TimerService Class Reference

#include <TimerService.h>

Public Member Functions
void	postModule (const edm::ModuleDescription &iMod)
void	preModule (const edm::ModuleDescription &iMod)
	TimerService (const edm::ParameterSet &, edm::ActivityRegistry &iAR)
	~TimerService ()

Static Public Member Functions
static void	fillDescriptions (edm::ConfigurationDescriptions &descriptions)

Public Attributes
sigc::signal< void, const edm::ModuleDescription &, double >	newMeasurementSignal

Private Attributes
hlt::CPUTimer	cpu_timer
bool	is_bound_
bool	useCPUtime

Detailed Description

Description: Class accessing CPUTimer to record processing-time info per module (either CPU-time or wall-clock-time)

Original Author: Christos Leonidopoulos, March 2007

Definition at line 84 of file TimerService.h.

Constructor & Destructor Documentation

TimerService::TimerService	(	const edm::ParameterSet &	ps,
		edm::ActivityRegistry &	iAR
	)

Definition at line 9 of file TimerService.cc.

References CPUAffinity::bindToCurrentCpu(), CPUAffinity::currentCpu(), is_bound_, postModule(), preModule(), useCPUtime, edm::ActivityRegistry::watchPostModule(), and edm::ActivityRegistry::watchPreModule().

                                                           :
  useCPUtime( ps.getUntrackedParameter<bool>("useCPUtime", true) ),
  cpu_timer(useCPUtime),
  is_bound_(false)
{
  if (useCPUtime) {
    is_bound_ = CPUAffinity::bindToCurrentCpu();
    if (is_bound_)
      // the process is (now) bound to a single CPU, the call to clock_gettime(CLOCK_THREAD_CPUTIME_ID, ...) is safe to use
      edm::LogInfo("TimerService") << "this process is bound to CPU " << CPUAffinity::currentCpu();
    else
      // the process is NOT bound to a single CPU
      edm::LogError("TimerService") << "this process is NOT bound to a single CPU, the results of the TimerService may be undefined";
  }

  iAR.watchPreModule(this, &TimerService::preModule);
  iAR.watchPostModule(this, &TimerService::postModule);
}

TimerService::~TimerService

(

)

Definition at line 29 of file TimerService.cc.

References gather_cfg::cout, is_bound_, and useCPUtime.

{
  if (useCPUtime and not is_bound_)
    std::cout << "this process is NOT bound to a single CPU, the results of the TimerService may be undefined";
  std::cout << "==========================================================\n";
  std::cout << " TimerService Info:\n";
  std::cout << " Used " << (useCPUtime ? "CPU" : "wall-clock") << "time for timing information\n";
  std::cout << "==========================================================\n";
  std::cout << std::flush;
}

Member Function Documentation

void TimerService::fillDescriptions ( edm::ConfigurationDescriptions &  descriptions )

static

Definition at line 40 of file TimerService.cc.

References edm::ConfigurationDescriptions::add(), and edm::ParameterSetDescription::addUntracked().

                                                                              {
  edm::ParameterSetDescription desc;
  desc.addUntracked<bool>("useCPUtime",true);
  descriptions.add("TimerService", desc);
}

void TimerService::postModule

(

const edm::ModuleDescription &

iMod

)

Definition at line 54 of file TimerService.cc.

References cpu_timer, hlt::CPUTimer::delta(), newMeasurementSignal, and hlt::CPUTimer::stop().

Referenced by TimerService().

{
  cpu_timer.stop();
  double time = cpu_timer.delta();  // in secs
  newMeasurementSignal(iMod, time);
}

void TimerService::preModule

(

const edm::ModuleDescription &

iMod

)

Definition at line 47 of file TimerService.cc.

References cpu_timer, hlt::CPUTimer::reset(), and hlt::CPUTimer::start().

Referenced by TimerService().

{
  cpu_timer.reset();
  cpu_timer.start();  
}

Member Data Documentation

hlt::CPUTimer TimerService::cpu_timer

private

Definition at line 103 of file TimerService.h.

Referenced by postModule(), and preModule().

bool TimerService::is_bound_

private

Definition at line 106 of file TimerService.h.

Referenced by TimerService(), and ~TimerService().

sigc::signal<void, const edm::ModuleDescription&, double> TimerService::newMeasurementSignal

Definition at line 91 of file TimerService.h.

Referenced by postModule(), and Timer::Timer().

bool TimerService::useCPUtime

private

Definition at line 100 of file TimerService.h.

Referenced by TimerService(), and ~TimerService().