Generate basic example in plain C++

An attempt to produce a minimal LBM implementation to benchmark various
memory and vectorization schemes on the CPU.

1 files changed, 32 insertions, 0 deletions

diff --git a/standalone_cpp_codegen.py b/standalone_cpp_codegen.py
new file mode 100644
index 0000000..b38898a
--- /dev/null
+++ b/standalone_cpp_codegen.py
@@ -0,0 +1,32 @@
+import sympy
+from mako.template import Template
+from pathlib import Path
+
+from simulation         import Geometry
+from symbolic.generator import LBM
+
+import symbolic.D2Q9 as D2Q9
+
+lbm = LBM(D2Q9)
+
+moments = lbm.moments(optimize = False)
+collide = lbm.bgk(f_eq = lbm.equilibrium(), tau = 0.6)
+
+geometry = Geometry(512, 512)
+
+program_src = Template(filename = str(Path(__file__).parent/'template/standalone.mako')).render(
+    descriptor = lbm.descriptor,
+    geometry   = geometry,
+
+    steps = 100,
+
+    moments_subexpr    = moments[0],
+    moments_assignment = moments[1],
+    collide_subexpr    = collide[0],
+    collide_assignment = collide[1],
+
+    float_type = 'double',
+    ccode = sympy.ccode
+)
+
+print(program_src)