Communication Optimization Technology Based on Network Dynamic Performance Model

Table 2

Test results of stencil communication optimization of the Sunway TaihuLight system.

Number of nodes	2048			4096
Message size	Before optimization	After optimization	Speed-up ratio	Before optimization	After optimization	Speed-up ratio
1 k	9.234411	9.001827	1.025837	14.381728	13.382712	1.07465
2 k	8.231239	8.138279	1.011423	14.381979	13.391783	1.073941
4 k	8.123486	8.01416	1.013642	16.737168	15.773643	1.061084
8 k	8.123227	8.108371	1.001832	14.391076	13.847271	1.039272
1 6k	9.549201	9.132407	1.045639	14.837273	13.838275	1.072191
32 k	8.888959	8.566869	1.037597	16.948927	14.989327	1.130733
64 k	9.611331	9.086707	1.057735	14.441525	13.426739	1.075579
128 k	8.888959	8.566869	1.037597	14.611412	13.532244	1.079748
256 k	8.785386	8.33516	1.054015	16.599016	14.64771	1.133216
512 k	8.778187	8.078187	1.086653	14.517939	13.429475	1.08105
1 m	9.338786	8.463902	1.103367	14.325862	13.001551	1.101858
2 m	9.311491	8.435159	1.10389	17.006372	14.313058	1.188172
4 m	9.308542	8.410059	1.106834	16.290833	14.371748	1.133532
8 m	10.218814	8.56815	1.192651	15.568335	14.043371	1.10859