Computers provide computing power

1.

The types of chips that provide computing power for AI include GPU, FPGA and ASIC

GPU is a kind of microprocessor specialized in image operation on personal computers, workstations, game machines and some mobile devices (such as tablet computers, smart phones, etc.). It is similar to Cu, except that GPU is designed to perform complex mathematical and geometric calculations, which are necessary for graphics rendering

FPGA can complete any digital device function chip, even high-performance CPU can be implemented with FPGA. In 2015, Intel acquired the FPGA long alter head with us $16.1 billion. One of its purposes is to focus on the development of FPGA's special computing power in the field of artificial intelligence in the future

ASIC refers to the integrated circuits designed and manufactured according to the requirements of specific users or the needs of specific electronic systems. Strictly speaking, ASIC is a special chip, which is different from the traditional general chip. It's a chip specially designed for a specific need. The TPU that Google recently exposed for AI deep learning computing is also an ASIC

extended data:

chips are also called integrated circuits. According to different functions, they can be divided into many kinds, including those responsible for power supply voltage output control, audio and video processing, and complex operation processing. The algorithm can only run with the help of chips, and because each chip has different computing power in different scenarios, the processing speed and energy consumption of the algorithm are also different. Today, with the rapid development of the artificial intelligence market, people are looking for chips that can make the deep learning algorithm perform faster and with lower energy consumption

2. The floating-point computing power of single processor is 3tflops

MPE, 8gflops

CPE, 11gflops

the peak computing power of Shenwei Taihu Lake light system reaches 100pflops<

it is necessary to mention here that floating-point computing power refers to the processing power of computer floating-point computing, and the computer has a special floating-point processor FPU for floating-point processing.

home computer 2G Hz, 4G Hz refers to the dominant frequency of the computer, the dominant frequency is 4G Hz, and the floating-point processing power of the computer is about 4gflops. However, the dominant frequency is not equal to floating-point processing power

dominant frequency means the number of computer clock cycles per second. The more processing per second, the more powerful the computer is

the main frequency of CPU does not represent the processing power of CPU and the influence of instruction pipeline on the processing power of CPU

clock cycle is the basic unit of CPU operation, and a floating-point calculation may need several to dozens of clock cycles. So the relationship between the dominant frequency and floating-point processing power is obvious.

3. Do you say PC? In my opinion, any computer has the ability of parallel computing. It depends on how you define it. Parallel computing and distributed system are both computing methods, not hardware specifications

each task in your operating system has a process, and each process is composed of many threads. If you've ever had an operating system class, you should have met multi threads programming. You let different threads cooperate to complete the same task, which is actually called parallel computing and distributed processing.

you can see that the projects of those parallel computing classes also run algorithms with ordinary computers, The key point is that you will simulate this environment. Just like those who run network algorithms use socket to simulate, they also use a PC to simulate the network of N workstations.

if you say multi-core CPU, First of all, you don't have access to the firmware of ordinary motherboards. So you have to buy a programmable board of general purpose, But if you want to buy a multi-core basic, you can't find it... Only in the laboratory can you have it... Even if you find it... I think that the money for that board is estimated to be several times of the tuition for you to go to graate school and then enter the laboratory...

in a word, if the software is implemented, today's PC should have no problem, As for how to start parallel computing mode, you need to read the datasheet of this board.

I don't agree with the above saying that there must be two cores, People with two brains can do parallel. But the left brain and the right brain of one brain are also parallel. When refining different neurons, the other completely independent neuron is also parallel. Parallel is a way to solve problems, an idea. Parallel computing was first proposed in 1912. I can't remember when the multi-core processor appeared, But after 2000, at least

4. That is remote control, right? At present, there are many remote control systems on the Internet, such as grey pigeon, cyber man and so on. At present, I am using 51MyPC, which has been used for nearly half a year. I feel good
in order to avoid the suspicion of advertising, you don't need to send the website. You can search the Internet directly. There are instructions on the official website

5. A price limit order is a transaction based on the price you set. Sometimes we judge that the price will rise, but it will fall before it rises. That is to say, in a later period of time, the price will be lower than the current market price, and then it will enter an upward trend. Therefore, the direction of trading is definitely to be long, but in order to get a better price, you can hang a limit order. Although the set price is below the market price (the limit order can only be set below the current market price), once the set price appears in the future, the hanging order will be turned into a market order and executed. The same logic applies to limit order, but the direction is opposite. Stop loss list is your own investment strategy. You can sell the stop loss to what extent the stock falls. Sometimes we will use the break through trading system. For example, when the price breaks through the resistance level, it can be determined that it is an upward trend. At this time, we can use the stop loss to pay. The set price will be above the current market price (the stop loss order can only be set above the current market price). Once the set price appears in the market, that is, breaking through the resistance level, the order will be converted into a market order. Stop loss selling is the same logic, but in the opposite direction. The most important thing in stock speculation is to master certain experience and skills, and make accurate judgments. If a novice is not familiar with the operation, he can use a simulation disk to practice for a period of time to sum up experience,

6. No, if multiple programs are running at the same time, the al core 2.2g is better than the single core 4.4g. If it is a single task, the 4.4g single core is certainly better. Now u is developing towards multi task operation. For example, if you watch a movie with 4.4g, it's no problem. If you open a few web pages or games at the same time, the cup will happen, but the al core 2.2g is different.

7. The work done by gravity is related to the initial and final position of the object, but not to the path

work w = - Mg * (z2-z1) = - 100 * 9.8 * (2-8) = 5880 (Jiao)

[welcome to inquire, thank you for adopting!]

8. There are different instruction sets.
if you play 360 games with PC through simulator,
you are in a circle.
you should understand the story of tortoise and rabbit race

9.

At the programming level, first of all, 1, 2 and 3 are binary shaping variables,
(why binary?)

my understanding is that binary operation is more convenient than 99 multiplication table

high and low levels (voltages) are easy to express and difficult to make mistakes, but if you want to divide them into a series of different voltages... It's a thankless thing demanding high cost and hard work. In short, it's money burning. It will also be very expensive. Will you buy it They are simple to work with -- no big addition tables and multiplication tables to learn, just do the sample things over and over, very fast.

they just use two values of voltage, magnetism, Or other signal, which makes the hardware easy to design and more noise resistant.

for computers, binary numbers are great things, because:

they simply work together - there is no big addition table and multiplication table to learn, just do the same thing over and over again, very fast

They only use voltage, magnetic, or other signals, which makes the hardware easier to design and more noise resistant
they are all binary numbers in essence - suppose they are represented by 8 bits (16 bits plus 8 zeros), It can represent a larger range without overflow):
this is 1-00000001 - = 0 + 1 in computer eyes
this is 2-00000010 - = 2 + 0 in computer eyes
this is 3-00000011 - = 2 + 1 in computer eyes

binary bit by bit addition:
case 1: 0 + 0 = 0
case 2: 0 + 1 = 1 + 0 = 1
case 3: 1 + 1 = 0, and carry

10. The computer mainly depends on the CPU processing power of the computer chip. If the mobile phone chip is stronger than the computer chip, it is stronger than the computer, but the display area is not as large as the computer