Why is graphics card used in mining

1.

mining, in fact, is a problem-solving process. First, we work out a formula with many answers, and then the dealer releases a random answer every other period of time. An answer is the prototype of a virtual coin. We can see who can calculate the answer at this time, and then this person or these people can divide the virtual coin. When the result comes out, we can find the answer, virtual currency is attached with information such as the computer information and problem-solving time of the tester, so that the virtual currency can be "materialized", that is, it has traceability and uniqueness attributes. At this time, the virtual currency is officially g out

using the graphics card is because the computing method of the graphics card is different from that of the CPU. The CPU focuses on logic computing. The graphics card is simple computing, and mining (that is, solving problems) just needs simple computing power. Therefore, mining with the graphics card

bitcoin miner is the equipment for mining bitcoin. The mining equipment can be ordinary computer or USB miner, It can also be a professional ASIC miner

It is true that ordinary computer CPU can mine bitcoin, but because bitcoin mining has formed a huge instry all over the world, it is difficult for indivials to mine bitcoin with ordinary computers. You need to buy expensive and professional bitcoin

ASIC mining machine

and join the bitcoin miners organization to dig bitcoin, that is, to join a mining pool for mining

First of all, CPU and GPU are designed differently for different missions in the computer:

1. CPU is mainly optimized for serial instructions, while GPU is optimized for large-scale parallel computing

Modern multi-core CPUs aim at instruction set parallelism (ILP) and task parallelism (TLP), while GPUs aim at data parallelism (DLP)

3. GPU often has a larger bandwidth of memory, that is, the so-called video memory, so it will also have good performance in high throughput applications

2.

Why use graphics card to mine

compared with CPU, GPU is used for general purpose calculation. So it can stack hundreds of stream processors awesome. Each stream processor is like a small CPU. Although its ability to run complex programs is far from the power of CPU, it can not support many processors, so the actual performance, especially the single precision floating point performance is much stronger than that of CPU. p> However, as we have mentioned before, a card is very suitable for general computing such as virtual currency because it has many stream processors, and the speed of obtaining specific solutions is much higher than that of N card. Therefore, many miners rush to buy a card to calculate virtual currency for profit

of course, with NVIDIA's Pascal graphics card, n card's ability in mining virtual currency is not as different as a card before. So in the current situation that a card is generally out of stock, those mid-range N cards have become the second choice for miners

What are the disadvantages of mine card

finally, I want to talk about why we can't choose mine card when we are shopping for second-hand cards. Because the miners are mining bitcoin, the most important thing is to seek profits. Therefore, the graphics card they use is running and calculating all the time, and its strength is far greater than that of daily game applications. In other words, running such a calculation for one day is equivalent to running a graphics card for one month

in addition, the places where virtual currency is mined are mostly the places where multiple graphics cards gather. Thousands of graphics cards are constantly calculating in a room, and their heat is also quite huge. Miners can not choose the chassis with good heat dissipation conditions like ordinary consumers, so that the heat can be released smoothly. In this way, the graphics cards can still operate for 7 * 24 hours under high temperature conditions, It also deepens its aging degree

the result of doing so is that the graphics cards used for mining are lost prematurely. If you buy these graphics cards, the result will be unstable operation, restart and other things will continue to happen

moreover, at present, manufacturers also have strict requirements on mine cards, such as banning second-hand sales and shortening the shelf life. If users buy these mine card graphics cards, future maintenance will also be a big challenge

3. Copied:
in short, mining is to use the chip to carry out a calculation related to the random number, and get the answer in exchange for a virtual coin. Virtual currency can be exchanged for the currency of each country through some way. The stronger the computing power, the faster the chip can find this random answer. Theoretically, the more virtual coins can be proced per unit time. Because it's about random numbers, you can only get rewards if you happen to find the answer. It's possible that one chip will find the answer in the next second, or ten chips won't find the answer in a week. The more chips compute at the same time, the easier it is to find the answer, and the mining machine with built-in multi chips appears. And a number of mining machines to form a "mine" at the same time mining is to improve efficiency. In the mine pool, multiple "self-employed" join an organization to mine together. No matter who finds the answer and digs out the virtual coin, everyone gets the corresponding reward according to the calculation ability of contribution. This way can make the income of "self-employed" more stable
take a popular example:
I write a string of numbers on a piece of paper and give some hints. Whoever guesses correctly will be given a bonus (mining)
smart people can make more guesses (calculation ability)
some people pay money to invite many people to come back and guess together (mining)
some people call everyone together to guess, no matter who guesses, Distribute the bonus (mine pool) according to the proportion of guessing times of each person
the rest is too long, you can search by yourself...

4. Graphics card uses GPU for general purpose calculation. So it can stack hundreds of stream processors awesome. Each stream processor is like a small CPU. Although its ability to run complex programs is far from the power of CPU, it can not support many processors, so the actual performance, especially the single precision floating point performance, is much stronger than that of CPU. The actions in bitcoin can be regarded as the use of graphics card to do continuous general computing, and the computational complexity is relatively low and quite repetitive. The stream processor used by graphics card is just suitable for such an algorithm.

5. Maybe your mining needs a strong computer system, so mining needs a graphics card. The following is about the graphics card extension information<

overview
graphics card, also known as video card, is an important part of the computer. It undertakes the task of outputting display graphics. For people who like to play games and engage in professional graphic design, graphics card is very important. The display chips of mainstream graphics cards are mainly made by NVIDIA (NVIDIA) and AMD (ultra micro semiconctor). Generally, the graphics cards with NVIDIA display chips are called N cards, while the graphics cards with AMD display chips are called a cards[ 1]
computers with high configuration all contain graphics card computing core. In scientific computing, graphics card is called display accelerator[ 1]
Video chipset is the main processing unit of graphics card, so it is also called graphic processing unit (GPU). GPU is the first concept put forward by NVIDIA company when it released geforce 256 graphics processing chip. Especially when dealing with 3D graphics, GPU makes the graphics card less dependent on CPU, and completes part of the work originally belonging to CPU. The core technologies of GPU include hardware T & L (geometry conversion and illumination processing), cubic environment material mapping and vertex blending, texture compression and bump mapping, al texture four pixel 256 bit rendering engine, etc[ 1]
all kinds of 3D special effects supported by the graphics card are determined by the performance of the display chip, and what kind of display chip is used roughly determines the grade and basic performance of the graphics card, such as NVIDIA GT series and AMD HD series[ 1]
there are many ways to measure the quality of a graphics card. In addition to using test software to test and compare, there are many indicators for users to compare the performance of a graphics card. The main factors that affect the performance of a graphics card are the frequency of the graphics card, display memory and other performance indicators [1].

6. CPU can also be used for mining. The CPU was used in the earliest mining. However, with the in-depth study of mining algorithms, miners found that mining is a relatively simple but repetitive operation process. The key to improving mining efficiency is to improve the efficiency of multi task processing, and the characteristics of CPU are not suitable for such operations. On the contrary, the graphics card has thousands of stream processors. It is better at mining this simple but repetitive work than CPU. Therefore, the graphics card is widely used in mining.

7. Jiulongbi jade, also known as chalaoshi, meihuashi and Hua'an jade in ancient times, is distributed in the Jiulong River Valley of Zhangzhou City, Fujian Province
Jiulong jade has four unique characteristics:
first, it has unique connotation of dragon jade. Jiulong, dinosaur, Jasper, jade, nephrite, jadeite in one. Hence the name "Jiulong Jasper" is worthy of the name, loud and beautiful. It is the best national stone suitable for the belief of dragon jade culture in China
Second, it has huge, extra large, super large jade, rare stone resources, and its great advantage in block size. It is suitable for the huge demand of China's long-term development
thirdly, there are four types of jade of the existing dragon; There are also five types of jade. It covers many types of famous jade and stone in Chinese history. The existing original jade and its marble landscape painting; Pu jade and its hermit type; Ziyu and its shape stone and Longwen stone type; There are also Ziyu and Yuhua stone types, and Qinse jade and its strange stone types. Therefore, there are many types of dragon jade culture. The world is unique, very rare< 4. There are four types of natural jades of the same kind and heterogeneity in the history. There are also four famous jade in the history of the five elements in China. Therefore, the jade of Jiulong in Southeast China contains the later enlightenment of Chinese five element jade.

8. Compared with the complex calculation of CPU, GPU used in graphics card is general calculation. So it can stack hundreds of stream processors awesome. Each stream processor is like a small CPU. Although its ability to run complex programs is far from the power of CPU, it can not support many processors, so the actual performance, especially the single precision floating point performance, is much stronger than that of CPU. The actions in bitcoin can be regarded as the use of graphics card to do continuous general computing, and the computational complexity is relatively low and quite repetitive. The stream processor used by graphics card is just suitable for such an algorithm. It's like constantly solving equations. The graphics card is 2000 middle school students, while the CPU is 8 math doctors. Although the mathematical knowledge of the doctor of mathematics is far more than that of the middle school students, the speed of solving medium-sized equations such as virtual currency is certainly not as fast as that of 2000 middle school students. Therefore, the more graphics cards, the more operations

9. The actions in bitcoin can be regarded as the use of graphics card to do continuous general computing, and the computational complexity is relatively low and quite repetitive. The stream processor used by graphics card is just suitable for such an algorithm. It's like constantly solving equations. The graphics card is 2000 middle school students, while the CPU is 8 math doctors. Although the mathematical knowledge of the doctor of mathematics is far more than that of the middle school students, the speed of solving medium-sized equations such as virtual currency is certainly not as fast as that of 2000 middle school students. Therefore, the more graphics cards, the more operations.

10. Because mining requires a very powerful computing power, a CPU is not enough, but the graphics card can enhance the computing power by overlapping performance through fire