Start sweeping the universe by rubbing the CPU with your hands

Chapter 47 Caching
The current scale of the rejuvenation base is still small.When the scale expands in the future, it will be impossible for the base to operate without purchasing hundreds or thousands of units.

In particular, Han Yang plans to dig an underground base after the computing power is upgraded again.

The Fuxing Mall on the surface was just a cover. For safety, Han Yang decided from the beginning that the future would definitely be developed underground.

But for the excavation of the underground base, Han Yang would definitely not be able to find a large number of workers and mobilize a large number of heavy equipment to do it.

You still have to use your own computing power to control the robot to mine.

By then, the requirements for computing power will be even higher.And after the base is built, in order to operate more equipment and conduct more scientific research, the number of robots required will not be small.

Han Yang was filled with anticipation when he imagined that he would have greater computing power and control thousands of robots busy in the base at the same time.

But at this stage we can only look forward to it.If we cannot develop more advanced chips and cannot improve computing power, everything will remain a mirror image.

Time passes slowly.Half a month after the first trial production, on this day, as usual, the robot moved a box of materials stacked in the corner of the research room to the source of the production line, opened it, and poured the materials into the feed port.

Stationary robots work together with machines to start processing the batch of materials.The ten mobile multi-functional robots shuttle back and forth in the production line like conscientious workers.

Incoming materials, operations, sorting, integration, and discharging are all done in an orderly manner.

Han Yang is the only one in the entire large research laboratory. At this moment, he is still listening to a lecturer from the mathematics department in front of the computer.Behind him, everything is handed over to machines and robots, like a fully automated assembly line.

When this batch of raw materials turned into specific types of cables and came out of the outlet, they were gathered into bundles by robots and sent to special testing equipment for inspection. The numbers on the instrument came into Han Yang's eyes, and Han Yang was immediately impressed. Feeling refreshed.

After half a month of repeated modifications, debugging, and attempts, the first batch of cables that met Hanyang's needs were finally produced.

A total of 100 cables were produced in this first batch of production.Their length is 12.5 cm, with a small joint at both ends, which looks very delicate.

On the other side, another piece of equipment was also roaring, producing something as small as a grain of rice, which was also sent to the inspection equipment.

These things are all transistors.

Cables are equivalent to circuits, and circuit boards are equivalent to silicon wafers. Silicon wafers, circuits, and transistors are the three most important things in constructing a CPU.

In regular CPU production, transistors and circuits are directly etched on silicon wafers with light, so there is no such trouble.

At this moment, Han Yang could only replace photolithography technology in this way.

At this moment, the circuit board that meets Han Yang's needs, as well as the first small batch of cables and transistors, are ready.

As soon as Han Yang had an idea, a multifunctional mobile robot carefully picked up these materials and placed them on the work platform.

The fixed robot on the work platform immediately received Han Yang's computing power.

Under Han Yang's direct operation, a new generation of CPUs finally officially started manufacturing.

During this period of long-term study, Han Yang had gradually conceived the architecture and manufacturing methods of a new generation of CPUs in his mind.

Compared with the previous generation of CPUs, the logical structure of this new generation of CPUs is more complex.Han Yang added multiple self-created instruction sets to it, and adopted the pipeline design model for the first time.

Pipelined circuits greatly improve efficiency by allowing multiple instructions to perform different tasks at different locations on the circuit at the same time.This is a very mature technology.In modern society, even the oldest CPUs have largely adopted this technology.But for the circuit board CPU that Han Yang made by hand, this is the first time to use this technology.

According to theoretical predictions, this technology will greatly improve the performance of the CPUs it manufactures.

In addition, Han Yang also added a cache of up to 4KB to this CPU for the first time.

Modern CPUs generally have three levels of cache to maximize performance.But for Han Yang, building a cache structure is already the limit of existing technology.

The addition of many new designs has made this CPU architecture much more complex than before, and accordingly, the manufacturing difficulty has also increased a lot.

Although Han Yang has designed this structure in advance, Han Yang knows that theories are just theories after all.

In specific manufacturing, there will inevitably be many new problems that have not been discovered before.

Soldiers came to cover up the water and earth, and solving each problem found was the only feasible solution for Han Yang at this moment.

As Han Yang expected, problems arose before the first batch of 500 transistors and 100 cables were used up.

Welding accuracy is not enough.

Cables and transistors are too small. When they are fixed to the circuit board by welding, the welding ports will interact with each other, causing a short circuit in the circuit.

This is a problem that has never arisen before.

Han Yang spent a lot of time thinking about this issue.In the end, Han Yanghua hurriedly bought a high-precision welding gun at a high price and purchased special solder to solve the problem.

For this reason, the first batch of transistors and cables, as well as circuit boards were all scrapped and turned into garbage.

Fortunately, the second batch of transistors and cables had been manufactured, so Han Yang was not kept waiting.

After solving this problem, Han Yang continued to start manufacturing.

Then not long after, a second problem arose.

Han Yang discovered that there was a bug in his original design. The two modules in the CPU are too far apart and are located on two different circuit boards. They need to be connected by a cable with a length of 62 cm.

However, cables manufactured with existing technologies cannot achieve the required accuracy and speed.

There was no other way, Han Yang could only adjust the structure, build these two modules on the same circuit board, and move the module originally assigned here to other circuit boards.

But in this way, it will affect the overall structure, affecting the whole body. The communication reliability, communication delay, etc. between all modules must be reconsidered.

Fortunately, this is only an adjustment to the overall structure and does not involve details, so it is not too troublesome.Han Yang spent five days adjusting all this.

After that, the manufacturing work continues.

After the third day, Han Yang's work stopped again, and he started researching and thinking again. After two days of interruption, the work continued, then stopped again after continuing for four days, and then stopped again after another three days. …

(End of this chapter)