C++ (Cpp) TRACE_host_variable_sub Examples

Example #1

File: user_variables.c Project: FlorianPO/simgrid

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;
}

Example #2

File: tracer_storage.cpp Project: skygrid/grid_simulation

int minusDatasetAmountT(std::string& host_name, std::string type){
    /**
        Decreases 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_sub(host_name.c_str(), "datasetOnTape", 1);
        //TRACE_host_variable_set(host_name, "datasetOnTape", dataset_number(host_name, "0"));
    }else{
        TRACE_host_variable_sub(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;

}