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% if float_type == 'double':
#if defined(cl_khr_fp64)
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
#elif defined(cl_amd_fp64)
#pragma OPENCL EXTENSION cl_amd_fp64 : enable
#endif
% endif
__kernel void equilibrilize(__global ${float_type}* f_next,
__global ${float_type}* f_prev)
{
const unsigned int gid = ${layout.gid()};
__global ${float_type}* preshifted_f_next = f_next + gid;
__global ${float_type}* preshifted_f_prev = f_prev + gid;
% for i, w_i in enumerate(descriptor.w):
preshifted_f_next[${layout.pop_offset(i)}] = ${w_i}.f;
preshifted_f_prev[${layout.pop_offset(i)}] = ${w_i}.f;
% endfor
}
__kernel void collide_and_stream(__global ${float_type}* f_next,
__global ${float_type}* f_prev,
__global int* material,
unsigned int time)
{
const unsigned int gid = ${layout.gid()};
const int m = material[gid];
if ( m == 0 ) {
return;
}
__global ${float_type}* preshifted_f_next = f_next + gid;
__global ${float_type}* preshifted_f_prev = f_prev + gid;
% 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
${boundary_src}
% 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} ${ccode(expr)}
% endfor
% for i in range(0,descriptor.q):
preshifted_f_next[${layout.pop_offset(i)}] = f_next_${i};
% endfor
}
__kernel void collect_moments(__global ${float_type}* f,
__global ${float_type}* moments)
{
const unsigned int gid = ${layout.gid()};
__global ${float_type}* preshifted_f = f + gid;
% for i in range(0,descriptor.q):
const ${float_type} f_curr_${i} = preshifted_f[${layout.pop_offset(i)}];
% endfor
% for i, expr in enumerate(moments_subexpr):
const ${float_type} ${expr[0]} = ${ccode(expr[1])};
% endfor
% for i, expr in enumerate(moments_assignment):
moments[${layout.pop_offset(i)} + gid] = ${ccode(expr.rhs)};
% endfor
}
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