From: Fast reconstruction of 3D volumes from 2D CT projection data with GPUs
Dataset | Approach | Backprojection time | Total time | Speedup over MATLAB | Speedup over C |
---|---|---|---|---|---|
Phantom | MATLAB | 51.06 | 51.11 | – | – |
Phantom | C | 3.93 | 3.95 | 12.94 | – |
Phantom | C + OpenMP (4 threads) | 0.85 | 0.89 | 57.43 | 4.44 |
Phantom | OpenCL (NVIDIA) | 0.01 | 0.30 | 170.37 | 13.17 |
Phantom | CUDA (NVIDIA) | 0.01 | 0.30 | 170.37 | 13.17 |
Phantom | OpenCL (AMD) | 0.01 | 0.32 | 159.72 | 12.34 |
Mouse scan | MATLAB | 33760.40 | 33777.33 | – | – |
Mouse scan | MATLAB PCT | 22506.49 | 22513.90 | 1.5 | – |
Mouse scan | C | 18451.77 | 18462.60 | 1.83 | – |
Mouse scan | C + OpenMP | 5112.94 | 5615.65 | 6.01 | 3.29 |
Mouse scan | OpenCL (NVIDIA) | 49.44 | 60.45 | 558.76 | 305.42 |
Mouse scan | CUDA (NVIDIA) | 47.79 | 58.87 | 573.76 | 313.62 |
Mouse scan | OpenCL(AMD) | 16.01 | 28.02 | 1205.47 | 658.91 |