Chinese semiconductor industry

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4Runner

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Not a surprising development if you look back at previous Loongson chips. In 2009 the Loongson 3A1000 chip was released that supported two ISAs (MIPS64 Release 2 and LoongISA 1.0). The latest Loongson 3A4000 chip released in 2019 also supports two ISAs (MIPS64 Release 5 and LoongISA 2.0). Since 2009 Loongson has adopted a strategy of supporting the MIPS architecture as well as its own LoongISA architecture.

What is not completely clear in the article is the direction of future ISA development. The articles implies that Loongson has developed a new LoongArch architecture and will drop MIPS support in the future. That leaves two possibilities:
(1) Loongson drops MIPS and supports RISC-V and its new LoongArch ISA architecture.
(2) Loongson drops MIPS and supports just its new LoongArch ISA architecture.
Given that many other Chinese companies are evaluating and performing R&D towards RISC-V, option (1) is the most likely. I can't imagine option (2) happening because previously Loongson was never confident enough to drop support for MIPS and support its own ISA architecture.

Why is Loongson dropping MIPS support now? Simply because MIPS is not popular and the architecture already lost to ARM and x86 decades ago. RISC-V is new (lots of interest) and there are a lot of companies doing R&D with the open source ISA. Furthermore there are no dominant/established RISC-V CPU chips in the market. That means Loongson has the possibility to create the first (or early) commercial RISC-V CPU and establish a first-mover advantage. Loongson's first commercial MIPS chips in 2009 never had the same opportunity since MIPS by that time already fell out of favor.
This is a significant step toward a computing eco system. Next building blocks may include ASICs and commercial applications. Do remember that the Intel ISA, a.k.a. x86, is not the best ISA since the beginning of the computing age. Other superior ISAs such as (DEC/Comapq/HPQ) Alpha ISA, HP PA-RISC and Sun SPARC were all defeated in the commercial markets. Those are all lessons learned for a new ISA like LoongISA. Nonetheless, this is a great accomplishment. Not many countries can even try their own ISA. Salute to all who made this happen.
 

ansy1968

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This is a significant step toward a computing eco system. Next building blocks may include ASICs and commercial applications. Do remember that the Intel ISA, a.k.a. x86, is not the best ISA since the beginning of the computing age. Other superior ISAs such as (DEC/Comapq/HPQ) Alpha ISA, HP PA-RISC and Sun SPARC were all defeated in the commercial markets. Those are all lessons learned for a new ISA like LoongISA. Nonetheless, this is a great accomplishment. Not many countries can even try their own ISA. Salute to all who made this happen.
@4Runner Its was always in the background, they always have a domestic alternative available even though its not leading edge. China had committed itself to international trade rules so they need to temper its expectation believing that the US will not destroy the institution that they help created. Now with the sanction China had been given a carte blanche to act and can't be accused of violating WTO rules, some may say its a foolish thing to depend on others but China had benefited greatly from globalization. Now those domestic option will be resurrected , getting funding and resources.
 

sndef888

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Why are the fabs getting built all over the place (wuhan, shanghai, ) instead of concentrating in one place (shenzhen)? I thought xi jinping announced guangdong was going to become a silicon valley or something
 

voyager1

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@4Runner Its was always in the background, they always have a domestic alternative available even though its not leading edge. China had committed itself to international trade rules so they need to temper its expectation believing that the US will not destroy the institution that they help created. Now with the sanction China had been given a carte blanche to act and can't be accused of violating WTO rules, some may say its a foolish thing to depend on others but China had benefited greatly from globalization. Now those domestic option will be resurrected , getting funding and resources.
WTO doesn't fly anymore. The US undermined it. Time for China to decouple from the US technlogically. China can keep buying its agricultural products though, they are useful..
 

Kazuo Ken

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WTO doesn't fly anymore. The US undermined it. Time for China to decouple from the US technlogically. China can keep buying its agricultural products though, they are useful..
If you really want china to start decoupling from US how about china start the move first and not the US. Because what I see right now is that china is waiting for US's move. So start ordering Lenovo, Inspur, Sugon, Huawei, Xiaomi, Chuwei to stop buying Intel CPU or AMD CPU and Nvidia GPU or AMD GPU for their commercial servers and PC/Laptop next year. Start using Kunping CPU or Loongson CPU next year. How many Lenovo Laptop or Huawei Laptop that were using Loongson CPU in China? Also start ordering Xiaomi and BBK to abandon Qualcomm next year and start using CPU made by Unisoc. Will you?
 

voyager1

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If you really want china to start decoupling from US how about china start the move first and not the US. Because what I see right now is that china is waiting for US's move. So start ordering Lenovo, Inspur, Sugon, Huawei, Xiaomi, Chuwei to stop buying Intel CPU or AMD CPU and Nvidia GPU or AMD GPU for their commercial servers and PC/Laptop next year. Start using Kunping CPU or Loongson CPU next year. How many Lenovo Laptop or Huawei Laptop that were using Loongson CPU in China? Also start ordering Xiaomi and BBK to abandon Qualcomm next year and start using CPU made by Unisoc. Will you?
I agree with you. China is pathetic on decoupling. Its companies are in large still worhsipping US tech. They are borderline useless.

However I thinks this is changing now. In case you missed it, in the new 5year plan, "national security" was a top priority and was mentioned everywhere

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"The focus on securities issues in the 14th Five-Year Plan (2021-2025) shows that China has paid 'all-directional' attention to security issues, not just restricted to social security issues like in the past when it is facing multiple threats from the US

However I have my doubts that they will move fast. China is huge ship and it turns ever slowly with private interests and the bureaucratic machine slowing it down. It is changing course, but it will need some time.

The US, on the other hand, is taking concrete steps to decouple while China is fiddling its thumbs
 

horse

Colonel
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If you really want china to start decoupling from US how about china start the move first and not the US. Because what I see right now is that china is waiting for US's move. So start ordering Lenovo, Inspur, Sugon, Huawei, Xiaomi, Chuwei to stop buying Intel CPU or AMD CPU and Nvidia GPU or AMD GPU for their commercial servers and PC/Laptop next year. Start using Kunping CPU or Loongson CPU next year. How many Lenovo Laptop or Huawei Laptop that were using Loongson CPU in China? Also start ordering Xiaomi and BBK to abandon Qualcomm next year and start using CPU made by Unisoc. Will you?
Patience.

Decoupling is a slow process that happens over time, with economic decoupling that is always the case. It will take time to design out all American components.

Huawei has mostly done that in their cell phones and base stations.

Political decoupling can be done at a snap of the fingers.

This is where political decoupling and economic decoupling do not match, they are two different processes.

All it seems like what is happening is China decoupling at its own pace.

For the Americans, the government want a decoupling, corporations do not.
 

Kazuo Ken

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I found it funny that only one supercomputer in China that used ShenWei CPU. I thought more systems would use it in China.
 

Kazuo Ken

New Member
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I agree with you. China is pathetic on decoupling. Its companies are in large still worhsipping US tech. They are borderline useless.

However I thinks this is changing now. In case you missed it, in the new 5year plan, "national security" was a top priority and was mentioned everywhere

Please, Log in or Register to view URLs content!


However I have my doubts that they will move fast. China is huge ship and it turns ever slowly with private interests and the bureaucratic machine slowing it down. It is changing course, but it will need some time.

The US, on the other hand, is taking concrete steps to decouple while China is fiddling its thumbs
You said its time for china to decouple from US technology. It seems to suggest that china should start the decoupling ASAP. Unless you wrote it like this "china should try to decouple from US technology gradually"
 
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