Add contiguous attribute for arrays passed to c functions
#647
| Job | Run time |
|---|---|
| 3m 32s | |
| 2m 7s | |
| 3m 13s | |
| 1m 45s | |
| 2m 5s | |
| 4m 50s | |
| 2m 22s | |
| 1m 57s | |
| 2m 35s | |
| 2m 22s | |
| 26m 48s |