sendNow(getVmsToDatacentersMap().getvm.getId()), CloudSimTags.CLOUDLET_SUBMIT, cloudlet);
//This function send cloudlet and add it in a simulation queue without any delay.
Send(getVmsToDatacentersMap().get(vm.getId()),specifictime, CloudSimTags.CLOUDLET_SUBMIT, cloudlet);
//The specific time is given in the specifictime variable.