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The workflow schedulers (Basic, Multi-HEFT, Multi-AgingHEFT and FOFT) use
information provided by the SeD s to be able to run the HEFT heuristic. So
the SeD programmer must provide the required data in the estimation vector by
implementing a plugin scheduler (see chapter 8).
The following fields in the estimation vector must be filled in:
- The TCOMP field must contain the estimation of the computation
time for the job (in milliseconds). This can be done using the
diet_estimate_comptime(estVector_t ev, double value) method
within the performance evaluation function.
- The EFT field must contain the estimation of the earliest finish
time (in milliseconds from the time of the current submit request) for the
job. To compute this value, the SeD programmer can use the API method
diet_estimate_eft(...) to retrieve the estimated value of
earliest finish time for a new job.
The DIET Team - Ven 18 nov 2011 18:13:39 PST