Table 2.

Ivy Bridge Platform and Hardware Performance Counters for the Sandstone5K Dataset. Legend for counters: FLOPS: (Double Precision Scalar FLOPS + Double Precision Vector FLOPS) / (); Vector%: Vectorization Ratio; L2 Miss Ratio: average % across all threads at a given concurrency.

Counter/Measure	Code version	Concurrency
		1	2	4	8
Runtime (secs)	VTK-m/DPP	2.51	1.46	1.30	0.83
	C++/OpenMP	13.34	6.66	3.35	1.83
	C++/Threads	13.94	7.00	3.51	2.16
		1	2	4	8
FLOPS ()	VTK-m/DPP	0.47	0.33	0.33	0.33
	C++/OpenMP	7.14	7.13	7.13	7.13
	C++/Threads	7.25	7.26	7.26	7.27
		1	2	4	8
L2 Miss Ratio %	VTK-m/DPP	0.26	0.26	0.25	0.25
	C++/OpenMP	0.05	0.07	0.05	0.05
	C++/Threads	0.04	0.06	0.06	0.06
		1
Vector %	VTK-m/DPP
	C++/OpenMP
	C++/Threads