int master(int argc, char *argv[])
{
const char *hostname = MSG_host_get_name(MSG_host_self());
int i;
//the hostname has an empty HDD with a capacity of 100000 (bytes)
TRACE_host_variable_set(hostname, "HDD_capacity", 100000);
TRACE_host_variable_set(hostname, "HDD_utilization", 0);
for (i = 0; i < 10; i++) {
//create and execute a task just to make the simulated time advance
msg_task_t task = MSG_task_create("task", 10000, 0, NULL);
MSG_task_execute (task);
MSG_task_destroy (task);
//ADD: after the execution of this task, the HDD utilization increases by 100 (bytes)
TRACE_host_variable_add(hostname, "HDD_utilization", 100);
}
for (i = 0; i < 10; i++) {
//create and execute a task just to make the simulated time advance
msg_task_t task = MSG_task_create("task", 10000, 0, NULL);
MSG_task_execute (task);
MSG_task_destroy (task);
//SUB: after the execution of this task, the HDD utilization decreases by 100 (bytes)
TRACE_host_variable_sub(hostname, "HDD_utilization", 100);
}
return 0;
}
int addDatasetAmountT(std::string& host_name, std::string& type){
/**
Increases number of datasets on @host_name by one.
Parameters:
----------
@host_name -- name of host
@type -- DISK or TAPE
*/
MSG_sem_acquire(sem_link);
// O -- Tape
if (!type.compare("0")){
TRACE_host_variable_add(host_name.c_str(), "datasetOnTape", 1);
//TRACE_host_variable_set(host_name, "datasetOnTape", dataset_number(host_name, "0"));
}else{
TRACE_host_variable_add(host_name.c_str(), "datasetOnDisk", 1);
//TRACE_host_variable_set(host_name, "datasetOnDisk", dataset_number(host_name, "1"));
}
MSG_sem_release(sem_link);
return 0;
}
static int worker(int argc, char *argv[])
{
msg_task_t task = NULL;
TRACE_host_variable_set(MSG_host_get_name(MSG_host_self()), "is_worker", 1);
TRACE_host_variable_set(MSG_host_get_name(MSG_host_self()), "task_computation", 0);
while (1) {
MSG_task_receive(&(task), "master_mailbox");
if (strcmp(MSG_task_get_name(task), "finalize") == 0) {
MSG_task_destroy(task);
break;
}
//adding the value returned by MSG_task_get_compute_duration(task)
//to the variable "task_computation"
TRACE_host_variable_add(MSG_host_get_name(MSG_host_self()), "task_computation", MSG_task_get_flops_amount(task));
MSG_task_execute(task);
MSG_task_destroy(task);
task = NULL;
}
return 0;
}
/** Receiver function */
int slave(int argc, char *argv[])
{
m_task_t task = NULL;
int res;
TRACE_host_variable_set("is_slave", 1);
while (1) {
res = MSG_task_receive(&(task), "master_mailbox");
if (!strcmp(MSG_task_get_name(task), "finalize")) {
MSG_task_destroy(task);
break;
}
//adding the value returned by MSG_task_get_compute_duration(task)
//to the variable "task_computation"
TRACE_host_variable_add("task_computation",
MSG_task_get_compute_duration(task));
MSG_task_execute(task);
MSG_task_destroy(task);
task = NULL;
}
return 0;
}
