"It's enough. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 info" Lu Ze sighed a little: "A hundred years ago, even if all the scientific research institutions in the world were combined, it was impossible to have so many computing resources. ”

"Is 10 million gigabytes a lot?" He Ruiyin asked curiously.

"Just looking at the storage space, 10 million Gb is really not much, if DNA storage technology is used to save the data, 10 million Gb of data is about equivalent to a hair." ”

"A single hair can be better than a computer a hundred years ago combined?" He Ruiyin's eyes widened suddenly, "But I feel that a virtual world is nothing." ”

"Of course it can't be such an exaggeration." Countercurrent smiled and explained, "The information stored in DNA is very complex to read, and it is impossible to call it at any time during the calculation. In addition, computing resources are not simply compared by storage space, but by computing speed. ”

"Is that so?" He Ruiyin looked at Lu Ze as if he understood or not.

Lu Ze nodded, then thought for a while, and said: "10 million Gb of memory is about equivalent to 10,000 ordinary personal computers in the past, but it is not appropriate for singularity to use memory as an analogy, if according to the computer system a hundred years ago, this 10 million Gb space should be regarded as a cache for CPU or GPU, not memory." ”

Although Lu Ze is a science fiction writer, he can become the "father of the Star Spirit Network", and naturally he also has extremely rich computer knowledge, and at the same time, he also has a certain understanding of the Star Spirit Network in this era, or the digital neural network architecture.

Singularity: "Yes, the biggest difference between digital neural networks and the computers of the past is that there is no concept of 'memory' anymore. ”

"How does that compare to computers from a hundred years ago?" He Ruiyin said curiously.

Lu Zedao: "If calculated in this way, the computing resources we have are equivalent to billions of personal computers or millions of supercomputers a hundred years ago. ”

In fact, Lu Ze's words were not finished, a hundred years ago, even if there were really so many supercomputers, it was impossible to use them in parallel as one.

In fact, even two units can't do it.

If you can simply use supercomputers in parallel, why not just build more CPUs to get faster computing speeds?

Because the most difficult part is how to get so many chips to do parallel computing without conflicting when exchanging data.

It is a sad and ridiculous reality that those who work on supercomputers hope that programmers would do their best to change all serial algorithms to parallel without the slightest redundancy, while programmers want supercomputers to do their best to increase the speed of serial calculations by a factor of 1000.

The end result is that the performance of the supercomputer is not fully realized, and it usually only exerts about 10% of the theoretical calculation speed.

"This ...... That's an exaggeration, isn't it? He Ruiyin's eyes widened and he muttered.

Singularity said: "If you compare it in terms of the number of CPUs, this is true, but if you want to talk about computing speed, these computing resources are estimated to be equivalent to the sum of dozens of supercomputers." ”

"That's right." Lu Ze nodded.

The speed of supercomputers comes from parallel computing, as do the computing resources in digital neural network architectures.

Parallel computing is like having a large group of people do the same thing, but the problem is that not everything can be done by a group of people.

Therefore, although the digital neural network architecture can connect CPUs in parallel without limit, it cannot increase the computing speed indefinitely.

If in the past, supercomputers could only exert 10% of the theoretical computing speed, now they can use so many computing resources to run a virtual world, and the performance is estimated to be only one millionth of the theoretical one-millionth.

Of course, even if the productivity of human beings today is not the same as in the past, and the material is extremely abundant, it is impossible to accept the waste of one million to one, but considering that the neuronal nodes in today's neural networks are all constructed by nanorobots, the cost is also countless times lower than that of the CPU in the past, so this is not a waste.

As for the quantum computer, which theoretically has infinite computing speed, it is actually deified by the science fiction of the past.

The computing speed of quantum computers is also derived from quantum parallel computing, and when it comes to serial computing, quantum computers are not superior to classical computers.

All in all, although human beings in this era have quantum computers, DNA storage technology, neuronal computers, and so on, the progress of human civilization in the field of information in the past hundred years can only be said to be decent.

Singularity continued: "In addition to the method mentioned above, there is another way to increase the size of the community space, and that is to increase the number of people in our community. If we can reach 100 people in the community, then the computing resources we occupy will increase to 100 Pb, which is ten times the current one, and so on, for every ten times the number of people in the community, the computing resources that can be occupied by the community space will also increase tenfold. ”

Lu Ze suddenly thought of a question, and was instantly shocked: "According to this calculation, wouldn't the computing resources occupied by the community space of the 'Dream Tower' have to be 1 billion Pb?" ”

It may not feel like this alone, after all, when the number is large enough to numb people, but if you compare it with a hundred years ago, it instantly shows the difference.

Before Lu Ze's hibernation, the total amount of computer data of the entire human civilization was about 10Zb, and 1Zb was equal to 1 million Pb, that is to say, the amount of information occupied by the community space of the "Dream Tower" alone was a hundred times that of all the data of the entire human civilization in the past, including meaningless junk information and repetitive information!

"Yes." Singularity said: "However, the people of the 'Dream Tower' did not just use these computing resources to build a community space, but built tens of thousands of virtual game worlds, some of which are larger than the entire earth. In fact, not only the 'Dream Tower', but also the 'Pioneer House' has reached 1 billion people, but unlike the 'Dream Tower', the 'Pioneer House' uses all computing resources to build a virtual world. (To be continued.) )