The SPP 2000 (contd.)
Current configuration is 256 CPUs in three hypernodes
- One hypernode of 128 CPUs
- Two hypernodes of 64 CPUs each
Nodes interconnected using CTI and HiPPI (two switches)
HPSS traffic travels over HiPPI
ATM connections planned to be installed soon in the 128 CPU hypernode
Maximum hardware limit on CPUs is currently 512: no limit in software
There is 1 TByte of disk attached to the system
Disk controller configuration were limiting I/O rates to around 15 Mbytes/sec. Latest configuration has achieved 1 GByte/sec parallel reads and writes
One IP address per Hypernode.