Parallel Solutions for Voxel-Based Simulations of Reaction-Diffusion Systems

Table 3

Evaluation of the execution times considering the node of the second cluster equipped with the Intel Xeon E5645 CPU and the GTX-580 device. Speedup values are computed considering the TimePerStep values.

Number of compartments	Blocks thread	TransferTime (ms)	TimePerStep (ms)	Speedup
256	Seq.	81.2	2.1	—
	1-32	163.7	6.5	0.3
	32-32	170.8	0.4	5.8
	64-32	159.8	0.2	12.4
	128-32	186.7	0.1	22.6
	256-32	162.7	0.1	24.5
1024	Seq.	82.5	7.6	—
	1-32	193.5	22.1	0.3
	32-32	179.1	1.4	5.5
	64-32	188.6	0.6	12.0
	128-32	182.2	0.4	20.4
4096	Seq.	88.9	29.9	—
	1-32	175.6	80.4	0.4
	32-32	177.0	4.9	6.1
	64-32	205.0	2.4	12.3