libint2::Timers< N > Class Template Reference

Timers aggregates N C++11 "timers"; used to high-resolution profile stages of integral computation. More...

#include <timer.h>

Public Types
typedef std::chrono::duration< double >	dur_t
typedef std::chrono::high_resolution_clock	clock_t
typedef std::chrono::time_point< clock_t >	time_point_t

Public Member Functions
void	set_now_overhead (size_t ns)
	use this to report the overhead of now() call; if set, the reported timings will be adjusted for this overhead More...
void	start (size_t t)
	starts timer t
dur_t	stop (size_t t)
	stops timer t More...
double	read (size_t t) const
	reads value (in seconds) of timer t , converted to double
void	clear ()
	resets timers to zero

Static Public Member Functions
static time_point_t	now ()
	returns the current time point

Detailed Description

template<size_t N>
class libint2::Timers< N >

Timers aggregates N C++11 "timers"; used to high-resolution profile stages of integral computation.

Template Parameters

N	the number of timers

Note

member functions are not reentrant, use one Timers object per thread

Member Function Documentation

set_now_overhead()

template<size_t N>

void libint2::Timers< N >::set_now_overhead ( size_t  ns )

inline

use this to report the overhead of now() call; if set, the reported timings will be adjusted for this overhead

Note

this is clearly compiler and system dependent, please measure carefully (turn off turboboost, etc.) using src/bin/profile/chrono.cc

stop()

template<size_t N>

dur_t libint2::Timers< N >::stop ( size_t  t )

inline

stops timer t

Returns

the duration, corrected for overhead, elapsed since the last call to start(t)

References libint2::Timers< N >::now().

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

• timer.h