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-rw-r--r--boltzgen/kernel/template/collide_and_stream.cpp.mako32
1 files changed, 32 insertions, 0 deletions
diff --git a/boltzgen/kernel/template/collide_and_stream.cpp.mako b/boltzgen/kernel/template/collide_and_stream.cpp.mako
new file mode 100644
index 0000000..71c62b7
--- /dev/null
+++ b/boltzgen/kernel/template/collide_and_stream.cpp.mako
@@ -0,0 +1,32 @@
+void collide_and_stream( ${float_type}* f_next,
+ const ${float_type}* f_prev,
+ std::size_t gid)
+{
+ ${float_type}* preshifted_f_next = f_next + gid*${layout.gid_offset()};
+ const ${float_type}* preshifted_f_prev = f_prev + gid*${layout.gid_offset()};
+
+% for i, c_i in enumerate(descriptor.c):
+ const ${float_type} f_curr_${i} = preshifted_f_prev[${layout.pop_offset(i) + layout.neighbor_offset(-c_i)}];
+% endfor
+
+% for i, expr in enumerate(moments_subexpr):
+ const ${float_type} ${expr[0]} = ${ccode(expr[1])};
+% endfor
+
+% for i, expr in enumerate(moments_assignment):
+ ${float_type} ${ccode(expr)}
+% endfor
+
+% for i, expr in enumerate(collision_subexpr):
+ const ${float_type} ${expr[0]} = ${ccode(expr[1])};
+% endfor
+
+% for i, expr in enumerate(collision_assignment):
+ const ${float_type} ${ccode(expr)}
+% endfor
+
+% for i, expr in enumerate(collision_assignment):
+ preshifted_f_next[${layout.pop_offset(i)}] = f_next_${i};
+% endfor
+}
+