Hardware
The Earth Simulator consists of NEC SX-ACE, 5120 nodes.
| Node | |
| Number of CPU | 1 |
| Number of cores | 4 |
| Peak perfomance / core | 64 GFLOPS |
| Main memory | 64 GB |
| Memory band width | 256 GB/s |
| System | |
| Total number of Processor nodes | 5120 |
| Total number of CPUs | 5120 |
| Total number of cores | 20480 |
| Total peak performance | 1.3 PFLOPS |
| Total main memory | 320 TB |
| Total memory band width | 1.3 PB/s |
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