A Strategy for Automatic Performance Tuning of Stencil Computations on GPUs

Table 11

Performance for varying computational intensity.

Strategy	Speedup	Configs	Compile time (s)	Runtime (s)
ExpS	1.23	1066	250.30	5.36
Rand	1.00	210	54.19	9.57
Hybrid oracle	1.32	1018	245.35	27.70
Hybrid heuristic	1.32	253	52.71	5.23