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takyon writes:

TOP500 Expands Exaflops Capacity Amidst Low Turnover

The entry level to the list moved up to 1.32 petaflops on the High Performance Linpack (HPL) benchmark, a small increase from 1.23 petaflops recorded in the June 2020 rankings. In a similar vein, the aggregate performance of all 500 systems grew from 2.22 exaflops in June to just 2.43 exaflops on the latest list. Likewise, average concurrency per system barely increased at all, growing from 145,363 cores six months ago to 145,465 cores in the current list.

There were, however, a few notable developments in the top 10, including two new systems, as well as a new highwater mark set by the top-ranked Fugaku supercomputer. Thanks to additional hardware, Fugaku grew its HPL performance to 442 petaflops, a modest increase from the 416 petaflops the system achieved when it debuted in June 2020. More significantly, Fugaku increased its performance on the new mixed precision HPC-AI benchmark to 2.0 exaflops, besting its 1.4 exaflops mark recorded six months ago. These represents the first benchmark measurements above one exaflop for any precision on any type of hardware.

[...] At number five is Selene, an NVIDIA DGX A100 SuperPOD installed in-house at NVIDIA Corp. It was listed as number seven in June but has doubled in size, allowing it to move up the list by two positions. The system is based on AMD EPYC processors with NVIDIA's new A100 GPUs for acceleration. Selene achieved 63.4 petaflops on HPL as a result of the upgrade.

[...] A new supercomputer, known as the JUWELS Booster Module, debuts at number seven on the list. The Atos-built BullSequana machine was recently installed at the Forschungszentrum Jülich (FZJ) in Germany. It is part of a modular system architecture and a second Xeon based JUWELS Module is listed separately on the TOP500 at position 44. These modules are integrated by using the ParTec Modulo Cluster Software Suite. The Booster Module uses AMD EPYC processors with NVIDIA A100 GPUs for acceleration similar to the number five Selene system. Running by itself the JUWELS Booster Module was able to achieve 44.1 HPL petaflops, which makes it the most powerful system in Europe.

[...] The second new system at the top of the list is Dammam-7, which is ranked 10th. It is installed at Saudi Aramco in Saudi Arabia and is the second commercial supercomputer in the current top 10. The HPE Cray CS-Storm systems uses Intel Gold Xeon CPUs and NVIDIA Tesla V100 GPUs. It reached 22.4 petaflops on the HPL benchmark.

The Green500 list is led by a smaller NVIDIA DGX SuperPOD system at 26.2 gigaflops/Watt (ranked #171 on the TOP500).

#1 system: 415.5 petaflops R_max (June 2020), 442 petaflops (November 2020)
#10 system: 21.2 petaflops (June), 22.4 petaflops (Nov)
#100 system: 2.8 petaflops (June), 3.15 petaflops (Nov)
#500 system: 1.23 petaflops (June), 1.32 petaflops (Nov)

Previously: Fujitsu's ARM-based Fugaku Supercomputer Leads June 2020 TOP500 List at 415 PetaFLOPs

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