roccoschili Page 537
Page 537
"Evaluation of the relationship between the Soviet Union's large presence on Polish territory and Polish sovereignty"
……
One month after the death of First Secretary Beirut, many inexplicable articles appeared in Polish newspapers and magazines.
Soviet diplomats in Poland had keenly sensed something ominous.
"Since the death of Beirut, there has been a false attempt in the Polish press to stir up revisionism and anti-Soviet sentiment. Now Beirut's heir is Ohab, a centrist representative of the party, who has caused many People are dissatisfied."
Although the Soviet ambassador Ponomarenko was very anxious, but limited by his own authority, he felt unable to do anything about these matters.In the report to Moscow, he wrote worriedly.
"After the 617th National Congress of the Communist Party of China, the strength of the opposition in the Polish party began to accumulate, and the people's resistance was directed towards Moscow. This is a very bad phenomenon. In Poland, a big incident similar to the [-] incident in the Republic of Germany may break out at any time. Large-scale social events."
"My suggestion is that Marshal Rokossovsky and even the standing wave group should increase their combat readiness and take certain actions in order to control the situation within the allowable range."
Chapter 123, From supercomputing to the second reactor
boom! "
The secondary guns of the cruiser "Dmitry Pozharsky" of the Soviet Navy burst into flames, and the sound of the guns echoed over the city.
After the seven-gun salute of the Soviet warships was completed, the Keeling-class destroyer "Suzhou" of the East China Sea Fleet who came to greet them also loaded blank shells into the small guns and fired. After the warships of the two countries greeted each other, "Suzhou" led three Soviet warships, Enter the Huangpu River and stop.
This is the first time that a Soviet warship visited Shanghai after the founding of New China.It's been seven years... It's not that the relationship between the two sides is not good, but that the Soviet Navy still rarely goes out to sea. In 1956, it finally organized a long-distance voyage training from Vladivostok to Indonesia, and stopped in Shanghai for a few days along the way.
The flagship "Dmitry Pozharsky" is a 16000-ton Sverdlov-class light cruiser, and the other two small followers are "Intellect" and "Enlightenment", 30bis destroyers.
Lt. Admiral Chekulov, commander of the Soviet Pacific Fleet, led the fleet to visit.The standard of the Chinese welcome was also very high. Navy Commander Xiao Jinguang flew from Beijing to Shanghai to welcome the visiting fleet. In addition, Ke Qingshi, Secretary of the Shanghai Municipal Party Committee, and Chen Pixian, Deputy Secretary of the Municipal Party Committee were also present.
Now, Tang Hua can see the large cruiser moored in the Huangpu River from the roof of the Shanghai Institute of Computer Science.At night, the Bund is brightly lit, and the "Dmitry Pozharsky" also lights up its electric lights to reflect its silhouette.
The three Soviet warships have made the deserted Huangpu River lively in recent years. Lieutenant General Chekulov flew to Beijing to visit the General Staff and the Navy Command after landing. The warships docked these days have been open to Shanghai citizens for viewing.In order to show reciprocity, ships 106 and 108 are also parked in the Huangpu River and open to the public-these two ships have never been visited by ordinary people since they entered service.
The huge body and forest-like gun barrel of the "Dmitry Pozharsky" made the audience call it amazing.On the other two open warships "Intellect" and "Enlightenment", some visitors discovered the mystery:
"Hey? How come the missiles installed by the Soviet Navy are the same as those on our warships?"
"That's right, I boarded the Hangzhou and saw it yesterday, and it's this kind of missile."
"I heard that the Soviet Navy is now using our Chinese missiles, is that it?"
"I don't believe it." "If you don't believe me, let's take a closer look."
Within the scope allowed by the tour route, the people who visited the ship took a closer look, and sure enough, they found the mark of "Jiangsu Yizheng Electromechanical Second Factory" at the butt position of the anti-ship missile launcher.
……
It took 4 days before and after Chekulov flew back to Beijing for a visit. During the past few days, 14000 Shanghai citizens boarded the ship to visit. Of course, they all had to issue a letter of introduction from the unit.
"Did the Soviet Navy bring a supply ship this time? They are going to Indonesia."
Tang Hua asked a question.
It is 2000 kilometers from Vladivostok to Shanghai, and 4900 kilometers from Shanghai to Jakarta.It is no problem for the cruiser to sail continuously for 4900 kilometers, but the endurance of the two destroyers is only 3000 nautical miles (5500 kilometers), which is almost the limit range.
“Soviet warships set off from Shanghai to visit Haiphong Port in North Vietnam, and then go to Jakarta from Haiphong Port,” Cheng Wang said.
Tang Hua: "So I have to think about it, where is our supply ship?"
Cheng Wang: "The navy has not made this request yet."
Tang Hua: "If we wait for the navy to make this request before we design, it may be a bit late. ... It's time to prepare for the construction of the [-]-ton round."
Tang Hua's thinking jumped like this, and Cheng Wang's brain turned for a while before he realized it: "By building [-]-ton rounds, can you accumulate experience in designing and building large-scale supply ships?"
"Exactly."
……
After the first supercomputing meeting, Lebedev proposed to let the users of the supercomputing come to discuss together in order to better establish a new supercomputing model. As soon as Tang Hua contacted Zhu Kezhen, Lao Zhu came to Shanghai immediately.
A week later, Qian Sanqiang also came.
When Zhu Kezhen arrived in Shanghai, he dropped a blockbuster, or bad news, at the first meeting.
"Don't mention the program I used to apply for calculations last year. During this period of time, I have thought about it many times. The program has too few parameters and the accuracy of numerical calculations is too low. It may not be possible to make medium- and long-term weather forecasts with sufficient accuracy. .”
Zhu Kezhen took out a box of data backup tapes, which contained the new medium- and long-term weather forecast planning scheme and numerical calculation program of the Bureau of Meteorology.
The Shanghai Institute of Computer Science spent two days creating a program to estimate the calculation volume of the numerical calculation program of the Meteorological Bureau.
The estimated results show that if a mid-to-long-term weather forecast system is to be established, the supercomputing speed used in conjunction with it is not 1 million operations per second, but at least 3.3 million operations per second.Of course, faster is better, and the Meteorological Bureau is never too fast.
This is only regional, such as doing North China, Central China and so on.The whole country will do it together... about six or seven units will be produced, and the Northeast/North China/South China Computing Center of the Meteorological Bureau will be established?
Tang Hua rested his chin on his left hand, writing and drawing on the paper.
Making Clay-1 now is more troublesome than it was in the 70s, but Tang Hua has some advantages over Seymour Cray.
Clay has only one computer company in his hands. He designs supercomputers based on computer components available in the U.S. market, including processing chips and memory chips. At most, he only issues custom contracts to chip factories. The designed supercomputer is more cost-effective, and Clay tries not to order it but uses off-the-shelf chips on the market.
And now Tang Hua can mobilize a computer industry system...
"Then now we will formulate the system architecture based on the main frequency of 80 megahertz," Tang Hua said after thinking for a long time, "we will ignore the design and manufacture of the chip itself for the operating frequency of 80 megahertz, Xie Xide and Huang Kun will definitely Solved, what we have to solve is the connection line problem inside the supercomputer.”
"The system architecture should reduce the distance between the main processing units. The operating frequency is 80 MHz, which means the wavelength is 3.75 meters. In the past, we used a large cross-shaped structure. Now the four cabinets outside the large cross-shaped structure are no longer suitable for placing the main processing units. computing unit, we have to arrange all the main computing units closely.”
The sketch drawn by Tang Hua is not a cross shape, but a clock dial, with more than a dozen cabinets arranged concentrically, but two cabinets are missing for installation and maintenance, so the 12 cabinets are arranged in a C shape.In this C-shaped cabinet array, the innermost part is equipped with processing chips, that is to say, this large pile of chips together forms a super processor.
The connection of tens of centimeters between them is actually equivalent to the internal circuit of the CPU integrating millions of transistors in later generations.The current technology cannot integrate millions of tubes, and can only be built with many chips.
It is still the structure of the Clay system, so don't try the Iliak-4 road.
"I have another idea," Lebedev said, "it is dedicated to vector processing, so the use of long bytes will improve the operation efficiency to a certain extent, such as using 24-bit addressing and 64-bit word length."
Tang Hua nodded in agreement.It is acceptable to develop 64-bit chips specially for supercomputing-the design cost of thousand-tube chips is not as high now as it will be in the future.
克雷-1的峰值运算速度有160MFPS，1.6亿次。克雷牌超算后来量产并且形成了系列，克雷-1X MP就达到了800MFPS或者说400MIPS，实际工程设计者还是个叫史蒂夫·陈的华人。发展到克雷-2的时候，运算速度就到了10亿次量级。
Lebedev: "There is also memory capacity. According to Zhu's request, at least 1MB is required. The words here are 64-bit words."
...Come on, it's just crazy about thousands of pieces of memory, it's a small thing.
……
"Boss Rong."
"Let's call me Vice Minister Rong. I don't have a factory under my name now." Rong Yiren said with a smile, "Is Madam...going to film with the crew?"
Tang Hua nodded, "It's not far away, to the north of Jiangsu and Shandong. Is Minister Rong entering the half-year cycle of working in Shanghai?"