Scientific Programming / 2015 / Article / Tab 3

Research Article

Performance of a Code Migration for the Simulation of Supersonic Ejector Flow to SMP, MIC, and GPU Using OpenMP, OpenMP+LEO, and OpenACC Directives

Table 3

Computing times and their corresponding speed-up factors obtained with HT enabled for the compact and scatter affinities. HT: hyper threading, V: vectorization, and A: activated.

Threads HT-A, V-A, compact HT-A V-A, scatter

1 43 h 22 m 22 s (1.00X) 43 h 19 m 58 s (1.00X)
2 27 h 17 m 46 s (1.59X) 24 h 05 m 16 s (1.80X)
3 21 h 38 m 07 (2.00X) 15 h 41 m 05 (2.76X)
4 14 h 37 m 51 s (2.96X) 12 h 15 m 17 s (3.54X)
5 12 h 12 m 27 s (3.55X) 11 h 18 m 27 s (3.83X)
6 11 h 44 m 25 s (3.69X) 08 h 55 m 26 s (4.86X)
7 11 h 36 m 13 s (3.74X) 07 h 46 m 44 s (5.57X)
8 10 h 15 m 49 s (4.23X) 07 h 21 m 59 s (5.88X)
9 09 h 49 m 17 s (4.42X) 06 h 31 m 26 s (6.64X)
10 9 h 51 m 28 s (4.40X) 06 h 16 m 28 s (6.91X)
11 09 h 26 m 09 s (4.60X) 05 h 33 m 41 s (7.79X)
12 09 h 27 m 33 s (4.59X) 06 h 03 m 58 s (7.14X)
13 09 h 01 m 54 s (4.8X) 06 h 29 m 24 s (6.68X)
14 08 h 37 m 13 s (5.03X) 07 h 01 m 00 s (6.18X)
15 08 h 12 m 43 s (5.28X) 06 h 27 m 47 s (6.70X)
16 07 h 56 m 28 s (5.46X) 06 h 31 m 54 s (6.63X)
17 07 h 35 m 52 s (5.71X) 06 h 26 m 55 s (6.72X)
18 07 h 27 m 38 s (5.81X) 06 h 35 m 04 s (6.58X)
19 07 h 09 m 47 s (6.06X) 06 h 20 m 00 s (6.84X)
20 06 h 26 m 38 s (6.73X) 06 h 19 m 51 s (6.84X)
21 06 h 18 m 32 s (6.87X) 06 h 12 m 58 s (6.97X)
22 06 h 00 m 01 s (7.23X) 06 h 20 m 40 s (6.83X)
23 05 h 51 m 48 s (7.40X) 06 h 24 m 12 s (6.77X)
24 05 h 51 m 49 s (7.40X) 06 h 27 m 04 s (6.72X)

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