IBM BG/L performance on the granular chute flow benchmark

Processors: 1 8 64 512 4096 32768 65536
Fixed CPU secs: 10.3559 1.5021 0.2452 0.0414
Fixed || Efficiency: 100.0% 86.2% 66.0% 48.9%
Scaled CPU secs: 10.3559 10.6350 9.7192 9.3297 9.8342 9.9702 11.8408
Scaled || Efficiency: 100.0% 97.4% 106.6% 111.0% 105.3% 103.9% 87.5%