Ethereum accelerator
Hardware
algorithm is difficult to solve in memory. In order to make DAG suitable for memory, each GPU needs 1-2gb of memory. If you get an error prompt: error GPU mining. GPU memory fragmentation? It means you don't have enough memory. GPU mining software is based on OpenCL, amd GPU will be faster than NVIDIA GPU of the same level. ASIC and FPGA are relatively inefficient, so they are blocked. To get OpenCL for chip integration platform, try:
amd SDK OpenCL
NVIDIA CUDA OpenCL
Ubuntu Linux settings
for this quick guide, you will need Ubuntu 14.04 or 15.04 and fglrx image driver. You can also use NVIDIA drives and other platforms, but you have to find your own way to get an effective OpenCL installation, such as genoil's ethminer fork
if you are using 15.04, go to & quot; Software and updates 〉 extra drives & quot; Set to & quot; Use the video driver & quot; from fglrx for AMD graphics accelerator
if you are using 14.04, go to & quot; Software and updates 〉 extra drives & quot; Set to & quot; Use the video driver & quot; from fglrx for AMD graphics accelerator;. Unfortunately, for some people, this method may not work, because there is a known program error in Ubuntu 14.04.02 that will prevent you from switching to the exclusive graphics drive necessary for GPU mining
therefore, if you encounter this program error, go to & quot; "Software and update" update & quot; Select & quot; Pre release reliable update proposal & quot;. Then, back to & quot; Software and updates 〉 extra drives & quot; Set to & quot; Use the video driver & quot; from fglrx for AMD graphics accelerator;. After restarting, it's worth checking that the drive is now properly installed (for example, by going to & quot; Additional drives & quot;)
no matter what you do, if you are using 14.04.02, once installed, do not change the drive or drive configuration. For example, the use of aticonfig – initial (especially the - F, - force option) will & quot; Destruction & quot; Your settings. If you accidentally change the configuration, you will need to uninstall the drive, restart, install the drive again and restart.
A卡
1. Power consumption: 243w; Calculation force: 22.4m; Price: 1999 yuan; The number of eth g every 24 hours: 0.015; Revenue generated every 24 hours: 24.8 yuan; Expected payback time: 81.66 days
2. Power consumption of the whole machine: 159w; Calculation force: 24.3m; Price: 1599 yuan; Number of eth g every 24 hours: 0.017; Revenue generated every 24 hours: 27.9 yuan; Expected payback time: 57.31 days
3. Power consumption: 171w; Calculation force: 24.4m; Revenue generated every 24 hours: 27.87 yuan; Expected payback time: 71.73 days
4. Power consumption: 97W; Calculation force: 9.2; Price: 999 yuan; Number of eth g every 24 hours: 0.006; Revenue generated every 24 hours: 10.09 yuan; Expected payback time: 99.1 days
extended data
mining machine risk
1. The problem of electricity charge
in order to make the graphics card full load for a long time, the power consumption will be quite high, and the electricity charge will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned
2. Hardware expenditure
mining is actually a competition of performance and equipment. Some mining machines are composed of more such graphics card arrays. With dozens or even hundreds of graphics cards, the cost of hardware and other costs is very high, and there is a considerable expenditure in mining
3, currency security
the withdrawal of bitcoin requires hundreds of keys, and most people will record this long string of numbers on the computer, but the frequent problems such as hard disk damage will make the key permanently lost, which also leads to the loss of bitcoin
he used to be a junior high school graate, a blacklisted veteran in the court, and a loser in people's eyes... Now, he has adopted the blockchain outlet, but he has become a respected teacher among the people.
XTT (Xin time token), based on Ethereum erc20 platform, is a decentralized digital currency carrier based on blockchain as payment technology
Ethereum is an open source public blockchain platform with smart contract function, which provides decentralized Ethernet virtual machine to process point-to-point contract through its special cryptocurrency ether (ETH)
the concept of Ethereum was first proposed by vitalik buterin, a programmer, from 2013 to 2014, inspired by bitcoin, to the effect of "next generation cryptocurrency and decentralized application platform", and began to develop through ICO crowdfunding in 2014
extended data:
background
bitcoin has created the first decentralized cryptocurrency, and has fully tested the feasibility and security of blockchain technology in more than five years
the blockchain of bitcoin is actually a set of distributed database. If a symbol bitcoin is added into it and a set of protocol is specified, the symbol can be transferred safely on the database without trusting a third party. The combination of these features perfectly constructs a currency transmission system bitcoin network
however, bitcoin is not perfect, and the scalability of the protocol is a deficiency. For example, there is only one symbol in the bitcoin Network - bitcoin, and users can't customize other symbols. These symbols can represent the company's stocks or debt certificates, which will lose some functions
In addition, a stack based scripting language is used in bitcoin protocol. Although this language has some flexibility to realize functions such as multi signature, it is not enough to build more advanced applications, such as decentralized exchanges. Ethereum is designed to solve the problem of insufficient scalability of bitcoinreference source: network Ethereum
1. Are you a member of the Lord's family of a city, so that the joint mining can be exempted from paying taxes
2. Now more equipment with multi-attribute is needed for activities such as sacrifice and refining, so it's good to synthesize drilling ores, such as fire copper, gold pith and streamer platinum, for sale
3. The finished ore can be exchanged for Shenen stone. You can refer to the price of Shenen stone on your server to consider whether it is cost-effective to sell Shenen stone in exchange city
4. It is difficult to grasp the success rate of high-grade ore synthesis, so it is recommended to sell raw ore or semi-finished ore
5. In a word, it is better to refer to the price standard of the server to determine what business to do. Walk around the Longcheng synthesis furnace more often, and you'll understand it after you have a look.
the English full name of OTC is over the counter, which is also known as the over-the-counter market or the over-the-counter market. For ordinary people, the concept of the US stock market may be limited to some mainstream markets such as the New York Stock Exchange, the American stock exchange or NASDAQ. In fact, there is another stock exchange market unknown to the public. It is the US otcmarkets, which was founded in 1904 and has a history of more than 100 years. It is the first organized OTC market in the world, It is also one of the oldest and oldest stock markets in the world<
broad growth prospects of gib global investment digital bank
gib global investment digital bank is an international online bank set up by aff technology diversified financial group. It is jointly established by professionals in the financial field and experts in the field of foreign exchange and cryptocurrency investment, providing the world's leading fund management services. On the basis of intelligent investment advisory and scene intervention technology, gib provides users with better financial solutions, so that users can enjoy faster and smoother financial service experience
according to a PwC report on cryptocurrency hedge funds, the amount of assets under management of cryptocurrency hedge funds is increasing, and the average size has increased from US $21.9 million in 2019 to US $44 million this year
with the increasing scale of digital assets, investors are more and more receptive to digital assets, which naturally leads to the birth of blockchain financial service providers such as gib global investment digital bank. Gib global investment digital bank's layout in the field of blockchain finance covers exchanges, investment banks, trading and asset management, as well as the whole instrial chain<
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