Supercomputer
IBM Power6 "blizzard"
The supercomputer "blizzard" is the workhorse for the numerical experiments of the German climate researchers.
The architecture of the system is designed for optimal perfomance and efficiency for complex simulations with climate models. The IBM Power6 was selected on the basis of a perfomance benchmark with different climate models on different supercomputers.
Blizzard at a glance:
- peak perfomance 158 TeraFlops/s
- 264 IBM Power6-compute nodes
- 16 Dual Core Processors per node
- all in all 8448 processor cores
- more than 20 TeraByte main memory
- 7 Petabyte GPFS disk storage system
- Infiniband network with 7,6 TeraByte/s aggregate data rate
- 8 x Qlogic 288 port 4x-DDR infiniband switches
- 16 GigaByte/s node to node (bidirectional)
- 25.4 km Infiniband cable
