4 files changed, 214 insertions, 2 deletions
diff --git a/poc/triangle_stream/.nix/derivation.nix b/poc/triangle_stream/.nix/derivation.nix
new file mode 100644
index 0000000..c86fc0b
--- /dev/null
+++ b/poc/triangle_stream/.nix/derivation.nix
@@ -0,0 +1,41 @@
+{ lib
+, stdenv
+, scons
+, clang-tools
+, forstio
+, python3
+, pname
+, version
+, adaptive-cpp
+, kel
+}:
+
+stdenv.mkDerivation {
+	pname = pname + "-poc-" + "triangle_stream";
+	inherit version;
+	src = ./..;
+
+	nativeBuildInputs = [
+		scons
+		clang-tools
+		python3
+	];
+
+	buildInputs = [
+		forstio.core
+		forstio.async
+		forstio.codec
+		forstio.codec-unit
+		forstio.io
+    forstio.remote
+    forstio.remote-filesystem
+		forstio.codec-json
+		adaptive-cpp
+		kel.lbm.core
+		kel.lbm.sycl
+	];
+
+	preferLocalBuild = true;
+
+	outputs = [ "out" "dev" ];
+}
diff --git a/poc/triangle_stream/SConscript b/poc/triangle_stream/SConscript
new file mode 100644
index 0000000..992fc60
--- /dev/null
+++ b/poc/triangle_stream/SConscript
@@ -0,0 +1,34 @@
+#!/bin/false
+
+import os
+import os.path
+import glob
+
+
+Import('env')
+
+dir_path = Dir('.').abspath
+
+# Environment for base library
+examples_env = env.Clone();
+examples_env['CXX'] = 'syclcc-clang';
+examples_env['CXXFLAGS'] += ['-O3'];
+
+examples_env.sources = sorted(glob.glob(dir_path + "/*.cpp"))
+examples_env.headers = sorted(glob.glob(dir_path + "/*.hpp"))
+
+env.sources += examples_env.sources;
+env.headers += examples_env.headers;
+
+# Cavity2D
+examples_objects = [];
+examples_env.add_source_files(examples_objects, ['sim.cpp'], shared=False);
+examples_env.poiseulle_2d_gpu = examples_env.Program('#bin/kel_lbm_triangle_stream', [examples_objects]);
+
+# Set Alias
+env.examples = [
+	examples_env.poiseulle_2d_gpu
+];
+env.Alias('examples', env.examples);
+env.targets += ['examples'];
+env.Install('$prefix/bin/', env.examples);
diff --git a/poc/triangle_stream/SConstruct b/poc/triangle_stream/SConstruct
new file mode 100644
index 0000000..0611b67
--- /dev/null
+++ b/poc/triangle_stream/SConstruct
@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+
+import sys
+import os
+import os.path
+import glob
+import re
+
+
+if sys.version_info < (3,):
+    def isbasestring(s):
+        return isinstance(s,basestring)
+else:
+    def isbasestring(s):
+        return isinstance(s, (str,bytes))
+
+def add_kel_source_files(self, sources, filetype, lib_env=None, shared=False, target_post=""):
+
+    if isbasestring(filetype):
+        dir_path = self.Dir('.').abspath
+        filetype = sorted(glob.glob(dir_path+"/"+filetype))
+
+    for path in filetype:
+        target_name = re.sub( r'(.*?)(\.cpp|\.c\+\+)', r'\1' + target_post, path )
+        if shared:
+            target_name+='.os'
+            sources.append( self.SharedObject( target=target_name, source=path ) )
+        else:
+            target_name+='.o'
+            sources.append( self.StaticObject( target=target_name, source=path ) )
+    pass
+
+def isAbsolutePath(key, dirname, env):
+	assert os.path.isabs(dirname), "%r must have absolute path syntax" % (key,)
+
+env_vars = Variables(
+	args=ARGUMENTS
+)
+
+env_vars.Add('prefix',
+	help='Installation target location of build results and headers',
+	default='/usr/local/',
+	validator=isAbsolutePath
+)
+
+env_vars.Add('build_examples',
+	help='If examples should be built',
+	default="true"
+)
+
+env=Environment(ENV=os.environ, variables=env_vars, CPPPATH=[],
+    CPPDEFINES=['SAW_UNIX'],
+    CXXFLAGS=[
+        '-std=c++20',
+        '-g',
+        '-Wall',
+        '-Wextra'
+    ],
+    LIBS=[
+        'forstio-core',
+        'forstio-async',
+        'forstio-io'
+    ]
+);
+env.__class__.add_source_files = add_kel_source_files
+env.Tool('compilation_db');
+env.cdb = env.CompilationDatabase('compile_commands.json');
+
+env.objects = [];
+env.sources = [];
+env.headers = [];
+env.targets = [];
+
+Export('env')
+SConscript('SConscript')
+
+env.Alias('cdb', env.cdb);
+env.Alias('all', [env.targets]);
+env.Default('all');
+
+env.Alias('install', '$prefix')
diff --git a/poc/triangle_stream/sim.cpp b/poc/triangle_stream/sim.cpp
index c96d7d0..36986e4 100644
--- a/poc/triangle_stream/sim.cpp
+++ b/poc/triangle_stream/sim.cpp
@@ -1,14 +1,70 @@
+#include <kel/lbm/lbm.hpp>
+
+namespace kel {
+namespace lbm {
+
+constexpr uint64_t dim_y = 256ul;
+constexpr uint64_t dim_x = dim_y * 20ul;
+
+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">
+>;
+
+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">
+>;
+
+//template<typename T, typename Desc>
+//using ParticleArray = Array<
+//	Particle<T,Desc::D>
+//>;
+}
+
+template<typename T, typename Desc>
 void init(){
 }
 
+template<typename T, typename Desc>
 saw::error_or<void> kmain(int argc, char** argv){
-	using namespace kel;
+	using dfi = df_info<T,Desc>;
+
+	(void) argc;
+	(void) argv;
 
 	return saw::make_void();
 }
 
+}
+}
+
 int main(int argc, char** argv){
-	auto eov = kmain(argc,argv);
+	using namespace kel::lbm;
+	auto eov = kmain<sch::Float32,sch::D2Q9>(argc,argv);
 	if(eov.is_error()){
 		auto& err = eov.get_error();