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authorClaudius "keldu" Holeksa <mail@keldu.de>2026-02-25 20:33:36 +0100
committerClaudius "keldu" Holeksa <mail@keldu.de>2026-02-25 20:33:36 +0100
commit2ac145b3bb6d2de3887ab08e0cf26423b5e6c5ee (patch)
tree982dbf24a97609dee82bf2ebc451140f2c1af89b /examples
parent0e68b9b33fc84528bcef2774b8fe34da5b600b55 (diff)
downloadlibs-lbm-2ac145b3bb6d2de3887ab08e0cf26423b5e6c5ee.tar.gz
Changes to run, reworking meta reporting for easier estimation of
runtime parameters
Diffstat (limited to 'examples')
-rw-r--r--examples/meta/.nix/derivation.nix (renamed from examples/meta_2d/.nix/derivation.nix)0
-rw-r--r--examples/meta/SConscript (renamed from examples/meta_2d/SConscript)4
-rw-r--r--examples/meta/SConstruct (renamed from examples/meta_2d/SConstruct)0
-rw-r--r--examples/meta/meta.cpp96
-rw-r--r--examples/meta_2d/meta_2d.cpp36
-rw-r--r--examples/poiseulle_3d_gpu/sim.cpp2
-rw-r--r--examples/poiseulle_particles_2d_gpu/sim.cpp2
7 files changed, 100 insertions, 40 deletions
diff --git a/examples/meta_2d/.nix/derivation.nix b/examples/meta/.nix/derivation.nix
index 26706e6..26706e6 100644
--- a/examples/meta_2d/.nix/derivation.nix
+++ b/examples/meta/.nix/derivation.nix
diff --git a/examples/meta_2d/SConscript b/examples/meta/SConscript
index f14fd77..066a741 100644
--- a/examples/meta_2d/SConscript
+++ b/examples/meta/SConscript
@@ -20,8 +20,8 @@ env.headers += examples_env.headers;
# Cavity2D
examples_objects = [];
-examples_env.add_source_files(examples_objects, ['meta_2d.cpp'], shared=False);
-examples_env.meta_2d = examples_env.Program('#bin/meta_2d', [examples_objects]);
+examples_env.add_source_files(examples_objects, ['meta.cpp'], shared=False);
+examples_env.meta_2d = examples_env.Program('#bin/meta', [examples_objects]);
# Set Alias
env.examples = [
diff --git a/examples/meta_2d/SConstruct b/examples/meta/SConstruct
index a7201cb..a7201cb 100644
--- a/examples/meta_2d/SConstruct
+++ b/examples/meta/SConstruct
diff --git a/examples/meta/meta.cpp b/examples/meta/meta.cpp
new file mode 100644
index 0000000..5d3aaa4
--- /dev/null
+++ b/examples/meta/meta.cpp
@@ -0,0 +1,96 @@
+#include <kel/lbm/lbm.hpp>
+
+#include <iostream>
+
+namespace sch {
+using namespace saw::schema;
+
+using MetaArgsStruct = Struct<
+ Member<Float64, "dx">,
+ Member<Float64, "dt">,
+ Member<Float64, "kin_vis">,
+ Member<Float64, "char_vel">,
+ Member<Float64, "char_len">
+>;
+
+using MetaArgs = Args<
+ MetaArgsStruct,
+ Tuple<UInt64,UInt64>
+>;
+}
+
+template<
+
+saw::error_or<void> meta_main(int argc, char** argv){
+ using namespace kel::lbm;
+
+ std::string_view cfg_file_name = "config.json";
+ if(argc > 1){
+ cfg_file_name = argv[1];
+ }
+
+ saw::data<MetaArgs> args_dat;
+ {
+ saw::data<MetaArgs, saw::encode::Args> args_enc{argc,argv};
+ saw::codec<MetaArgs, saw::encode::Args> args_codec;
+
+ auto eov = args_codec.decode(args_enc,args_dat);
+ if(eov.is_error()){
+ return eov;
+ }
+
+ auto& args_str = args_dat.template get<"args">();
+ auto& args_pos = args_dat.template get<"positionals">();
+
+ converter<sch::Float64> conv{
+ {args_str.template get<"delta_x">()},
+ {args_str.template get<"delta_t">()}
+ };
+
+ switch(args_pos.get<0u>().get()){
+ case 1u:
+ {
+ }
+ break;
+ case 2u:
+ {
+ switch(args_pos.get<1u>().get()){
+ case 5u:
+ break;
+ case 9u:
+ break;
+ default:
+ return saw::make_error<saw::err::critical>("Second positional needs to be a valid velocity set");
+ }
+ }
+ break;
+ case 3u:
+ {
+
+ }
+ break;
+ default:
+ return saw::make_error<saw::err::critical>("First positional needs to be Dimension 1,2 or 3");
+ }
+ print_lbm_meta<sch::Float64,sch::Descriptor<2,9>>(conv, {args_str.template get<"kinematic_viscosity">()},{args_str.template get<"char_vel">()},{args_str.template get<"char_len">()});
+
+ return saw::make_void();
+}
+
+int main(int argc, char** argv){
+ auto eov = meta_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(not err_msg.empty()){
+ std::cerr<<" - "<<err_msg;
+ }
+
+ std::cerr<<std::endl;
+ }
+
+ return 0;
+}
diff --git a/examples/meta_2d/meta_2d.cpp b/examples/meta_2d/meta_2d.cpp
deleted file mode 100644
index 6d19800..0000000
--- a/examples/meta_2d/meta_2d.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-#include <kel/lbm/lbm.hpp>
-
-#include <iostream>
-
-int main(int argc, char** argv){
- using namespace kel::lbm;
-
- std::string_view cfg_file_name = "config.json";
- if(argc > 1){
- cfg_file_name = argv[1];
- }
-
- auto eo_conf = load_lbm_config<sch::Float64,sch::Descriptor<2,9>>(cfg_file_name);
- if(eo_conf.is_error()){
- auto& err = eo_conf.get_error();
- std::cerr<<"[Error]: "<<err.get_category();
- auto err_msg = err.get_message();
- if(!err_msg.empty()){
- std::cerr<<" - "<<err_msg;
- }
- std::cerr<<std::endl;
-
- return err.get_id();
- }
-
- auto& conf = eo_conf.get_value();
-
- converter<sch::Float64> conv{
- {conf.template get<"delta_x">()},
- {conf.template get<"delta_t">()}
- };
-
- print_lbm_meta<sch::Float64,sch::Descriptor<2,9>>(conv, {conf.template get<"kinematic_viscosity">()});
-
- return 0;
-}
diff --git a/examples/poiseulle_3d_gpu/sim.cpp b/examples/poiseulle_3d_gpu/sim.cpp
index e7294e5..93df1f8 100644
--- a/examples/poiseulle_3d_gpu/sim.cpp
+++ b/examples/poiseulle_3d_gpu/sim.cpp
@@ -274,7 +274,7 @@ saw::error_or<void> lbm_main(int argc, char** argv){
{{1.0}}
};
- print_lbm_meta<T,Desc>(conv,{0.1});
+ print_lbm_meta<T,Desc>(conv,{0.1},{0.01},{1024.0});
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>>>();
diff --git a/examples/poiseulle_particles_2d_gpu/sim.cpp b/examples/poiseulle_particles_2d_gpu/sim.cpp
index ae197f9..01fec89 100644
--- a/examples/poiseulle_particles_2d_gpu/sim.cpp
+++ b/examples/poiseulle_particles_2d_gpu/sim.cpp
@@ -316,7 +316,7 @@ saw::error_or<void> lbm_main(int argc, char** argv){
{{1.0}}
};
- print_lbm_meta<T,Desc>(conv,{0.01});
+ print_lbm_meta<T,Desc>(conv,{0.01},{0.1},{1024.0});
// 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>>>();