Parallel RFSAI-BFGS Preconditioners for Large Symmetric Eigenproblems

Table 3

RFSAI parameters used for the eigensolution of the four test problems.

Matrix name	𝐺out			nband	𝐺in			𝜌
	𝛿	𝑑	𝜀		𝛿	𝑑	𝜀
FLOW3D-663	0.01	4	0.05	1	0.01	2	0.05	1.16
EMILIA-923	0.1	4	0.05	1	0.05	2	0.01	0.74
LONG-1103	0.15	4	0.1	1	0.1	4	0.1	0.29
GEO-1438	0.15	4	0.1	1	0.1	2	0.05	0.34