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Parts/CPUs/AMD Opteron 2435 (Istanbul)

CPUs · K10 · 2009

AMD Opteron 2435 (Istanbul)

Six-core Opteron, two per Cray XT5 node in Jaguar.

Why this part

Jaguar's Cray XT5 partition was upgraded from four-core to six-core parts in the autumn of 2009, which took the machine to 1.759 petaflops and the top of the November list. The upgrade is the interesting part: the socket, the board and the SeaStar2+ fabric all stayed, and performance rose by half. Buying a machine whose processors can be replaced without replacing the system around them is a procurement decision as much as an engineering one.

Systems using this part

Systems
1
Rmax underneath
1.76 PFlop/s
Units recorded
-
0 of 1 edges disclose a quantity
System Role Country Units System Rmax Supplied by Rank
Jaguar
2009-11
CPU USA - 1.76 PFlop/s AMD #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.

Further reading