gpu-direct: make it optional and have fallback solution with device-host explicit transfers #823
| Job | Run time |
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| 26s | |
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| 25m 40s | |
| 33m 17s | |
| 1h 30m 17s | |
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| 4m 23s | |
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| 12m 23s | |
| 4m 8s | |
| 4m 40s | |
| 5m 26s | |
| 10m 47s | |
| 3m 2s | |
| 1m 10s | |
| 4m 18s | |
| 3m 5s | |
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| 11m 2s | |
| 1m 7s | |
| 4m 54s | |
| 29m 28s | |
| 15m 33s | |
| 12m 22s | |
| 8m 31s | |
| 5m 32s | |
| 33m 21s | |
| 7m 26s | |
| 7m 26s | |
| 3m 9s | |
| 2m 58s | |
| 7m 25s | |
| 7m 14s | |
| 13m 17s | |
| 24m 39s | |
| 7m 22s | |
| 9h 57m 35s |