News on China's scientific and technological development.

antiterror13

Brigadier
I remember not long ago after Tianhe-2 retained its No.1 position of the Top 500, I saw somebody (don't remember where) brought up Performance per Energy Footprint to claim the advantage of some countries over China, implying that is something will take China a long time to catch up.

Now, TaihuLight is not only the most powerful but is also the most powerful per watt after less than a year since last list. And that is both by a big margin. It must be very hard for some people to digest, like eating a rock???.:D

don't worry some people would still deny it and say in other benchmarks .. Chinese super computers is still lag behind .... trust me .. it would take no time
 

antiterror13

Brigadier
Btw anybody heard what happened to the amended upgrade plans for Tianhe-2? You know the one planned with Phytium Mars CPUs and Matrix DSPs?

I am pretty sure thet are working on it and very very close ... just couldn't make it in this June 2016 ...a pity ... make no mistake, Tianhe-2A or even B will make it in November 2016 ... it may surprise everybody, who knows it may reach 200 Petaflops
 

manqiangrexue

Brigadier
I wish they'd hurry up and ban car exports to China... LOL

Yeah, the only criticism I've heard this time was how TaihuLight uses way more chips than US supercomputers so it's worse per chip? LOL Whatever, and then they say China's reign is short-lived because in the next 2 years, US is scheduled to debut 2 supercomputers in the 150-180 petaflop range. Well, that's pretty funny to me because if remember properly, after every Chinese win, they say, "This one's short-lived; US is working on computers 10 times faster!" And then China takes the next title too... and then they say the same thing again LOL
 
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antiterror13

Brigadier
At the moment Intel (US), Samsung (SK) and TMSC (Taiwan) are leading in semiconductorl foundry ... all of those three have managed to produce 300mm (even 450mm) wafer and also managed to shrink to 14/16 nm node .

The best Chinese Fab only managed to get to 28nm at the moment (SMIC) and 300mm wafer. But all AMD and Nvidia GPU are manufactured using 28nm node (except Pascal, the newest from Nvidia) ... so not too bad then :p

I believe the US still ban exports of the advanced chip-making equipment to the People’s Republic, not too sure whether the US leading in that technology ... anyone?
 
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AndrewS

Brigadier
Registered Member
Just a few points

It doesn't matter how many cores are used. What matters is the cost versus performance.

If I were in China, I wouldn't worry too much about the semiconductor fabrication gap. Shrinking the size of semiconductors used to produce significant cost and performance gains for every type of chip, but the latest 14/16nm technology works out more expensive in many cases as we're reaching the limits of silicon technology.

So what we now see is an investment binge in terms of semiconductor fab plants in China, as the technology is maturing and becoming commoditised.
 
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antiterror13

Brigadier
and I am sure you notice that ShenWei 26010 has 260 cores, in fact TaihuLight contains 40,960 ShenWei 26010s, one for each node that also contains 32GB of RAM, adding up to a total of over 10 million cores. So not too many physical CPUs, just each CPU has many many cores ... I saw the photo of the chip , and I counted the number of pins, it is solid roughly 90 x 90, no space in the centre (unlike Intel CPU) ... so roughly 8,000 pins!!!!

See photo no. 3 of this page --- CPU used in TaihuLight ... roughly 90 x 90 pins ... massive!
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