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using rdtsc for rng seed with mersenne twister

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This commit is contained in:
Caner Candan 2010-11-28 13:36:25 +01:00
commit e3c3d15628
2 changed files with 23 additions and 15 deletions
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6
eo/test/t-openmp.cpp
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@ -24,10 +24,12 @@ typedef eoReal< eoMinimizingFitness > EOT;
//-----------------------------------------------------------------------------
inline uint32_t get_rdtsc() { __asm__ ("xor %eax, %eax; cpuid; rdtsc"); }
double variable_time_function(const std::vector<double>&)
{
::srand( ::time( NULL ) );
::usleep( 10 * ( rand() / RAND_MAX ) );
eoRng myrng( get_rdtsc() );
::usleep( myrng.random( 10 ) );
return 0.0;
}

32
eo/test/t-openmp.py
View file

@ -67,27 +67,33 @@ def get_boxplot_data( filename ):
except:
raise ValueError('got an issue during the reading of file %s' % filename)
def non_zero( value ): return value if value > 0 else 1
def do_measure( name, p, ps, P, d, ds, D, r=options.nRun, s=options.seed, v='logging' ):
pwd = options.topic + name + '_'
cmd = OPENMP_EXEC_FORMAT % (p, ps, P, d, ds, D, r, s, v, pwd,
int(options.measureConstTime), int(options.measureVarTime))
int(options.measureConstTime),
int(options.measureVarTime))
logging.debug( cmd )
if not options.onlyprint:
os.system( cmd )
if not options.onlyexecute:
for cur in ['speedup', 'efficiency', 'dynamicity']:
filename = RESULT_FILE_FORMAT % (pwd, cur, p, ps, P, d, ds, D, r, s)
pylab.boxplot( get_boxplot_data( filename ) )
iters = ( non_zero( P - p ) / ps ) * ( non_zero( D - d ) / ds )
pylab.xlabel('%d iterations from %d,%d to %d,%d' % ( iters, p, d, P, D) )
pylab.ylabel('%s - %s' % (cur, name))
pylab.savefig( filename + '.pdf', format='pdf' )
pylab.savefig( filename + '.png', format='png' )
pylab.cla()
pylab.clf()
def generate( filenames ):
for cur in filenames:
filename = RESULT_FILE_FORMAT % (pwd, cur, p, ps, P, d, ds, D, r, s)
pylab.boxplot( get_boxplot_data( filename ) )
nonzero = lambda x: x if x > 0 else 1
iters = ( nonzero( P - p ) / ps ) * ( nonzero( D - d ) / ds )
pylab.xlabel('%d iterations from %d,%d to %d,%d' % ( iters, p, d, P, D) )
pylab.ylabel('%s - %s' % (cur, name))
pylab.savefig( filename + '.pdf', format='pdf' )
pylab.savefig( filename + '.png', format='png' )
pylab.cla()
pylab.clf()
if int(options.measureConstTime) == 1:
generate( ['speedup', 'efficiency', 'dynamicity'] )
if int(options.measureVarTime) == 1:
generate( ['variable_speedup', 'variable_efficiency', 'variable_dynamicity'] )
def main():
if not options.onlyprint: