Parallel Implementation of FEM Solver for Shared Memory Using OpenMP

Table 8

Construction of equation using butterfly communication using mash (525313 nodes and 1050628 elements).

Threads	1	2	3	4	5	6	7	8
	22.431	10.625	6.899	5.049	3.970	3.257	2.818	2.437
	0	5.557	7.244	8.200	9.019	9.054	9.499	9.541
Speedup	1.000	1.377	1.495	1.661	1.698	1.807	1.811	1.843
Threads	9	10	11	12	13	14	15	16
	2.165	1.952	1.716	1.598	1.476	1.384	1.283	1.186
	10.395	10.113	10.339	10.581	10.473	10.668	10.525	10.577
Speedup	1.774	1.849	1.821	1.807	1.866	1.853	1.879	1.849