/** Reads jobs from data_set file and sends them to the Scheduler entity dynamically over time. */
public void body() {
super.gridSimHold(10.0); // hold by 10 second
while (current_gl < total_jobs) {
Sim_event ev = new Sim_event();
sim_get_next(ev);
if (ev.get_tag() == AleaSimTags.EVENT_WAKE) {
ComplexGridlet gl = readGridlet(current_gl);
current_gl++;
if (gl == null && current_gl < total_jobs) {
super.sim_schedule(this.getEntityId(this.getEntityName()), 0.0, AleaSimTags.EVENT_WAKE);
continue;
} else if (gl == null && current_gl >= total_jobs) {
continue;
}
// to synchronize job arrival wrt. the data set.
double delay = Math.max(0.0, (gl.getArrival_time() - super.clock()));
// some time is needed to transfer this job to the scheduler, i.e., delay should be delay =
// delay - transfer_time. Fix this in the future.
// System.out.println("Sending: "+gl.getGridletID());
last_delay = delay;
super.sim_schedule(
this.getEntityId("Alea_3.0_scheduler"), delay, AleaSimTags.GRIDLET_INFO, gl);
delay = Math.max(0.0, (gl.getArrival_time() - super.clock()));
if (current_gl < total_jobs) {
// use delay - next job will be loaded after the simulation time is equal to the previous
// job arrival.
super.sim_schedule(this.getEntityId(this.getEntityName()), delay, AleaSimTags.EVENT_WAKE);
}
continue;
}
}
System.out.println("Shuting down - last gridlet = " + current_gl + " of " + total_jobs);
super.sim_schedule(
this.getEntityId("Alea_3.0_scheduler"),
Math.round(last_delay + 2),
AleaSimTags.SUBMISSION_DONE,
new Integer(current_gl));
Sim_event ev = new Sim_event();
sim_get_next(ev);
if (ev.get_tag() == GridSimTags.END_OF_SIMULATION) {
System.out.println(
"Shuting down the "
+ data_set
+ "_PWALoader... with: "
+ fail
+ " failed or skipped jobs");
}
shutdownUserEntity();
super.terminateIOEntities();
}
