Overview of the past Supercomputer System
Operation period: December 1, 2018 – February 28, 2025
System configuration
Supercomputer system consists of Grand Chariot (Subsystem A), Polaire (Subsystem B), and the Supercomputer storage system.
System specifications
Grand Chariot (Subsystem A)
| System | Machine name | PRIMERGY CX2550 M4,PRIMERGY CX400 M4 |
| Number of nodes | 1,004 | |
| Peak FLOPS (Double precision) |
3.08PFLOPS | |
| Total memory amount | 376.5TB | |
| Network topology | Full-bisection Fat Tree | |
| Node | Number of CPUs (Number of cores) |
2 (2×20=40) |
| Peak FLOPS (Double precision) |
3.072TFLOPS (2.4GHz×20-core×32-operation×2CPU) |
|
| Total memory amount | 384GB | |
| Peak memory bandwidth | 255.9GB/s （2,666MHｚ×8B×6ch×2CPU） |
|
| Storage in node | 240GB SSD × 1 | |
| Interconnect | Omni-Path × 2 （12.5GB/s × 2） |
|
| OS | CentOS | |
| CPU | CPU name | Intel Xeon Gold 6148 |
| Architecture | Skylake | |
| Clock | 2.4GHz (Up to 3.7GHz by Turbo boost ) |
|
| Number of cores | 20 | |
| Peak FLOPS (Double precision) |
1.536TFLOPS |
Polaire (Subsystem B)
| System | Machine name | PRIMERGY CX1640 M1, PRIMERGY CX600 M1 |
| Number of nodes | 288 | |
| Peak FLOPS (Double precision) |
0.87PFLOPS | |
| Total memory amount | 31.5TB | |
| Network topology | Full-bisection Fat Tree | |
| Node | Number of CPUs (Number of cores) |
1 (1×68=68) |
| Peak FLOPS (Double precision) |
3.0464TFLOPS (1.4GHz×68-core×32-operation×1CPU) |
|
| Total memory amount | 96GB | |
| Peak memory bandwidth | 115.2GB/s （2,400MHｚ×8B×6ch×1CPU） |
|
| Total memory amount (High-speed memory) |
16GB MCDRAM | |
| Peak memory bandwidth (High-speed memory) |
921.６GB/s （7.2GT/s×8B×8chip×2(R/W)） |
|
| Storage in node | 64GB SATA Flush × 1 | |
| Interconnect | Omni-Path × 1 （12.5GB/s × 1） |
|
| OS | CentOS | |
| CPU | CPU name | Intel Xeon Phi 7250 |
| Architecture | Knights Landing | |
| Clock | 1.4GHz (Up to 1.6GHz by Turbo boost) |
|
| Number of cores | 68 | |
| Peak FLOPS (Double precision) |
3.0464TFLOPS |
Supercomputer storage system
| Machine name | DDN ES14KX |
| File system | DDN EXAScaler (Lustre) |
| Total capacity | 16PB |
| Data transfer speed | 160GB/s |