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Processor architecture LoongArch

22.04.2021

Loongson introduced its own LoongArch processor architecture and instruction set for it. Moreover, the latest Loongson 12A3 5000nm processor has been released and runs on a new architecture with LoongArch support. Developer Loongson is no longer dependent on the MIPS architecture and licenses that made it possible to produce all previous generations of national processors.

Loongson has been in the process of creating its own architecture and command set for twenty years. It is possible that Loongson began to create its own set of instructions and a new microarchitecture after the disruption of Apple, which brought the owner of MIPS licenses, Imagination Technologies, to the verge of bankruptcy.

Ultimately, MIPS, as part of Wave Computing, abandoned the further development of the architecture and command system of the same name. She switched to RISC, and the Chinese, as it turned out, very timely left MIPS in the direction of their own development. By the way, delays in the production of new Loongson 3A5000 processors are probably related to this. Since last spring, experts have been checking the LoongArch architecture and command system for patent clearance against Chinese and international patents, sources said.

By preliminary assessment, LoongArch does not infringe patents on well-known architectures, including ARM, x86, MIPS, and others. Test systems on 3A5000 processors work fine and show high efficiency when translating commands from popular operating systems into LoongArch commands from systems.

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School and life 26.08.2012

After the Second World War, school reforms were carried out in many countries, mainly aimed at lengthening the school years. But it was only in Sweden that the government approached the matter with caution and conducted an experiment first.

Some of the children continued to study in the old way, 8 years old, for excellent students (optional) one or two more classes. The rest of the school districts introduced compulsory nine-year secondary education, with no options. The experiment lasted from 1949 to 1962, after which the results were recognized as successful and the new system was distributed throughout the country.

Recently, sociologists from Stockholm University looked at the results of the then reform from an unexpected angle: how did it affect the life expectancy of students? It turned out that up to the age of 40 in both groups the mortality was the same, but from 40 to 70 for those who studied in a new way, the risk of dying from cancer, cardiovascular disease or accidents was lowered.

Demographers have previously noticed that more educated people get sick less often and live longer than less educated people, but the Swedish experience is interesting in that it has proved the benefits of even one extra year spent in high school on the material of the whole country.

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