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Made classMapWatts a commandLine option where one can enable and disable mapping of watts to powerclasses when accepting offers from Mesos. Removed the schedulers that were created solely for the classMapWatts feature. Retrofitted all schedulers to use the powerClass mapped watts attribute for a task, if classMapWatts has been enabled. Removed unnecessary functions and variables from constants.go. Removed unnecessary functions from utilities/utils.go. Fixed operator precendence issue with takeOffer(...) in some of the schedulers. Added TODO to decouple capping strategies from the schedulers completely. Added TODO to move all the common struct attributes in the schedulers into base.go.

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Pradyumna Kaushik 2017-02-09 18:05:38 -05:00
parent a2b50dd313
commit fdcb401447
28 changed files with 686 additions and 2094 deletions
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schedulers/README.md
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@ -5,18 +5,16 @@ 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.
* **Critical**: Separate the capping strategies from the scheduling algorithms and make it possible to use any capping strategy with any scheduler.
* 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.
* Move all the common struct members from all schedulers into base.go.
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.
* BinPacked-MaxMin -- Packing one large task with a bunch of small tasks.
* 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.