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TOP500
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The TOP500 project ranks and details the 500 most powerful non-distributed computer systems in the world. The project was started in 1993 and publishes an updated list of the supercomputers twice a year. The first of these updates always coincides with the International Supercomputing Conference in June, and the second is presented at the ACM/IEEE Supercomputing Conference in November. The project aims to provide a reliable basis for tracking and detecting trends in high-performance computing and bases rankings on HPL benchmarks,[1] a portable implementation of the high-performance LINPACK benchmark written in Fortran for distributed-memory computers.

Key Information

The most recent edition of TOP500 was published in June 2025 as the 65th edition of TOP500, while the next edition of TOP500 will be published in November 2025 as the 66th edition of TOP500. As of June 2025, the United States' El Capitan is the most powerful supercomputer in the TOP500, reaching 1742 petaFlops (1.742 exaFlops) on the LINPACK benchmarks.[2] As of submitted data until June 2025, the United States has the highest number of systems with 175 supercomputers; China is in second place with 47, and Germany is third at 41; the United States has by far the highest share of total computing power on the list (48.4%).[3] Due to secrecy of the latest Chinese programs, publicly known supercomputer performance share in China represents only 2% that of global as of June 2025.[3][4][5]

The TOP500 list is compiled by Jack Dongarra of the University of Tennessee, Knoxville, Erich Strohmaier and Horst Simon of the National Energy Research Scientific Computing Center (NERSC) and Lawrence Berkeley National Laboratory (LBNL), and, until his death in 2014, Hans Meuer of the University of Mannheim, Germany.[citation needed] The TOP500 project also includes lists such as Green500 (measuring energy efficiency) and HPCG (measuring I/O bandwidth).[6]

History

[edit]
Rapid growth of supercomputer performance, based on data from the top500.org website. The loga­rithmic y-axis shows performance in GFLOPS.
  Combined performance of 500 largest supercomputers
  Fastest supercomputer
  Supercomputer in 500th place

In the early 1990s, a new definition of supercomputer was needed to produce meaningful statistics. After experimenting with metrics based on processor count in 1992, the idea arose at the University of Mannheim to use a detailed listing of installed systems as the basis. In early 1993, Jack Dongarra was persuaded to join the project with his LINPACK benchmarks. A first test version was produced in May 1993, partly based on data available on the Internet, including the following sources:[7][8]

  • "List of the World's Most Powerful Computing Sites" maintained by Gunter Ahrendt[9]
  • David Kahaner, the director of the Asian Technology Information Program (ATIP);[10] published a report in 1992, titled "Kahaner Report on Supercomputer in Japan"[8] which had an immense amount of data.[citation needed]

The information from those sources was used for the first two lists. Since June 1993, the TOP500 is produced bi-annually based on site and vendor submissions only. Since 1993, performance of the No. 1 ranked position has grown steadily in accordance with Moore's law, doubling roughly every 14 months. In June 2018, Summit was fastest with an Rpeak[11] of 187.6593 PFLOPS. For comparison, this is over 1,432,513 times faster than the Connection Machine CM-5/1024 (1,024 cores), which was the fastest system in November 1993 (twenty-five years prior) with an Rpeak of 131.0 GFLOPS.[12]

Architecture and operating systems

[edit]
Share of processor families in TOP500 supercomputers by year[needs update]

While Intel, or at least the x86-64 CPU architecture has previously dominated the supercomputer list, by now AMD has more systems using that same architecture on top10, including 1st and 2nd place. And Microsoft Azure has 8 systems on top100, thereof only two with Intel CPUs, including though its most performant by far in 4th place (previously 3rd place). AMDs CPUs are usually coupled with AMD's GPU accelerators, while Intel's CPUs have historically been very often coupled with NVidia's GPU, though current Intel's third place (previously 2nd place) system notably uses Intel Data Center GPU Max. Arm-based system are also notable on the list in 4th, 7th (Fugaku, previously nr. 1) and 8th place and in total at least 23 not just from Fujitsu that introduced Arm-based the top spot; Nvidia has others with their "Superchip" CPU, not just GPUs.

As of June 2022, all supercomputers on TOP500 are 64-bit supercomputers, mostly based on CPUs with the x86-64 instruction set architecture, 384 of which are Intel EMT64-based and 101 of which are AMD AMD64-based, with the latter including the top eight supercomputers. 15 other supercomputers are all based on RISC architectures, including six based on ARM64 and seven based on the Power ISA used by IBM Power microprocessors.[citation needed]

In recent years, heterogeneous computing has dominated the TOP500, mostly using Nvidia's graphics processing units (GPUs) or Intel's x86-based Xeon Phi as coprocessors. This is because of better performance per watt ratios and higher absolute performance. AMD GPUs have taken the top 1 and displaced Nvidia in top 10 part of the list. The recent exceptions include the aforementioned Fugaku, Sunway TaihuLight, and K computer. Tianhe-2A is also an interesting exception, as US sanctions prevented use of Xeon Phi; instead, it was upgraded to use the Chinese-designed Matrix-2000[13] accelerators.[citation needed]

Two computers which first appeared on the list in 2018 were based on architectures new to the TOP500. One was a new x86-64 microarchitecture from Chinese manufacturer Sugon, using Hygon Dhyana CPUs (these resulted from a collaboration with AMD, and are a minor variant of Zen-based AMD EPYC) and was ranked 38th, now 117th,[14] and the other was the first ARM-based computer on the list – using Cavium ThunderX2 CPUs.[15] Before the ascendancy of 32-bit x86 and later 64-bit x86-64 in the early 2000s, a variety of RISC processor families made up most TOP500 supercomputers, including SPARC, MIPS, PA-RISC, and Alpha.

Share of operating systems families in TOP500 supercomputers by time trend

All the fastest supercomputers since the Earth Simulator supercomputer (gained top spot in 2002, kept it for 2 and a half years until June 2004, was decommissioned in 2009; though other non-Linux on the list for longer) have used operating systems based on Linux. Since November 2017, all the listed supercomputers use an operating system based on the Linux kernel.[16][17]

Since November 2015, no computer on the list runs Windows (while Microsoft reappeared on the list in 2021 with Ubuntu based on Linux). In November 2014, Windows Azure[18] cloud computer was no longer on the list of fastest supercomputers (its best rank was 165th in 2012), leaving the Shanghai Supercomputer Center's Magic Cube as the only Windows-based supercomputer on the list, until it also dropped off the list. It was ranked 436th in its last appearance on the list released in June 2015, while its best rank was 11th in 2008.[19] There are no longer any Mac OS computers on the list. It had at most five such systems at a time, one more than the Windows systems that came later, while the total performance share for Windows was higher. Their relative performance share of the whole list was however similar, and never high for either. In 2004, the System X supercomputer based on Mac OS X (Xserve, with 2,200 PowerPC 970 processors) once ranked 7th place.[20]

It has been well over a decade since MIPS systems dropped entirely off the list[21] though the Gyoukou supercomputer that jumped to 4th place[22] in November 2017 had a MIPS-based design as a small part of the coprocessors. Use of 2,048-core coprocessors (plus 8× 6-core MIPS, for each, that "no longer require to rely on an external Intel Xeon E5 host processor"[23]) made the supercomputer much more energy efficient than the other top 10 (i.e. it was 5th on Green500 and other such ZettaScaler-2.2-based systems take first three spots).[24] At 19.86 million cores, it was by far the largest system by core-count, with almost double that of the then-best manycore system, the Chinese Sunway TaihuLight.

TOP500

[edit]

As of June 2025, the number one supercomputer is El Capitan, the leader on Green500 is JEDI, a Bull Sequana XH3000 system using the Nvidia Grace Hopper GH200 Superchip. In June 2022, the top 4 systems of Graph500 used both AMD CPUs and AMD accelerators. After an upgrade, for the 56th TOP500 in November 2020,

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, the ARMv8.2 based 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 represent the first benchmark measurements above one exaflop for any precision on any type of hardware.[25]

Summit, a previously fastest supercomputer, is currently highest-ranked IBM-made supercomputer; with IBM POWER9 CPUs. Sequoia became the last IBM Blue Gene/Q model to drop completely off the list; it had been ranked 10th on the 52nd list (and 1st on the June 2012, 41st list, after an upgrade).

For the first time, all 500 systems deliver a petaflop or more on the High Performance Linpack (HPL) benchmark, with the entry level to the list now at 1.022 petaflops." However, for a different benchmark "Summit and Sierra remain the only two systems to exceed a petaflop on the HPCG benchmark, delivering 2.9 petaflops and 1.8 petaflops, respectively. The average HPCG result on the current list is 213.3 teraflops, a marginal increase from 211.2 six months ago.[26]

Microsoft is back on the TOP500 list with six Microsoft Azure instances (that use/are benchmarked with Ubuntu, so all the supercomputers are still Linux-based), with CPUs and GPUs from same vendors, the fastest one currently 11th,[27] and another older/slower previously made 10th.[28] And Amazon with one AWS instance currently ranked 64th (it was previously ranked 40th). The number of Arm-based supercomputers is 6; currently all Arm-based supercomputers use the same Fujitsu CPU as in the number 2 system, with the next one previously ranked 13th, now 25th.[29]

Top 10 positions of the 65th TOP500 in June 2025[30]
Rank (previous) Rmax
Rpeak
(PetaFLOPS)
Name Model CPU cores Accelerator (e.g. GPU) cores Total cores (CPUs + accelerators) Interconnect Manufacturer Site
country
Year Operating
system
1 1,742.00
2,746.38
El Capitan HPE Cray EX255a 1,051,392
(43,808 × 24-core Optimized 4th Generation EPYC 24C @1.8 GHz)
9,988,224
(43,808 × 228 AMD Instinct MI300A)
11,039,616 Slingshot-11 HPE Lawrence Livermore National Laboratory
 United States
2024 Linux (TOSS)
2 1,353.00
2,055.72
Frontier HPE Cray EX235a 614,656
(9,604 × 64-core Optimized 3rd Generation EPYC 64C @2.0 GHz)
8,451,520
(38,416 × 220 AMD Instinct MI250X)
9,066,176 Slingshot-11 HPE Oak Ridge National Laboratory
 United States
2022 Linux (HPE Cray OS)
3 1,012.00
1,980.01
Aurora HPE Cray EX 1,104,896
(21,248 × 52-core Intel Xeon Max 9470 @2.4 GHz)
8,159,232
(63,744 × 128 Intel Max 1550)
9,264,128 Slingshot-11 HPE Argonne National Laboratory
 United States
2023 Linux (SUSE Linux Enterprise Server 15 SP4)
4 New entry 793.40
930.00
JUPITER BullSequana XH3000 1,694,592
(23,536 × 72-Arm Neoverse V2 cores Nvidia Grace @3 GHz)
3,106,752
(23,536 × 132 Nvidia Hopper H100)
4,801,344 Quad-rail NVIDIA NDR200 Infiniband Atos EuroHPC JU
 European Union, Jülich,  Germany
2025 Linux (RHEL)
5 Decrease 561.20
846.84
Eagle Microsoft NDv5 172,800
(3,600 × 48-core Intel Xeon Platinum 8480C @2.0 GHz)
1,900,800
(14,400 × 132 Nvidia Hopper H100)
2,073,600 NVIDIA Infiniband NDR Microsoft Microsoft
 United States
2023 Linux (Ubuntu 22.04 LTS)
6 Decrease 477.90
606.97
HPC6 HPE Cray EX235a 213,120
(3,330 × 64-core Optimized 3rd Generation EPYC 64C @2.0 GHz)
2,930,400
(13,320 × 220 AMD Instinct MI250X)
3,143,520 Slingshot-11 HPE Eni S.p.A
 European Union, Ferrera Erbognone,  Italy
2024 Linux (RHEL 8.9)
7 Decrease 442.01
537.21
Fugaku Supercomputer Fugaku 7,630,848
(158,976 × 48-core Fujitsu A64FX @2.2 GHz)
- 7,630,848 Tofu interconnect D Fujitsu Riken Center for Computational Science
 Japan
2020 Linux (RHEL)
8 Decrease 434.90
574.84
Alps HPE Cray EX254n 748,800
(10,400 × 72-Arm Neoverse V2 cores Nvidia Grace @3.1 GHz)
1,372,800
(10,400 × 132 Nvidia Hopper H100)
2,121,600 Slingshot-11 HPE CSCS Swiss National Supercomputing Centre
 Switzerland
2024 Linux (HPE Cray OS)
9 Decrease 379.70
531.51
LUMI HPE Cray EX235a 186,624
(2,916 × 64-core Optimized 3rd Generation EPYC 64C @2.0 GHz)
2,566,080
(11,664 × 220 AMD Instinct MI250X)
2,752,704 Slingshot-11 HPE EuroHPC JU
 European Union, Kajaani,  Finland
2022 Linux (HPE Cray OS)
10 Decrease 241.20
306.31
Leonardo BullSequana XH2000 110,592
(3,456 × 32-core Xeon Platinum 8358 @2.6 GHz)
1,714,176
(15,872 × 108 Nvidia Ampere A100)
1,824,768 Quad-rail NVIDIA HDR100 Infiniband Atos EuroHPC JU
 European Union, Bologna,  Italy
2023 Linux (RHEL 8)[31]

Legend:[32]

  • Rank – Position within the TOP500 ranking. In the TOP500 list table, the computers are ordered first by their Rmax value. In the case of equal performances (Rmax value) for different computers, the order is by Rpeak. For sites that have the same computer, the order is by memory size and then alphabetically.
  • Rmax – The highest score measured using the LINPACK benchmarks suite. This is the number that is used to rank the computers. Measured in quadrillions of 64-bit floating point operations per second, i.e., petaFLOPS.[33]
  • Rpeak – This is the theoretical peak performance of the system. Computed in petaFLOPS.
  • Name – Some supercomputers are unique, at least on its location, and are thus named by their owner.
  • Model – The computing platform as it is marketed.
  • Processor – The instruction set architecture or processor microarchitecture, alongside GPU and accelerators when available.
  • Interconnect – The interconnect between computing nodes. InfiniBand is most used (38%) by performance share, while Gigabit Ethernet is most used (54%) by number of computers.
  • Manufacturer – The manufacturer of the platform and hardware.
  • Site – The name of the facility operating the supercomputer.
  • Country – The country in which the computer is located.
  • Year – The year of installation or last major update.
  • Operating system – The operating system that the computer uses.

Top countries

[edit]

Numbers below represent the number of computers in the TOP500 that are in each of the listed countries or territories. As of 2025, United States has the most supercomputers on the list, with 174 machines. The United States has the highest aggregate computational power at 6,696 Petaflops Rmax with Japan second (1,229 Pflop/s) and Germany third (1,201 Pflop/s).

Distribution of supercomputers in the TOP500 list by country (as of June 2025)[3]
Country or territory Number of systems
United States 175
European Union 137
China 47
Germany 41
Japan 39
France 25
Italy 17
South Korea 15
Canada 13
United Kingdom 13
Brazil 9
Norway 9
Sweden 9
Taiwan 8
Poland 7
Netherlands 7
Russia 6
Saudi Arabia 6
India 6
Singapore 5
Australia 4
United Arab Emirates 4
 Switzerland 4
Czechia 3
Spain 3
Finland 3
Thailand 2
Ireland 2
Slovenia 2
Turkey 2
Bulgaria 2
Austria 2
Israel 1
Denmark 1
Iceland 1
Morocco 1
Luxembourg 1
Belgium 1
Portugal 1
Argentina 1
Hungary 1
Vietnam 1

Other rankings

[edit]
Distribution of supercomputers in the TOP500 list by country and by year
Country
/
Region
Jun 2025[3]
Nov 2024[3]
Jun 2024[3]
Nov 2023[3]
Jun 2023[3]
Nov 2022[3]
Jun 2022[3]
Nov 2021[3]
Jun 2021[3]
Nov 2020[3]
Jun 2020[3]
Nov 2019[3]
Jun 2019[3]
Nov 2018[3]
Jun 2018[3]
Nov 2017[3]
Jun 2017[3]
Nov 2016[3]
Jun 2016[3]
Nov 2015[3]
Jun 2015[3]
Nov 2014[3]
Jun 2014[3]
Nov 2013[3]
Jun 2013[3]
Nov 2012[3]
Jun 2012[3]
Nov 2011[3]
Jun 2011[3]
Nov 2010[3]
Jun 2010[3]
Nov 2009[3]
Jun 2009[3]
Nov 2008[3]
Jun 2008[3]
Nov 2007[3]
Jun 2007[3]
Nov 2006[3]
United States 175 173 171 161 150 127 128 149 122 113 114 117 116 109 124 143 168 171 165 199 233 231 232 264 252 251 252 263 255 274 282 277 291 290 257 283 281 309
EU 128 129 123 112 103 101 92 83 93 79 79 87 92 91 93 86 99 95 93 94 122 110 103 89 97 89 96 95 109 108 126 137 134 140 169 133 115 82
China 47 63 80 104 134 162 173 173 188 214 226 228 220 227 206 202 160 171 168 109 37 61 76 63 66 72 68 74 61 41 24 21 21 15 12 10 13 18
Germany 41 40 40 36 36 34 31 26 23 17 16 16 13 17 21 21 28 31 26 33 37 26 22 20 19 19 20 20 30 26 24 27 29 25 46 31 24 18
Japan 39 34 29 32 33 31 33 32 34 34 29 29 28 31 36 35 33 27 29 37 40 32 30 28 30 32 35 30 26 26 18 16 15 17 22 20 23 30
France 25 24 24 23 24 24 22 19 16 18 19 18 20 18 18 18 18 20 18 18 27 30 27 22 23 21 22 23 25 26 27 26 23 26 34 17 13 12
Italy 17 14 11 12 7 7 6 6 6 6 7 5 5 6 5 6 8 6 5 4 4 3 5 5 6 7 8 4 5 6 7 6 6 11 6 6 5 8
South Korea 15 13 13 12 8 8 6 7 5 3 3 3 5 6 7 5 8 4 7 10 9 9 8 5 4 4 3 3 4 3 1 2 0 1 1 1 5 6
United Kingdom 13 14 16 15 14 15 12 11 11 12 10 11 18 20 22 15 17 13 11 18 29 30 30 23 29 24 25 27 27 25 38 45 44 46 53 48 42 30
Canada 13 9 10 10 10 10 14 11 11 12 12 9 8 9 6 5 6 1 1 6 6 6 9 10 9 11 10 9 8 6 7 9 8 2 2 5 10 8
Brazil 9 9 8 9 9 8 6 5 6 4 4 3 3 1 1 0 2 3 4 6 6 4 4 3 3 2 3 2 2 2 1 1 0 2 1 1 2 4
Sweden 9 8 7 6 6 6 5 4 3 2 2 2 2 4 3 5 5 4 5 3 5 5 3 5 7 6 4 3 5 6 8 7 10 8 9 7 10 1
Norway 9 6 5 5 4 3 2 1 3 3 3 2 0 1 1 1 1 1 1 1 2 3 3 3 3 3 3 0 1 3 2 2 2 2 2 3 2 3
Taiwan 8 7 6 5 2 2 2 2 2 3 2 2 2 2 1 1 0 0 0 0 1 1 1 1 1 3 3 2 2 0 0 0 1 2 3 11 10 2
Netherlands 7 10 9 10 8 8 6 11 16 15 15 15 13 6 9 6 4 3 3 2 3 5 5 3 2 0 0 0 1 2 4 3 3 3 5 6 8 2
Poland 7 8 8 4 3 3 5 4 4 2 1 1 1 4 4 5 6 7 6 6 7 2 2 2 3 4 5 6 5 6 5 3 4 6 3 1 0 0
Saudi Arabia 6 7 8 7 6 6 6 6 6 5 3 3 3 3 4 4 6 5 5 6 7 4 4 3 4 3 3 3 4 6 4 4 2 0 0 0 2 4
India 6 6 4 4 4 3 3 3 3 3 2 2 3 4 5 4 4 5 9 11 11 9 9 12 11 8 5 2 2 4 5 3 6 8 6 9 8 10
Russia 6 6 7 7 7 7 7 7 3 2 2 3 2 3 4 3 3 5 7 7 8 9 5 5 8 8 5 5 12 11 11 8 5 8 9 7 5 2
Singapore 5 4 3 3 3 3 3 1 4 4 4 4 5 3 2 1 1 1 1 0 0 0 0 0 0 0 1 1 2 2 1 1 1 0 0 1 2 2
 Switzerland 4 5 5 3 4 4 4 3 3 3 2 2 4 2 3 3 3 4 3 6 6 7 6 5 4 4 1 3 4 4 5 5 4 4 6 7 5 5
United Arab Emirates 4 3 2 1 1 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1
Australia 4 4 5 6 5 5 5 3 2 2 2 3 5 5 5 4 4 3 5 4 6 9 6 5 5 7 6 4 6 4 1 1 1 1 1 1 4 4
Finland 3 3 3 3 3 3 4 3 2 2 2 1 2 1 1 2 3 2 5 2 2 3 2 2 2 3 1 1 2 1 3 2 1 1 1 5 3 1
Spain 3 3 3 3 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 2 2 2 2 2 3 2 4 3 2 3 3 6 5 6 7 9 6 7
Czechia 3 3 3 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Austria 2 3 2 2 2 2 2 1 1 1 1 1 1 0 0 2 3 3 5 1 1 1 1 1 1 1 1 2 2 1 2 8 5 0 0 0 0 0
Thailand 2 2 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bulgaria 2 2 2 2 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0
Turkey 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2 1 1
Slovenia 2 2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0
Ireland 2 4 4 4 5 5 3 1 14 14 14 14 13 12 7 4 2 1 3 0 0 0 1 2 0 0 3 3 1 1 1 1 1 1 1 0 0 1
Denmark 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 2 2 2 2 2 1 1 1 1 1 2 2 2 3 0 0 3 0 1 0 1
Vietnam 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
Israel 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 2 1 3 3 2 0 2 2 1 1 0 0 0 2
Iceland 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Luxembourg 1 1 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0
Argentina 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Portugal 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Morocco 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Hungary 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Belgium 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 2 0 1 1 2 1 1 1 2 1 2 2 0 1 1 2 2 1 4 1
Hong Kong 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 2 1 0 0 0 0 1 1 1 1 0 0 0 0 0
South Africa 0 0 0 0 0 0 0 0 0 0 0 0 3 2 1 1 1 1 1 0 0 0 0 0 0 0 1 1 0 0 1 1 0 1 0 0 1 2
New Zealand 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 3 1 1 0 0 0 0 0 0 0 0 0 5 7 8 5 4 6 1 1 1
Mexico 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 2 1
Croatia 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Greece 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Malaysia 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 1 1 1 2 3 4 3
Slovak Republic 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0
Cyprus 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0
Egypt 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0
Indonesia 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0
Philippines 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0

Fastest supercomputer in TOP500 by country

[edit]

(As of November 2023[34])

Systems ranked No. 1

[edit]

Additional statistics

[edit]

By number of systems as of June 2025:[43]

Top five accelerators/co-processors
Accelerator Systems
NVIDIA AMPERE A100 (Launched: 2020)
24
NVIDIA HOPPER H100 SXM5 80 GB (Launched: 2022)
23
NVIDIA HOPPER H100 (Launched: 2022)
16
NVIDIA AMPERE A100 SXM4 40 GB (Launched: 2020)
16
NVIDIA TESLA V100 (Launched: 2017)
16
Top five manufacturers by system quantity
Manufacturer Systems
Lenovo
135
Hewlett Packard Enterprise
132
EVIDEN
55
DELL
41
Nvidia
27
Top five operating systems
Operating System Systems
Linux
152
CentOS
33
HPE Cray OS
32
Red Hat Enterprise Linux
24
Cray Linux Environment
17

Note: All operating systems of the TOP500 systems are Linux-family based, but Linux above is generic Linux.

Sunway TaihuLight is the system with the most CPU cores (10,649,600). Tianhe-2 has the most GPU/accelerator cores (4,554,752). Aurora is the system with the greatest power consumption with 38,698 kilowatts.

New developments in supercomputing

[edit]

In November 2014, it was announced that the United States was developing two new supercomputers to exceed China's Tianhe-2 in its place as world's fastest supercomputer. The two computers, Sierra and Summit, will each exceed Tianhe-2's 55 peak petaflops. Summit, the more powerful of the two, will deliver 150–300 peak petaflops.[44] On 10 April 2015, US government agencies banned selling chips, from Nvidia to supercomputing centers in China as "acting contrary to the national security ... interests of the United States";[45] and Intel Corporation from providing Xeon chips to China due to their use, according to the US, in researching nuclear weapons – research to which US export control law bans US companies from contributing – "The Department of Commerce refused, saying it was concerned about nuclear research being done with the machine."[46]

On 29 July 2015, President Obama signed an executive order creating a National Strategic Computing Initiative calling for the accelerated development of an exascale (1000 petaflop) system and funding research into post-semiconductor computing.[47]

In June 2016, Japanese firm Fujitsu announced at the International Supercomputing Conference that its future exascale supercomputer will feature processors of its own design that implement the ARMv8 architecture. The Flagship2020 program, by Fujitsu for RIKEN plans to break the exaflops barrier by 2020 through the Fugaku supercomputer, (and "it looks like China and France have a chance to do so and that the United States is content – for the moment at least – to wait until 2023 to break through the exaflops barrier."[48]) These processors will also implement extensions to the ARMv8 architecture equivalent to HPC-ACE2 that Fujitsu is developing with Arm.[48]

In June 2016, Sunway TaihuLight became the No. 1 system with 93 petaflop/s (PFLOP/s) on the Linpack benchmark.[49]

In November 2016, Piz Daint was upgraded, moving it from 8th to 3rd, leaving the US with no systems under the TOP3 for the 2nd time.[50][51]

Inspur, based out of Jinan, China, is one of the largest HPC system manufacturers. As of May 2017, Inspur has become the third manufacturer to have manufactured a 64-way system – a record that has previously been held by IBM and HP. The company has registered over $10B in revenue and has provided a number of systems to countries such as Sudan, Zimbabwe, Saudi Arabia and Venezuela. Inspur was also a major technology partner behind both the Tianhe-2 and Taihu supercomputers, occupying the top 2 positions of the TOP500 list up until November 2017. Inspur and Supermicro released a few platforms aimed at HPC using GPU such as SR-AI and AGX-2 in May 2017.[52]

In June 2018, Summit, an IBM-built system at the Oak Ridge National Laboratory (ORNL) in Tennessee, US, took the No. 1 spot with a performance of 122.3 petaflop/s (PFLOP/s), and Sierra, a very similar system at the Lawrence Livermore National Laboratory, CA, US took #3. These systems also took the first two spots on the HPCG benchmark. Due to Summit and Sierra, the US took back the lead as consumer of HPC performance with 38.2% of the overall installed performance while China was second with 29.1% of the overall installed performance. For the first time ever, the leading HPC manufacturer was not a US company. Lenovo took the lead with 23.8% of systems installed. It is followed by HPE with 15.8%, Inspur with 13.6%, Cray with 11.2%, and Sugon with 11%.[53]

On 18 March 2019, the United States Department of Energy and Intel announced the first exaFLOP supercomputer would be operational at Argonne National Laboratory by the end of 2021. The computer, named Aurora, was delivered to Argonne by Intel and Cray.[54][55]

On 7 May 2019, The U.S. Department of Energy announced a contract with Cray to build the "Frontier" supercomputer at Oak Ridge National Laboratory. Frontier, originally anticipated to be operational in 2021, was projected to be the world's most powerful computer, with a peak performance of greater than 1.5 exaflops.[56]

Since June 2019, all TOP500 systems deliver a petaflop or more on the High Performance Linpack (HPL) benchmark, with the entry level to the list now at 1.022 petaflops.[57]

In May 2022, the Frontier supercomputer broke the exascale barrier, completing more than a quintillion 64-bit floating point arithmetic calculations per second. Frontier clocked in at approximately 1.1 exaflops, beating out the previous record-holder, Fugaku.[58][59] In June 2024, Aurora was the second computer on the TOP500 to post an exascale Rmax value, at 1.012 exaflops.[60]

Since then, Frontier has been dethroned by El Capitan, hosted at Lawrence Livermore National Laboratory, with an HPL score of 1.742 exaflops.[61]

Large machines not on the list

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Some major systems are not on the list. A prominent example is the NCSA's Blue Waters which publicly announced the decision not to participate in the list[62] because they do not feel it accurately indicates the ability of any system to do useful work.[63]

Other organizations decide not to list systems for security and/or commercial competitiveness reasons. One such example is the National Supercomputing Center at Qingdao's OceanLight supercomputer, completed in March 2021, which was submitted for, and won, the Gordon Bell Prize. The computer is an exaflop computer, but was not submitted to the TOP500 list; the first exaflop machine submitted to the TOP500 list was Frontier. Analysts suspected that the reason the NSCQ did not submit what would otherwise have been the world's first exascale supercomputer was to avoid inflaming political sentiments and fears within the United States, in the context of the United States – China trade war.[64] Similarly, government agencies like the National Security Agency formerly submitted their devices to the TOP500, only to stop after 1998.[65]

Additional purpose-built machines that are not capable or do not run the benchmark were not included, such as RIKEN MDGRAPE-3 and MDGRAPE-4.

A Google Tensor Processing Unit v4 pod is capable of 1.1 exaflops of peak performance,[66] while TPU v5p claims over 4 exaflops in Bfloat16 floating-point format,[67] however, these units are highly specialized to run machine learning workloads and the TOP500 measures a specific benchmark algorithm using a specific numeric precision.

Tesla Dojo's primary unnamed cluster using 5,760 Nvidia A100 graphics processing units (GPUs) was touted by Andrej Karpathy in 2021 at the fourth International Joint Conference on Computer Vision and Pattern Recognition (CCVPR 2021) to be "roughly the number five supercomputer in the world"[68] at approximately 81.6 petaflops, based on scaling the performance of the Nvidia Selene supercomputer, which uses similar components.[69]

In March 2024, Meta AI disclosed the operation of two datacenters with 24,576 H100 GPUs,[70] which is almost 2x as on the Microsoft Azure Eagle (#3 as of September 2024), which could have made them occupy 3rd and 4th places in TOP500, but neither have been benchmarked. During company's Q3 2024 earnings call in October, M. Zuckerberg disclosed usage of a cluster with over 100,000 H100s.[71]

xAI Memphis Supercluster (also known as "Colossus") allegedly features 100,000 of the same H100 GPUs, which could have put it in the first place, but it is reportedly not in full operation due to power shortages.[72]

After the onset of US-China Trade War, China has largely shrouded its newly online supercomputers and data centers in secrecy, opting out of reporting to the TOP500 list.[4] This is partly driven by fears of being targeted by US sanctions placed on Chinese domestic suppliers.[73][5]

Computers and architectures that have dropped off the list

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IBM Roadrunner[74] is no longer on the list (nor is any other using the Cell coprocessor, or PowerXCell).

Although Itanium-based systems reached second rank in 2004,[75][76] none now remain.

Similarly (non-SIMD-style) vector processors (NEC-based such as the Earth simulator that was fastest in 2002[77]) have also fallen off the list. Also the Sun Starfire computers that occupied many spots in the past now no longer appear.

The last non-Linux computers on the list – the two AIX ones – running on POWER7 (in July 2017 ranked 494th and 495th,[78] originally 86th and 85th), dropped off the list in November 2017.

Notes

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See also

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References

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