public static List <AllocOutput> GetAllocations(AllocInput allocInput)
{
List <AllocOutput> allocations = new List <AllocOutput>();
Allocation newAllocation = new Allocation(allocInput.Tasks.Count, allocInput.Processors, allocInput.Coefficients);
var grid = new Grid(allocInput.Tasks, allocInput.Processors, allocInput.RefFrequency);
while (!newAllocation.IsDone)
{
TaskAssignment newTaskAssignment = new TaskAssignment(grid);
var taskRuntime = grid.Content[newTaskAssignment.TaskId][newTaskAssignment.ProcessorId];
newAllocation.AssignTaskToProcessor(newTaskAssignment.TaskId, newTaskAssignment.ProcessorId, taskRuntime);
grid.UpdateProcessorRuntime(newTaskAssignment.ProcessorId, grid.GetRuntime(newTaskAssignment.TaskId, newTaskAssignment.ProcessorId));
grid.RemoveRow(newTaskAssignment.TaskId);
}
var allocOutput = new AllocOutput((allocations.Count + 1).ToString(), 0, newAllocation.EnergyConsumed, newAllocation.Processors);
allocations.Add(allocOutput);
return(allocations);
}
public static List <AllocOutput> GetAllocations(AllocInput allocInput)
{
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
List <AllocOutput> allocations = new List <AllocOutput>();
uint trialCount = 0;
while (stopWatch.ElapsedMilliseconds < MAX_DURATION_MS && allocations.Count < MAX_ALLOCATIONS)
{
Allocation newAllocation = new Allocation(allocInput.Tasks.Count, allocInput.Processors, allocInput.Coefficients);
var unassignedTasks = new Dictionary <string, float>(allocInput.Tasks);
var processorRuntimes = new Dictionary <string, float>();
var shouldStopAllocating = false;
while (!newAllocation.IsDone && !shouldStopAllocating)
{
var availableProcessors = new Dictionary <string, float>(allocInput.Processors);
string longestRuntimeTaskId;
string hiqhestFreqProcessorId;
float taskRuntime;
do
{
longestRuntimeTaskId = unassignedTasks.Aggregate((x, y) => x.Value > y.Value ? x : y).Key;
hiqhestFreqProcessorId = availableProcessors.Aggregate((x, y) => x.Value > y.Value ? x : y).Key;
taskRuntime = unassignedTasks[longestRuntimeTaskId] * (allocInput.RefFrequency / availableProcessors[hiqhestFreqProcessorId]);
availableProcessors.Remove(hiqhestFreqProcessorId);
if (!processorRuntimes.ContainsKey(hiqhestFreqProcessorId))
{
processorRuntimes.Add(hiqhestFreqProcessorId, 0);
}
} while ((processorRuntimes[hiqhestFreqProcessorId] + taskRuntime) > (allocInput.MaxDuration - (trialCount * TIME_STEP)) && availableProcessors.Count != 0);
if (!String.IsNullOrEmpty(hiqhestFreqProcessorId))
{
newAllocation.AssignTaskToProcessor(longestRuntimeTaskId, hiqhestFreqProcessorId, taskRuntime);
processorRuntimes[hiqhestFreqProcessorId] += taskRuntime;
unassignedTasks.Remove(longestRuntimeTaskId);
}
else
{
shouldStopAllocating = true;
}
}
float programRuntime = processorRuntimes.Max((x) => x.Value);
if (newAllocation.IsDone && programRuntime <= allocInput.MaxDuration)
{
AllocOutput allocOutput = new AllocOutput((allocations.Count + 1).ToString(), programRuntime, newAllocation.EnergyConsumed, newAllocation.Processors);
bool isAllocationUnique = true;
// Check if the same allocation already exists
foreach (var allocation in allocations)
{
if (allocation.GetUniqueId() == allocOutput.GetUniqueId())
{
isAllocationUnique = false;
}
}
if (isAllocationUnique)
{
allocations.Add(allocOutput);
}
}
trialCount += 1;
}
return(allocations.ToList());
}
