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Chinese team wins gold, three silver medals at Int'l Nuclear Science Olympiad debut_我的网站

A |     8月25日消息，小米创始人雷军今早发文介绍自研芯片玄戒O100，这是一颗1.22TB/s高带宽的AI加速芯片，基于玄戒创新的高带宽矩阵总线，实现远超传统旗舰SoC的端侧AI性能。    

    Four high school students from Beijing, China, who represented China at the third International Nuclear Science Olympiad (INSO) for the first time, pose for a group photo with their medals in Jeddah, Saudi Arabia, on August 8, 2026. Photo: Screenshot from the Xinhua News Agency
China won one gold and three silver medals at the third International Nuclear Science Olympiad (INSO) in Jeddah, Saudi Arabia on Saturday, marking the country's debut at the competition, according to Xinhua News Agency.
The four-member Chinese team ranked among the top participating countries. The eight-day event brought together teams from 19 countries, with theoretical and experimental exams covering nuclear physics, radiation protection and nuclear fuel, among others, reported Xinhua.
Organizing committee representative Talal Alrashidi welcomed China's participation, saying the students delivered an outstanding performance and demonstrated the positive spirit of Chinese youth.
Gold medalist Liu Siqi, a student from Beijing No. 80 High School's Wangjing Campus, said competing with outstanding young people worldwide has "strengthened my determination to study hard and scale new heights in science."
"We will continue to strengthen the popularization of nuclear science and encourage more outstanding young people to learn about, understand and participate in the nuclear field," Wang Peng, head of the Chinese delegation, deputy chief economist of the China Institute of Nuclear Industry Strategy, and president of the China Atomic Energy Press, was quoted by Xinhua as saying.
INSO is currently a leading nuclear science competition for secondary-school students, promoting scientific excellence and international cooperation in the field of nuclear science and technology. INSO is organized with support from the International Atomic Energy Agency, in collaboration with host governments and partner institutions. It is modeled after other international science olympiads, such as the International Physics Olympiad and the International Chemistry Olympiad, but focuses specifically on nuclear science and its peaceful uses, according to the official INSO website.
As the world's first youth Olympiad dedicated to nuclear science, INSO aims to stimulate young people's interest in the field and promote international exchanges, said Xinhua.
Global Times
。    雷军强调，玄戒O100未来将应用于手机、汽车、机器人等全生态品类。          玄戒O100是大模型专用的AI加速芯片，更是全球首款6nm 3D晶圆级堆叠的AI加速芯片。     通过先进的3D堆叠工艺，实现了1.22TB/s的超高带宽，这一速度是目前主流旗舰手机的16倍之多，可以让移动端设备的AI性能实现质的突破。    玄戒O100与玄戒O3是AI终端的“最佳CP”，最高可以实现本地AI推理速度高达330Tokens/s。          小米介绍，在传统计算架构下，计算单元与存储单元物理分离，数据必须在两者之间反复搬运。

B | 但内存数据通路受限于物理引脚数量，遇到了增长瓶颈。

C |     当AI算力以指数级增长时，内存访问速度与算力之间已经严重脱节，成为性能的关键阻碍，业界称之为“内存墙”。

D |          玄戒O100，则是小米“推倒内存墙”的破局之法，区别于以往晶圆→切割为裸片（Die）→逐片封装互联的方式，玄戒O100采用先进的Wafer on Wafer封装技术，也就是将多片完整的晶圆直接高精度对准与键合，继而再切割成独立的3D芯片。    这彻底摆脱了传统引脚数量对带宽的物理限制，将数据通路从“平面走线”变为“垂直穿透”，实现真正的近存计算（Near-Memory Computing）。          玄戒O100采用了先进的Hybrid Bonding混合键合工艺，摒弃了传统微凸点（Micro Bump）结构，直接将物理通路的间隔缩短至1.4μm，让数据通路密度大幅提升。     还采用了Face to Face（简称F2F）金属层直连结构，进一步缩短DRAM与NPU计算层的物理距离，让DRAM与NPU的金属走线“面面相对”，实现更短的物理互联距离，实现更快的信号传输。         此外，玄戒O100配备了14颗高算力NPU，通过玄戒高带宽矩阵总线，让数据可以在NPU与内存、与其他NPU核心之间等高速流转。              

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Published on:08:08:50