Drop dependency on multiprocess, may fix #177
#1150
| Job | Run time |
|---|---|
| 2m 16s | |
| 44s | |
| 3m 4s | |
| 3m 2s | |
| 3m 21s | |
| 2m 55s | |
| 3m 50s | |
| 4m 24s | |
| 4m 35s | |
| 4m 54s | |
| 4m 49s | |
| 5m 25s | |
| 2m 47s | |
| 2m 16s | |
| 2m 15s | |
| 4m 46s | |
| 5m 5s | |
| 5m 3s | |
| 5m 33s | |
| 5m 18s | |
| 1h 16m 22s |