Parallel Implementation of FEM Solver for Shared Memory Using OpenMP

Table 9

Construction of equation using butterfly communication using mash (2099201 nodes and 4198404 elements).

Threads	1	2	3	4	5	6	7	8
	99.4357	47.371	30.871	22.813	17.414	14.917	12.429	10.996
	0	24.496	33.249	37.381	39.707	41.887	42.692	44.496
Speedup	1.000	1.384	1.509	1.651	1.715	1.745	1.790	1.789
Threads	9	10	11	12	13	14	15	16
	9.854	8.861	7.962	7.296	6.651	6.082	5.803	5.486
	45.829	45.249	44.608	45.317	45.632	45.674	46.649	47.515
Speedup	1.780	1.820	1.882	1.886	1.890	1.908	1.888	1.868