CaloGPUTimed Class Reference

Base class to provide some basic common infrastructure for timing measurements... More...

#include <CaloGPUTimed.h>

Inheritance diagram for CaloGPUTimed:

Collaboration diagram for CaloGPUTimed:

Protected Member Functions
template<class T >
	CaloGPUTimed (T *ptr)
void	record_times (const size_t event_num, const std::vector< size_t > &times) const
template<class ... Args>
void	record_times (const size_t event_num, const size_t &value) const
template<class ... Args>
void	record_times (const size_t event_num, const size_t &value, Args &&... args) const
void	print_times (const std::string &header, const size_t time_size) const

Protected Attributes
std::shared_mutex	m_timeMutex
	Mutex that is locked when recording times. More...
std::vector< size_t > m_times	ATLAS_THREAD_SAFE
	Vector to hold execution times to be recorded if necessary. More...
std::vector< size_t > m_eventNumbers	ATLAS_THREAD_SAFE
	Vector to hold the event numbers to be recorded if necessary. More...
Gaudi::Property< bool >	m_measureTimes
	If true, times are recorded to the file given by m_timeFileName. More...
Gaudi::Property< std::string >	m_timeFileName
	File to which times should be saved. More...

Private Member Functions
void	record_times_helper (const size_t) const
template<class Arg >
void	record_times_helper (const size_t index, Arg &&arg) const
template<class ... Args>
void	record_times_helper (size_t index, Args &&... args) const

Detailed Description

Base class to provide some basic common infrastructure for timing measurements...

Author

Nuno Fernandes nuno..nosp@m.dos..nosp@m.santo.nosp@m.s.fe.nosp@m.rnand.nosp@m.es@c.nosp@m.ern.c.nosp@m.h

Date

01 June 2022

Definition at line 24 of file CaloGPUTimed.h.

Constructor & Destructor Documentation

CaloGPUTimed()

template<class T >

CaloGPUTimed::CaloGPUTimed ( T *  ptr )

inlineprotected

Definition at line 55 of file CaloGPUTimed.h.

                       :
    m_measureTimes(ptr, "MeasureTimes", false, "Save time measurements"),
    m_timeFileName(ptr, "TimeFileOutput", "times.txt", "File to which time measurements should be saved")
  {
  }

Member Function Documentation

print_times()

void CaloGPUTimed::print_times ( const std::string &  header, const size_t  time_size  ) const

inlineprotected

Definition at line 143 of file CaloGPUTimed.h.

  {
    std::shared_lock<std::shared_mutex> lock(m_timeMutex);
    
    if (m_timeFileName.size() == 0)
      {
        return;
      }
    
    std::vector<size_t> indices(m_eventNumbers.size());
    
    std::iota(indices.begin(), indices.end(), 0);
    std::sort(indices.begin(), indices.end(), [&](size_t a, size_t b)
    {
      return m_eventNumbers[a] < m_eventNumbers[b];
    }
             );
    std::ofstream out(m_timeFileName);
 
    out << "Event_Number Total " << header << "\n";
 
    for (const size_t idx : indices)
      {
        out << m_eventNumbers[idx] << " ";
 
        size_t total = 0;
 
        for (size_t i = 0; i < time_size; ++i)
          {
            total += m_times[idx * time_size + i];
          }
 
        out << total << " ";
 
        for (size_t i = 0; i < time_size; ++i)
          {
            out << m_times[idx * time_size + i] << " ";
          }
        out << "\n";
      }
 
    out << std::endl;
 
    out.close();
  }

record_times() [1/3]

template<class ... Args>

void CaloGPUTimed::record_times ( const size_t  event_num, const size_t &  value  ) const

inlineprotected

Definition at line 105 of file CaloGPUTimed.h.

  {
    const size_t time_size = 1;
 
    size_t old_size;
 
    {
      std::unique_lock<std::shared_mutex> lock(m_timeMutex);
      old_size = m_times.size();
      m_times.resize(old_size + time_size);
      m_eventNumbers.push_back(event_num);
    }
    {
      std::shared_lock<std::shared_mutex> lock(m_timeMutex);
      record_times_helper(old_size, value);
    }
  }

record_times() [2/3]

template<class ... Args>

void CaloGPUTimed::record_times ( const size_t  event_num, const size_t &  value, Args &&...  args  ) const

inlineprotected

Definition at line 124 of file CaloGPUTimed.h.

  {
    const size_t time_size = sizeof...(args) + 1;
 
    size_t old_size;
 
    {
      std::unique_lock<std::shared_mutex> lock(m_timeMutex);
      old_size = m_times.size();
      m_times.resize(old_size + time_size);
      m_eventNumbers.push_back(event_num);
    }
    {
      std::shared_lock<std::shared_mutex> lock(m_timeMutex);
      record_times_helper(old_size, value, std::forward<Args>(args)...);
    }
 
  }

record_times() [3/3]

void CaloGPUTimed::record_times ( const size_t  event_num, const std::vector< size_t > &  times  ) const

inlineprotected

Definition at line 86 of file CaloGPUTimed.h.

  {
    size_t old_size;
    {
      std::unique_lock<std::shared_mutex> lock(m_timeMutex);
      old_size = m_times.size();
      m_times.resize(old_size + times.size());
      m_eventNumbers.push_back(event_num);
    }
    {
      std::shared_lock<std::shared_mutex> lock(m_timeMutex);
      for (size_t i = 0; i < times.size(); ++i)
        {
          m_times[old_size + i] = times[i];
        }
    }
  }

record_times_helper() [1/3]

template<class Arg >

void CaloGPUTimed::record_times_helper ( const size_t  index, Arg &&  arg  ) const

inlineprivate

Definition at line 70 of file CaloGPUTimed.h.

  {
    // coverity[missing_lock]
    m_times[index] = std::forward<Arg>(arg);
    
    //This is called within a function that holds the lock itself.
  }

record_times_helper() [2/3]

void CaloGPUTimed::record_times_helper ( const  size_t ) const

inlineprivate

Definition at line 64 of file CaloGPUTimed.h.

  {
    //Do nothing
  }

record_times_helper() [3/3]

template<class ... Args>

void CaloGPUTimed::record_times_helper ( size_t  index, Args &&...  args  ) const

inlineprivate

Definition at line 79 of file CaloGPUTimed.h.

  {
    (record_times_helper(index++, std::forward<Args>(args)), ...);
  }

Member Data Documentation

ATLAS_THREAD_SAFE [1/2]

std::vector<size_t> m_times CaloGPUTimed::ATLAS_THREAD_SAFE

mutableprotected

Vector to hold execution times to be recorded if necessary.

Definition at line 35 of file CaloGPUTimed.h.

ATLAS_THREAD_SAFE [2/2]

std::vector<size_t> m_eventNumbers CaloGPUTimed::ATLAS_THREAD_SAFE

mutableprotected

Vector to hold the event numbers to be recorded if necessary.

Definition at line 40 of file CaloGPUTimed.h.

m_measureTimes

Gaudi::Property<bool> CaloGPUTimed::m_measureTimes

protected

If true, times are recorded to the file given by m_timeFileName.

Defaults to false.

Definition at line 46 of file CaloGPUTimed.h.

m_timeFileName

Gaudi::Property<std::string> CaloGPUTimed::m_timeFileName

protected

File to which times should be saved.

Definition at line 50 of file CaloGPUTimed.h.

m_timeMutex

std::shared_mutex CaloGPUTimed::m_timeMutex

mutableprotected

Mutex that is locked when recording times.

Definition at line 32 of file CaloGPUTimed.h.

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

• CaloGPUTimed.h