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The accounting on the HPCF is currently based on the total elapsed time for which cores are used. With that, the HPCF unit of account, the System Billing Unit, or SBU, for both serial and parallel jobs is defined as follows.
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SBU = P * ( ELAPSED_TIME )N * T |
where:
| P = 117602602 / (2000 * 128 * 86400) | is a fixed proportionality factor, adjusted so that one cluster will deliver 117,602,602 units per day on a "typical" |
| N | Is the number of (physical) cores allocated to a job. |
| TELAPSED_TIME | is the elapsed time (real time in seconds) recorded for a job, multiplied by the number of cores used by the job. |
Examples:
- A serial job using 1 hour (3600 seconds) of elapsed time will be charged about 19.14 SBU.
- A parallel job requesting 2 nodes, running for 3 hours elapsed time will be charged 14700.32 SBU.
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