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quemy 2012-08-30 11:30:11 +02:00
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branches/rc2.0/eo/src/utils/eoParallel.cpp
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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
/*
(c) Thales group, 2010
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation;
version 2 of the license.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact: http://eodev.sourceforge.net
Authors:
Caner Candan <caner.candan@thalesgroup.com>
*/
#include <omp.h>
#include "eoParallel.h"
#include "eoLogger.h"
eoParallel::eoParallel() :
_isEnabled( false, "parallelize-loop", "Enable memory shared parallelization into evaluation's loops", '\0' ),
_isDynamic( false, "parallelize-dynamic", "Enable dynamic memory shared parallelization", '\0' ),
_prefix( "results", "parallelize-prefix", "Here's the prefix filename where the results are going to be stored", '\0' ),
_nthreads( 0, "parallelize-nthreads", "Define the number of threads you want to use, nthreads = 0 means you want to use all threads available", '\0' ),
_enableResults( false, "parallelize-enable-results", "Enable the generation of results", '\0' ),
_doMeasure( false, "parallelize-do-measure", "Do some measures during execution", '\0' ),
_t_start(0)
{
}
eoParallel::~eoParallel()
{
#ifdef _OPENMP
if ( doMeasure() )
{
double _t_end = omp_get_wtime();
eoLogger log;
log << eo::file("measure_" + prefix()) << _t_end - _t_start << std::endl;
}
#endif // !_OPENMP
}
std::string eoParallel::className() const
{
return "eoParallel";
}
std::string eoParallel::prefix() const
{
std::string value( _prefix.value() );
if ( _isEnabled.value() )
{
if ( _isDynamic.value() )
{
value += "_dynamic.out";
}
else
{
value += "_parallel.out";
}
}
else
{
value += "_sequential.out";
}
return value;
}
void eoParallel::_createParameters( eoParser& parser )
{
std::string section("Parallelization");
parser.processParam( _isEnabled, section );
parser.processParam( _isDynamic, section );
parser.processParam( _prefix, section );
parser.processParam( _nthreads, section );
parser.processParam( _enableResults, section );
parser.processParam( _doMeasure, section );
}
void make_parallel(eoParser& parser)
{
eo::parallel._createParameters( parser );
#ifdef _OPENMP
if ( eo::parallel.isEnabled() )
{
if ( eo::parallel.nthreads() > 0 )
{
omp_set_num_threads( eo::parallel.nthreads() );
}
}
if ( eo::parallel.doMeasure() )
{
eo::parallel._t_start = omp_get_wtime();
}
#endif // !_OPENMP
}
eoParallel eo::parallel;