Ejemplo n.º 1
0
func applyBloodBankDiscipline(sys *BloodBankSystem, queue *qsim.Queue, trashProcessor, transfusionProcessor *qsim.Processor) {
	// Assigns the youngest unit to the processor
	assigner := func(cbProc *qsim.Processor, cbJob *qsim.Job) {
		var i, iYoungest int
		var j *qsim.Job
		if queue.Length() == 0 {
			qsim.D("Aborted after Job", cbJob)
			if sys.statsStarted {
				sys.NumAborted++
			}
			// Give the processor a dummy job until the next transfusion
			j = qsim.NewJob(-1)
			cbProc.Start(j)
			return
		}
		for i, j = range queue.Jobs {
			if j.ArrTime > queue.Jobs[iYoungest].ArrTime {
				iYoungest = i
			}
		}
		j = queue.Jobs[iYoungest]
		queue.Remove(j)
		cbProc.Start(j)
		qsim.D("Started Job", j)
	}

	transfusionProcessor.AfterFinish(assigner)
}
Ejemplo n.º 2
0
// Occupancy returns the total number of Jobs in the system.
func (sys *PortaPottySystem) Occupancy() (occ int) {
	var p *qsim.Processor
	var q *qsim.Queue
	for _, p = range sys.processors {
		if !p.IsIdle() {
			occ++
		}
	}
	for _, q = range sys.queues {
		occ += q.Length()
	}
	return
}
Ejemplo n.º 3
0
// strategicAssignment returns an Assignment corresponding to the following
// wait-time reduction strategy:
//
// – Look for the shortest queue first. If there are multiple queues of the
//   same short length, then
// – Pick the queue with the highest male-to-female ratio. If there are
//   multiple short queues with the same male-to-female ratio, then
// – Pick a random one.
func (sys *PortaPottySystem) strategicAssignment() *qsim.Assignment {
	var p *qsim.Processor
	var q *qsim.Queue
	var shortQueues, dudefulQueues []*qsim.Queue
	var j *qsim.Job
	var shortestLen, maleCount, highestMaleCount int
	shortestLen = 9999

	// If there's an idle porta-potty, obviously just walk in
	for _, p = range sys.processors {
		if p.IsIdle() {
			return nil
		}
	}

	for _, q = range sys.queues {
		if q.Length() < shortestLen {
			shortQueues = []*qsim.Queue{q}
			shortestLen = q.Length()
		} else if q.Length() == shortestLen {
			shortQueues = append(shortQueues, q)
		}
	}

	for _, q = range shortQueues {
		maleCount = 0
		for _, j = range q.Jobs {
			if j.StrAttrs["sex"] == "male" {
				maleCount++
			}
		}
		if maleCount > highestMaleCount {
			dudefulQueues = []*qsim.Queue{q}
			highestMaleCount = maleCount
		} else if maleCount == highestMaleCount {
			dudefulQueues = append(dudefulQueues, q)
		}
	}

	return &qsim.Assignment{
		Type:  "Queue",
		Queue: dudefulQueues[rand.Intn(len(dudefulQueues))],
	}
}