diff options
| -rw-r--r-- | boltzgen/kernel/template/basic.cpp.mako | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/boltzgen/kernel/template/basic.cpp.mako b/boltzgen/kernel/template/basic.cpp.mako index 3e16d2e..468a292 100644 --- a/boltzgen/kernel/template/basic.cpp.mako +++ b/boltzgen/kernel/template/basic.cpp.mako @@ -43,6 +43,42 @@ void collide_and_stream( ${float_type}* f_next, % endfor } +void velocity_momenta_boundary( ${float_type}* f_next, + const ${float_type}* f_prev, + std::size_t gid, + ${float_type} velocity[${descriptor.d}]) +{ + ${float_type}* preshifted_f_next = f_next + gid*${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(moments_assignment[1:]): + ${expr.lhs} = velocity[${i}]; +% 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 +} + void collect_moments(const ${float_type}* f, std::size_t gid, ${float_type}& rho, |