libMesh::PerfMon Class Reference

#include <perfmon.h>

List of all members.

Public Member Functions
	PerfMon (std::string id, const unsigned int v=1, const unsigned int pid=0)
	~PerfMon ()
void	reset ()
double	print (std::string msg="NULL", std::ostream &out=libMesh::out)
Private Attributes
const std::string	id_string
struct timeval	the_time_start
struct timeval	the_time_stop
const unsigned int	verbose
const unsigned int	proc_id
float	rtime
float	ptime
float	mflops
long long int	flpins

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Detailed Description

Definition at line 43 of file perfmon.h.

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Constructor & Destructor Documentation

libMesh::PerfMon::PerfMon	(	std::string	id,
		const unsigned int	v = 1,
		const unsigned int	pid = 0
	)			[inline]

Definition at line 135 of file perfmon.h.

References reset().

                                          :
  id_string(id),
  verbose(v),
  proc_id(pid)
{
  reset ();
}

libMesh::PerfMon::~PerfMon

(

)

[inline]

Definition at line 148 of file perfmon.h.

References print().

{
  print ();
}

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Member Function Documentation

double libMesh::PerfMon::print	(	std::string	msg = "NULL",
		std::ostream &	out = libMesh::out
	)			[inline]

Definition at line 87 of file perfmon.h.

References flpins, id_string, mflops, proc_id, ptime, rtime, the_time_start, the_time_stop, and verbose.

Referenced by ~PerfMon().

{
  gettimeofday (&the_time_stop, NULL);

#ifdef HAVE_PAPI_H
  Papi::PAPI_flops (&rtime, &ptime, &flpins, &mflops);
#endif

  const double elapsed_time = ((double) (the_time_stop.tv_sec - the_time_start.tv_sec)) +
                              ((double) (the_time_stop.tv_usec - the_time_start.tv_usec))/1000000.;

  if (verbose)
    {

      if (proc_id == 0)
        {
          if (msg == "NULL")
            my_out << " " << id_string
                   << ": elapsed time: "
                   << elapsed_time << " (sec)"
                   << std::endl;
          else
            my_out << " " << msg
                   << ": elapsed time: "
                   << elapsed_time << " (sec)"
                   << std::endl;

#ifdef HAVE_PAPI_H
          if (msg == "NULL")
            my_out << " " << id_string
                   << ": mflops: "
                   << mflops
                   << std::endl;
          else
            my_out << " " << msg
                   << ": mflops: "
                   << mflops
                   << std::endl;
#endif

        }
    }

  return elapsed_time;
}

void libMesh::PerfMon::reset

(

)

[inline]

Definition at line 74 of file perfmon.h.

References flpins, mflops, ptime, rtime, and the_time_start.

Referenced by PerfMon().

{
  gettimeofday (&the_time_start, NULL);

#ifdef HAVE_PAPI_H
  Papi::PAPI_flops (&rtime, &ptime, &flpins, &mflops);
#endif
}

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Member Data Documentation

long long int libMesh::PerfMon::flpins [private]

Definition at line 66 of file perfmon.h.

Referenced by print(), and reset().

const std::string libMesh::PerfMon::id_string [private]

Definition at line 56 of file perfmon.h.

Referenced by print().

float libMesh::PerfMon::mflops [private]

Definition at line 65 of file perfmon.h.

Referenced by print(), and reset().

const unsigned int libMesh::PerfMon::proc_id [private]

Definition at line 62 of file perfmon.h.

Referenced by print().

float libMesh::PerfMon::ptime [private]

Definition at line 65 of file perfmon.h.

Referenced by print(), and reset().

float libMesh::PerfMon::rtime [private]

Definition at line 65 of file perfmon.h.

Referenced by print(), and reset().

struct timeval libMesh::PerfMon::the_time_start [read, private]

Definition at line 58 of file perfmon.h.

Referenced by print(), and reset().

struct timeval libMesh::PerfMon::the_time_stop [read, private]

Definition at line 59 of file perfmon.h.

Referenced by print().

const unsigned int libMesh::PerfMon::verbose [private]

Definition at line 61 of file perfmon.h.

Referenced by print().

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

• perfmon.h