From 44cb41bbe6128f2c7ca92b06e2267d52e3121721 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Wed, 15 Jul 2026 15:39:41 +0200
Subject: Preping two way

---
 .../moving_poiseulle_particles_2d_hlbm_gpu/sim.cpp | 81 +++++++++++++---------
 1 file changed, 50 insertions(+), 31 deletions(-)

(limited to 'examples/moving_poiseulle_particles_2d_hlbm_gpu')

diff --git a/examples/moving_poiseulle_particles_2d_hlbm_gpu/sim.cpp b/examples/moving_poiseulle_particles_2d_hlbm_gpu/sim.cpp
index daa397a..75dd666 100644
--- a/examples/moving_poiseulle_particles_2d_hlbm_gpu/sim.cpp
+++ b/examples/moving_poiseulle_particles_2d_hlbm_gpu/sim.cpp
@@ -57,14 +57,14 @@ using MacroStruct = Struct<
 //>;
 
 template<typename T, typename Desc>
-using ParticleSpheroidGroup = ParticleGroup<T,Desc::D,ParticleCollisionSpheroid<T,2.0>>;
+using ParticleSpheroidGroup = ParticleGroup<T,Desc::D,1u,coll::Spheroid<T>>;
 }
 
 template<typename T, typename Desc>
 saw::error_or<void> setup_initial_conditions(
-		saw::data<sch::ChunkStruct<T,Desc>>& fields,
-		saw::data<sch::MacroStruct<T,Desc>>& macros,
-		saw::data<sch::ParticleSpheroidGroup<T,Desc>>& particles
+	saw::data<sch::ChunkStruct<T,Desc>>& fields,
+	saw::data<sch::MacroStruct<T,Desc>>& macros,
+	saw::data<sch::ParticleSpheroidGroup<T,Desc>>& particles
 ){
 	auto& info_f = fields.template get<"info">();
 	auto& porous_f = macros.template get<"porosity">();
@@ -145,6 +145,12 @@ saw::error_or<void> setup_initial_conditions(
 		{{1u,1u}}
 	);
 
+	saw::data<sch::Scalar<T>> rad;
+	rad.at({}) = 2.0f;
+	saw::data<sch::Scalar<T>> dense;
+	dense.at({}) = 1.0f;
+	particles = create_spheroid_particle_group<T,Desc::D,1u>(rad,dense,{16u});
+
 	return saw::make_void();
 }
 
@@ -152,7 +158,7 @@ template<typename T, typename Desc>
 saw::error_or<void> step(
 		saw::data<sch::Ptr<sch::ChunkStruct<T,Desc>>,encode::Sycl<saw::encode::Native>>& fields,
 		saw::data<sch::Ptr<sch::MacroStruct<T,Desc>>,encode::Sycl<saw::encode::Native>>& macros,
-		saw::data<sch::Ptr<sch::ParticleSpheroidGroup<T,Desc>>,encode::Sycl<saw::encode::Native>>& particles
+		saw::data<sch::Ptr<sch::ParticleSpheroidGroup<T,Desc>>,encode::Sycl<saw::encode::Native>>& particles,
 		saw::data<sch::UInt64> t_i,
 		device& dev
 ){
@@ -160,26 +166,35 @@ saw::error_or<void> step(
 	auto& info_f = fields.template get<"info">();
 	auto& porous_f = macros.template get<"porosity">();
 
+	q.submit([&](acpp::sycl::handler& h){
+		component<T,Desc,cmpt::HlbmParticle,encode::Sycl<saw::encode::Native>> hlbm_one_part;
+
+		h.parallel_for(acpp::sycl::range<1u>{1u}, [=](acpp::sycl::id<1u> idx){
+			saw::data<sch::FixedArray<sch::UInt64,1u>> index;
+			for(uint64_t i = 0u; i < 1u; ++i){
+				index.at({{i}}).set(idx[i]);
+			}
+
+			hlbm_one_part.apply(fields,macros,particles,index,t_i);
+
+			// auto aabb = particle_aabb<>::cacl();
+
+		});
+	}).wait();
+
 	// auto coll_ev = 
 	q.submit([&](acpp::sycl::handler& h){
 		component<T,Desc,cmpt::Hlbm,encode::Sycl<saw::encode::Native>> collision{0.65};
 		component<T,Desc,cmpt::BounceBack,encode::Sycl<saw::encode::Native>> bb;
 		component<T,Desc,cmpt::AntiBounceBack<0u>,encode::Sycl<saw::encode::Native>> abb;
 
-		saw::data<sch::Scalar<T>> rho_b;
-		rho_b.at({}) = 1.0;
-		saw::data<sch::Vector<T,Desc::D>> vel_b;
-		vel_b.at({{0u}}) = 0.015;
-
-		component<T,Desc,cmpt::Equilibrium,encode::Sycl<saw::encode::Native>> equi{rho_b,vel_b};
-
 		component<T,Desc,cmpt::ZouHeHorizontal<true>,encode::Sycl<saw::encode::Native>> flow_in{
 			[&](){
-				uint64_t target_t_i = 64u;
+				uint64_t target_t_i = 8u;
 				if(t_i.get() < target_t_i){
-					return 1.0 + (0.0002 / target_t_i) * t_i.get();
+					return 1.0 + (0.0005 / target_t_i) * t_i.get();
 				}
-				return 1.0002;
+				return 1.0005;
 			}()
 		};
 		component<T,Desc,cmpt::ZouHeHorizontal<false>,encode::Sycl<saw::encode::Native>> flow_out{1.0};
@@ -265,6 +280,8 @@ saw::error_or<void> lbm_main(int argc, char** argv){
 	// 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_parts_data_ptr = saw::heap<saw::data<sch::ParticleSpheroidGroup<T,Desc>>>();
+	//saw::data<sch::Ptr<sch::ParticleSpheroidGroup<T,Desc>>,encode::Sycl<saw::encode::Native>>& particles
 	
 	std::cout<<"Estimated Bytes: "<<memory_estimate<sch::ChunkStruct<T,Desc>,sch::MacroStruct<T,Desc>>().get()<<std::endl;
 
@@ -290,7 +307,7 @@ saw::error_or<void> lbm_main(int argc, char** argv){
 
 	sycl_q.wait();
 	{
-		auto eov = setup_initial_conditions<T,Desc>(*lbm_data_ptr,*lbm_macro_data_ptr);
+		auto eov = setup_initial_conditions<T,Desc>(*lbm_data_ptr,*lbm_macro_data_ptr,*lbm_parts_data_ptr);
 		if(eov.is_error()){
 			return eov;
 		}
@@ -304,6 +321,7 @@ saw::error_or<void> lbm_main(int argc, char** argv){
 
 	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_parts_data{sycl_q};
 	sycl_q.wait();
 
 	{
@@ -318,35 +336,30 @@ saw::error_or<void> lbm_main(int argc, char** argv){
 			return eov;
 		}
 	}
+	{
+		auto eov = dev.copy_to_device(*lbm_parts_data_ptr,lbm_sycl_parts_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_parts_data);
+
 	saw::data<sch::UInt64> time_steps{16u*4096ul};
 	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>(lsd_view,lsdm_view,i,dev);
+			auto eov = step<T,Desc>(lsd_view,lsdm_view,lsdp_view,i,dev);
 			if(eov.is_error()){
 				return eov;
 			}
 		}
 		sycl_q.wait();
-		if(i.get() % 32u == 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,"m",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;
@@ -386,6 +399,12 @@ saw::error_or<void> lbm_main(int argc, char** argv){
 			return eov;
 		}
 	}
+	{
+		auto eov = write_csv_file(out_dir,"m",time_steps.get(), *lbm_macro_data_ptr);
+		if(eov.is_error()){
+			return eov;
+		}
+	}
 
 	sycl_q.wait();
 	return saw::make_void();
-- 
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