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| author | Claudius "keldu" Holeksa <mail@keldu.de> | 2026-08-20 18:59:00 +0200 |
|---|---|---|
| committer | Claudius "keldu" Holeksa <mail@keldu.de> | 2026-08-20 18:59:00 +0200 |
| commit | 5cd236287542b47016fe3c49aa56bb66d74c4ad7 (patch) | |
| tree | a3eaf3b0419a1c5897c344a949cf5775b1637afc /examples/stdkr_2d_bgk | |
| parent | 5dade743e7c1e6b0b6001b4265bf792f0b05f93a (diff) | |
| download | libs-lbm-5cd236287542b47016fe3c49aa56bb66d74c4ad7.tar.gz | |
Feierabend
Diffstat (limited to 'examples/stdkr_2d_bgk')
| -rw-r--r-- | examples/stdkr_2d_bgk/init.hpp | 46 | ||||
| -rw-r--r-- | examples/stdkr_2d_bgk/sim.cpp | 13 | ||||
| -rw-r--r-- | examples/stdkr_2d_bgk/step.hpp | 3 |
3 files changed, 25 insertions, 37 deletions
diff --git a/examples/stdkr_2d_bgk/init.hpp b/examples/stdkr_2d_bgk/init.hpp index abc2a26..3127c88 100644 --- a/examples/stdkr_2d_bgk/init.hpp +++ b/examples/stdkr_2d_bgk/init.hpp @@ -14,7 +14,6 @@ saw::error_or<void> init( (void) conv; auto& info_f = fields.template get<"info">(); - auto& porous_f = macros.template get<"porosity">(); // Set everything as walls iterator<Desc::D>::apply( [&](auto& index){ @@ -57,13 +56,11 @@ saw::error_or<void> init( auto& df_f = fields.template get<"dfs_old">(); auto& rho_f = macros.template get<"density">(); auto& vel_f = macros.template get<"momentum">(); - auto& por_f = macros.template get<"porosity">(); iterator<Desc::D>::apply( [&](auto& index){ auto& df = df_f.at(index); auto& rho = rho_f.at(index); - por_f.at(index).at({}) = {1}; rho.at({}) = {1}; auto& vel = vel_f.at(index); auto eq = equilibrium<T,Desc>(rho,vel); @@ -92,31 +89,32 @@ saw::error_or<void> init( {{1u,1u}} ); - { + iterator<Desc::D>::apply( + [&](const auto& index){ + auto& info = info_f.at(index); + saw::data<sch::Scalar<T>> radius_p; + radius_p.at({}).set(conv.meter_si_to_lbm({{0.05}}).handle().get()); + saw::data<sch::Scalar<T>> dense_p; + dense_p.at({}).set(1); - } - { - saw::data<sch::Scalar<T>> radius_p; - radius_p.at({}).set(conv.meter_si_to_lbm({{0.05}}).handle().get()); - std::cout<<"RADIUS: "<<radius_p.at({}).get()<<std::endl; - saw::data<sch::Scalar<T>> dense_p; - dense_p.at({}).set(1); - /* - auto& parts = particles.template get<"particles">(); + saw::data<sch::Vector<T,Desc::D>> middle,ind_vec; + middle.at({{0u}}) = conv.meter_si_to_lbm({{0.16}}).handle(); + middle.at({{1u}}) = conv.meter_si_to_lbm({{0.2}}).handle(); - { - auto& p = parts.at({0u}); - auto& prb = p.template get<"rigid_body">(); - auto& p_pos = prb.template get<"position">(); - auto& p_posold = prb.template get<"position_old">(); - p_pos.at({{0u}}) = conv.meter_si_to_lbm({{0.16}}).handle(); - p_pos.at({{1u}}) = conv.meter_si_to_lbm({{0.2}}).handle(); + for(uint64_t i{0u}; i < Desc::D; ++i){ + ind_vec.at({{i}}) = index.at({i}).template cast_to<T>(); + } - p_posold = p_pos; - } - */ - } + auto dist = ind_vec - middle; + auto dist_2 = saw::math::dot(dist,dist); + if(dist_2.at({}) < radius_p.at({}) * radius_p.at({})){ + info_f.at(index) = 1u; + } + }, + {},// 0-index + df_f.get_dims() + ); return saw::make_void(); } diff --git a/examples/stdkr_2d_bgk/sim.cpp b/examples/stdkr_2d_bgk/sim.cpp index 558a219..36147d5 100644 --- a/examples/stdkr_2d_bgk/sim.cpp +++ b/examples/stdkr_2d_bgk/sim.cpp @@ -56,7 +56,6 @@ saw::error_or<void> lbm_main(const saw::data<args::LbmArgs>& args){ // saw::data<sch::FixedArray<sch::UInt64,Desc::D>> meta{{dim_x,dim_y}}; auto lbm_data_ptr = saw::heap<saw::data<sch::ChunkStruct<T,Desc>>>(); auto lbm_macro_data_ptr = saw::heap<saw::data<sch::MacroStruct<T,Desc>>>(); - auto lbm_particle_data_ptr = saw::heap<saw::data<sch::ParticleSpheroidGroup<T,Desc>>>(); std::cout<<"Estimated Bytes: "<<memory_estimate<sch::ChunkStruct<T,Desc>,sch::MacroStruct<T,Desc>>().get()<<std::endl; @@ -82,7 +81,7 @@ saw::error_or<void> lbm_main(const saw::data<args::LbmArgs>& args){ sycl_q.wait(); { - auto eov = init<T,Desc,Coll>(conv,*lbm_data_ptr,*lbm_macro_data_ptr,*lbm_particle_data_ptr); + auto eov = init<T,Desc,Coll>(conv,*lbm_data_ptr,*lbm_macro_data_ptr); if(eov.is_error()){ return eov; } @@ -96,7 +95,6 @@ saw::error_or<void> lbm_main(const saw::data<args::LbmArgs>& args){ saw::data<sch::ChunkStruct<T,Desc>, encode::Sycl<saw::encode::Native>> lbm_sycl_data{sycl_q}; saw::data<sch::MacroStruct<T,Desc>, encode::Sycl<saw::encode::Native>> lbm_sycl_macro_data{sycl_q}; - saw::data<sch::ParticleSpheroidGroup<T,Desc>, encode::Sycl<saw::encode::Native>> lbm_sycl_particle_data{sycl_q}; sycl_q.wait(); { @@ -111,16 +109,9 @@ saw::error_or<void> lbm_main(const saw::data<args::LbmArgs>& args){ return eov; } } - { - auto eov = dev.copy_to_device(*lbm_particle_data_ptr,lbm_sycl_particle_data); - if(eov.is_error()){ - return eov; - } - } sycl_q.wait(); auto lsd_view = make_view(lbm_sycl_data); auto lsdm_view = make_view(lbm_sycl_macro_data); - auto lsdp_view = make_view(lbm_sycl_particle_data); saw::data<sch::UInt64> time_steps{64u*1024ul}; @@ -129,7 +120,7 @@ saw::error_or<void> lbm_main(const saw::data<args::LbmArgs>& args){ for(saw::data<sch::UInt64> i{0u}; i < time_steps and krun; ++i){ // BC + Collision { - auto eov = step<T,Desc,Coll>(conv,lsd_view,lsdm_view,lsdp_view,i,dev); + auto eov = step<T,Desc,Coll>(conv,lsd_view,lsdm_view,i,dev); if(eov.is_error()){ return eov; } diff --git a/examples/stdkr_2d_bgk/step.hpp b/examples/stdkr_2d_bgk/step.hpp index 667f5a3..cbf9f43 100644 --- a/examples/stdkr_2d_bgk/step.hpp +++ b/examples/stdkr_2d_bgk/step.hpp @@ -17,13 +17,12 @@ saw::error_or<void> step( auto& q = dev.get_handle(); auto& info_f = fields.template get<"info">(); - auto& porous_f = macros.template get<"porosity">(); { q.submit([&](acpp::sycl::handler& h){ component<T,Desc,cmpt::BGK,encode::Sycl<saw::encode::Native>> collision{1.0}; component<T,Desc,cmpt::BounceBack,encode::Sycl<saw::encode::Native>> bb; - component<T,Desc,cmpt::ZouHeHorizontal<false>,encode::Sycl<saw::encode::Native>> flow_out{1.0}; + component<T,Desc,cmpt::ZouHePressureX<false>,encode::Sycl<saw::encode::Native>> flow_out{1.0}; h.parallel_for(acpp::sycl::range<Desc::D>{dim_x,dim_y}, [=](acpp::sycl::id<Desc::D> idx){ saw::data<sch::FixedArray<sch::UInt64,Desc::D>> index; |
