| | 1 | = Credit notes = |
| | 2 | |
| | 3 | Some random notes about credit. |
| | 4 | |
| | 5 | == Inconsistent goals == |
| | 6 | |
| | 7 | Consider these goals: |
| | 8 | |
| | 9 | * Project neutrality: a given host should get the same credit/day from any project. |
| | 10 | * Device neutrality: a given job should get the same credit on different hosts. |
| | 11 | |
| | 12 | Consider the following scenario: |
| | 13 | |
| | 14 | * Two projects and two hosts |
| | 15 | * Host A runs both projects' jobs in 1 hour. |
| | 16 | * Host B runs project 1's jobs in 1 hour, and project 2's job in 2 hours. |
| | 17 | |
| | 18 | Project neutrality says that both projects must grant host A the same credit per job. |
| | 19 | Then device neutrality says that both projects must grant host B the same credit per job. |
| | 20 | But that violates project neutrality for host B. |
| | 21 | |
| | 22 | So the two goals are inconsistent; we can't satisfy them both. |
| | 23 | |
