From 2bae8b93faf614b1acb5df7269087b4f3786da5a Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Tue, 30 Jun 2026 23:52:02 +0200
Subject: Final run

---
 examples/stokes_drag_particle_2d_psm_gpu/sim.cpp | 39 +++++++++++-------------
 1 file changed, 18 insertions(+), 21 deletions(-)

(limited to 'examples/stokes_drag_particle_2d_psm_gpu/sim.cpp')

diff --git a/examples/stokes_drag_particle_2d_psm_gpu/sim.cpp b/examples/stokes_drag_particle_2d_psm_gpu/sim.cpp
index 0ff6e6b..6942cc7 100644
--- a/examples/stokes_drag_particle_2d_psm_gpu/sim.cpp
+++ b/examples/stokes_drag_particle_2d_psm_gpu/sim.cpp
@@ -48,6 +48,7 @@ template<typename T, typename Desc>
 using MacroStruct = Struct<
 	Member<VelChunk<T,Desc>, "velocity">,
 	Member<RhoChunk<T>, "density">,
+	Member<VelChunk<T,Desc>, "force">,
 	Member<ScalarChunk<T,Desc>, "porosity">
 >;
 
@@ -196,12 +197,16 @@ saw::error_or<void> step(
 		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};
+		saw::data<sch::Scalar<T>> eps;
+		eps.at({}).set(1.5f);
+		saw::data<sch::Scalar<T>> rad;
+		rad.at({}).set(dim_y*0.1*0.25);
+		saw::data<sch::Vector<T,Desc::D>> p_pos;
+		{
+			p_pos.at({{0u}}) = dim_x * 0.5;
+			p_pos.at({{1u}}) = dim_y * 0.5;
+		}
+		component<T,Desc,cmpt::OneParticleAt,encode::Sycl<saw::encode::Native>> opa{p_pos,rad,eps};
 
 		component<T,Desc,cmpt::ZouHeHorizontal<true>,encode::Sycl<saw::encode::Native>> flow_in{
 			[&](){
@@ -230,6 +235,7 @@ saw::error_or<void> step(
 					abb.apply(fields,index,t_i);
 				break;
 				case 2u:
+					opa.apply(macros,index,t_i);
 					collision.apply(fields,macros,index,t_i);
 					break;
 				case 3u:
@@ -385,20 +391,6 @@ saw::error_or<void> lbm_main(int argc, char** argv){
 			}
 		}
 		*/
-		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;
@@ -438,7 +430,12 @@ 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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