@Override
protected void processVmCreate(SimEvent ev) {
int[] data = (int[]) ev.getData();
int result = data[2];
if (result != CloudSimTags.TRUE) {
int datacenterId = data[0];
int vmId = data[1];
System.out.println(
CloudSim.clock()
+ ": "
+ getName()
+ ": Creation of VM #"
+ vmId
+ " failed in Datacenter #"
+ datacenterId);
System.exit(0);
}
super.processVmCreate(ev);
}
/*
* (non-Javadoc)
* @see org.cloudbus.cloudsim.VmAllocationPolicy#allocateHostForVm(org.cloudbus.cloudsim.Vm,
* org.cloudbus.cloudsim.Host)
*/
@Override
public boolean allocateHostForVm(Vm vm, Host host) {
if (host == null) {
Log.formatLine("%.2f: No suitable host found for VM #" + vm.getId() + "\n", CloudSim.clock());
return false;
}
if (host.vmCreate(vm)) { // if vm has been succesfully created in the host
getVmTable().put(vm.getUid(), host);
/*
* update host cache pain information
* in CacheMatrix.HOST_PAIN_LIST
*/
CacheMatrix.update_host_pain_add_vm(vm, host);
/*
* end update host cache pain information
*/
Log.formatLine(
"%.2f: VM #" + vm.getId() + " has been allocated to the host #" + host.getId(),
CloudSim.clock());
return true;
}
Log.formatLine(
"%.2f: Creation of VM #" + vm.getId() + " on the host #" + host.getId() + " failed\n",
CloudSim.clock());
return false;
}
/**
* Process a request for the characteristics of a PowerDatacenter.
*
* @param ev a SimEvent object
* @pre ev != $null
* @post $none
*/
@Override
protected void processResourceCharacteristicsRequest(SimEvent ev) {
setDatacenterCharacteristicsList(new HashMap<>());
Log.printLine(
CloudSim.clock()
+ ": "
+ getName()
+ ": Cloud Resource List received with "
+ getDatacenterIdsList().size()
+ " resource(s)");
for (Integer datacenterId : getDatacenterIdsList()) {
sendNow(datacenterId, CloudSimTags.RESOURCE_CHARACTERISTICS, getId());
}
}
/**
* Updates the processing of cloudlets running on this VM.
*
* @param currentTime current simulation time
* @param mipsShare array with MIPS share of each Pe available to the scheduler
* @return time predicted completion time of the earliest finishing cloudlet, or 0 if there is no
* next events
* @pre currentTime >= 0
* @post $none
*/
@Override
public double updateVmProcessing(final double currentTime, final List<Double> mipsShare) {
double time = super.updateVmProcessing(currentTime, mipsShare);
double schedulerPerviousTime = getCloudletScheduler().getPreviousTime();
double utilization = getTotalUtilizationOfCpu(schedulerPerviousTime);
double ramUtilization = getCloudletScheduler().getTotalUtilizationOfRam(schedulerPerviousTime);
double bwUtilization = getCloudletScheduler().getTotalUtilizationOfBw(schedulerPerviousTime);
if (currentTime > getPreviousTime() && (currentTime - 0.1) % getSchedulingInterval() == 0) {
// double utilization = getTotalUtilizationOfCpu(getCloudletScheduler().getPreviousTime());
if (CloudSim.clock() != 0 || utilization != 0) {
addUtilizationHistoryValue(utilization);
addRamUtilizationHistoryValue(ramUtilization);
addBwUtilizationHistoryValue(bwUtilization);
}
}
return time;
}
/**
* Resumes execution of a paused cloudlet.
*
* @param cloudletId ID of the cloudlet being resumed
* @return $true if the cloudlet was resumed, $false otherwise
* @pre $none
* @post $none
*/
@Override
public double cloudletResume(int cloudletId) {
boolean found = false;
int position = 0;
// look for the cloudlet in the paused list
for (ResCloudlet rcl : getCloudletPausedList()) {
if (rcl.getCloudletId() == cloudletId) {
found = true;
break;
}
position++;
}
if (found) {
ResCloudlet rcl = getCloudletPausedList().remove(position);
// it can go to the exec list
if ((currentCpus - usedPes) >= rcl.getNumberOfPes()) {
rcl.setCloudletStatus(Cloudlet.INEXEC);
for (int i = 0; i < rcl.getNumberOfPes(); i++) {
rcl.setMachineAndPeId(0, i);
}
long size = rcl.getRemainingCloudletLength();
size *= rcl.getNumberOfPes();
rcl.getCloudlet().setCloudletLength(size);
getCloudletExecList().add(rcl);
usedPes += rcl.getNumberOfPes();
// calculate the expected time for cloudlet completion
double capacity = 0.0;
int cpus = 0;
for (Double mips : getCurrentMipsShare()) {
capacity += mips;
if (mips > 0) {
cpus++;
}
}
currentCpus = cpus;
capacity /= cpus;
long remainingLength = rcl.getRemainingCloudletLength();
double estimatedFinishTime =
CloudSim.clock() + (remainingLength / (capacity * rcl.getNumberOfPes()));
return estimatedFinishTime;
} else { // no enough free PEs: go to the waiting queue
rcl.setCloudletStatus(Cloudlet.QUEUED);
long size = rcl.getRemainingCloudletLength();
size *= rcl.getNumberOfPes();
rcl.getCloudlet().setCloudletLength(size);
getCloudletWaitingList().add(rcl);
return 0.0;
}
}
// not found in the paused list: either it is in in the queue, executing or not exist
return 0.0;
}
/**
* Process the ack received due to a request for VM creation.
*
* @param ev a SimEvent object
* @pre ev != null
* @post $none
*/
@Override
protected void processVmCreate(SimEvent ev) {
int[] data = (int[]) ev.getData();
int datacenterId = data[0];
int vmId = data[1];
int result = data[2];
if (result == CloudSimTags.TRUE) {
getVmsToDatacentersMap().put(vmId, datacenterId);
/** Fix a bug of cloudsim Don't add a null to getVmsCreatedList() June 15, 2013 */
if (VmList.getById(getVmList(), vmId) != null) {
getVmsCreatedList().add(VmList.getById(getVmList(), vmId));
Log.printLine(
CloudSim.clock()
+ ": "
+ getName()
+ ": VM #"
+ vmId
+ " has been created in Datacenter #"
+ datacenterId
+ ", Host #"
+ VmList.getById(getVmsCreatedList(), vmId).getHost().getId());
}
} else {
Log.printLine(
CloudSim.clock()
+ ": "
+ getName()
+ ": Creation of VM #"
+ vmId
+ " failed in Datacenter #"
+ datacenterId);
}
incrementVmsAcks();
// all the requested VMs have been created
if (getVmsCreatedList().size() == getVmList().size() - getVmsDestroyed()) {
submitCloudlets();
} else {
// all the acks received, but some VMs were not created
if (getVmsRequested() == getVmsAcks()) {
// find id of the next datacenter that has not been tried
for (int nextDatacenterId : getDatacenterIdsList()) {
if (!getDatacenterRequestedIdsList().contains(nextDatacenterId)) {
createVmsInDatacenter(nextDatacenterId);
return;
}
}
// all datacenters already queried
if (getVmsCreatedList().size() > 0) { // if some vm were created
submitCloudlets();
} else { // no vms created. abort
Log.printLine(
CloudSim.clock()
+ ": "
+ getName()
+ ": none of the required VMs could be created. Aborting");
finishExecution();
}
}
}
}
