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NEC Cluster Hardware and Architecture (laki + laki2)
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Hardware NEC Nehalem Cluster
Architecture
The NEC Nehalem Cluster platform consists of several frontend nodes for interactive access (for access details see NEC_Nehalem_Cluster_Access) and several compute nodes for execution of parallel programs.
Compute node CPU architecture types installed:
- Intel Xeon 5560 (nehalem)
- Nvidia Tesla S870 GPU
Features
- Operating System: ScientificLinux 5.3 on Intel based nodes
- Batchsystem: Torque/Maui/Moab
- node-node interconnect: Infiniband + GigE
- Global Disk 60 TB (lustre)
- OpenMPI
- Compiler: Intel, GCC, Java
| Function | Name | CPU | Sockets | Memory | Disk | PBS properties | Interconnect |
|---|---|---|---|---|---|---|---|
| Compute Nodes | n010501 - n143302 (700 nodes) | Intel Xeon X5560 2.80 GHz | 2 | 12 GB | - | nehalem | Infiniband |
| Compute Nodes with Tesla S870 GPU | (32 nodes) | Intel Xeon X5560 2.80 GHz + Tesla S870 GPU | 2 | 12 GB | - | tesla | Infiniband |
| Login Node | cl3fr1 / cl3fr2 | Intel Xeon X5560 2.80 GHz | 2 | 48 GB | 150 GB mirror | - | 10GigE/Infiniband |
| I/O Server | (2 lustre nodes) | Intel Xeon E5405 2.0 GHz | 8 GB | 60 TB | - | Infiniband | |
| Infrastructure (NTP,PBS,DNS,DHCP,FTP,NAT,NFS,Imager,...) | 6 nodes | - | GigE |