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authorClaudius "keldu" Holeksa <mail@keldu.de>2026-08-22 22:24:12 +0200
committerClaudius "keldu" Holeksa <mail@keldu.de>2026-08-22 22:24:25 +0200
commite6168bb3f656ebab9b63be697c79819b08fc1ae0 (patch)
tree0724726c6b16ba27fa7972fffb64501b22e89eda /examples/one_particle_sedimentation/sim.cpp
parent47c1f28230ec96ca446a86ce3af0294837359d94 (diff)
downloadlibs-lbm-e6168bb3f656ebab9b63be697c79819b08fc1ae0.tar.gz
Moved folde
Diffstat (limited to 'examples/one_particle_sedimentation/sim.cpp')
-rw-r--r--examples/one_particle_sedimentation/sim.cpp238
1 files changed, 0 insertions, 238 deletions
diff --git a/examples/one_particle_sedimentation/sim.cpp b/examples/one_particle_sedimentation/sim.cpp
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index b3422a5..0000000
--- a/examples/one_particle_sedimentation/sim.cpp
+++ /dev/null
@@ -1,238 +0,0 @@
-#include "common.hpp"
-#include "init.hpp"
-#include "step.hpp"
-
-#include <forstio/codec/args.hpp>
-
-/**
- * For deciding what parameters to use maybe?
- */
-namespace args {
-using namespace saw::schema;
-
-using LbmArgsStruct = Struct<
- Member<String, "coupling">
->;
-
-using LbmArgs = Args<
- LbmArgsStruct,
- Tuple<>
->;
-}
-
-template<typename T, typename Desc, typename Coll>
-saw::error_or<void> lbm_main(const saw::data<args::LbmArgs>& args){
- using namespace kel::lbm;
-
- auto& an = args.template get<"args">();
-
- 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 / "stdkr_2d_gpu" / an.template get<"coupling">().stl_view();
-
- {
- std::error_code ec;
- std::filesystem::create_directories(out_dir,ec);
- if(ec != std::errc{}){
- return saw::make_error<saw::err::critical>("Could not create output directory");
- }
- }
-
- converter<T> conv {
- // delta_x
- {{0.41 / dim_y}},
- // delta_t
- {{1.067e-4}}
- };
-
- print_lbm_meta<T,Desc>(conv,{1e-3},{1e-4},{0.5 * dim_y});
-
- // 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;
-
- auto eo_aio = saw::setup_async_io();
- if(eo_aio.is_error()){
- return std::move(eo_aio.get_error());
- }
- auto& aio = eo_aio.get_value();
- saw::wait_scope wait{aio.event_loop};
-
- bool krun = true;
- bool print_status = false;
- aio.event_port.on_signal(saw::Signal::Terminate).then([&](){
- krun = false;
- }).detach();
- aio.event_port.on_signal(saw::Signal::User1).then([&](){
- print_status = true;
- }).detach();
-
- device dev;
-
- auto& sycl_q = dev.get_handle();
-
- sycl_q.wait();
- {
- auto eov = init<T,Desc,Coll>(conv,*lbm_data_ptr,*lbm_macro_data_ptr,*lbm_particle_data_ptr);
- if(eov.is_error()){
- return eov;
- }
- }
- {
- auto eov = write_vtk_file(out_dir,"initial_state",0u,*lbm_data_ptr);
- if(eov.is_error()){
- return eov;
- }
- }
-
- 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();
-
- {
- auto eov = dev.copy_to_device(*lbm_data_ptr,lbm_sycl_data);
- if(eov.is_error()){
- return eov;
- }
- }
- {
- auto eov = dev.copy_to_device(*lbm_macro_data_ptr,lbm_sycl_macro_data);
- if(eov.is_error()){
- 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};
-
- auto& info_f = lsd_view.template get<"info">();
-
- 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);
- if(eov.is_error()){
- return eov;
- }
- }
-
- sycl_q.wait();
- if(i.get() % 64u == 0u){
- {
- auto eov = dev.copy_to_host(lbm_sycl_macro_data,*lbm_macro_data_ptr);
- if(eov.is_error()){
- return eov;
- }
- }
- {
- auto eov = write_csv_file(out_dir,"stdkr_2d",i.get(), *lbm_macro_data_ptr);
- if(eov.is_error()){
- return eov;
- }
- }
- }
- // Stream
- sycl_q.submit([&](acpp::sycl::handler& h){
- component<T,Desc,cmpt::Stream,encode::Sycl<saw::encode::Native>> stream;
-
- 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;
- for(uint64_t i = 0u; i < Desc::D; ++i){
- index.at({{i}}).set(idx[i]);
- }
-
- auto info = info_f.at(index).get();
-
- if(info > 0u){
- stream.apply(lsd_view,index,i);
- }
- });
- }).wait();
- wait.poll();
-
- if(print_status){
- std::cout<<"Status: "<<i.get()<<" of "<<time_steps.get()<<" - "<<(i.template cast_to<sch::Float64>().get() * 100 / time_steps.get())<<"%"<<std::endl;
- print_status = false;
- }
- print_progress_bar(i.get(), time_steps.get()-1u);
- }
- // After Loop
- sycl_q.wait();
- {
- auto eov = dev.copy_to_host(lbm_sycl_macro_data,*lbm_macro_data_ptr);
- if(eov.is_error()){
- return eov;
- }
- }
- {
- auto eov = write_vtk_file(out_dir,std::string{"stdkr_2d_"}+an.template get<"coupling">().stl_string(),time_steps.get(), *lbm_macro_data_ptr);
- if(eov.is_error()){
- return eov;
- }
- }
-
- sycl_q.wait();
- return saw::make_void();
-}
-
-using FloatT = kel::lbm::sch::Float32;
-using DescT = kel::lbm::sch::D2Q9;
-
-saw::error_or<void> k_main(int argc, char** argv){
- using namespace kel::lbm;
-
- saw::data<args::LbmArgs> args;
- {
- auto eov = saw::parse_args(args,argc,argv);
- if(eov.is_error()){
- return eov;
- }
- }
- auto& an = args.template get<"args">();
- auto& coupling = an.template get<"coupling">();
-
- if(coupling.stl_view() == "hlbm"){
- return lbm_main<FloatT,DescT,method::Hlbm>(args);
- } else if(coupling.stl_view() == "fplbm"){
- return lbm_main<FloatT,DescT,method::FpLbm>(args);
- } else if(coupling.stl_view() == "psm"){
- return lbm_main<FloatT,DescT,method::Psm>(args);
- }
-
- return saw::make_error<saw::err::critical>("Invalid coupling");
-}
-
-
-int main(int argc, char** argv){
- auto eov = k_main(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;
-}