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Table 1 LDPC decoding time (second) versus block size (CMMB 1/2, frame 10,000)

From: Parallel LDPC decoding using CUDA and OpenMP

SNR

Block size

 

8

16

32

64

128

256

Avg. iter. num

1

224.5

170.0

146.3

142.3

142.6

149.2

93.3

1.5

45.8

37.1

30.8

29.6

30.5

31.5

18.0

2

2.7

22.4

18.9

18.0

18.8

19.5

10.3

2.5

21.3

17.5

14.8

14.2

14.8

15.2

7.5

3

17.6

14.5

12.5

12.0

12.5

12.8

5.9

3.5

15.3

12.8

10.9

10.6

11.0

11.3

4.9

4

13.5

11.3

9.8

9.6

9.8

10.0

4.1

Total

365.9

285.5

244.0

236.3

240.0

249.6