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Migration Time and Migration Energy #136

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Migration Time and Migration Energy #136

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439d63e
Migration Time and Migration Energy
Sabir97 Mar 4, 2020
085310b
Update PowerDatacenter.java
Sabir97 Mar 4, 2020
22b0e3c
Update PowerDatacenter.java
Sabir97 Mar 4, 2020
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34 changes: 34 additions & 0 deletions modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,12 @@ public class PowerDatacenter extends Datacenter {

/** The VM migration count. */
private int migrationCount;

// Migration Time
public double Tmigr = 0;

// Migration Energy
public double Emigr;

/**
* Instantiates a new PowerDatacenter.
Expand Down Expand Up @@ -84,6 +90,8 @@ protected void updateCloudletProcessing() {
return;
}
double currentTime = CloudSim.clock();
double Pm = 4.5; // VMs communication energy unit
double sum = 0;

// if some time passed since last processing
if (currentTime > getLastProcessTime()) {
Expand All @@ -100,6 +108,13 @@ protected void updateCloudletProcessing() {
Vm vm = (Vm) migrate.get("vm");
PowerHost targetHost = (PowerHost) migrate.get("host");
PowerHost oldHost = (PowerHost) vm.getHost();

// Calculates migration time and energy
double Cj = vm.getRam();
double BWj = vm.getBw();
Tmigr = Tmigr + Cj/BWj;
sum = sum + Pm*(Cj/BWj);
Emigr = 4*sum;

if (oldHost == null) {
Log.formatLine(
Expand Down Expand Up @@ -140,6 +155,8 @@ protected void updateCloudletProcessing() {

setLastProcessTime(currentTime);
}
setMigrationTime(Tmigr); // Update Total Migration Time
setMigrationEnergy(Emigr); // Update Total Migration Energy
}

/**
Expand Down Expand Up @@ -355,5 +372,22 @@ protected void setMigrationCount(int migrationCount) {
protected void incrementMigrationCount() {
setMigrationCount(getMigrationCount() + 1);
}

// sets migration time
public void setMigrationTime(double Tm){
Tmigr = Tm;
}
//gets migration time
public double getMigrationTime(){
return Tmigr;
}
//sets migration Energy
public void setMigrationEnergy(double Em){
Emigr = Em;
}
//gets total migration energy
public double getMigrationEnergy(){
return Emigr;
}

}