/**
* Finalises all relevant information before <tt>exiting</tt> the GridResource entity. This method
* sets the final data of:
*
* <ul>
* <li>wall clock time, i.e. the time of this Gridlet resides in a GridResource (from arrival
* time until departure time).
* <li>actual CPU time, i.e. the total execution time of this Gridlet in a GridResource.
* <li>Gridlet's finished so far
* </ul>
*
* @pre $none
* @post $none
*/
public void finalizeGridlet() {
// Sets the wall clock time and actual CPU time
double wallClockTime = GridSim.clock() - arrivalTime;
gridlet.setExecParam(wallClockTime, totalCompletionTime);
double finished = 0;
if (gridlet.getGridletLength() < finishedSoFar) {
finished = gridlet.getGridletLength();
} else {
finished = finishedSoFar;
}
gridlet.setGridletFinishedSoFar(finished);
}
/** This method will show you how to create Gridlets */
private void createGridlet(int userID, int numGridlet, int[] data) {
int k = 0;
for (int i = 0; i < numGridlet; i++) {
if (k == data.length) {
k = 0;
}
// Creates a Gridlet
Gridlet gl = new Gridlet(i, data[k], data[k], data[k]);
gl.setUserID(userID);
this.list_.add(gl);
k++;
}
}
public GridletReply askGridletStatusToAgent(int dst_agentID, int dst_resID, Gridlet gridlet) {
GridletRequest request =
new GridletRequest(this.get_id(), this.get_id(), dst_agentID, dst_resID, gridlet);
int requestID = request.getRequestID();
int reqrepID = request.getReqrepID();
super.send(
super.output,
GridSimTags.SCHEDULE_NOW,
Tags.GRIDLET_STATUS_REQ,
new IO_data(request, gridlet.getGridletFileSize(), request.getDst_agentID()));
Sim_type_p ptag = new Sim_type_p(Tags.GRIDLET_STATUS_REP);
Sim_event ev = new Sim_event();
super.sim_get_next(ptag, ev); // only look for this type of ack
GridletReply gridletReply = GridletReply.get_data(ev);
Assert.assertEquals(requestID, gridletReply.getRequestID());
Assert.assertEquals(Tags.GRIDLET_STATUS_REQ, gridletReply.getRequestTAG());
Assert.assertEquals(Tags.GRIDLET_STATUS_REP, ev.get_tag());
double evrecv_time = GridSim.clock();
String msg =
String.format(
"%1$f %2$d %3$s <-- GOT GRIDLET_STATUS_REP for Gridlet %4$d of Gridlet %5$d with status %6$d",
evrecv_time,
reqrepID,
this.get_name(),
gridletReply.getReceivedGridlet().getGridletID(),
gridletReply.getRequest().getGridlet().getGridletID(),
gridletReply.getRequest().getGridlet().getGridletStatus());
this.write(msg);
return gridletReply;
}
/**
* Sets the Gridlet status.
*
* @param status the Gridlet status
* @return <code>true</code> if the new status has been set, <code>false</code> otherwise
* @pre status >= 0
* @post $none
*/
public boolean setStatus(int status) {
// gets Gridlet's previous status
int prevStatus = gridlet.getGridletStatus();
// if the status of a Gridlet is the same as last time, then ignore
if (prevStatus == status) {
return false;
}
boolean success = true;
try {
double clock = GridSim.clock(); // gets the current clock
// sets Gridlet's current status
try {
gridlet.setGridletStatus(status);
} catch (Exception e) {
// It should not happen
}
// if a previous Gridlet status is INEXEC
if (prevStatus == Gridlet.INEXEC) {
// and current status is either CANCELED, PAUSED or SUCCESS
if (status == Gridlet.CANCELED || status == Gridlet.PAUSED || status == Gridlet.SUCCESS) {
// then update the Gridlet completion time
totalCompletionTime += (clock - startExecTime);
return true;
}
}
if (prevStatus == Gridlet.RESUMED && status == Gridlet.SUCCESS) {
// then update the Gridlet completion time
totalCompletionTime += (clock - startExecTime);
return true;
}
// if a Gridlet is now in execution
if (status == Gridlet.INEXEC || (prevStatus == Gridlet.PAUSED && status == Gridlet.RESUMED)) {
startExecTime = clock;
gridlet.setExecStartTime(startExecTime);
}
} catch (IllegalArgumentException e) {
success = false;
}
return success;
}
/**
* Creates a String representation of this Gridlet for displaying purposes
*
* @param timeUnit the time unit to be used
* @return a string
* @see ScheduleItem#TIME_UNIT_SECOND
* @see ScheduleItem#TIME_UNIT_MINUTE
* @see ScheduleItem#TIME_UNIT_HOUR
*/
public String toString(int timeUnit) {
String timeDescr = " " + getTimeDescr(timeUnit);
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append("Gridlet ID: " + gridlet.getGridletID());
stringBuilder.append("\nUser ID: " + gridlet.getUserID());
stringBuilder.append("\nStatus: " + Gridlet.getStatusString(gridlet.getGridletStatus()));
stringBuilder.append("\nSub. Time: " + formatTime(getSubmissionTime(), timeUnit) + timeDescr);
stringBuilder.append("\nStart Time: " + formatTime(startTime, timeUnit) + timeDescr);
stringBuilder.append(
"\nExp. Finish Time: " + formatTime(expectedFinishTime, timeUnit) + timeDescr);
stringBuilder.append("\nFinish Time: " + formatTime(actualFinishTime, timeUnit) + timeDescr);
stringBuilder.append(
"\nDuration: " + formatTime(actualFinishTime - startTime, timeUnit) + timeDescr);
stringBuilder.append("\nLength: " + gridlet.getGridletLength() + " MIs");
stringBuilder.append("\nNum. PEs: " + getNumPE());
return stringBuilder.toString();
}
/**
* Gets the remaining gridlet length
*
* @return gridlet length
* @pre $none
* @post $result >= 0
*/
public double getRemainingLength() {
double length = gridlet.getGridletLength() - finishedSoFar;
// Remaining Gridlet length can't be negative number. This can be
// happening when this.updateGridletFinishedSoFar() keep calling.
if (length < 0.0) {
length = 0.0;
}
return length;
}
/** Prints the Gridlet objects */
private void printGridletList(GridletList list, String name) {
int size = list.size();
Gridlet gridlet = null;
String indent = " ";
System.out.println();
System.out.println("============= OUTPUT for " + name + " ==========");
System.out.println("Gridlet ID" + indent + "STATUS" + indent + "Resource ID" + indent + "Cost");
// a loop to print the overall result
int i = 0;
for (i = 0; i < size; i++) {
gridlet = (Gridlet) list.get(i);
System.out.print(indent + gridlet.getGridletID() + indent + indent);
System.out.print(gridlet.getGridletStatusString());
System.out.println(
indent
+ indent
+ gridlet.getResourceID()
+ indent
+ indent
+ gridlet.getProcessingCost());
}
// a loop to print each Gridlet's history
for (i = 0; i < size; i++) {
gridlet = (Gridlet) list.get(i);
System.out.println(gridlet.getGridletHistory());
System.out.print("Gridlet #" + gridlet.getGridletID());
System.out.println(
", length = "
+ gridlet.getGridletLength()
+ ", finished so far = "
+ gridlet.getGridletFinishedSoFar());
System.out.println("===========================================\n");
}
}
public GridletReply submitGridletToAgent(int dst_agentID, int dst_resID, Gridlet gridlet) {
GridletRequest request =
new GridletRequest(this.get_id(), this.get_id(), dst_agentID, dst_resID, gridlet);
int requestID = request.getRequestID();
int reqrepID = request.getReqrepID();
super.send(
super.output,
GridSimTags.SCHEDULE_NOW,
Tags.GRIDLET_SUBMIT_REQ,
new IO_data(request, gridlet.getGridletFileSize(), request.getDst_agentID()));
Sim_type_p ptag = new Sim_type_p(Tags.GRIDLET_SUBMIT_REP);
Sim_event ev = new Sim_event();
super.sim_get_next(ptag, ev); // only look for this type of ack
GridletReply reply = GridletReply.get_data(ev);
Assert.assertEquals(requestID, reply.getRequestID());
Assert.assertEquals(Tags.GRIDLET_SUBMIT_REQ, reply.getRequestTAG());
Assert.assertEquals(Tags.GRIDLET_SUBMIT_REP, ev.get_tag());
double evrecv_time = GridSim.clock();
if (reply.isOk()) {
String msg =
String.format(
"%1$f %2$d %3$s <-- GOT GRIDLET_REPLY for Gridlet %4$d of Gridlet %5$d with result TRUE on AM_%6$s",
evrecv_time,
reqrepID,
this.get_name(),
reply.getReceivedGridlet().getGridletID(),
reply.getRequest().getGridlet().getGridletID(),
super.getEntityName(reply.getRequest().getDst_resID()));
this.write(msg);
} else {
String msg =
String.format(
"%1$f %2$d %3$s <-- GOT GRIDLET_REPLY for Gridlet %4$d of Gridlet %5$d with result FALSE on AM_%6$s",
evrecv_time,
reqrepID,
this.get_name(),
reply.getReceivedGridlet().getGridletID(),
reply.getRequest().getGridlet().getGridletID(),
super.getEntityName(reply.getRequest().getDst_resID()));
this.write(msg);
}
return reply;
}
/*
* Initialises all local attributes
* @pre $none
* @post $none
*/
private void init() {
this.arrivalTime = GridSim.clock();
this.gridlet.setSubmissionTime(arrivalTime);
// default values
this.actualFinishTime = NOT_FOUND; // Cannot finish in this hourly slot.
this.expectedFinishTime = NOT_FOUND;
this.startTime = NOT_FOUND;
this.totalCompletionTime = 0L;
this.startExecTime = 0L;
this.partition = NOT_FOUND;
this.priority = NOT_FOUND;
// In case a Gridlet has been executed partially by some other grid
// resources.
this.finishedSoFar = gridlet.getGridletFinishedSoFar();
}
/** The core method that handles communications among GridSim entities. */
public void body() {
// wait for a little while for about 3 seconds.
// This to give a time for GridResource entities to register their
// services to GIS (GridInformationService) entity.
super.gridSimHold(3.0);
LinkedList resList = super.getGridResourceList();
// initialises all the containers
int totalResource = resList.size();
int resourceID[] = new int[totalResource];
String resourceName[] = new String[totalResource];
// a loop to get all the resources available
int i = 0;
for (i = 0; i < totalResource; i++) {
// Resource list contains list of resource IDs
resourceID[i] = ((Integer) resList.get(i)).intValue();
// get their names as well
resourceName[i] = GridSim.getEntityName(resourceID[i]);
}
////////////////////////////////////////////////
// SUBMIT Gridlets
// determines which GridResource to send to
int index = myId_ % totalResource;
if (index >= totalResource) {
index = 0;
}
// sends all the Gridlets
Gridlet gl = null;
boolean success;
for (i = 0; i < list_.size(); i++) {
gl = (Gridlet) list_.get(i);
// For even number of Gridlets, send with an acknowledgement
if (i % 2 == 0) {
success = super.gridletSubmit(gl, resourceID[index], 0.0, true);
System.out.println(
name_
+ ": Sending Gridlet #"
+ gl.getGridletID()
+ " with status = "
+ success
+ " to "
+ resourceName[index]);
}
// For odd number of Gridlets, send without an acknowledgement
else {
success = super.gridletSubmit(gl, resourceID[index], 0.0, false);
System.out.println(
name_
+ ": Sending Gridlet #"
+ gl.getGridletID()
+ " with NO ACK so status = "
+ success
+ " to "
+ resourceName[index]);
}
}
//////////////////////////////////////////
// CANCELING Gridlets
// hold for few period -- 100 seconds
super.gridSimHold(15);
System.out.println("<<<<<<<<< pause for 15 >>>>>>>>>>>");
// a loop that cancels an even number of Gridlet
for (i = 0; i < list_.size(); i++) {
if (i % 2 == 0) {
gl = super.gridletCancel(i, myId_, resourceID[index], 0.0);
System.out.print(name_ + ": Canceling Gridlet #" + i + " at time = " + GridSim.clock());
if (gl == null) {
System.out.println(" result = NULL");
} else // if Cancel is successful, then add it into the list
{
System.out.println(" result = NOT null");
receiveList_.add(gl);
}
}
}
////////////////////////////////////////////////////////
// RECEIVES Gridlets back
// hold for few period - 1000 seconds since the Gridlets length are
// quite huge for a small bandwidth
super.gridSimHold(1000);
System.out.println("<<<<<<<<< pause for 1000 >>>>>>>>>>>");
// receives the gridlet back
int size = list_.size() - receiveList_.size();
for (i = 0; i < size; i++) {
gl = (Gridlet) super.receiveEventObject(); // gets the Gridlet
receiveList_.add(gl); // add into the received list
System.out.println(
name_ + ": Receiving Gridlet #" + gl.getGridletID() + " at time = " + GridSim.clock());
}
System.out.println(this.name_ + ":%%%% Exiting body() at time " + GridSim.clock());
// shut down I/O ports
shutdownUserEntity();
terminateIOEntities();
// Prints the simulation output
printGridletList(receiveList_, name_);
}
/**
* Gets the user or owner of this Gridlet
*
* @return the Gridlet's user Id
* @pre $none
* @post $none
*/
public int getSenderID() {
return gridlet.getUserID();
}
/**
* Allocates a new object upon the arrival of a Gridlet object. The arriving time is determined by
* {@link gridsim.GridSim#clock()}.
*
* @param gridlet a gridlet object
* @see gridsim.GridSim#clock()
* @pre gridlet != null
* @post $none
*/
public SSGridlet(Gridlet gridlet) {
this.gridlet = gridlet;
this.reservID = gridlet.getReservationID();
init();
}
/**
* Gets the Gridlet status
*
* @return Gridlet status
* @pre $none
* @post $none
*/
public int getStatus() {
return gridlet.getGridletStatus();
}
/**
* Gets this Gridlet entity Id
*
* @return the Gridlet entity Id
* @pre $none
* @post $none
*/
public int getID() {
return gridlet.getGridletID();
}
/**
* Gets the Gridlet's execution start time
*
* @return Gridlet's execution start time
* @pre $none
* @post $none
*/
public double getExecStartTime() {
return gridlet.getExecStartTime();
}
/**
* Gets the Gridlet's class type
*
* @return class type of the Gridlet
* @pre $none
* @post $none
*/
public int getClassType() {
return gridlet.getClassType();
}
/**
* Gets the Gridlet's length
*
* @return Gridlet's length
* @pre $none
* @post $none
*/
public double getLength() {
return gridlet.getGridletLength();
}
/**
* Gets the submission or arrival time of this Gridlet from the latest GridResource
*
* @return the submission time or <code>0.0</code> if none
*/
public double getSubmissionTime() {
return gridlet.getSubmissionTime();
}
/**
* Gets the number of PEs required to execute this Gridlet.
*
* @return number of PE
* @pre $none
* @post $none
*/
public int getNumPE() {
return gridlet.getNumPE();
}