mirror of
https://github.com/triqs/dft_tools
synced 2024-12-25 13:53:40 +01:00
e6529b608e
- Use a new buffered_function to replace the complicated generator code from ALPS. - Clean the implementation of the random_generator - update the documentation - update to the new python wrapper (could not be done with the previous version, because of lack of move constructor).
82 lines
3.3 KiB
C++
82 lines
3.3 KiB
C++
/*******************************************************************************
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*
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* TRIQS: a Toolbox for Research in Interacting Quantum Systems
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*
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* Copyright (C) 2011-2014 by M. Ferrero, O. Parcollet
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*
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* TRIQS is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* TRIQS. If not, see <http://www.gnu.org/licenses/>.
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*
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******************************************************************************/
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#include "random_generator.hpp"
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#include "./MersenneRNG.hpp"
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#include <boost/random.hpp>
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//#include <boost/random/uniform_int.hpp>
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#include <boost/random/uniform_real.hpp>
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//#include <boost/random/variate_generator.hpp>
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#include <boost/random/mersenne_twister.hpp>
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#include <boost/random/lagged_fibonacci.hpp>
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#include <boost/random/ranlux.hpp>
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#include <sstream>
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#include <boost/preprocessor/seq.hpp>
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#include <boost/preprocessor/control/if.hpp>
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// List of All available Boost random number generator
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#define RNG_LIST \
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(mt19937)(mt11213b)(lagged_fibonacci607)(lagged_fibonacci1279)(lagged_fibonacci2281)(lagged_fibonacci3217)( \
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lagged_fibonacci4423)(lagged_fibonacci9689)(lagged_fibonacci19937)(lagged_fibonacci23209)(lagged_fibonacci44497)(ranlux3)
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namespace triqs {
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namespace mc_tools {
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random_generator::random_generator(std::string const& RandomGeneratorName, uint32_t seed_) {
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_name = RandomGeneratorName;
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if (RandomGeneratorName == "") {
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gen = utility::buffered_function<double>(mc_tools::RandomGenerators::RandMT(seed_));
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return;
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}
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boost::uniform_real<> dis;
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#define AS_STRING(X) AS_STRING2(X)
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#define AS_STRING2(X) #X
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// now boost random number generators
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#define DRNG(r, data, XX) \
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if (RandomGeneratorName == AS_STRING(XX)) { \
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gen = utility::buffered_function<double>(boost::variate_generator<boost::XX, boost::uniform_real<>>(boost::XX(seed_), dis)); \
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return; \
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}
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BOOST_PP_SEQ_FOR_EACH(DRNG, ~, RNG_LIST)
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TRIQS_RUNTIME_ERROR << "The random generator " << RandomGeneratorName << " is not recognized";
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}
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//---------------------------------------------
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std::string random_generator_names(std::string const &sep) {
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#define PR(r, sep, p, XX) BOOST_PP_IF(p, +sep +, ) std::string(AS_STRING(XX))
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return BOOST_PP_SEQ_FOR_EACH_I(PR, sep, RNG_LIST);
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}
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std::vector<std::string> random_generator_names_list() {
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std::vector<std::string> res;
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#define PR2(r, sep, p, XX) res.push_back(AS_STRING(XX));
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BOOST_PP_SEQ_FOR_EACH_I(PR2, sep, RNG_LIST);
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return res;
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}
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}
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}
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