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#include <kel/lbm/lbm.hpp>
#include <kel/lbm/sycl/lbm.hpp>
#include <forstio/remote/filesystem/easy.hpp>
#include <forstio/codec/json/json.hpp>
namespace kel {
namespace lbm {
constexpr uint64_t dim_x = 256u;
constexpr uint64_t dim_y = 16u;
namespace sch {
using namespace saw::schema;
template<typename T, typename Desc>
using CellStruct = Struct<
Member<FixedArray<T,Desc::Q>, "dfs">,
Member<FixedArray<T,Desc::Q>, "dfs_old">,
Member<UInt8, "info">,
Member<Vector<T,Desc::D>, "velocity">,
Member<Vector<T,Desc::D>, "force">
>;
using InfoChunk = Chunk<UInt8, 0u, dim_x, dim_y>;
template<typename T, typename Desc>
using DfChunk = Chunk<FixedArray<T,Desc::Q>, 1u, dim_x, dim_y>;
template<typename T, typename Desc>
using ChunkStruct = Struct<
Member<InfoChunk, "info">
//,Member<DfChunk<T,Desc>, "dfs">
>;
}
template<typename T, typename Desc>
saw::error_or<void> setup_initial_conditions(saw::data<sch::ChunkStruct<T,Desc>>& fields){
auto& info_f = fields.template get<"info">();
// Set everything as walls
iterator<Desc::D>::apply(
[&](auto& index){
info_f.at(index).set(2u);
},
{},
info_f.get_dims(),
{}
);
// Fluid
iterator<Desc::D>::apply(
[&](auto& index){
info_f.at(index).set(1u);
},
{},
info_f.get_dims(),
{{1u,1u}}
);
// Inflow
iterator<Desc::D>::apply(
[&](auto& index){
info_f.at(index).set(3u);
},
{{0u,0u}},
{{1u, dim_y}},
{{0u,1u}}
);
// Outflow
iterator<Desc::D>::apply(
[&](auto& index){
info_f.at(index).set(4u);
},
{{dim_x-1u,0u}},
{{dim_x, dim_y}},
{{0u,1u}}
);
/*
//
auto& df_f = fields.template get<"dfs">();
saw::data<T> rho{1};
saw::data<sch::FixedArray<T,Desc::D>> vel{};
auto eq = equilibrium<T,Desc>(rho,vel);
iterator<Desc::D>::apply(
[&](auto& index){
auto& df = df_f.at(index);
df = eq;
},
{},// 0-index
df_f.get_dims()
);
*/
return saw::make_void();
}
template<typename T, typename Desc>
saw::error_or<void> step(saw::data<sch::ChunkStruct<T,Desc>,encode::Sycl<saw::encode::Native>>& fields, saw::data<sch::UInt64> t_i, device& dev){
auto& q = dev.get_handle();
return saw::make_void();
}
}
}
template<typename T, typename Desc>
saw::error_or<void> lbm_main(int argc, char** argv){
using namespace kel::lbm;
using dfi = df_info<T,Desc>;
auto eo_lbm_dir = output_directory();
if(eo_lbm_dir.is_error()){
return std::move(eo_lbm_dir.get_error());
}
auto& lbm_dir = eo_lbm_dir.get_value();
auto out_dir = lbm_dir / "poiseulle_particles_2d_gpu";
converter<sch::Float64> conv {
// delta_x
{{1.0}},
// delta_t
{{1.0}}
};
// saw::data<sch::FixedArray<sch::UInt64,Desc::D>> meta{{dim_x,dim_y}};
saw::data<sch::ChunkStruct<T,Desc>> lbm_data{};
device dev;
auto& sycl_q = dev.get_handle();
sycl_q.wait();
{
auto eov = setup_initial_conditions<T,Desc>(lbm_data);
if(eov.is_error()){
return eov;
}
}
{
std::cout<<"Hey"<<std::endl;
saw::data<sch::ChunkStruct<T,Desc>, encode::Sycl<saw::encode::Native>> lbm_sycl_data{sycl_q};
sycl_q.wait();
std::cout<<"Hey2"<<std::endl;
{
auto eov = dev.copy_to_device(lbm_data,lbm_sycl_data);
if(eov.is_error()){
return eov;
}
}
sycl_q.wait();
std::cout<<"Hey3"<<std::endl;
for(saw::data<sch::UInt64> i{0u}; i < saw::data<sch::UInt64>{32ul}; ++i){
auto eov = step<T,Desc>(lbm_sycl_data,i,dev);
if(eov.is_error()){
return eov;
}
}
}
sycl_q.wait();
std::cout<<"Hey4"<<std::endl;
/*
iterator<Desc::D>::apply(
[&](auto& index){
std::cout<<index.at({0u}).get()<<" "<<index.at({1u}).get()<<" "<<lbm_data.get<"info">().at(index).template cast_to<sch::UInt16>().get()<<"\n";
},
{{0u,0u}},
{{dim_x, dim_y}}
);
*/
sycl_q.wait();
return saw::make_void();
}
using FloatT = kel::lbm::sch::Float32;
int main(int argc, char** argv){
auto eov = lbm_main<FloatT,kel::lbm::sch::D2Q9>(argc, argv);
if(eov.is_error()){
auto& err = eov.get_error();
std::cerr<<"[Error] "<<err.get_category();
auto err_msg = err.get_message();
if(err_msg.size() > 0u){
std::cerr<<" - "<<err_msg;
}
std::cerr<<std::endl;
return err.get_id();
}
return 0;
}
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