/*!
* This function refreshes the job list. It queries the server for the required
* information and then updates the list control.
*
* \par Notes on the implementation of RefreshList()
* For efficiency reasons, after the initial refresh, all refreshes are
* incremental. Because IPC is the slowest part of the whole program the client
* only gathers the only the information that is subject to have changed from
* the server. The list control is also left alone during the process so that
* it is greyed out for as short a period as possible.
*
* \par
* The list control is also updated incrementally, yet for a completely
* different reason. Whenever the list control is cleared entirely, it not only
* takes time to reload the entire list, but it resets the current position of
* the list in the scroller, so every time the client refreshes the user is
* looking at the top (and most likely irrelevant) portion of the queue again.
*
* \par
* Due to the incremental nature of this code, it is rather complicated and
* should be left alone, unless there is a good reason to change it.
*/
void GamessQFrame::RefreshList()
{
int *ids = mQueueManager.GetJobIds();
int num = ids[0];
wxString name;
int procs;
Job::Status status;
Job *job;
// update any jobs that are out of date, and remove any jobs that no longer
// exist on the server
JobList::compatibility_iterator node = mJobList.GetFirst();
int i = 1;
while (node) {
job = node->GetData();
if (i <= num && job->GetId() == ids[i]) {
// update the status
status = job->GetStatus();
if (status != Job::STATUS_DONE && status != Job::STATUS_ERROR
&& status != Job::STATUS_CANCELED) {
job->SetStatus(mQueueManager.GetStatus(ids[i]));
}
node = node->GetNext();
i++;
} else {
JobList::compatibility_iterator nextNode = node->GetNext();
mJobList.DeleteNode(node);
node = nextNode;
}
}
// add any new jobs for which we do not yet have local copies
for (; i <= num; i++) {
name = mQueueManager.GetName(ids[i]);
procs = mQueueManager.GetNumProcessors(ids[i]);
status = mQueueManager.GetStatus(ids[i]);
job = new Job(ids[i], name, wxT(""), status, procs);
mJobList.Append(job);
}
// update the interface
jobListCtrl->Hide();
// update the jobs that are in the control and delete any jobs that no
// longer exist
node = mJobList.GetFirst();
i = 0;
while (i < jobListCtrl->GetItemCount()) {
if (node && jobListCtrl->GetItemData(i) == node->GetData()->GetId()) {
jobListCtrl->SetItem(i, 0, node->GetData()->GetName());
jobListCtrl->SetItem(i, 2, node->GetData()->GetStatusString());
node = node->GetNext();
i++;
} else {
jobListCtrl->DeleteItem(i);
}
}
// add new entries to the control for the new jobs
for (;node; i ++, node = node->GetNext()) {
Job *job = node->GetData();
int index = jobListCtrl->InsertItem(i, job->GetName());
jobListCtrl->SetItemData(index, job->GetId());
wxString procs;
procs << job->GetNumProcessors();
jobListCtrl->SetItem(index, 1, procs);
jobListCtrl->SetItem(index, 2, job->GetStatusString());
}
jobListCtrl->Show();
delete ids;
mRefreshTimer->Start(mRefreshFrequency, wxTIMER_ONE_SHOT);
}
void GridManager::Update(uint32 diff)
{
for (auto machine : _machines)
machine->Update(diff);
for (auto pMachine : _priorityMachines)
pMachine->Update(diff);
if (!_waitingJobs.empty())
{
Job* job = _waitingJobs.front();
if (job->GetPriority() == 0)
{
std::vector<Machine*> machineVector; // TODO: Every time a job is added this sorted vector is being rebuilt; change that
machineVector.reserve(_machines.size());
// put machines in the map into a vector so we can sort them
std::transform(_machines.begin(), _machines.end(), std::back_inserter(machineVector),
[](MachineSet::value_type val) { return val; });
// sort of load balancing, better machines get assigned jobs first
std::sort(machineVector.begin(), machineVector.end(), [](Machine* m1, Machine* m2) {
double score1 = ((m1->GetMaxJobs() - m1->GetNumberOfCurrentJobs()) + m1->GetAvailableDiskSpace() + m1->GetAvailableRAM());
double score2 = ((m2->GetMaxJobs() - m2->GetNumberOfCurrentJobs()) + m2->GetAvailableDiskSpace() + m2->GetAvailableRAM());
return score1 > score2;
});
for (auto& mach : machineVector)
{
if (mach->AddJob(job))
{
sLog(Console)->Log("Job %s added to machine %s", job->GetName().c_str(), mach->GetName().c_str());
_waitingJobs.pop();
}
}
}
else
{
std::vector<PriorityMachine*> machineVector; // TODO: Every time a job is added this sorted vector is being rebuilt; change that
machineVector.reserve(_priorityMachines.size());
// put machines in the map into a vector so we can sort them
std::transform(_priorityMachines.begin(), _priorityMachines.end(), std::back_inserter(machineVector),
[](PriorityMachineSet::value_type val) { return val; });
// sort of load balancing, better machines get assigned jobs first
std::sort(machineVector.begin(), machineVector.end(), [](PriorityMachine* m1, PriorityMachine* m2) {
double score1 = ((m1->GetMaxJobs() - m1->GetNumberOfCurrentJobs()) + m1->GetAvailableDiskSpace() + m1->GetAvailableRAM());
double score2 = ((m2->GetMaxJobs() - m2->GetNumberOfCurrentJobs()) + m2->GetAvailableDiskSpace() + m2->GetAvailableRAM());
return score1 > score2;
});
for (auto& mach : machineVector)
{
if (mach->AddJob(job))
{
sLog(Console)->Log("Job %s added to machine %s", job->GetName().c_str(), mach->GetName().c_str());
_waitingJobs.pop();
}
}
}
}
_idleUsers.Update(diff);
}
