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#include "common.hpp"
#include "init.hpp"
#include "step.hpp"
template<typename T, typename Desc>
saw::error_or<void> lbm_main(int argc, char** argv){
using namespace kel::lbm;
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 / "poiseulle_particles_2d_gpu";
{
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
{{1.0}},
// delta_t
{{1.0}}
};
print_lbm_meta<T,Desc>(conv,{0.1},{1e-4},{0.4 * 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 = setup_initial_conditions<T,Desc>(*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;
}
}
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,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;
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);
if(info.get() > 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,"m",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;
int main(int argc, char** argv){
auto eov = lbm_main<FloatT,kel::lbm::sch::D2Q9>(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;
}
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