Comparison of Three Different Parallel Computation Methods for a Two-Dimensional Dam-Break Model

Table 1

Calculation time and acceleration effect of different models (total simulation time: 2,988 s).

	Shortest time (s)	Speedup ratio	Time-saving ratio (%)
Serial model	1,639	1	0
OpenACC model	79	20.7	95
OpenMP model	168	9.8	90
MPI model	324	5.1	80