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The Earth Simulator System

The Earth Simulator System. Hui Zhu Instructor Dr. Damian. Introduction. Application to the atmospheric and oceanographic science Application to the solid earth science. System Overview. Highly parallel vector supercomputer system 1. consisting of 640 processor nodes (PN)

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The Earth Simulator System

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  1. The Earth Simulator System Hui Zhu Instructor Dr. Damian

  2. Introduction • Application to the atmospheric and oceanographic science • Application to the solid earth science

  3. System Overview • Highly parallel vector supercomputer system 1. consisting of 640 processor nodes (PN) 2. Interconnection network (IN) The physical system is composed of • 320 PN cabinets, each containing 2 processor nodes • 65 IN cabinets contain the interconnection network

  4. Processor Node (PN) • Shared memory parallel vector supercomputer • Every node contains • 8 arithmetic processors (AP). • a main memory system (MS).

  5. Interconnection Network • A huge 640*640 crossbar switch • Divided into a control unit and 128 data switch units

  6. Interconnection Network • No supervisor exists in the interconnection network. The control unit and the 128 data switch units operate asynchronously.

  7. Interconnection Network • Error Occurrence Rate Problem 83,200 pairs of serial transmissions are used for realizing the aggregate switching capacity, 130 pairs are used for connecting processor node and interconnection network ECC codes are added to the transfer data

  8. Interconnection Network • To realize the high-speed parallel processing synchronization 1. Global Barrier Counter (GBC) 2. Global Barrier Flag (GBF)

  9. OS Managment • Super Cluster System 640 PNs grouped into 40 clusters • A supervisor called Super-Cluster control station(SCCS) manages all clusters • Every cluster has it’s own cluster control station(CCS)

  10. Performance • The most powerful supercomputer in the world • Achieving 35.86 TFLOPS, 87.5% of peak performance of the system in LINPACK benchmark

  11. Conclusion • Vector processor • Shared memory • High-bandwidth and non-blocking interconnection crossbar network

  12. Conclusion • UK Met office for operational weather forecasts and the Hadley center for climate research have some collaboration with the Earth simulator.

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