Table 6.
Autotuning for reconstructing single-slice, dual-slice, and phase-contrast flow MRI acquisitions. N = 160 for all datasets results in a grid size of 4862.
| Single-slice anatomic MRI | ||||||
|---|---|---|---|---|---|---|
| Worst configuration | Best configuration | |||||
| Frames | Threads | GPUs/thread | Fps | Threads | GPUs/thread | Fps |
| 5 | 2 | 4 | 1.9 | 1 | 2 | 3.7 |
| 10 | 2 | 4 | 3.0 | 1 | 2 | 5.0 |
| 25 | 1 | 1 | 4.7 | 2 | 2 | 7.7 |
| 50 | 1 | 1 | 4.9 | 3 | 2 | 11.0 |
| 200 | 1 | 1 | 4.9 | 3 | 2 | 18.1 |
|
| ||||||
| Dual-slice anatomic MRI | ||||||
| Worst configuration | Best configuration | |||||
| Frames | Threads | GPUs/thread | Fps | Threads | GPUs/thread | Fps |
|
| ||||||
| 5 | 2 | 4 | 3.2 | 2 | 1 | 5.9 |
| 10 | 1 | 1 | 4.6 | 2 | 2 | 8.0 |
| 25 | 1 | 1 | 5.0 | 4 | 2 | 12.3 |
| 50 | 1 | 1 | 5.1 | 4 | 2 | 18.4 |
| 200 | 1 | 1 | 5.1 | 4 | 2 | 28.1 |
|
| ||||||
| Phase-contrast flow MRI | ||||||
| Worst configuration | Best configuration | |||||
| Frames | Threads | GPUs/thread | Fps | Threads | GPUs/thread | Fps |
|
| ||||||
| 5 | 2 | 4 | 1.6 | 2 | 1 | 2.6 |
| 10 | 1 | 1 | 1.8 | 2 | 2 | 3.6 |
| 25 | 1 | 1 | 1.9 | 4 | 2 | 5.8 |
| 50 | 1 | 1 | 1.9 | 4 | 2 | 7.5 |
| 200 | 1 | 1 | 1.9 | 4 | 2 | 10.7 |