Raijin, named after the Shinto God of thunder, lightning and storms, is a hybrid Fujitsu Primergy and Lenovo NeXtScale high-performance, distributed-memory cluster, procured with funding from the Australian Government, through its Super Science Initiative (under the EIF Climate HPC Centre Funding Agreement between the Commonwealth of Australia and the Australian National University), as well as through the 2015-16 Agility Fund of the National Collaborative Research Infrastructure Strategy.
The original system was installed in 2012 and entered production use in June 2013. System updates entered production in November 2016, and again in mid-2017. Raijin currently comprises:
- 84,656 cores (Intel Xeon Sandy Bridge 2.6 GHz, Broadwell 2.6 GHz) in 4416 compute nodes
- 120 NVIDIA Tesla K80 GPUs in 30 nodes and 8 NVIDIA Tesla P100 GPUs in 2 nodes
- 32 Intel Xeon Phi (64 core Knights Landing, 1.3 GHz) in 32 compute nodesopus
- 4 IBM POWER8 nodes (64 cores running at 4.02GHz)
- 300 Terabytes of main memory
- Hybrid FDR/EDR Mellanox Infiniband full fat tree interconnect (up to 100 Gb/sec)
- 8 Petabytes of high-performance operational storage capacity
The unit of shared memory parallelism is the node, which comprises dual 8- or 14-core Intel Xeon (Sandy Bridge, Broadwell 2.6 GHz) processors, i.e., 16 or 28 cores. The memory specification across the nodes varies from 32 Gigabytes to 1 Terabyte.