QCDOC cont'd

• 500 Mhz, 32 bit PPC 440 core

• 64-bit, 1Gflops FPU

• 4 MB on chip mem

• nearest neighbour comm. 12 dir with 12 Gbit/s latency: 550 ns

• requires assembler Assembler generator (Boyle)

• 10 kW per susTflops

• Estimated price/perf: < 1 $/Mflop

• Advantage: high compute power on small lattices