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elektron/schedulers/README.md
Pradyumna Kaushik b815d65910 Add another category called Capping Strategies.
2017-01-31 16:29:06 -05:00

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Electron: Scheduling Algorithms

To Do:

  • Design changes -- Possible to have one scheduler with different scheduling schemes?
  • Fix the race condition on 'tasksRunning' in proactiveclusterwidecappingfcfs.go and proactiveclusterwidecappingranked.go
  • Separate the capping strategies from the scheduling algorithms and make it possible to use any capping strategy with any scheduler.
  • Make newTask(...) variadic where the newTaskClass argument can either be given or not. If not give, then pick task.Watts as the watts attribute, else pick task.ClassToWatts[newTaskClass].
  • Retrofit pcp/proactiveclusterwidecappers.go to include the power capping go routines and to cap only when necessary.
  • Create a package that would contain routines to perform various logging and move helpers.coLocated(...) into that.
  • Retrofit schedulers to be able to run either using ClassMapWatts enabled or disabled.

Scheduling Algorithms:

  • First Fit
  • First Fit with sorted watts
  • Bin-packing with sorted watts
  • ClassMapWatts -- Bin-packing and First Fit that now use Watts per power class.
  • Top Heavy -- Hybrid scheduler that packs small tasks (less power intensive) using Bin-packing and spreads large tasks (power intensive) using First Fit.
  • Bottom Heavy -- Hybrid scheduler that packs large tasks (power intensive) using Bin-packing and spreads small tasks (less power intensive) using First Fit.

Capping Strategies

  • Extrema Dynamic Capping
  • Proactive Cluster-wide Capping
  • Piston Capping