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#pragma once
#include "Scheduler.h"
#include <algorithm>
namespace Simulation
{
class FirstInFirstOutScheduler : public Scheduler
{
protected:
~FirstInFirstOutScheduler()
{
}
public:
/**
* \brief Distribute workloads according to the FIFO principle.
*/
void schedule(std::vector<std::reference_wrapper<Modeling::Machine>>& machines, std::vector<Workload*> workloads) override
{
if (workloads.size() == 0)
return;
// Find the first workload with dependencies finished
int index = 0;
std::remove_if(workloads.begin(), workloads.end(), [](Workload* workload) {
return !workload->dependencyFinished;
});
// Reset the number of cores used for each workload
for (auto workload : workloads)
{
workload->setCoresUsed(0);
}
// Distribute tasks across machines and set cores used of workloads
for (auto machine : machines)
{
machine.get().giveTask(workloads.at(index));
workloads.at(index)->setCoresUsed(
workloads.at(index)->getCoresUsed() + machine.get().getNumberOfCores()
);
if (!workloads.at(index)->isParallelizable())
{
workloads.erase(workloads.begin() + index);
if (workloads.size() == 0)
break;
index %= workloads.size();
}
else
{
index = (++index) % workloads.size();
}
}
}
};
}
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