Recently, I encountered a very interesting problem, I said it to share with you, I accidentally saw a friend asking: why only one CPU is installed in the computer? Isn't it possible to install a few more?
See that there are many friends here who will have the same problem? In fact, it is estimated that many people here have any misunderstanding about this computer. Who told you that computers can only have one CPU? The reason why we usually only see one CPU is because this part of the computer is aimed at us ordinary consumers. You can't think that the computer we usually see is a CPU, then all computers are just a CPU, if you think this way, it only proves that your understanding of computers only stays on home computers.
I'm going to tell you that a computer CPU is defined according to its different uses. The use and use scenarios are different, and the number of CPUs required is also different. Generally speaking, multiple CPUs are used on the server, and they will choose multiple CPUs according to their computing power needs, which is what we usually call two-way, four-way, eight-way, and more. Take our "Shenwei Taihu Light" supercomputer as an example, it has more than 40,000 CPUs. Not to mention the CPU here, even the GPU can also run in multiple ways. It's just that we ordinary users don't need it at all.
You can look at the performance of personal PCs over the years, and he can fully meet the needs of the public. Take the current consumer-grade i9 14900K as an example, his performance is already in a state of overperformance. Let me tell you this, for those of us ordinary home users, not to mention the i9 14900K, even a processor like the i3 10100 can meet the needs of most people. Is it necessary for you to install more than two CPUs? At this stage, basically 4 cores and 8 threads are enough for our ordinary work, and 8 cores and 16 threads are enough for the higher requirements. Isn't it a waste for you to build a four-way or eight-way one? Rather than wasting money and building multiple CPUs, it's better to go directly to a high-performance CPU.
Let me give you an example, we can compare a single i5 or R5 CPU to the speed of a car, a single i7 or R7 CPU to the speed of a high-speed train, a single i9 to an airplane, and multiple high-performance processors to a rocket. If you want to take a high-speed train or a plane, you can't say that you want to take a rocket faster, right? This is the same as the computer, a CPU is very convenient to maintain in the later stage, and the accessories are also easy to match, while the multi-channel processor has a high maintenance cost in the later stage, and special accessories are also needed. Therefore, few people use it to build multi-socket CPUs at home.
Now there are indeed some people who go to the market to dig for outdated "foreign garbage" Zhiqiang series processors to build multi-channel solutions. But they are mainly pursuing cost performance, after all, the price of this part of the CPU is cheap, even if all the hardware adds up, it may not be as expensive as a single CPU, so many friends who like to toss hardware will set their sights on this part of the processor. In fact, it is not impossible to use this part of the Zhiqiang series processors, as long as you have a reasonable match, you can indeed build a multi-channel solution, but don't try it if you don't have a computer foundation. Because the chance of overturning is also very high. Personally, I still say that if you are a person who pursues stability, there is no special use, the performance of one processor on the market is completely sufficient, and there is no need to get any multiple processors. I don't know what you guys think about this?