Graph500
The Graph500 is a rating of supercomputer systems, focused on data-intensive loads. The project was announced on International Supercomputing Conference in June 2010. The first list was published at the ACM/IEEE Supercomputing Conference in November 2010. New versions of the list are published twice a year. The main performance metric used to rank the supercomputers is GTEPS.
Richard Murphy from Sandia, says that "The Graph500's goal is to promote awareness of complex data problems", instead of focusing on computer benchmarks like HPL, which TOP500 is based on.
Despite its name, there were several hundreds of systems in the rating, growing up to 174 in June 2014.
The algorithm and implementation that won the championship is published in the paper titled "Extreme scale breadth-first search on supercomputers".
There is also list Green Graph 500, which uses same performance metric, but sorts list according to performance per Watt, like Green 500 works with TOP500.
Benchmark
The benchmark used in Graph500 stresses the communication subsystem of the system, instead of counting double precision floating-point. It is based on a breadth-first search in a large undirected graph. There are three computation kernels in the benchmark: the first kernel is to generate the graph and compress it into sparse structures CSR or CSC ; the second kernel does a parallel BFS search of some random vertices ; the third kernel runs a single-source shortest paths computation. Six possible sizes of graph are defined: toy, mini, small, medium, large, and huge.The reference implementation of the benchmark contains several versions:
- serial high-level in GNU Octave
- serial low-level in C
- parallel C version with usage of OpenMP
- two versions for Cray-XMT
- basic MPI version
- optimized MPI version
Top 10 ranking
2020
Arm-based Fugaku took the op spot of the list.2016
According to June 2016 release of the list:Rank | Site | Machine | Number of nodes | Number of cores | Problem scale | GTEPS |
1 | Riken Advanced Institute for Computational Science | K computer | 82944 | 663552 | 40 | 38621.4 |
2 | National Supercomputing Center in Wuxi | Sunway TaihuLight | 40768 | 10599680 | 40 | 23755.7 |
3 | Lawrence Livermore National Laboratory | IBM Sequoia | 98304 | 1572864 | 41 | 23751 |
4 | Argonne National Laboratory | IBM Mira | 49152 | 786432 | 40 | 14982 |
5 | Forschungszentrum Jülich | JUQUEEN | 16384 | 262144 | 38 | 5848 |
6 | CINECA | Fermi | 8192 | 131072 | 37 | 2567 |
7 | Changsha, China | Tianhe-2 | 8192 | 196608 | 36 | 2061.48 |
8 | CNRS/IDRIS-GENCI | Turing | 4096 | 65536 | 36 | 1427 |
8 | Science and Technology Facilities Council – Daresbury Laboratory | Blue Joule | 4096 | 65536 | 36 | 1427 |
8 | University of Edinburgh | DIRAC | 4096 | 65536 | 36 | 1427 |
8 | EDF R&D | Zumbrota | 4096 | 65536 | 36 | 1427 |
8 | Victorian Life Sciences Computation Initiative | Avoca | 4096 | 65536 | 36 | 1427 |
2014
According to June 2014 release of the list:Rank | Site | Machine | Number of nodes | Number of cores | Problem scale | GTEPS |
1 | RIKEN Advanced Institute for Computational Science | K computer | 65536 | 524288 | 40 | 17977.1 |
2 | Lawrence Livermore National Laboratory | IBM Sequoia | 65536 | 1048576 | 40 | 16599 |
3 | Argonne National Laboratory | IBM Mira | 49152 | 786432 | 40 | 14328 |
4 | Forschungszentrum Jülich | JUQUEEN | 16384 | 262144 | 38 | 5848 |
5 | CINECA | Fermi | 8192 | 131072 | 37 | 2567 |
6 | Changsha, China | Tianhe-2 | 8192 | 196608 | 36 | 2061.48 |
7 | CNRS/IDRIS-GENCI | Turing | 4096 | 65536 | 36 | 1427 |
7 | Science and Technology Facilities Council - Daresbury Laboratory | Blue Joule | 4096 | 65536 | 36 | 1427 |
7 | University of Edinburgh | DIRAC | 4096 | 65536 | 36 | 1427 |
7 | EDF R&D | Zumbrota | 4096 | 65536 | 36 | 1427 |
7 | Victorian Life Sciences Computation Initiative | Avoca | 4096 | 65536 | 36 | 1427 |
2013
According to June 2013 release of the list:Rank | Site | Machine | Number of nodes | Number of cores | Problem scale | GTEPS |
1 | Lawrence Livermore National Laboratory | IBM Sequoia | 65536 | 1048576 | 40 | 15363 |
2 | Argonne National Laboratory | IBM Mira | 49152 | 786432 | 40 | 14328 |
3 | Forschungszentrum Jülich | JUQUEEN | 16384 | 262144 | 38 | 5848 |
4 | RIKEN Advanced Institute for Computational Science | K computer | 65536 | 524288 | 40 | 5524.12 |
5 | CINECA | Fermi | 8192 | 131072 | 37 | 2567 |
6 | Changsha, China | Tianhe-2 | 8192 | 196608 | 36 | 2061.48 |
7 | CNRS/IDRIS-GENCI | Turing | 4096 | 65536 | 36 | 1427 |
7 | Science and Technology Facilities Council - Daresbury Laboratory | Blue Joule | 4096 | 65536 | 36 | 1427 |
7 | University of Edinburgh | DIRAC | 4096 | 65536 | 36 | 1427 |
7 | EDF R&D | Zumbrota | 4096 | 65536 | 36 | 1427 |
7 | Victorian Life Sciences Computation Initiative | Avoca | 4096 | 65536 | 36 | 1427 |