IBM p690+ performance on the granular chute flow benchmark

Processors: 1 8 64 512
Fixed CPU secs: 2.0400 0.2350 0.0494 0.0292
Fixed || Efficiency: 100.0% 108.5% 64.5% 13.6%
Scaled CPU secs: 2.0400 2.0500 2.9200 3.1100
Scaled || Efficiency: 100.0% 99.5% 69.9% 65.6%