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Resolved merge conflicts with the master. Also, added TODO in README to use Go1.8 techniques.

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This commit is contained in:
Pradyumna Kaushik 2017-04-21 17:17:22 -04:00
commit 1b15bb14e7
24 changed files with 122 additions and 101 deletions
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29
schedulers/bottomHeavy.go
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@ -17,12 +17,12 @@ import (
)
/*
Tasks are categorized into small and large tasks based on the watts requirement.
All the small tasks are packed into offers from agents belonging to power class C and power class D, using BinPacking.
All the large tasks are spread among the offers from agents belonging to power class A and power class B, using FirstFit.
Tasks are categorized into small and large tasks based on watts requirements.
All the large tasks are packed into offers from agents belonging to power classes A and B, using Bin-Packing.
All the small tasks are spread among offers from agents belonging to power class C and D, using First-Fit.
BinPacking has the most effect when co-scheduling of tasks is increased. Large tasks typically utilize more resources and hence,
co-scheduling them has a great impact on the total power utilization.
Bin-Packing has the most effect when co-scheduling of tasks is increased. Large tasks typically utilize more resources and hence,
co-scheduling them has a great impact on the total power utilization.
*/
func (s *BottomHeavy) takeOfferBinPack(offer *mesos.Offer, totalCPU, totalRAM, totalWatts,
@ -174,7 +174,7 @@ func (s *BottomHeavy) createTaskInfoAndLogSchedTrace(offer *mesos.Offer, task de
return taskToSchedule
}
// Using BinPacking to pack small tasks into this offer.
// Using BinPacking to pack large tasks into the given offers.
func (s *BottomHeavy) pack(offers []*mesos.Offer, driver sched.SchedulerDriver) {
for _, offer := range offers {
select {
@ -236,7 +236,7 @@ func (s *BottomHeavy) pack(offers []*mesos.Offer, driver sched.SchedulerDriver)
}
}
// Using first fit to spread large tasks into these offers.
// Using First-Fit to spread small tasks among the given offers.
func (s *BottomHeavy) spread(offers []*mesos.Offer, driver sched.SchedulerDriver) {
for _, offer := range offers {
select {
@ -297,6 +297,7 @@ func (s *BottomHeavy) ResourceOffers(driver sched.SchedulerDriver, offers []*mes
offersLightPowerClasses := []*mesos.Offer{}
for _, offer := range offers {
offerUtils.UpdateEnvironment(offer)
select {
case <-s.Shutdown:
log.Println("Done scheduling tasks: declining offer on [", offer.GetHostname(), "]")
@ -307,13 +308,19 @@ func (s *BottomHeavy) ResourceOffers(driver sched.SchedulerDriver, offers []*mes
default:
}
if constants.PowerClasses["A"][*offer.Hostname] ||
constants.PowerClasses["B"][*offer.Hostname] {
if _, ok := constants.PowerClasses["A"][*offer.Hostname]; ok {
offersHeavyPowerClasses = append(offersHeavyPowerClasses, offer)
} else if constants.PowerClasses["C"][*offer.Hostname] ||
constants.PowerClasses["D"][*offer.Hostname] {
}
if _, ok := constants.PowerClasses["B"][*offer.Hostname]; ok {
offersHeavyPowerClasses = append(offersHeavyPowerClasses, offer)
}
if _, ok := constants.PowerClasses["C"][*offer.Hostname]; ok {
offersLightPowerClasses = append(offersLightPowerClasses, offer)
}
if _, ok := constants.PowerClasses["D"][*offer.Hostname]; ok {
offersLightPowerClasses = append(offersLightPowerClasses, offer)
}
}
log.Println("Packing Large tasks into ClassAB offers:")