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added variable time measure

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This commit is contained in:
Caner Candan 2010-11-28 03:24:02 +01:00
commit d6b566b538
1 changed files with 87 additions and 56 deletions
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141
eo/test/t-openmp.cpp
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@ -24,6 +24,66 @@ typedef eoReal< eoMinimizingFitness > EOT;
//-----------------------------------------------------------------------------
double variable_time_function(const std::vector<double>&)
{
::srand( ::time( NULL ) );
::usleep( 10 * ( rand() / RAND_MAX ) );
return 0.0;
}
double measure_apply( size_t p,
void (*fct)(eoUF<EOT&, void>&, std::vector<EOT>&),
eoInitFixedLength< EOT >& init,
eoEvalFuncCounter< EOT >& eval )
{
eoPop< EOT > pop( p, init );
double t1 = omp_get_wtime();
fct( eval, pop );
double t2 = omp_get_wtime();
return t2 - t1;
}
void measure( size_t p,
eoInitFixedLength< EOT >& init,
eoEvalFuncCounter< EOT >& eval,
std::ofstream& speedupFile,
std::ofstream& efficiencyFile,
std::ofstream& dynamicityFile,
size_t nbtask )
{
// sequential scope
double Ts = measure_apply( p, apply< EOT >, init, eval );
// parallel scope
double Tp = measure_apply( p, omp_apply< EOT >, init, eval );
// parallel scope dynamic
double Tpd = measure_apply( p, omp_dynamic_apply< EOT >, init, eval );
double speedup = Ts / Tp;
if ( speedup > nbtask ) { return; }
double efficiency = speedup / nbtask;
speedupFile << speedup << ' ';
efficiencyFile << efficiency << ' ';
eo::log << eo::debug;
eo::log << "Ts = " << Ts << std::endl;
eo::log << "Tp = " << Tp << std::endl;
eo::log << "S_p = " << speedup << std::endl;
eo::log << "E_p = " << efficiency << std::endl;
double dynamicity = Tp / Tpd;
if ( dynamicity > nbtask ) { return; }
eo::log << "Tpd = " << Tpd << std::endl;
eo::log << "D_p = " << dynamicity << std::endl;
dynamicityFile << dynamicity << ' ';
}
int main(int ac, char** av)
{
eoParserLogger parser(ac, av);
@ -47,6 +107,9 @@ int main(int ac, char** av)
uint32_t seedParam = parser.getORcreateParam((uint32_t)0, "seed", "Random number seed", 0).value();
if (seedParam == 0) { seedParam = time(0); }
unsigned int measureConstTime = parser.getORcreateParam((unsigned int)1, "measureConstTime", "Toggle measure of constant time", 'm', "Results").value();
unsigned int measureVarTime = parser.getORcreateParam((unsigned int)1, "measureVarTime", "Toggle measure of variable time", 'M', "Results").value();
if (parser.userNeedsHelp())
{
parser.printHelp(std::cout);
@ -59,7 +122,10 @@ int main(int ac, char** av)
rng.reseed( seedParam );
eoEvalFuncPtr< EOT, double, const std::vector< double >& > mainEval( real_value );
eoEvalFuncCounter<EOT> eval( mainEval );
eoEvalFuncCounter< EOT > eval( mainEval );
eoEvalFuncPtr< EOT, double, const std::vector< double >& > mainEval_variable( variable_time_function );
eoEvalFuncCounter< EOT > eval_variable( mainEval_variable );
eoUniformGenerator< double > gen(-5, 5);
@ -67,10 +133,15 @@ int main(int ac, char** av)
params << "_p" << popMin << "_pS" << popStep << "_P" << popMax
<< "_d" << dimMin << "_dS" << dimStep << "_D" << dimMax
<< "_r" << nRun << "_s" << seedParam;
std::ofstream speedupFile( std::string( fileNamesPrefix + speedupFileName + params.str() ).c_str() );
std::ofstream efficiencyFile( std::string( fileNamesPrefix + efficiencyFileName + params.str() ).c_str() );
std::ofstream dynamicityFile( std::string( fileNamesPrefix + dynamicityFileName + params.str() ).c_str() );
std::ofstream speedupFile_variable( std::string( fileNamesPrefix + "variable_" + speedupFileName + params.str() ).c_str() );
std::ofstream efficiencyFile_variable( std::string( fileNamesPrefix + "variable_" + efficiencyFileName + params.str() ).c_str() );
std::ofstream dynamicityFile_variable( std::string( fileNamesPrefix + "variable_" + dynamicityFileName + params.str() ).c_str() );
size_t nbtask = 1;
#pragma omp parallel
{
@ -89,67 +160,27 @@ int main(int ac, char** av)
{
eoInitFixedLength< EOT > init( d, gen );
double Ts;
double Tp;
double Tpd;
// sequential scope
{
eoPop< EOT > pop( p, init );
double t1 = omp_get_wtime();
apply< EOT >(eval, pop);
double t2 = omp_get_wtime();
Ts = t2 - t1;
}
// parallel scope
{
eoPop< EOT > pop( p, init );
double t1 = omp_get_wtime();
omp_apply< EOT >(eval, pop);
double t2 = omp_get_wtime();
Tp = t2 - t1;
}
// parallel scope dynamic
{
eoPop< EOT > pop( p, init );
double t1 = omp_get_wtime();
omp_dynamic_apply< EOT >(eval, pop);
double t2 = omp_get_wtime();
Tpd = t2 - t1;
}
double speedup = Ts / Tp;
if ( speedup > nbtask ) { continue; }
double efficiency = speedup / nbtask;
speedupFile << speedup << ' ';
efficiencyFile << efficiency << ' ';
eo::log << eo::debug;
eo::log << "Ts = " << Ts << std::endl;
eo::log << "Tp = " << Tp << std::endl;
eo::log << "S_p = " << speedup << std::endl;
eo::log << "E_p = " << efficiency << std::endl;
double dynamicity = Tp / Tpd;
if ( dynamicity > nbtask ) { continue; }
eo::log << "Tpd = " << Tpd << std::endl;
eo::log << "D_p = " << dynamicity << std::endl;
dynamicityFile << dynamicity << ' ';
// for constant time measure
if ( measureConstTime == 1 )
{
measure( p, init, eval, speedupFile, efficiencyFile, dynamicityFile, nbtask );
}
// for variable time measure
if ( measureVarTime == 1 )
{
measure( p, init, eval_variable, speedupFile_variable, efficiencyFile_variable, dynamicityFile_variable, nbtask );
}
} // end of runs
speedupFile << std::endl;
efficiencyFile << std::endl;
dynamicityFile << std::endl;
speedupFile_variable << std::endl;
efficiencyFile_variable << std::endl;
dynamicityFile_variable << std::endl;
} // end of dimension
} // end of population