[fix] Stabilize MPI tests and prevent hangs #4256
| Job | Run time |
|---|---|
| 1m 7s | |
| 2m 9s | |
| 2m 28s | |
| 2m 51s | |
| 2m 34s | |
| 1m 46s | |
| 3m 19s | |
| 2m 13s | |
| 2m 40s | |
| 3m 33s | |
| 4m 3s | |
| 3m 58s | |
| 8m 21s | |
| 8m 49s | |
| 8m 28s | |
| 3m 26s | |
| 8m 25s | |
| 4m 59s | |
| 5m 20s | |
| 3m 14s | |
| 3m 3s | |
| 2m 58s | |
| 3m 18s | |
| 2m 38s | |
| 2m 52s | |
| 4m 34s | |
| 4m 32s | |
| 4m 40s | |
| 4m 34s | |
| 7m 24s | |
| 1m 34s | |
| 1m 55s | |
| 1m 41s | |
| 17s | |
| 56s | |
| 0s | |
| 2h 10m 39s |