Efficient and Memory Saving Method Based on Pseudoskeleton Approximation for Analysis of Finite Periodic Structures

Table 1

Computation time and memory usage of MLFMA and periodic PSA for scattering of elements.

Gap	Methods	Computation time	Memory usage
0.5 m	MLFMA	210 s	8726 MB
	Periodic PSA	109 s	2145 MB
0.1 m	MLFMA	222 s	8801 MB
	Periodic PSA	131 s	2305 MB