summaryrefslogtreecommitdiff
path: root/examples/poiseulle_particles_2d_gpu/sim.cpp
diff options
context:
space:
mode:
authorClaudius "keldu" Holeksa <mail@keldu.de>2026-06-08 20:15:59 +0200
committerClaudius "keldu" Holeksa <mail@keldu.de>2026-06-08 20:15:59 +0200
commit3a27bca74e7645874e52f101d467aff8ff7d78f4 (patch)
treeb5f742bd3f146a9747c159f9fd8d099a6d566c1f /examples/poiseulle_particles_2d_gpu/sim.cpp
parent5ea4875b96bfacd4c5f0125c9e7b64b70f0ccfb9 (diff)
parent932fbf86d60df48623ad5fbc9d60e572bb68ef12 (diff)
downloadlibs-lbm-3a27bca74e7645874e52f101d467aff8ff7d78f4.tar.gz
Merge branch 'dev'HEADmaster
Diffstat (limited to 'examples/poiseulle_particles_2d_gpu/sim.cpp')
-rw-r--r--examples/poiseulle_particles_2d_gpu/sim.cpp259
1 files changed, 10 insertions, 249 deletions
diff --git a/examples/poiseulle_particles_2d_gpu/sim.cpp b/examples/poiseulle_particles_2d_gpu/sim.cpp
index 9375078..3de3cfb 100644
--- a/examples/poiseulle_particles_2d_gpu/sim.cpp
+++ b/examples/poiseulle_particles_2d_gpu/sim.cpp
@@ -1,249 +1,6 @@
-#include <kel/lbm/sycl/lbm.hpp>
-#include <kel/lbm/lbm.hpp>
-#include <kel/lbm/particle.hpp>
-
-#include <forstio/io/io.hpp>
-#include <forstio/remote/filesystem/easy.hpp>
-#include <forstio/codec/json/json.hpp>
-#include <forstio/codec/simple.hpp>
-
-namespace kel {
-namespace lbm {
-
-constexpr uint64_t dim_y = 256ul;
-constexpr uint64_t dim_x = dim_y * 20ul;
-
-constexpr uint64_t particle_amount = 1ul;
-
-namespace sch {
-using namespace saw::schema;
-
-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 ScalarChunk = Chunk<Scalar<T>, 0u, dim_x, dim_y>;
-
-template<typename T, typename Desc>
-using VectorChunk = Chunk<Vector<T,Desc::D>, 0u, dim_x, dim_y>;
-
-template<typename T, typename Desc>
-using ChunkStruct = Struct<
- Member<InfoChunk, "info">,
- Member<DfChunk<T,Desc>, "dfs">,
- Member<DfChunk<T,Desc>, "dfs_old">,
- Member<VectorChunk<T,Desc>, "particle_N">,
- Member<ScalarChunk<T,Desc>, "particle_D">
->;
-
-template<typename T, typename Desc>
-using VelChunk = Chunk<Vector<T,Desc::D>, 0u, dim_x, dim_y>;
-
-template<typename T>
-using RhoChunk = Chunk<Scalar<T>, 0u, dim_x, dim_y>;
-
-template<typename T, typename Desc>
-using MacroStruct = Struct<
- Member<VelChunk<T,Desc>, "velocity">,
- Member<RhoChunk<T>, "density">,
- Member<ScalarChunk<T,Desc>, "porosity">
->;
-
-//template<typename T, typename Desc>
-//using ParticleArray = Array<
-// Particle<T,Desc::D>
-//>;
-}
-
-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
-){
- auto& info_f = fields.template get<"info">();
- auto& porous_f = macros.template get<"porosity">();
- // Set everything as walls
- iterator<Desc::D>::apply(
- [&](auto& index){
- info_f.at(index).set(1u);
- },
- {},
- info_f.get_dims(),
- {}
- );
- // Fluid
- iterator<Desc::D>::apply(
- [&](auto& index){
- info_f.at(index).set(2u);
- },
- {},
- 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_old">();
- auto& rho_f = macros.template get<"density">();
- auto& vel_f = macros.template get<"velocity">();
- 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);
-
- df = eq;
- },
- {},// 0-index
- df_f.get_dims()
- );
-
- iterator<Desc::D>::apply(
- [&](auto& index){
- auto& df = df_f.at(index);
- auto& rho = rho_f.at(index);
- rho.at({}) = {1};
- auto& vel = vel_f.at(index);
- if(info_f.at(index).get() == 2u){
- vel.at({{0u}}) = 0.0;
- }
- auto eq = equilibrium<T,Desc>(rho,vel);
-
- df = eq;
- },
- {},// 0-index
- df_f.get_dims(),
- {{1u,1u}}
- );
-
- iterator<Desc::D>::apply(
- [&](auto& index){
- saw::data<sch::Vector<T,Desc::D>> middle, ind_vec;
- middle.at({{0u}}) = dim_x * 0.25;
- middle.at({{1u}}) = dim_y * 0.5;
-
- ind_vec.at({{0u}}) = index.at({{0u}}).template cast_to<T>();
- ind_vec.at({{1u}}) = index.at({{1u}}).template cast_to<T>();
-
- auto dist = middle - ind_vec;
- auto dist_2 = saw::math::dot(dist,dist);
- if(dist_2.at({}).get() < dim_y*dim_y*0.01){
- porous_f.at(index).at({}) = 0.0;
- }
- },
- {},// 0-index
- df_f.get_dims()
- );
-
- return saw::make_void();
-}
-
-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::UInt64> t_i,
- device& dev
-){
- auto& q = dev.get_handle();
- auto& info_f = fields.template get<"info">();
- auto& porous_f = macros.template get<"porosity">();
-
- // 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;
- if(t_i.get() < target_t_i){
- return 1.0 + (0.0002 / target_t_i) * t_i.get();
- }
- return 1.0002;
- }()
- };
- component<T,Desc,cmpt::ZouHeHorizontal<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;
- for(uint64_t i = 0u; i < Desc::D; ++i){
- index.at({{i}}).set(idx[i]);
- }
-
- auto info = info_f.at(index);
-
- switch(info.get()){
- case 0u:
- break;
- case 1u:
- bb.apply(fields,index,t_i);
- break;
- case 2u:
- collision.apply(fields,macros,index,t_i);
- break;
- case 3u:
- flow_in.apply(fields,index,t_i);
- // equi.apply(fields,index,t_i);
- collision.apply(fields,macros,index,t_i);
- break;
- case 4u:
- flow_out.apply(fields,index,t_i);
- // equi.apply(fields,index,t_i);
- collision.apply(fields,macros,index,t_i);
- break;
- default:
- break;
- }
- });
- }).wait();
-
-
- // Step
- /*
- q.submit([&](acpp::sycl::handler& h){
- // h.depends_on(collision_ev);
- }).wait();
- */
-
- return saw::make_void();
-}
-}
-}
+#include "common.hpp"
+#include "init.hpp"
+#include "step.hpp"
template<typename T, typename Desc>
saw::error_or<void> lbm_main(int argc, char** argv){
@@ -257,7 +14,7 @@ saw::error_or<void> lbm_main(int argc, char** argv){
}
auto& lbm_dir = eo_lbm_dir.get_value();
- auto out_dir = lbm_dir / "poiseulle_particles_2d_hlbm_gpu";
+ auto out_dir = lbm_dir / "poiseulle_particles_2d_gpu" / "hlbm";
{
std::error_code ec;
@@ -279,6 +36,7 @@ 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_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;
@@ -304,7 +62,7 @@ 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_particle_data_ptr);
if(eov.is_error()){
return eov;
}
@@ -318,6 +76,7 @@ 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_particle_data{sycl_q};
sycl_q.wait();
{
@@ -335,13 +94,15 @@ saw::error_or<void> lbm_main(int argc, char** argv){
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{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;
}