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Parts/CPUs/IBM PowerPC 450 850MHz

CPUs · BlueGene/P · 2007

IBM PowerPC 450 850MHz

The middle BlueGene generation, between the 440 of BlueGene/L and the Power BQC of BlueGene/Q.

Why this part

The same embedded-core logic as BlueGene/L, one generation on: four cores instead of two, 850 MHz instead of 700, and a double-precision floating-point unit widened to keep the arithmetic throughput growing without the clock. Intrepid ran 163,840 cores of it at Argonne. The line's discipline was that each generation bought performance from parallelism and width rather than frequency, which is why BlueGene held its perf-per-watt lead for most of a decade.

Systems using this part

Systems
7
Rmax underneath
983.58 TFlop/s
Units recorded
131,072
2 of 7 edges disclose a quantity
System Role Country Units System Rmax Supplied by Rank
DOST Blue Gene/P
2014-04
CPU Philippines - - IBM -
Shaheen
2009
CPU Saudi Arabia 65,536 190.90 TFlop/s IBM #14 →
SAITC Blue Gene/P
2008-09
CPU Bulgaria - 23.86 TFlop/s IBM #379 →
Intrepid
2008-01
CPU USA - 458.61 TFlop/s IBM #3 →
Frontier2
2008
CPU France - 95.45 TFlop/s IBM #14 →
CHPC Blue Gene/P
2008
CPU South Africa - 23.86 TFlop/s IBM #128 →
JUGENE
2007-10
CPU Germany 65,536 190.90 TFlop/s IBM #2 →

“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