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Table 6 Power, execution times and energy consumption on different number of GTX980 GPUs for the chr22 comparison

From: DNA sequences alignment in multi-GPUs: acceleration and energy payoff

No. GPUs

Stage 1

Stage 2

Stage 3

Total

Versus 2 GPUs

 
 

Average power (watts)

 

GCUPS/W

4

101.11 W

116.26 W

77.27 W

101.33 W

 

0.55

3

101.53 W

108.16 W

78.79 W

101.62 W

 

0.59

2

100.30 W

114.68 W

76.74 W

100.38 W

 

0.57

 

Execution time (seconds)

 

GCUPS

4

11161.92 s

185.20 s

14.25 s

11361.38 s

1.96x

224.59

3

14719.32 s

253.72 s

17.70 s

14990.76 s

1.49x

170.21

2

22080.04 s

159.77 s

23.17 s

22262.99 s

 

114.62

 

Energy consumption (kilojoules)

 

Cost

4

1128.63 kJ

21.53 kJ

1.10 kJ

4x 1151.27 kJ

1.03x

0.1660 €

3

1494.60 kJ

27.45 kJ

1.40 kJ

3x 1523.44 kJ

1.02x

0.1650 €

2

2214.77 kJ

18.32 kJ

1.78 kJ

2x 2234.88 kJ

 

0.1614 €

  1. We also compare performance and power consumption versus the execution on 2 GPUs