Characterizing Three Supercomputers: Multi-GPU Interconnect Performance


A new technical paper titled "Exploring GPU-to-GPU Communication: Insights into Supercomputer Interconnects" was published by researchers at Sapienza University of Rome, University of Trento, Vrije Universiteit Amsterdam, ETH Zurich, CINECA, University of Antwerp, IBM Research Europe, HPE Cray, and NVIDIA. Abstract "Multi-GPU nodes are increasingly common in the rapidly evolving landscape... » read more

The 40-Million-Core Sunway Supercomputer: 5 ExaFlop/s HPL-MxP Benchmark With Linear Scalability


A technical paper titled “5 ExaFlop/s HPL-MxP Benchmark with Linear Scalability on the 40-Million-Core Sunway Supercomputer” was published by researchers at the National Research Center of Parallel Computer Engineering and Technology and Tsinghua University. Abstract: "HPL-MxP is an emerging high performance benchmark used to measure the mixed-precision computing capability of leading sup... » read more

Top500: Frontier Still On Top, Sunway Formally Reappears


New versions of the Top500 and Green500 lists have been released, and Frontier continues its reign at Number. 1. But a newcomer, Aurora, using Intel’s Sapphire Rapids, has entered at the Number 2 position with a “half-scale” system. Both machines are HPE Crays, with the former using AMD optimized third-gen EPYC 64C at 2.0GHz and AMD Instinct MI250X, while the latter uses Intel Xeon CPU... » read more

Supercomputing Efficiency Lags Performance Gains


In last month’s article, Top 500: Frontier is Still on Top, I wrote about the latest versions of the Top500 and Green500 lists. Power is an incredibly important aspect of designing a world performance leading supercomputer. (Why, I can remember back to when you could run the world’s fastest machine on only a couple MW of power.) The first Green500 list was published back in 2013. Happy 1... » read more

Top500: Frontier Is Still On Top


The latest versions of the Top500 and Green500 lists were just released on May 22, 2023. The last time that I wrote about the Green500, a Chinese machine, NRCPC’s Sunway TaihuLight, was sitting at the top of the Top500 list. It’s been a while since I last wrote about these lists and it’s interesting to look back at the leap in performance and energy efficiency over the past 7 years. ... » read more

A New Era For HPC-Driven Engineering Simulation


Market pressure and technological advancements have rapidly changed the way engineers work. Design engineers increasingly work with larger and more complex models, must conduct more frequent simulation analysis, and iterate more rapidly. Compute constraints, however, often result in engineers limiting model sizes and simulation fidelity, or relying on lengthy, overnight simulation runs. ... » read more

Considerations for Neuromorphic Supercomputing in Semiconducting and Superconducting Optoelectronic Hardware


Abstract: "Any large-scale spiking neuromorphic system striving for complexity at the level of the human brain and beyond will need to be co-optimized for communication and computation. Such reasoning leads to the proposal for optoelectronic neuromorphic platforms that leverage the complementary properties of optics and electronics. Starting from the conjecture that future large-scale neurom... » read more

Week In Review: Design, Low Power


Synopsys acquired Light Tec, a provider of optical scattering measurements and measurement equipment. The company also provides optical engineering consulting services plus training for use of Synopsys' lighting simulation software. "Light Tec's proven optical measurement capabilities provide our customers with robust new tools for high-accuracy optical product simulations and visualizations," ... » read more

Supercomputing Performance & Efficiency: An Exploration Of Recent History & Near-Term Projections


Source: Koomey Analytics, in collaboration with AMD Jonathan Koomey*, Zachary Schmidt*, and Samuel Naffziger† * Koomey Analytics; †Advanced Micro Devices, Inc. A new paper analyzes data from the industry site Top 500  to evaluate  the efficiency of supercomputers over the past decade. It also compares how the efficiency and performance of a recently announced supercomputer, schedul... » read more

Supercomputers Are For Everyone


Our SerDes world tour continues. This past month, we demonstrated our 7nm 56G long-reach SerDes in Dallas and Israel. In Dallas, our demonstration included error-free operation in 56G PAM4 over a 30dB channel without forward error correction through an eye-popping five-meter cable. Many thanks to our partner Samtec for providing that cable, allowing backplane designers to now “reach beyond th... » read more

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