$t_{s t e p}^{c}$ (ms)	$t_{s t e p}^{f}$ (μs)	$N^{f}$	Execution Time (ms)
$t_{s t e p}^{c}$ (ms)	$t_{s t e p}^{f}$ (μs)	$N^{f}$	Sequential	OpenMP-HSW	OpenMP-KNL	OpenACC-GPU	CUDA-GPU
20	200	128	1.778	0.191	0.087	0.267	0.183
10	100	256	3.594	0.245	0.113	0.347	0.242
5	50	512	7.105	0.452	0.196	0.376	0.283