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Table 4 LDPC decoding time (second) versus SNR value (DVB-S2 short 2/5, frame 1,000,000)

From: Parallel LDPC decoding using CUDA and OpenMP

SNR CUDA & OpenMP Normal Only OpenMP Avg. iter. num
1 85.6 2097.5 616.9 26.5
1.5 59.3 1370.2 403.0 17.9
2 47.1 1013.5 307.1 13.5
2.5 40.6 788.0 246.3 107
3 35.3 646.6 208.6 8.8
3.5 30.0 533.9 172.2 7.3
4 27.5 447.9 149.3 6.2
4.5 25.7 382.2 127.4 5.3
5 24.7 325.9 108.6 4.6
5.5 22.3 283.6 97.8 4.0
6 23.6 245.4 87.6 3.5
6.5 21.5 217.6 80.6 3.1