Development of productivity started in 1981

Chapter 215 Supercomputer Simulation Calculation of Factory 132 Fighter Aircraft Design Diagram

"Comrade Jiankun, did you have a good rest? Come, I made you some soy milk, fried dough sticks, and steamed buns stuffed with pork and green onions. Come and eat together."

The next morning, as soon as Wang Jiankun walked into the cafeteria of the guesthouse, he saw Director Yin enthusiastically calling him over for breakfast and even getting breakfast for him.

"Director Yin, thank you for your help. I can come by myself. No need to be so polite."

"It's okay, Jiankun, you should try it. The chef's cooking skills are quite good. The fried dough sticks are crispy and fragrant, and the buns are thin-skinned and have large fillings. They should suit your taste!"

"Well, that's great, Director Yin, you can eat with us!"

Wang Jiankun took a bite of the fried dough stick and it was indeed fragrant and crispy, with a very good taste, so he took several bites and then drank some soy milk to moisten his throat.

Seeing that Wang Jiankun was enjoying his meal, Director Yin felt relieved and they started having breakfast together.

After breakfast, Director Yin called Wang Jiankun to his office, wanting to learn more about computers.

"Jiankun! I heard from Mr. He that you know a lot about computers. I went to ask around last night and found out that our military industry does have that kind of supercomputer. But if you want to use it, you have to apply first, and then the management committee will review it before allocating the computer time."

Director Yin waited until his secretary finished making tea and went out before he started talking to Wang Jiankun about business.

"That's a good thing, Director Yin. If our design drawings can be simulated and modeled using supercomputers, the efficiency will be much higher, and we can also find some problems that were not considered during the design."

"Okay, but we are in some trouble now. I wonder if you can help us?"

"What's the trouble? Director Yin, I will never refuse anything within my ability. I am here hoping to help complete the design of this new aircraft."

"It's like this. As you saw yesterday, our design team is still mainly composed of senior experts. They are experienced, but they are slow to apply new things. The application materials for the use of the supercomputer require us to first write the corresponding program according to their specifications. However, our senior experts rarely use computers, and the ones they have used are the old machines from the past. The programming rules are completely different from those of the supercomputer. If we start from scratch, it will take a lot of time. So I hope you can help lead a few young researchers to complete the writing of the relevant simulation program, and then submit the application as soon as possible."

"I see. Actually, the programming rules of this supercomputer are quite simple. Chinese programming is used. Since we are in a hurry, I will take over this task and lead a few people to complete the writing of the simulation program as soon as possible."

"Thank you, Jiankun. I will assign you a studio right away, and then assign you a few assistants. How do you think the arrangements are?"

"That's fine with me, Director Yin. The personal computers and corresponding workstations we use for programming should be produced by Xingyao Group, right?"

"That's right. Our factory purchased 20 Xingyao brand personal computers and 2 workstations a few months ago. However, only a few young researchers are good at using them. They are quick to learn new things and figured out how to program after reading the manual for a while. However, none of them graduated from related computer majors, so their current programming level is average. It is still difficult to complete this kind of large-scale simulation program."

"That's no problem. I'll guide them and help them improve their programming skills as quickly as possible."

"Thank you so much, Jiankun, please wait here for a while. I will make arrangements and take you to meet those young researchers."

Director Yin was also a man of swift and decisive actions. After he finished speaking, he rushed to meet Wang Jiankun with his men.

He called a total of five people, four of whom were recent college graduates, two from Northwestern Polytechnical University, two from Sichuan University, and the other one was a worker-peasant-soldier college student several years ago. Although he was recommended to go to school at that time, he did have a comprehensive grasp of knowledge, and he studied science very seriously and diligently while in school. So although his reputation is not very good now, Director Yin's team still values ​​him because he does have real talent and knowledge.

"Jiankun, I'll leave these five researchers to you. The computers and workstations are in our factory's computer room. I'll take you there later."

"Okay, let's talk while we walk."

So Wang Jiankun and Director Yin walked in front, followed by five researchers, and walked quickly towards the computer room of Factory 5.

"Come on, Jiankun, this is our factory's computer room. This room has 20 of the latest Starry brand personal computers, that room has two workstations, and the next room has old-fashioned computers. However, we will phase those out one after another. Now someone is transferring some of the data from them to the new computers here, so it hasn't been closed yet."

Wang Jiankun followed Director Yin into the neatly decorated computer room and saw that the floor was paved with terrazzo. The lime on the walls was applied very smoothly, reflecting bright white light under the light. The top was made of thick wooden boards coated with varnish, and the wood texture was clearly visible.

After entering, you have to put on shoe covers at the door. There are two female researchers inside who also wear blue hoods and cover up their long hair. These measures should be to prevent dust and hair from falling onto these more expensive computers and affecting their operation.

In fact, the personal computers and workstations manufactured by Xingyao Group are very durable and can run very well without these protective measures. Some dust will not affect the computer at all. Even if it does, there will be no problem if you disassemble the case and blow it clean.

"Very good, Director Yin, I will start to lead them to work now."

"Okay, Jiankun, I'm counting on you."

After Director Yin left, Wang Jiankun called five researchers, first learned about their basic situation, asked them about their understanding of this personal computer and programming basics, and found that their levels were similar. They had all completed the introductory Chinese programming course and were in the advanced language learning stage.

In view of the urgency of the aircraft design, Wang Jiankun decided to complete the framework of the simulation program, and then let the five researchers organize the data and write basic programs for each sub-module, and then he would integrate them.

After this division of labor, the work of the five researchers became simpler. The introductory programming knowledge they had mastered was almost enough. Then Wang Jiankun asked them to choose some advanced programming knowledge according to the different modules they were responsible for, so that they could learn and use it at the same time and reduce the writing time.

Before 8 o'clock that evening, Wang Jiankun's clone completed the framework writing of the simulation program, and then taught the data interface, database, function library and other contents of each module to five researchers, and then led them to start writing each sub-module and get them on the road.

"Jiankun, thank you for your hard work. You are still busy here so late. Why don't you come back tomorrow? It's already past 10 o'clock."

Director Yin came to the computer room again in the evening and saw Wang Jiankun walking back and forth behind five researchers, giving them instructions from time to time or asking them to modify certain content. Seeing that it was already past 5 o'clock, he interrupted them.

"Ah? Director Yin, you're here. It's already past 10 o'clock. We've been so busy that we forgot about time. So, let's put today's programming work on hold. Everyone go back and think about the key points we explained today. We'll come back tomorrow morning to continue programming and try to finish it in two days."

When the five researchers heard what Wang Jiankun said, they looked at Director Yin. "What are you doing? Turn off your computer and go back to rest. Come back tomorrow."

So the five researchers quickly saved the program they had written, turned off the computer, and said goodbye to Director Yin and Wang Jiankun.

"Director Yin, I am going to the guesthouse to rest as well. Don't worry, I have completed the framework of the simulation program today, and will be working with them to write the programs for each subsystem. It is expected to be completed the day after tomorrow morning."

"It can be done the day after tomorrow morning, Jiankun, your efficiency is incredible. I will book a flight the day after tomorrow afternoon, and then I will bring the software materials and paper materials to BJ to apply."

"Huh? We still have to take a plane to BJ? Can't we fax it over? That would be much faster."

"Paper applications can be faxed, but our software program can't! So we still have to go to BJ, so we might as well take a plane and go there directly. After the application is ready, we have to bring several designers with us to participate in the simulation test."

"Oh, that's true. Let's talk about this for now. See you tomorrow."

Starting early the next morning, after having breakfast in the guesthouse, Wang Jiankun went to the computer room and took five researchers to gradually complete the programming of each subsystem. Director Yin came to see him every few hours, and it was obvious that he was indeed very anxious.

At the same time, Mr. He and his team of senior experts were also using the NS equations to calculate the design drawings. As they became more and more proficient in the use of the equations, their progress was rapid and it was expected that the verification of the entire aircraft shape would be completed in a few days.

By then they should have made some modifications, but it would not have any impact on the simulation software, because Wang Jiankun was responsible for writing a physical engine. No matter what the design drawing is, as long as the drawing is digitized using 3D drawing software during testing, it will be possible to use this physical engine for simulation testing on a supercomputer.

At around 3 a.m. on the third day, Wang Jiankun integrated the programs written by the five researchers, and then conducted a simulation test on the workstation. He found that this simulation software was more suitable and had very high reliability for aircraft tests below Mach 10 because he had a lot of airflow data in different airspaces in his mind.

At around 1 p.m., Director Yin solemnly took the hard drive handed over by Wang Jiankun and took the two senior experts to the airport to catch the flight.

"Jiankun, I'm going to go to BJ first. If there are any problems, you'll need to be on standby at any time. You may need to run to BJ."

"It's okay, Director Yin. If the reviewing experts have any questions, you can communicate on the phone first. I will continue to verify the design drawings with Mr. He and others in the factory."

After Director Yin left, Wang Jiankun went around and found where Mr. He and his colleagues were working. After passing the security checkpoint, he found Mr. He's workstation and started to ask for advice from him.

"Jiankun, aren't you helping with the application? How come you have time to come and give us guidance?"

"It's already done. Director Yin is flying it to BJ. I have nothing to do now, so I came to you to assign work."

"You're so quick. I thought it would take at least a week. I didn't expect you to be so efficient."

"It's fine. By the way, how is your progress now?"

"We have completed more than half of it. It should be finished in another two or three days. Jiankun, we found a lot of problems after calculation. We will have to modify the drawings. Will this affect the subsequent supercomputer simulation?"

"It shouldn't be. The supercomputer simulation will definitely find some problems. By then, we may have to modify it many times before we can complete the entire simulation test."

"That's good, Jiankun, come here, I see you have nothing to do now, come and help me calculate these first."

"Mr. He, why don't you use a personal computer to help with the calculations? This Xingyao personal computer has a mathematical modeling program. These subsystems and small design data calculations can be completed very quickly, much faster than you using a pen to calculate like this."

"Jiankun, it's not that we don't want to use it, but many of us don't know how to use computers, let alone write programs one by one."

Wang Jiankun looked at Mr. He and the old experts sitting in the office wearing glasses and doing calculations on paper, and decided to further simplify the use of supercomputers and personal computers, lower the usage threshold, and allow them to use computers as scientific research accelerators as soon as possible.

Two days after Director Yin left, he called in the evening and specifically asked Wang Jiankun to answer the call.

"Jiankun, your simulation software has been unanimously approved by the management committee. Our first batch has been allocated 10 hours of machine time, starting at 5 pm on May 2nd and ending at 6 am on May 5rd.

This time was specially chosen for us by my old comrade. The power consumption is low at night, and the power supply of the supercomputer is more stable, so it is very rare for power problems to cause the supercomputer to go on strike. "

"That's great. You can arrange the other things. The first version of the design drawings is still being revised and may not be completed until just before boarding the plane."

"That's okay. Just complete it before departure. There will definitely be some modifications to be made later. Jiankun, do you want to come over when the time comes? If there are any problems, you can solve them immediately."

"Okay, I'll come with the experts from the factory then."

After setting a time with Director Yin, Wang Jiankun and a group of senior experts worked hard to carry out partial calculations on the preliminary revised plan, focusing on the calculations of those that had been modified, and no further calculations were carried out on those that had not been modified.

On May 5, Wang Jiankun followed Mr. He and three other senior experts and flew from Chengdu Airport to BJ on a Trident passenger plane.

After arriving, Director Yin and people from the Beijing Office of Factory 132 picked them up, and they stayed there to rest that night. Early the next morning, they went to the supercomputer center established by the military industry system.

"Comrade Yin, Comrade Wang Jiankun, please take out the digital drawings you want to simulate and load them onto that workstation for a preliminary check to see if there are any dead loop programs or virus programs. If there are no problems, you can wait here, or you can go out first and come back one hour before the calculation starts."

"Then let's just wait here. We have to go through security check every time we come in, so it's a bit troublesome to get in and out."

Wang Jiankun had no objection. He handed the hard drive containing the design drawings to the staff, and then followed Director Yin, Mr. He and others to move around and talk in the area where they could move freely.

(End of this chapter)