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Dynamic pyne source lib for OpenMC #1356

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Dynamic pyne source lib for OpenMC #1356

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f5e5592
start adding openmc api in source_sampling
zxkjack123 Oct 30, 2020
1f24828
some update
zxkjack123 Jun 15, 2021
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109 changes: 109 additions & 0 deletions src/source_sampling.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -710,3 +710,112 @@ pyne::SourceParticle::SourceParticle(double _x, double _y, double _z,
e(_e), w(_w), cell_list(_cell_list) {}

pyne::SourceParticle::~SourceParticle() {};

/// OpenMC custom source
#ifdef OPENMC_SOURCE_H
/// for OpenMC custom source
//openmc::Particle::Bank PyneSource::sample(uint64_t* seed)
//{
// // init pyne sampler
// std::map<std::string, std::string> tag_names;
// tag_names.insert(std::pair<std::string, std::string> ("src_tag_name",
// "source_density"));
// tag_names.insert(std::pair<std::string, std::string> ("bias_tag_name",
// "biased_source_density"));
// tag_names.insert(std::pair<std::string, std::string> ("cell_number_tag_name",
// "cell_number"));
// tag_names.insert(std::pair<std::string, std::string> ("cell_fracs_tag_name",
// "cell_fracs"));
// tag_names.insert(std::pair<std::string, std::string> ("e_bounds_tag_name",
// "e_bounds"));
// int mode = 0;
// sampler = new pyne::Sampler('source.h5m', tag_names, *mode);
// // fake rands for test
// std::vector<double> rands;
// for (int i=0; i<6; i++) {
// rands.push_back(0.5);
// }
// pyne::SourceParticle pyne_src = sampler.particle_birth(rands)
// // convert pyne source particle to openmc particle
// openmc::Particle::Bank particle;
// // particle type
// particle.particle = openmc::Particle::Type::photon;
// // wgt
// particle.wgt = pyne_src.get_w();
// // position
// particle.r = Position(pyne_src.get_x(), pyne_src.get_y(), pyne_src.get_z());
// // angle
// Isotropic angle;
// particle.u = angle.sample();
// particle.E = pyne_src.get_e();
// particle.delayed_group = 0;
// return particle;
//}

openmc::SourceSite pyne::PyneSource::sample(uint64_t* seed)
{
// init pyne sampler
std::map<std::string, std::string> tag_names;
tag_names.insert(std::pair<std::string, std::string> ("src_tag_name",
"source_density"));
tag_names.insert(std::pair<std::string, std::string> ("bias_tag_name",
"biased_source_density"));
tag_names.insert(std::pair<std::string, std::string> ("cell_number_tag_name",
"cell_number"));
tag_names.insert(std::pair<std::string, std::string> ("cell_fracs_tag_name",
"cell_fracs"));
tag_names.insert(std::pair<std::string, std::string> ("e_bounds_tag_name",
"e_bounds"));
int mode = 0;
sampler = new pyne::Sampler('source.h5m', tag_names, *mode);
// fake rands for test
std::vector<double> rands;
for (int i=0; i<6; i++) {
rands.push_back(0.5);
}
pyne::SourceParticle pyne_src = sampler.particle_birth(rands)
// convert pyne source particle to openmc particle
openmc::SourceSite particle;
// particle type
particle.particle = openmc::ParticleType::photon;
// wgt
particle.wgt = pyne_src.get_w();
// position
particle.r = Position(pyne_src.get_x(), pyne_src.get_y(), pyne_src.get_z());
// angle
Isotropic angle;
particle.u = angle.sample();
particle.E = pyne_src.get_e();
particle.delayed_group = 0;
return particle;
}
//class RingSource : public openmc::Source
//{
// openmc::SourceSite sample(uint64_t* seed) const
// {
// openmc::SourceSite particle;
// // wgt
// particle.particle = openmc::ParticleType::neutron;
// particle.wgt = 1.0;
// // position
// double angle = 2.0 * M_PI * openmc::prn(seed);
// double radius = 3.0;
// particle.r.x = radius * std::cos(angle);
// particle.r.y = radius * std::sin(angle);
// particle.r.z = 0.0;
// // angle
// particle.u = {1.0, 0.0, 0.0};
// particle.E = 14.08e6;
// particle.delayed_group = 0;
// return particle;
// }
//};

//// A function to create a unique pointer to an instance of this class when generated
//// via a plugin call using dlopen/dlsym.
//// You must have external C linkage here otherwise dlopen will not find the file
//extern "C" std::unique_ptr<PyneSource> openmc_create_source(std::string parameters)
//{
// return std::make_unique<PyneSource>();
//}
#endif // OPENMC_SOURCE_H
24 changes: 24 additions & 0 deletions src/source_sampling.h
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Expand Up @@ -42,6 +42,7 @@
#endif
#include "moab/CartVect.hpp"


#ifdef __cplusplus
extern "C" {
#endif
Expand Down Expand Up @@ -262,10 +263,33 @@ namespace pyne {
// get has_cell_fracs
bool check_cell_fracs(moab::Tag cell_fracs_tag);
};

/// OpenMC custom source
#ifdef OPENMC_SOURCE_H
/// for OpenMC custom source
#include <cmath> // for M_PI
#include <memory> // for unique_ptr
#include "openmc/random_lcg.h"
#include "openmc/source.h"
#include "openmc/particle.h"
class PyneSource : public openmc::Source
{
openmc::SourceSite sample(uint64_t* seed);
};

// A function to create a unique pointer to an instance of this class when generated
// via a plugin call using dlopen/dlsym.
// You must have external C linkage here otherwise dlopen will not find the file
std::unique_ptr<PyneSource> openmc_create_source(std::string parameters)
{
return std::make_unique<PyneSource>();
}
#endif // OPENMC_SOURCE_H
} //end namespace pyne

#ifdef __cplusplus
} // extern "C"
#endif


#endif // PYNE_6OR6BJURKJHHTOFWXO2VMQM5EY