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#pragma once
#include "simulation/workloads/Workload.h"
#include "modeling/machine/CPU.h"
#include "modeling/machine/GPU.h"
#include <stdint.h>
#include <vector>
#include <memory>
namespace Modeling
{
// Defines the initial temperature of machine
constexpr float ROOM_TEMPERATURE_CELCIUS = 23.0f;
// Defines the usage of memory by the kernel
constexpr uint32_t KERNEL_MEMORY_USAGE_MB = 50;
/*
The Machine class models a physical machine in a rack. It has a speed, and can be given a workload on which it will work until finished or interrupted.
*/
class Machine
{
public:
/*
Initializes the machine as idle with the given speed.
*/
Machine(int id);
/*
Adds a cpu to the list of this machine.
*/
void addCPU(CPU cpu);
/*
Adds a cpu to the list of this machine.
*/
void addGPU(GPU gpu);
/*
Gives the task to this machine. If the machine is already busy this does nothing.
*/
void giveTask(Simulation::Workload* workload);
/*
Returns true if the machine is busy.
*/
bool isBusy() const;
/*
Does work on the given task and updates temperature and load appropriately.
*/
void work();
/*
Returns the id of the current workload of this machine.
*/
int getWorkloadId() const;
/*
Returns the id of this machine.
*/
int getId() const;
/*
Returns the temperature of this machine.
*/
float getTemperature() const;
/*
Returns the memory used by this machine.
*/
int getMemory() const;
/*
Returns the load fraction on this machine.
*/
float getLoad() const;
private:
// A list of cpus in this machine.
std::vector<CPU> cpus;
// A list of gpus in this machine.
std::vector<GPU> gpus;
// True if the machine is working on a task.
bool busy = false;
// The current workload the machine is working on.
Simulation::Workload* currentWorkload;
// Db id of this machine.
int id;
// Temperature of this machine.
float temperature = ROOM_TEMPERATURE_CELCIUS;
float maxTemperature = 80.0f;
float minTemperature = 0.0f;
float temperatureIncrease = 10.f;
// Memory used by this machine.
int memory = KERNEL_MEMORY_USAGE_MB;
// The fraction of load on this machine.
float load = 0.0f;
/*
Returns the speed of the machine.
*/
uint32_t getSpeed();
};
}
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