gtsam
3rdparty
Eigen
bench
btl
generic_bench
timers
portable_perf_analyzer.hh
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//=====================================================
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// File : portable_perf_analyzer.hh
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// Author : L. Plagne <laurent.plagne@edf.fr)>
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// Copyright (C) EDF R&D, mar d�c 3 18:59:35 CET 2002
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// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
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//=====================================================
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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#ifndef _PORTABLE_PERF_ANALYZER_HH
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#define _PORTABLE_PERF_ANALYZER_HH
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#include "utilities.h"
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#include "
timers/portable_timer.hh
"
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template
<
class
Action>
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class
Portable_Perf_Analyzer
{
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public
:
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Portable_Perf_Analyzer
( ):
_nb_calc
(0),
m_time_action
(0),
_chronos
(){
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MESSAGE
(
"Portable_Perf_Analyzer Ctor"
);
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};
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Portable_Perf_Analyzer
(
const
Portable_Perf_Analyzer
& ){
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INFOS
(
"Copy Ctor not implemented"
);
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exit(0);
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};
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~Portable_Perf_Analyzer
(){
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MESSAGE
(
"Portable_Perf_Analyzer Dtor"
);
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};
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BTL_DONT_INLINE
double
eval_mflops
(
int
size
)
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{
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Action
action
(
size
);
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// action.initialize();
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// time_action = time_calculate(action);
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while
(
m_time_action
<
MIN_TIME
)
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{
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if
(
_nb_calc
==0)
_nb_calc
= 1;
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else
_nb_calc
*= 2;
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action
.initialize();
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m_time_action
=
time_calculate
(
action
);
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}
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// optimize
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for
(
int
i
=1;
i
<
BtlConfig::Instance
.
tries
; ++
i
)
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{
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Action
_action(
size
);
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std::cout <<
" "
<< _action.nb_op_base()*
_nb_calc
/(
m_time_action
*1e6) <<
" "
;
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_action.initialize();
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m_time_action
=
std::min
(
m_time_action
,
time_calculate
(_action));
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}
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double
time_action =
m_time_action
/ (double(
_nb_calc
));
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// check
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if
(
BtlConfig::Instance
.checkResults &&
size
<128)
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{
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action
.initialize();
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action
.calculate();
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action
.check_result();
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}
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return
action
.nb_op_base()/(time_action*1e6);
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}
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BTL_DONT_INLINE
double
time_calculate
(
Action
&
action
)
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{
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// time measurement
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action
.calculate();
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_chronos
.
start
();
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for
(
unsigned
int
ii=0;ii<
_nb_calc
;ii++)
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{
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action
.calculate();
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}
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_chronos
.
stop
();
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return
_chronos
.
user_time
();
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}
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unsigned
long
long
get_nb_calc
()
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{
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return
_nb_calc
;
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}
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private
:
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unsigned
long
long
_nb_calc
;
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double
m_time_action
;
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Portable_Timer
_chronos
;
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};
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#endif //_PORTABLE_PERF_ANALYZER_HH
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Portable_Perf_Analyzer::_nb_calc
unsigned long long _nb_calc
Definition:
portable_perf_analyzer.hh:96
MIN_TIME
#define MIN_TIME
Definition:
bench_parameter.hh:26
Portable_Perf_Analyzer::m_time_action
double m_time_action
Definition:
portable_perf_analyzer.hh:97
Portable_Perf_Analyzer::time_calculate
BTL_DONT_INLINE double time_calculate(Action &action)
Definition:
portable_perf_analyzer.hh:76
Portable_Perf_Analyzer::~Portable_Perf_Analyzer
~Portable_Perf_Analyzer()
Definition:
portable_perf_analyzer.hh:37
Portable_Perf_Analyzer
Definition:
portable_perf_analyzer.hh:28
Portable_Timer::stop
void stop()
Definition:
portable_timer.hh:159
portable_timer.hh
size
Scalar Scalar int size
Definition:
benchVecAdd.cpp:17
MESSAGE
#define MESSAGE(chain)
Definition:
3rdparty/Eigen/bench/btl/generic_bench/utils/utilities.h:76
Portable_Timer
Definition:
portable_timer.hh:139
Portable_Perf_Analyzer::_chronos
Portable_Timer _chronos
Definition:
portable_perf_analyzer.hh:98
Portable_Perf_Analyzer::eval_mflops
BTL_DONT_INLINE double eval_mflops(int size)
Definition:
portable_perf_analyzer.hh:41
gtsam.examples.DogLegOptimizerExample.action
action
Definition:
DogLegOptimizerExample.py:115
Portable_Timer::user_time
double user_time()
Definition:
portable_timer.hh:172
Portable_Perf_Analyzer::get_nb_calc
unsigned long long get_nb_calc()
Definition:
portable_perf_analyzer.hh:89
BtlConfig::tries
int tries
Definition:
btl.hh:233
Portable_Timer::start
void start()
Definition:
portable_timer.hh:151
Eigen::Action
Action
Definition:
Constants.h:504
INFOS
#define INFOS(chain)
Definition:
3rdparty/Eigen/bench/btl/generic_bench/utils/utilities.h:22
min
#define min(a, b)
Definition:
datatypes.h:19
Portable_Perf_Analyzer::Portable_Perf_Analyzer
Portable_Perf_Analyzer(const Portable_Perf_Analyzer &)
Definition:
portable_perf_analyzer.hh:33
Portable_Perf_Analyzer::Portable_Perf_Analyzer
Portable_Perf_Analyzer()
Definition:
portable_perf_analyzer.hh:30
BTL_DONT_INLINE
#define BTL_DONT_INLINE
Definition:
btl.hh:38
i
int i
Definition:
BiCGSTAB_step_by_step.cpp:9
BtlConfig::Instance
static BtlConfig Instance
Definition:
btl.hh:229
gtsam
Author(s):
autogenerated on Fri Nov 1 2024 03:34:23