Multiple computers provide computing power for a program

1. 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

2. 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

3. < UL >

the system is unstable e to high temperature. Please check if there is any problem in the heat dissipation of CPU, graphics card, memory, hard disk, motherboard, etc. When checking the above components, check whether there is a problem of false soldering of electronic components or circuits, which makes the system unstable at high temperature, and confirm again whether it is a problem of display or power supply

graphics card driver, the computer has a common feature when running software, that is, the screen resolution will be switched, if you use 1024 × 768 resolution, when running some large software, it is easy to switch to a lower resolution. If there is a problem with the driver of the graphics card, it is likely that there will be a failure when switching the resolution, resulting in the computer black screen. The problem can be solved after updating the driver of the graphics card

the version of DirectX is too low. If the version of DirectX is too low, the problem of black screen can be solved by installing the graphics card driver and the latest version of DirectX program

4. First of all, NVIDIA experience does not unify the computing power. It just sets the game to suit your graphics card. NVIDIA's shield uses the computer in the LAN to calculate, and it only uses the shield to play computer games. Android games or its own Tegra K1
Second, if you use this for online games, You have to consider your network bandwidth. In a short time, you don't expect China's broadband to transmit 1080p video smoothly, and there will be a lot of delay
moreover, if online game companies do this, imagine that the average computer for playing online games is about 4000 to 5000 yuan. How many computers do online game companies need to render pictures for each player? How much does it cost? Well, even if we remove some of the same rendering content of players, it will cost hundreds of millions or billions or more, as well as electricity bills and heat dissipation. Can you imagine how terrible this is?

5. First of all, we need to make a constraint on "stronger computing power", because in addition to the calculation speed of CPU / GPU, we also need to consider the data transmission speed (bandwidth) between multiple computers and disk I / O. In many cases, the time consumed by data transmission is much longer than the computing time
all tasks supporting parallel computing can be split into multiple parallel computing processes. Taking maprec as an example, most maprec algorithms need to satisfy the commutative law and the associative law. Therefore, it is necessary to ensure that the tasks performed meet the requirements of parallel computing models (maprece, MPI, etc.), including algorithm and data structure. Or, the results of the original algorithm can be approximately obtained by using the algorithm satisfying the parallel computing model
from the implementation level, the simplest way is to use the existing parallel computing framework, such as MPI / openmpi, to write algorithms to perform tasks in its framework. Using Hadoop is another choice, but Hadoop is more suitable for big data storage than computing intensive tasks because it is a master-slave structure and has some overhead for disaster recovery support
btw: the SLI and crossfire technologies of GPU can also be regarded as such an implementation to some extent.

6. We usually have to wait about 30 degrees for the cold water temperature on the cologne water. I think this can bring us better use.

7.

The inlet and outlet temperatures of the central air conditioner are set at 7 ℃ and 12 ℃ respectively

from the perspective of energy saving, it is necessary to increase the temperature of chilled water and rece the temperature of condensate water

the temperature of chilled water should be adjusted to ensure that the temperature difference between the minimum temperature required or set by the terminal equipment is 8-10 degrees

7-10 degrees, 7-15 degrees, it doesn't matter; If the water temperature is adjusted to 15 degrees, the end of the wind will be around 24 degrees

extended data:

the standard temperature difference of chilled water is 5 ℃ and the temperature is 7-12 ℃; The temperature difference of cooling water is 5 degrees, and the standard is 30-35 degrees; But in use, it is generally designed according to 32-37 degrees. As long as the temperature is within this range, the temperature is not specified

for air conditioning chillers, the standard working state of chilled water is 5 ℃ temperature difference, and the temperature is 7-12 ℃; The standard working state of cooling water is 5 ℃ temperature difference, and the standard working state is 30-35 ℃ 28 ℃ wet bulb; But in use, it is generally designed as 32-37 / 28 degree wet bulb. Other temperature differences are designed as non-standard working conditions

for air conditioning chillers, the standard working state of chilled water is 5 ℃ temperature difference, and the temperature is 7-12 ℃; The standard working state of cooling water is 5 ℃ temperature difference, and the standard working state is 30-35 ℃ 28 ℃ wet bulb; But in use, it is generally designed as 32-37 / 28 degree wet bulb. Other temperature differences are designed as non-standard working conditions

8. 1. The principle is that the lower the heat, the better, because less heat is brought into the cold storage
2. However, if the temperature of the condensate water is too low, the high-pressure pressure will be too low, which will affect the flow of the refrigerant through the expansion valve and directly rece the refrigeration efficiency
3, The lower the condensing temperature, the better
using evaporative condenser can solve the problems of too high pressure in summer and too low pressure in winter

9. Hello, for the time being, Shaoyang central hospital is close to the south bus station. You can take bus No.18 directly to the central hospital.

10. The earliest bus is 6:30. You can take No.1, No.18, No.6 at Hongqiao east station. It's about 10 yuan by taxi