v**e
发帖数: 8422 | 1 NYT:China Supercomputer Based on Its Own Chips
送交者: ufo 2011年10月28日
In Surprise, China Unveils Supercomputer Based on Its Own Chips
By JOHN MARKOFF
Published: October 28, 2011
China has made its first supercomputer based on Chinese microprocessor chips
, an advance that surprised high-performance computing specialists in the
United States.
The announcement was made this week at a technical meeting held in Jinan,
China, organized by industry and government organizations. The new machine,
the Sunway BlueLight MPP, was installed in September at the National
Supercomputer Center in Jinan, the capital of Shandong Province in eastern
China.
The Sunway system, which can perform about 1,000 trillion calculations per
second — a petaflop — will probably rank among the 20 fastest computers in
the world. More significantly, it is composed of 8,700 ShenWei SW1600
microprocessors, designed at a Chinese computer institute and manufactured
in Shanghai.
Currently, the Chinese are about three generations behind the state-of-art
chip making technologies used by world leaders such as the United States,
South Korea, Japan and Taiwan.
“This is a bit of a surprise,” said Jack Dongarra, a computer scientist at
the University of Tennessee and a leader of the Top500 project, a list of
the world’s fastest computers.
Last fall, another Chinese based supercomputer, the Tianhe-1A, created an
international sensation when it was briefly ranked as the world’s fastest,
before it was displaced in the spring by a rival Japanese machine, the K
Computer, designed by Fujitsu.
But the Tianhe was built from processor chips made by American companies,
Intel and Nvidia, though its internal switching system was designed by
Chinese computer engineers. Similarly, the K computer was based on Sparc
chips, designed at Sun Microsystems in Silicon Valley.
Dr. Dongarra said the Sunway’s theoretical peak performance was about 74
percent as fast as the fastest United States computer — the Jaguar
supercomputer at the Department of Energy facility at Oak Ridge National
Laboratory, made by Cray Inc. That machine is currently the third fastest on
the list.
The Energy Department is planning three supercomputers that would run at 10
to 20 petaflops. And the United States is embarking on an effort to reach an
exaflop, or one million trillion mathematical operations in a second,
sometime before the end of the decade, though most computer scientists say
the necessary technologies do not yet exist.
To build such a computer from existing components would require immense
amounts of electricity — roughly the amount produced by a medium-sized
nuclear power plant.
In contrast, Dr. Dongarra said it was intriguing that the power requirements
of the new Chinese supercomputer were relatively modest — about one
megawatt, according to reports from the technical conference. The Tianhe
supercomputer consumes about four megawatts and the Jaguar about seven.
The ShenWei microprocessor appears to be based on some of the same design
principles that are favored by Intel’s most advanced microprocessors,
according to several supercomputer experts in the United States.
But there is disagreement over whether the machine’s cooling technology is
appropriate for designs that will be required by the exaflop-class
supercomputers of the future.
Photos of the new Sunway supercomputer reveal an elaborate water-cooling
system that may be a significant advance in the design of the very fastest
machines.
“Getting this cooling technology correct is very, very difficult,” said
Steven Wallach, chief scientist at Convey Computer, a supercomputer firm
based in Richardson, Tex. “This tells me that this is a serious design.
This cooling technology could scale to exaflop. They are in the hunt to win.
” | O*******d
发帖数: 20343 | | z*****u
发帖数: 138 | | G*****h
发帖数: 33134 | 4 "省委"是个啥片子？
【在 z*****u 的大作中提到】
: re
| d*****l
发帖数: 8441 | 5 上海芯片：申威。
【在 G*****h 的大作中提到】
: "省委"是个啥片子？
| l*****i
发帖数: 20533 | 6 不错不错。摆脱对西方的依赖十分关键啊。
看来哪一项被西方限制哪一项就能取得重大发展。 | e**s
发帖数: 4638 | 7 应该逐步建立对 intel/amd/ibm 的空仓部位 ～～～～～～～～～lol | m****n
发帖数: 2754 | 8 The Sunway system, which can perform about 1,000 trillion calculations per
second
浮点运算吗？ | h*******u
发帖数: 15326 | 9 绝对正确
【在 l*****i 的大作中提到】
: 不错不错。摆脱对西方的依赖十分关键啊。
: 看来哪一项被西方限制哪一项就能取得重大发展。
| a***e
发帖数: 27968 | 10 这事很不靠谱啊
1peta=1E15
按8192有效计算片子
每个片子要完成122GFLOP
65nm典型速度1GHZ
所以每周期得是120+运算
算8核，每核近16个浮点运算每周期
16条64位浮点流水太夸张了
这帮人估计又是拿着一次256位的矢量运算器当16次64位的算了
类似年初的龙芯3B 128GFLOPs
从数据看，这鬼东西不会是3B的马甲吧？
这样的话，常规应用可能只有20%的效率
这帮人的peta是linpack之类的benchmark出来的？
chips
,
【在 v**e 的大作中提到】
: NYT:China Supercomputer Based on Its Own Chips
: 送交者: ufo 2011年10月28日
: In Surprise, China Unveils Supercomputer Based on Its Own Chips
: By JOHN MARKOFF
: Published: October 28, 2011
: China has made its first supercomputer based on Chinese microprocessor chips
: , an advance that surprised high-performance computing specialists in the
: United States.
: The announcement was made this week at a technical meeting held in Jinan,
: China, organized by industry and government organizations. The new machine,
| | | c***n
发帖数: 2232 | 11 人家是16核的好不好。
【在 a***e 的大作中提到】
: 这事很不靠谱啊
: 1peta=1E15
: 按8192有效计算片子
: 每个片子要完成122GFLOP
: 65nm典型速度1GHZ
: 所以每周期得是120+运算
: 算8核，每核近16个浮点运算每周期
: 16条64位浮点流水太夸张了
: 这帮人估计又是拿着一次256位的矢量运算器当16次64位的算了
: 类似年初的龙芯3B 128GFLOPs
| d*****y
发帖数: 205 | 12 芯片应该是在无锡设计的。
chips
,
【在 v**e 的大作中提到】
: NYT:China Supercomputer Based on Its Own Chips
: 送交者: ufo 2011年10月28日
: In Surprise, China Unveils Supercomputer Based on Its Own Chips
: By JOHN MARKOFF
: Published: October 28, 2011
: China has made its first supercomputer based on Chinese microprocessor chips
: , an advance that surprised high-performance computing specialists in the
: United States.
: The announcement was made this week at a technical meeting held in Jinan,
: China, organized by industry and government organizations. The new machine,
| h******1
发帖数: 126 | 13 和龙芯不是一个东西。
【在 a***e 的大作中提到】
: 这事很不靠谱啊
: 1peta=1E15
: 按8192有效计算片子
: 每个片子要完成122GFLOP
: 65nm典型速度1GHZ
: 所以每周期得是120+运算
: 算8核，每核近16个浮点运算每周期
: 16条64位浮点流水太夸张了
: 这帮人估计又是拿着一次256位的矢量运算器当16次64位的算了
: 类似年初的龙芯3B 128GFLOPs
| h********n
发帖数: 1671 | 14 国防大学正在做的项目：某超大规模CPU的物理设计。16核，1.5GHZ，40nm工艺。
居然是一年级的硕士生在做。
看来过些日子可以听到银河的消息了。 | s********7
发帖数: 4681 | | h*********n
发帖数: 11319 | 16
the
,
machine
【在 a***e 的大作中提到】
: 这事很不靠谱啊
: 1peta=1E15
: 按8192有效计算片子
: 每个片子要完成122GFLOP
: 65nm典型速度1GHZ
: 所以每周期得是120+运算
: 算8核，每核近16个浮点运算每周期
: 16条64位浮点流水太夸张了
: 这帮人估计又是拿着一次256位的矢量运算器当16次64位的算了
: 类似年初的龙芯3B 128GFLOPs
| z****m
发帖数: 715 | 17 中国不是只有龙芯一个团队再做CPU的，只不过龙芯是最花力气博出位的而已。
【在 a***e 的大作中提到】
: 这事很不靠谱啊
: 1peta=1E15
: 按8192有效计算片子
: 每个片子要完成122GFLOP
: 65nm典型速度1GHZ
: 所以每周期得是120+运算
: 算8核，每核近16个浮点运算每周期
: 16条64位浮点流水太夸张了
: 这帮人估计又是拿着一次256位的矢量运算器当16次64位的算了
: 类似年初的龙芯3B 128GFLOPs
| h*********n
发帖数: 11319 | 18 龙芯可没有搏出位。只是人家民用项目，没有后台，当然要做点新闻发布的工作
搏出位的是脑残妓者，每次都要胡乱塞进一点吸引眼球的文字
神威项目一年的经费是计算所的20倍，你们外人知不知道他的存在他根本不care
【在 z****m 的大作中提到】
: 中国不是只有龙芯一个团队再做CPU的，只不过龙芯是最花力气博出位的而已。
| a***e
发帖数: 27968 | 19 果然是大作业，吼吼
【在 h********n 的大作中提到】
: 国防大学正在做的项目：某超大规模CPU的物理设计。16核，1.5GHZ，40nm工艺。
: 居然是一年级的硕士生在做。
: 看来过些日子可以听到银河的消息了。
| a***e
发帖数: 27968 | 20 8 FPU流水也很夸张啊
俺拿i7-2500跑一下linpack,86Gflops
每核22GFLOPS,这个可是3.2GHZ
【在 c***n 的大作中提到】
: 人家是16核的好不好。
| a***e
发帖数: 27968 | 21 看layout没什么cache,这可挺神奇
1024M的C2D的E***[email protected]跑不过P*[email protected]
64M的就出超了
【在 h*********n 的大作中提到】
: 龙芯可没有搏出位。只是人家民用项目，没有后台，当然要做点新闻发布的工作
: 搏出位的是脑残妓者，每次都要胡乱塞进一点吸引眼球的文字
: 神威项目一年的经费是计算所的20倍，你们外人知不知道他的存在他根本不care
|
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