Parts/Interconnect/IBM SP Switch2
Why this part
ASCI White was 512 sixteen-way SMP nodes rather than thousands of thin ones, so the switch carried far less traffic than a distributed-memory design of the same size would have. The fabric choice follows the node choice: buy fat nodes and you can afford a more modest network, because most communication never leaves the box. That trade reappears every time someone builds a large NVLink domain.
Systems using this part
- Systems
- 1
- Rmax underneath
- 4.94 TFlop/s
- Units recorded
- -
| System | Role | Country | Units | System Rmax | Supplied by | Rank |
|---|---|---|---|---|---|---|
| ASCI White 2000-06 | Interconnect | USA | - | 4.94 TFlop/s | IBM | #1 → |
“Units recorded” sums only the edges where a public source states a quantity. It is a floor, not a total, and should never be read as installed base.