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Zoltan2_TimerManager.cpp
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45 
50 #include <Zoltan2_TimerManager.hpp>
51 
52 namespace Zoltan2{
53 
54 TimerManager::TimerManager(const RCP<const Comm<int> > &comm,
55  std::ofstream *os, TimerType tt):
56  comm_(comm), myOS_(NULL), fileOS_(os), ttype_(tt),
57  typeSelector_(), timers_(), timerMap_(), stopHint_(-1)
58 {
59  if (fileOS_ == NULL)
60  ttype_ = NO_TIMERS;
61 
62  typeSelector_.reset();
63  typeSelector_.set(ttype_);
64 
65  if (ttype_ == BOTH_TIMERS){
66  typeSelector_.set(MACRO_TIMERS);
67  typeSelector_.set(MICRO_TIMERS);
68  }
69 }
70 
71 TimerManager::TimerManager(const RCP<const Comm<int> > &comm,
72  std::ostream *os, TimerType tt):
73  comm_(comm), myOS_(os), fileOS_(NULL), ttype_(tt),
74  typeSelector_(), timers_(), timerMap_(), stopHint_(-1)
75 {
76  if (myOS_ == NULL)
77  ttype_ = NO_TIMERS;
78 
79  typeSelector_.reset();
80  typeSelector_.set(ttype_);
81 
82  if (ttype_ == BOTH_TIMERS){
83  typeSelector_.set(MACRO_TIMERS);
84  typeSelector_.set(MICRO_TIMERS);
85  }
86 }
87 
89 {
90  if (fileOS_ != NULL){
91  fileOS_->close();
92  fileOS_=NULL;
93  }
94 }
95 
96 void TimerManager::stop(TimerType tt, const std::string &name)
97 {
98  if (!typeSelector_[tt])
99  return;
100 
101  if (stopHint_>0 && timers_[stopHint_]->name() == name){
102  timers_[stopHint_]->stop();
103  stopHint_--;
104  return;
105  }
106 
107  std::map<std::string, int>::iterator curr = timerMap_.find(name);
108  if (curr != timerMap_.end()){
109  timers_[curr->second]->stop();
110  }
111  else{ // Stopping a timer that doesn't exist. Just create it.
112  RCP<Teuchos::Time> newTimer = Teuchos::TimeMonitor::getNewTimer(name);
113  newTimer->reset(); // reset to zero
114  timerMap_[name] = timers_.size();
115  timers_.push_back(newTimer);
116  std::cerr << comm_->getRank() << ": warning, stop with no start:"
117  << name.c_str() << std::endl;
118  }
119 }
120 
121 void TimerManager::start(TimerType tt, const std::string &name)
122 {
123  if (!typeSelector_[tt])
124  return;
125 
126  std::map<std::string, int>::iterator curr = timerMap_.find(name);
127  int index = -1;
128  if (curr == timerMap_.end()){
129  RCP<Teuchos::Time> newTimer = Teuchos::TimeMonitor::getNewTimer(name);
130  index = timers_.size();
131  timerMap_[name] = index;
132  timers_.push_back(newTimer);
133  }
134  else{
135  index = curr->second;
136  }
137 
138  timers_[index]->start();
139  timers_[index]->incrementNumCalls();
140  stopHint_ = index;
141 }
142 
144 {
145  if (fileOS_)
146  Teuchos::TimeMonitor::summarize(comm_.ptr(), *fileOS_);
147  else if (myOS_)
148  Teuchos::TimeMonitor::summarize(comm_.ptr(), *myOS_);
149 }
150 
152 {
153  print();
154  Teuchos::TimeMonitor::zeroOutTimers();
155  if (fileOS_){
156  fileOS_->close();
157  fileOS_ = NULL;
158  }
159 }
160 
161 } // namespace Zoltan2
Time an algorithm (or other entity) as a whole.
TimerType
The type of timers which should be active.
void print() const
Print out global summary, do not reset timers.
Time the substeps of an entity.
TimerManager(const RCP< const Comm< int > > &comm, std::ofstream *of, TimerType tt)
Constructor for output to a file.
Run both MACRO and MICRO timers.
void printAndResetToZero()
Print out global summary of timers and reset timers to zero.
No timing data will be collected (the default).
Declarations for TimerManager.
void stop(TimerType tt, const std::string &name)
Stop the named timer.
void start(TimerType tt, const std::string &name)
Start the named timer.