mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 19:53:45 +01:00
82 lines
3.2 KiB
C++
82 lines
3.2 KiB
C++
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
|
||
|
|
*
|
||
|
|
* Copyright (C) 2011 by M. Ferrero, O. Parcollet
|
||
|
|
*
|
||
|
|
* TRIQS is free software: you can redistribute it and/or modify it under the
|
||
|
|
* terms of the GNU General Public License as published by the Free Software
|
||
|
|
* Foundation, either version 3 of the License, or (at your option) any later
|
||
|
|
* version.
|
||
|
|
*
|
||
|
|
* TRIQS 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 General Public License for more
|
||
|
|
* details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License along with
|
||
|
|
* TRIQS. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#include "random_generator.hpp"
|
||
|
|
#include "./MersenneRNG.hpp"
|
||
|
|
#include <boost/random.hpp>
|
||
|
|
//#include <boost/random/uniform_int.hpp>
|
||
|
|
#include <boost/random/uniform_real.hpp>
|
||
|
|
//#include <boost/random/variate_generator.hpp>
|
||
|
|
#include <boost/random/mersenne_twister.hpp>
|
||
|
|
#include <boost/random/lagged_fibonacci.hpp>
|
||
|
|
#include <boost/random/ranlux.hpp>
|
||
|
|
#include <sstream>
|
||
|
|
#include <boost/preprocessor/seq.hpp>
|
||
|
|
#include <boost/preprocessor/control/if.hpp>
|
||
|
|
#define AS_STRING(X) AS_STRING2(X)
|
||
|
|
#define AS_STRING2(X) #X
|
||
|
|
|
||
|
|
// List of All available Boost random number generator
|
||
|
|
#define RNG_LIST (mt19937)(mt11213b)\
|
||
|
|
(lagged_fibonacci607) (lagged_fibonacci1279) (lagged_fibonacci2281) (lagged_fibonacci3217) (lagged_fibonacci4423)\
|
||
|
|
(lagged_fibonacci9689) (lagged_fibonacci19937) (lagged_fibonacci23209) (lagged_fibonacci44497) (ranlux3)
|
||
|
|
|
||
|
|
|
||
|
|
namespace triqs {
|
||
|
|
namespace mc_tools {
|
||
|
|
|
||
|
|
typedef boost::generator <double> gen_type;
|
||
|
|
|
||
|
|
inline gen_type * choose_gen(std::string const & RandomGeneratorName, std::size_t seed_, boost::shared_ptr<void> &ptr) {
|
||
|
|
|
||
|
|
if (RandomGeneratorName=="") return new gen_type( mc_tools::RandomGenerators::RandMT (seed_));
|
||
|
|
|
||
|
|
// now boost random number generators
|
||
|
|
#define DRNG(r,data,XX) if (RandomGeneratorName==AS_STRING(XX)) { \
|
||
|
|
boost::shared_ptr<boost::XX> localptr = boost::make_shared<boost::XX>(seed_);\
|
||
|
|
ptr = localptr; boost::uniform_real<> dis;\
|
||
|
|
return new gen_type( boost::variate_generator<boost::XX&, boost::uniform_real<> >(*localptr,dis));}
|
||
|
|
|
||
|
|
BOOST_PP_SEQ_FOR_EACH(DRNG,~,RNG_LIST)
|
||
|
|
|
||
|
|
TRIQS_RUNTIME_ERROR<<"The random generator "<<RandomGeneratorName<<" is not recognized";
|
||
|
|
}
|
||
|
|
|
||
|
|
//---------------------------------------------
|
||
|
|
|
||
|
|
random_generator::random_generator(std::string const & RandomGeneratorName, std::size_t seed_ ) :
|
||
|
|
rng_ptr(), gen (choose_gen(RandomGeneratorName,seed_,rng_ptr)), name(RandomGeneratorName),seed(seed_) {}
|
||
|
|
|
||
|
|
//---------------------------------------------
|
||
|
|
|
||
|
|
random_generator::random_generator( random_generator const & p) :
|
||
|
|
rng_ptr(), gen (choose_gen(p.name,p.seed,rng_ptr)), name (p.name),seed(p.seed) {}
|
||
|
|
|
||
|
|
//---------------------------------------------
|
||
|
|
|
||
|
|
std::string random_generator::random_generator_names(std::string const & sep) {
|
||
|
|
#define PR(r,sep,p,XX) BOOST_PP_IF(p,+ sep +,) std::string(AS_STRING(XX))
|
||
|
|
return BOOST_PP_SEQ_FOR_EACH_I (PR,sep,RNG_LIST);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|