The latest global ranking of high performance compute clusters is a mixed bag for Australia, saved by the National Computational Infrastructure’s (NCI) introduction of its new supercomputer.
Phase one of NCI’s Gadi, which was made available for user testing on Monday, stormed into 47th place based on Teraflops (Tflop/s) - the ability to execute one million million (1012) floating-point operations per second.
The Fujitsu-built cluster features 72,576 cores and has an Rmax of 4407.5 TFlop/s, with an Rpeak score of 7431.8 TFlop/s.
When completed, the NCI hopes Gadi will be among the top 25 most powerful machines globally.
The NCI’s ageing Raijin supercomputer was the next highest ranking Australian supercomputer, despite being slated for decommissioning in late January.
Raijin is currently ranked 239th in world, a slip of 66 places from the June Top500.
Australia’s other national HPC facility, the Pawsey Supercomputing Centre, has finally fallen out of the top 500 after only scraping into 454th position in the last listing. Pawsey was granted $70 million from the federal government in April 2018 to replace its Magnus supercomputer, and is currently seeking tenders for the new build.
Meanwhile, locally-based cloud providers have largely fallen out of the top 500 after making a sudden appearance in last year’s lists.
Of the three that debuted in 2018, only “Software Vendor (M)” remains, sitting in 249th spot with 57,600 cores. It’s a fall of 70 spaces compared to June’s list, and 144 spots since its debut in June last year.
IBM's Summit and Sierra machines at the US Department of Energy once again took out spots one and two respectively, followed by The National Supercomputing Center in Wuxi, China.
| Cluster | Rank | Previous Rank | Rmax (TFlop/s) | Rpeak (TFlop/s) | Cores |
| NCI Gadi Phase 1 | 47 | n/a | 4407.5 | 7431.8 | 72,576 |
| NCI Raijin | 239 | 173 | 1676.2 |
3801.4 | 87,224 |
| 'Cloud Provider' | 249 | 179 | 1649.1 | 2119.7 | 57,600 |
