Parallel Rayleigh Quotient Optimization with FSAI-Based Preconditioning

Table 7

Performance of LOBPCG-hypre with Parasails and 16 processors in the computation of the smallest eigenvalue using bl = 1 and bl = 2 and FSAI-DACG.

	LOBPCG, bl = 1		LOBPCG, bl = 2		FSAI-DACG
	iter	𝑇tot	iter	𝑇tot	iter	𝑇tot
FAULT-639	144	10.1	132	17.5	1030	15.4
PO-878	99	43.2	34	29.1	993	20.4
GEO-1493	55	40.2	26	37.3	754	27.0
CUBE-6091	144	5218.8	58	522.4	3257	561.1