Nektar++: Nektar::Timer Class Reference

Nektar::Timer::~Timer ( )

Definition at line 47 of file Timer.cpp.

{

}

Nektar::Timer::Timer ( const Timer & rhs )

private

Timer::CounterType Nektar::Timer::Elapsed ( )

Definition at line 73 of file Timer.cpp.

References m_end, and m_start.

Referenced by TimePerTest().

    {
        #ifdef _WIN32
            CounterType result;
            result.QuadPart = m_end.QuadPart - m_start.QuadPart;
            return result;
        #elif defined(__APPLE__)
            CounterType result = m_end;
            
            if( result.tv_usec < m_start.tv_usec) 
            {
                result.tv_sec -= 1;
                result.tv_usec += 1000000;
            }
            
            result.tv_sec -= m_start.tv_sec;
            result.tv_usec -= m_start.tv_usec;
            
            return result;
        #else
            CounterType result = m_end;
            if( result.tv_nsec < m_start.tv_nsec) 
            {
                result.tv_sec -= 1;
                result.tv_nsec += 1000000000;
            }
            
            result.tv_sec -= m_start.tv_sec;
            result.tv_nsec -= m_start.tv_nsec;
            return result;
        #endif
    }

Timer& Nektar::Timer::operator= ( const Timer & rhs )

private

void Nektar::Timer::Start ( )

Definition at line 51 of file Timer.cpp.

References m_start.

Referenced by Nektar::LibUtilities::AnalyticExpressionEvaluator::Evaluate(), Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluateAtPoint(), Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluateAtPoints(), Nektar::CoupledLinearNS::SetUpCoupledMatrix(), Nektar::CoupledLinearNS::SolveSteadyNavierStokes(), Nektar::SolverUtils::UnsteadySystem::v_DoSolve(), Nektar::PulseWaveSystem::v_DoSolve(), and Nektar::CoupledLinearNS::v_DoSolve().

    {
        #ifdef _WIN32
            QueryPerformanceCounter(&m_start);
        #elif defined(__APPLE__)
            gettimeofday(&m_start, 0);
        #else 
            clock_gettime(CLOCK_REALTIME, &m_start);
        #endif
    }

void Nektar::Timer::Stop ( )

Definition at line 62 of file Timer.cpp.

References m_end.

Referenced by Nektar::LibUtilities::AnalyticExpressionEvaluator::Evaluate(), Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluateAtPoint(), Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluateAtPoints(), Nektar::CoupledLinearNS::SetUpCoupledMatrix(), Nektar::CoupledLinearNS::SolveSteadyNavierStokes(), Nektar::SolverUtils::UnsteadySystem::v_DoSolve(), Nektar::PulseWaveSystem::v_DoSolve(), and Nektar::CoupledLinearNS::v_DoSolve().

    {
        #ifdef _WIN32
            QueryPerformanceCounter(&m_end);
        #elif defined(__APPLE__)
            gettimeofday(&m_end, 0);
        #else 
            clock_gettime(CLOCK_REALTIME, &m_end);
        #endif
    }

NekDouble Nektar::Timer::TimePerTest ( unsigned int n )

Returns amount of seconds per iteration in a test with n iterations.

Definition at line 108 of file Timer.cpp.

References Elapsed().

Referenced by Nektar::LibUtilities::AnalyticExpressionEvaluator::Evaluate(), Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluateAtPoint(), Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluateAtPoints(), Nektar::CoupledLinearNS::SetUpCoupledMatrix(), Nektar::CoupledLinearNS::SolveSteadyNavierStokes(), Nektar::SolverUtils::UnsteadySystem::v_DoSolve(), Nektar::PulseWaveSystem::v_DoSolve(), and Nektar::CoupledLinearNS::v_DoSolve().

    {
        #ifdef _WIN32
            CounterType frequency;
            QueryPerformanceFrequency(&frequency);
            return Elapsed().QuadPart/static_cast<NekDouble>(n) * 1.0/frequency.QuadPart;
        #elif defined(__APPLE__)
            CounterType elapsed = Elapsed();
            NekDouble result = elapsed.tv_sec/static_cast<NekDouble>(n) +
                ( elapsed.tv_usec/static_cast<NekDouble>(n) * 1.0e-6);
            return result;
        #else
            CounterType elapsed = Elapsed();
            NekDouble result = elapsed.tv_sec/static_cast<NekDouble>(n) +
                ( elapsed.tv_nsec/static_cast<NekDouble>(n) * 1.0e-9);
            return result;
        #endif
    }

CounterType Nektar::Timer::m_end

private

Definition at line 80 of file Timer.h.

Referenced by Elapsed(), and Stop().

CounterType Nektar::Timer::m_resolution

private

Definition at line 81 of file Timer.h.

CounterType Nektar::Timer::m_start

private

Definition at line 79 of file Timer.h.

Referenced by Elapsed(), and Start().

Public Member Functions
	Timer ()
	~Timer ()
void	Start ()
void	Stop ()
CounterType	Elapsed ()
NekDouble	TimePerTest (unsigned int n)
	Returns amount of seconds per iteration in a test with n iterations.

Private Member Functions
	Timer (const Timer &rhs)
Timer &	operator= (const Timer &rhs)

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

Private Attributes
CounterType	m_start
CounterType	m_end
CounterType	m_resolution