: “filename” to recursively include another configuration file. A configuration record will save all the settings from all the files in the output.
Features and Commands:
CGMiner on Windows Setup Guide for Bitcoin Users + ASIC Miner Setup
Very low overhead free c code for Linux and windows with very low nonmining CPU mining and ram usage
Stratum and GBT pooled mining protocol support, including ultra low overhead solo mining
Scaleable networking scheduler designed to scale to any size hashrate without networking delays yet minimise connection overhead
long poll support will use longpoll from any pool if primary pool does not support it
Self detection of new blocks with a minidatabase for slow/failing longpoll scenarios, maximum work efficiency and minimum rejects.
Heavily threaded code hands out work retrieval and work submission to separate threads to not hinder devices working
Caching of submissions during transient network outages
Preemptive fetching of work prior to completion of current work
Local generation of valid work (via stratum, GBT or ntime rollover) whenever possible, as supported on a perwork item basis
Prevention of stale work submission on new block
Summarised and discrete device data statistics of requests, accepts, rejects, hw errors and work utility
Summary displayed when quitting
Supports multiple pools with multiple intelligent failover mechanisms
Temporary disabling of misbehaving pools rejecting all shares
On the fly menu based management of most settings
Trickling of extra work to backup pools if primary pool is responding but slow
RPC +/ JSON interface for remote control
Bitforce support singles and minirig
Ability to cope with slow routers
Variable difficulty support
Share difficulty reporting
Target and block difficulty displays
Block solve detection
ASIC Avalon support
Redfury/Bluefury USB stick support
Bi*fury USB support
Hexfury USB support
Onestring miner support
BlackArrow Bitfury support
BFL SC asic support
Antminer U1/2+ support
Bitmine A1 support
Bitmain S1 support
Spondoolies SP10 support
Spondoolies SP30 support
Rockminer RBox support
Compac gekko support
Direct USB communications
Heavily featured RPC API
Lots of other stuff I can’t remember. See options.
Miner CGMiner is designed to work with AMD graphics cards. Since he does not know how to extract currency using CUDA technology. If you have a computer or farm with NVIDIA graphics cards, it is best to use Claymore Dual Miner.
Of the interesting features of this program, it is worth noting the availability of tools for overclocking the GPU and even for controlling the speed of coolers. It is recommended to use them very carefully.
Even CGMiner can provide debugging information, automatically disable a “problem” worker, work through a proxy, and use the Load Balance and Round Robin strategies. The user is given the opportunity to specify the width of the vectors, time periods for reconnection, create artificial delays for routers and configure a separate message output.
the lack of GUI (console application);
using the NeoScrypt algorithm, helps to achieve maximum values of MH/s;
availability of tools for overclocking the graphics card;
change parameters via the configuration file;
display a detailed log;
To simplify the work with the program, you can use the cgwatcher graphical shell.
Options for config CGMiner
The intensity of the main indicator that affects the speed of the miner, its value is set from 0 to 20. It should be borne in mind that too high a rate can negatively affect the speed of mining, since it can exhaust all available memory and actually reduce the speed of mining at best. In the worst case, a large number of incorrect calculations and HW errors will appear. Please note that if the intensity is not set, CGMiner will dynamically adjust it taking into account the possibility of comfortable work on the PC.
The parallel stream controls the optimal amount of computation that the scrypt algorithm can perform. Initially, it is configured to maximize the use of multiple threads of all the shader blocks of the graphics card that it has. The value must be a multiple of the number of shader blocks of the video card. Accordingly, if “thread parallelism” is indicated, then the shaders can be removed. It is recommended that you spend some time looking for the best value for your video card to achieve maximum performance.
CGMiner GPU mining
A new version of CGMiner git 5.3.1-tpruvot has appeared for the production of Decred using AMD and NVIDIA GPUs. This new version of the miner should work better than the previously available CGMiner DCR plug.
This branch comes with support for both protocols, adopting a bead such as a formal protocol, and more advanced work through the layer. As mentioned above, the miner will work with AMD and NVIDIA GPU graphics cards (using OpenCL, not CUDA).
Keep in mind that NVML monitoring only works in the 64-bit version. When testing this version of the miner, we were able to achieve a higher hashrate on video cards from NVIDIA than when using tpruvot fork ccMiner to mine DCR. Those who manufacture using AMD graphics cards should have no problems switching to this version of the miner. You will probably be able to get the best Decred mining results using Gatework-enabled pools through Stratum.
CryptoNight mining algorithm
The main objective of Cryptonight is not to create a gap between PC users and owners of specialized ASIC devices during mining. Abadi and other cryptographers have developed memory sensitive algorithms.
The main idea is to highlight a large data block (Notepad) in RAM with an unpredictable sequence in it. The block should be large enough to make data storage more convenient than calculating it each time it is accessed. The algorithm should also prevent internal concurrency, that is, N simultaneous threads should require N times more memory at the same time.
The popular Scrypt algorithm also uses memory, but leaves the possibility of creating powerful and relatively inexpensive computing devices to calculate this algorithm. In the case of CryptoNote, unlike Scrypt, each new block (64 bytes) depends on all the previous ones. The new algorithm requires about 2 MB of RAM, which is the minimum size of the L3 cache of modern processors. At the same time, this amount of RAM eliminates the use of ASIC.
We must distinguish between CryptoNote and CryptoNight. CryptoNight is one of the implementations of the CryptoNote protocol. According to the Kryptonite algorithm, Monero (XMR), ByteCoin (BCN), Aeoncoin were built.
The advantages of production on this algorithm:
Smoothly decreasing emission.
Small time intervals between blocks;
The inability to mine on ASIC hardware.
The use of bundles of CPU+GPU for greater performance.
Fundamental differences from bitcoin, which contributes to the growth of interest in new cryptocurrencies.
Innovation profitable CryptoNight coin isolated from most of the altcoins on the old algorithms.
Profitability and expediency of production is higher than most other cryptocurrencies.
Less heating of the graphics card and processor than when mining on other algorithms.
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