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Teuchos::StackedTimer Class Reference

This class allows one to push and pop timers on and off a stack. More...

#include <Teuchos_StackedTimer.hpp>

Classes

struct  AlignmentWidths
 Stores the column widths for output alignment. More...
 
class  LevelTimer
 Timer info at a given level and all the children. More...
 
struct  OutputOptions
 Struct for controlling output options like histograms. More...
 

Public Member Functions

 StackedTimer (const char *name, const bool start_base_timer=true)
 
void startBaseTimer ()
 
void stopBaseTimer ()
 
void start (const std::string name, const bool push_kokkos_profiling_region=true)
 
void stop (const std::string &name, const bool pop_kokkos_profiling_region=true)
 
void incrementUpdates (const long long i=1)
 
double accumulatedTime (const std::string &name="")
 
double accumulatedTimePerUpdate (const std::string &name="")
 
double accumulatedTimePerTimerCall (const std::string &name="")
 
const BaseTimerfindBaseTimer (const std::string &name) const
 
BaseTimer::TimeInfo findTimer (const std::string &name)
 
void report (std::ostream &os)
 
void report (std::ostream &os, Teuchos::RCP< const Teuchos::Comm< int > > comm, OutputOptions options=OutputOptions())
 

Protected Member Functions

void flatten ()
 
void merge (Teuchos::RCP< const Teuchos::Comm< int > > comm)
 
void collectRemoteData (Teuchos::RCP< const Teuchos::Comm< int > > comm, const OutputOptions &options)
 
double computeColumnWidthsForAligment (std::string prefix, int print_level, std::vector< bool > &printed, double parent_time, const OutputOptions &options)
 
double printLevel (std::string prefix, int level, std::ostream &os, std::vector< bool > &printed, double parent_time, const OutputOptions &options)
 

Protected Attributes

LevelTimertop_
 Current level running. More...
 
LevelTimer timer_
 Base timer. More...
 
Array< std::string > flat_names_
 
Array< double > min_
 
Array< double > max_
 
Array< double > sum_
 
Array< double > sum_sq_
 
Array< Array< int > > hist_
 
Array< unsigned long > count_
 
Array< unsigned long long > updates_
 
Array< int > active_
 
struct
Teuchos::StackedTimer::AlignmentWidths 
alignments_
 

Detailed Description

This class allows one to push and pop timers on and off a stack.

To use this class one would do something like this

StackedTimer timer(); // construct top level timer timer.start("some comp"); do_work(); timer.start("sub comp"); more_work(); timer.stop(); // stopping sub comp timer.stop(); // stopping comp

timer.stop(); // stopping all timer stuff timer.report(std::cout); // dump to screen

Definition at line 182 of file Teuchos_StackedTimer.hpp.

Constructor & Destructor Documentation

Teuchos::StackedTimer::StackedTimer ( const char *  name,
const bool  start_base_timer = true 
)
inlineexplicit

Construct a stacked timer

Parameters
[in]nameTop level name of the timer
[in]start_top_timerAutomatically start the top level timer. If set to false, the user will have to start it manually.

Definition at line 429 of file Teuchos_StackedTimer.hpp.

Member Function Documentation

void Teuchos::StackedTimer::startBaseTimer ( )
inline

Start the base level timer only

Definition at line 440 of file Teuchos_StackedTimer.hpp.

void Teuchos::StackedTimer::stopBaseTimer ( )
inline

Stop the base level timer only

Definition at line 450 of file Teuchos_StackedTimer.hpp.

void Teuchos::StackedTimer::start ( const std::string  name,
const bool  push_kokkos_profiling_region = true 
)
inline

Start a sublevel timer

Parameters
[in]nameName of the timer you wish to start
[in]push_kokkos_profiling_regionOptional parameter that if set to true, will pushRegion() in kokkos profiling for this timer. The TimeMonitor will always set this to false since it does its own pushRegion() in the Timer object (this prevents double registering with kokkos).

Definition at line 462 of file Teuchos_StackedTimer.hpp.

void Teuchos::StackedTimer::stop ( const std::string &  name,
const bool  pop_kokkos_profiling_region = true 
)
inline

Stop the current top running timer, should be called for the root timer prior to final output

Parameters
[in]nameName of the timer you wish to stop
[in]pop_kokkos_profiling_regionOptional parameter that if set to true, will popRegion() in kokkos profiling for this timer. The TimeMonitor will always set this to false since it does its own pushRegion() in the Timer object (this prevents double registering with kokkos).

Definition at line 480 of file Teuchos_StackedTimer.hpp.

void Teuchos::StackedTimer::incrementUpdates ( const long long  i = 1)
inline

Increment the iteration count for the running timer

Parameters
[in]iamount to increment the count

Definition at line 497 of file Teuchos_StackedTimer.hpp.

double Teuchos::StackedTimer::accumulatedTime ( const std::string &  name = "")
inline

Return the accumulated time the named timer has, if name is blank top level timer

Parameters
[in]nameName of the timer to output
Returns
amount of time in seconds

Definition at line 506 of file Teuchos_StackedTimer.hpp.

double Teuchos::StackedTimer::accumulatedTimePerUpdate ( const std::string &  name = "")
inline

Return the time spent per update at a given level

Parameters
[in]namename of subtimer, if blank return current level time
Returns
time in seconds per update at provided level

Definition at line 518 of file Teuchos_StackedTimer.hpp.

double Teuchos::StackedTimer::accumulatedTimePerTimerCall ( const std::string &  name = "")
inline

Return the time spent per timer start/stop at a given level

Parameters
[in]namename of subtimer, if blank return current level time
Returns
time in seconds per start/stop call at provided level

Definition at line 529 of file Teuchos_StackedTimer.hpp.

const BaseTimer* Teuchos::StackedTimer::findBaseTimer ( const std::string &  name) const
inline

Return pointer to the BaseTimer corresponding to a given string (full string name)

Parameters
nameinput string to search for
Returns
BaseTimer

Definition at line 541 of file Teuchos_StackedTimer.hpp.

BaseTimer::TimeInfo Teuchos::StackedTimer::findTimer ( const std::string &  name)
inline

Return the time info for a given string (full string name)

Parameters
nameinput string to search for
Returns
Time data

Definition at line 553 of file Teuchos_StackedTimer.hpp.

void Teuchos::StackedTimer::report ( std::ostream &  os)
inline

Definition at line 561 of file Teuchos_StackedTimer.hpp.

void Teuchos::StackedTimer::report ( std::ostream &  os,
Teuchos::RCP< const Teuchos::Comm< int > >  comm,
OutputOptions  options = OutputOptions() 
)

Dump all the data from all the MPI ranks to an ostream

Parameters
[in]os- Output stream
[in]comm- Teuchos comm pointer

Definition at line 500 of file Teuchos_StackedTimer.cpp.

void Teuchos::StackedTimer::flatten ( )
protected

Flatten the timers into a single array

Definition at line 74 of file Teuchos_StackedTimer.cpp.

void Teuchos::StackedTimer::merge ( Teuchos::RCP< const Teuchos::Comm< int > >  comm)
protected

Merge all the timers together into a single structure

Parameters
[in]comm- Communicator to use

Definition at line 82 of file Teuchos_StackedTimer.cpp.

void Teuchos::StackedTimer::collectRemoteData ( Teuchos::RCP< const Teuchos::Comm< int > >  comm,
const OutputOptions options 
)
protected

Migrate all the timer data to rank=0 if parallel

Definition at line 89 of file Teuchos_StackedTimer.cpp.

double Teuchos::StackedTimer::computeColumnWidthsForAligment ( std::string  prefix,
int  print_level,
std::vector< bool > &  printed,
double  parent_time,
const OutputOptions options 
)
protected

Compute the column widths to align the output from report() in columns.

Returns
total time for this level

Definition at line 184 of file Teuchos_StackedTimer.cpp.

double Teuchos::StackedTimer::printLevel ( std::string  prefix,
int  level,
std::ostream &  os,
std::vector< bool > &  printed,
double  parent_time,
const OutputOptions options 
)
protected

Recursive call to print a level of timer data.

Definition at line 307 of file Teuchos_StackedTimer.cpp.

Member Data Documentation

LevelTimer* Teuchos::StackedTimer::top_
protected

Current level running.

Definition at line 591 of file Teuchos_StackedTimer.hpp.

LevelTimer Teuchos::StackedTimer::timer_
protected

Base timer.

Definition at line 593 of file Teuchos_StackedTimer.hpp.

Array<std::string> Teuchos::StackedTimer::flat_names_
protected

Definition at line 595 of file Teuchos_StackedTimer.hpp.

Array<double> Teuchos::StackedTimer::min_
protected

Definition at line 596 of file Teuchos_StackedTimer.hpp.

Array<double> Teuchos::StackedTimer::max_
protected

Definition at line 597 of file Teuchos_StackedTimer.hpp.

Array<double> Teuchos::StackedTimer::sum_
protected

Definition at line 598 of file Teuchos_StackedTimer.hpp.

Array<double> Teuchos::StackedTimer::sum_sq_
protected

Definition at line 599 of file Teuchos_StackedTimer.hpp.

Array<Array<int> > Teuchos::StackedTimer::hist_
protected

Definition at line 600 of file Teuchos_StackedTimer.hpp.

Array<unsigned long> Teuchos::StackedTimer::count_
protected

Definition at line 601 of file Teuchos_StackedTimer.hpp.

Array<unsigned long long> Teuchos::StackedTimer::updates_
protected

Definition at line 602 of file Teuchos_StackedTimer.hpp.

Array<int> Teuchos::StackedTimer::active_
protected

Definition at line 603 of file Teuchos_StackedTimer.hpp.

struct Teuchos::StackedTimer::AlignmentWidths Teuchos::StackedTimer::alignments_
protected

The documentation for this class was generated from the following files: