Multiobjective Level-Wise Scientific Workflow Optimization in IaaS Public Cloud Environment

Table 4

Convergence, diversity, and execution time for SPEA2 and NSGA−II.

Workflow	Algorithm	Avg. Conv. (±σ)	Avg. Div. (±σ)	Avg. Exec. (sec) (±σ)
Epigenomics_24	SPEA2	0.0240 (±0.0011)	1.8554 (±0.0367)	406.5189 (±14.9)
	NSGA-II	0.0294 (±0.0177)	1.7936 (±0.0992)	74.5451 (±6.5)
Montage_25	SPEA2	0.0060 (±0.0039)	1.0104 (±0.4130)	372.7346 (±26.9)
	NSGA-II	0.0059 (±0.0005)	1.2770 (±0.1713)	68.5270 (±16.2)
CyberShake_30	SPEA2	0.0094 (±0.0012)	1.3485 (±0.0019)	414.6732 (±11.0)
	NSGA-II	0.0079 (±0.0012)	1.4026 (±0.0642)	53.9493 (±1.8)
Epigenomics_46	SPEA2	0.1661 (±0.2064)	1.7670 (±0.0390)	431.8035 (±30.5)
	NSGA-II	0.1118 (±0.0857)	1.7152 (±0.0918)	71.5525 (±5.5)
Montage_50	SPEA2	0.0033 (±0.0040)	1.4672 (±0.1394)	366.6482 (±21.9)
	NSGA-II	0.0100 (±0.0031)	1.2758 (±0.1414)	63.8932 (±4.6)
CyberShake_50	SPEA2	0.0209 (±0.0077)	1.3629 (±0.1168)	415.7871 (±17.6)
	NSGA-II	0.0224 (±0.0060)	1.3372 (±0.9048)	56.6219 (±3.5)
Epigenomics_100	SPEA2	0.1005 (±0.0518)	1.7229 (±0.0079)	388.3032 (±13.0)
	NSGA-II	0.1423 (±0.1108)	1.7188 (±0.0004)	74.4787 (±6.3)
Montage_100	SPEA2	0.0178 (±0.0140)	1.1626 (±0.2073)	375.2320 (±13.3)
	NSGA-II	0.0178 (±0.0055)	1.2122 (±0.1533)	71.6682 (±10.1)
CyberShake_100	SPEA2	0.0731 (±0.0116)	1.0607 (±0.0361)	388.4410 (±10.4)
	NSGA-II	0.0721 (±0.0240)	1.2178 (±0.0665)	60.2484 (±5.0)
Epigenomics_997	SPEA2	2.3735 (±1.7707)	1.5694 (±0.0521)	545.0587 (±16.3)
	NSGA-II	12.652 (±6.5924)	1.5404 (±0.0777)	225.4969 (±15.7)
Montage_1000	SPEA2	0.0027 (±0.0044)	1.5974 (±0.1057)	546.3927 (±27.2)
	NSGA-II	0.0573 (±0.0188)	1.6398 (±0.1235)	216.1495 (±4.0)
CyberShake_1000	SPEA2	0.2783 (±0.0532)	1.1775 (±0.1606)	522.4185 (±18.7)
	NSGA-II	0.3458 (±0.1087)	1.3284 (±0.0589)	170.0315 (±3.7)