COMPUTE ATLAS Supercomputer supply-chain graph
1153 systems 482 sites Sourced data

Parts/CPUs/Cray-2 CPU

CPUs · Cray-2 · 1985

Cray-2 CPU

One of up to 4 background processors in a shared-memory Cray-2 system, cycle time 4.1 ns (about 244 MHz); the whole board stack ran immersed in Fluorinert.

Why this part

cray-history.net's detailed technical page gives 4.1 ns (244 MHz); a separate Wikipedia extraction gave an 8 ns (125 MHz) figure for the same machine. The two do not reconcile and this dataset uses the more detailed cray-history.net figure, flagging the discrepancy rather than silently picking one.

Systems using this part

Systems
1
Rmax underneath
0.0 GFlop/s
Units recorded
4
1 of 1 edges disclose a quantity
System Role Country Units System Rmax Supplied by Rank
Cray-2
1985-05
CPU USA 4 - Cray
now Hewlett Packard Enterprise
-

“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.

Further reading