Ethereum eliminates GPU

1. GPU mining

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.

2. Do you still want to mine now? The calculation mainly comes from the graphics card. The others don't need to be good. The a-card of the graphics card needs to give the n-card good. There are 629 pieces of i34170, 39 pieces of ice radiator, ASUS b85m-g, 419 pieces, Weigang 8g1600, Weilong, 210 pieces, Seagate 1TB hard disk, 288 pieces, sapphire r9390.4g, 2299 pieces, Hangjia WD500 rated 500W, 299 pieces, and the chassis is free

3. Mining has nothing to do with video memory. It depends on the core computing power of GPU. As long as it is a graphics card, it can mine, but it only selects high-end graphics cards with high performance price ratio. There are special non graphics card mining machines that don't use graphics cards to mine. However, the mining machine can only mine the corresponding currency and can't change the currency by itself. If it is a graphics card mining machine, it can mine any currency as long as it has an algorithm

5.

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

6. Pro, are you going to get rich or interested in mining? If I'm interested, I won't say anything. If I want to get rich, I'll advise you. Forget it. It's not worth it. Now mining is a loss business

7. It's better not to exceed 1100 cores. In fact, 1050 cores are just a little bit more than 1100 cores
because even if we go up, the improvement will not be obvious. The card game is still the card
don't over store the video memory
the core performance of 370 is only average at present
bandwidth is not the bottleneck< In fact, surpassing is just psychological comfort
running points
slightly higher

8. If the price of virtual currency is reced, there will be less people to buy graphics cards and fewer people to buy them, which will affect the supply and demand of graphics cards
as long as the supply exceeds the demand, the price will drop