def cal_nb_generate_local(n_bodies, dt, steps):
code = env.InstructionStream()
cal.set_active_code(code)
fn_bodies = float(n_bodies)
steps = float(steps)
r_count = code.acquire_register()
r_step = code.acquire_register()
r_lpos = code.acquire_register()
r_rpos = code.acquire_register()
r_force = code.acquire_register()
r_diff = code.acquire_register()
r_dist_vec = code.acquire_register()
r_dist = code.acquire_register()
r_force_tmp = code.acquire_register()
r_force_vec = code.acquire_register()
r_vel = code.acquire_register()
print "fn_bodies", fn_bodies
code.add("dcl_input_position_interp(linear_noperspective) v0.xy__")
#cal.dcl_input(reg.v0.x___, USAGE=cal.usage.pos, INTERP=cal.interp.linear_noperspective)
r_numsteps = code.acquire_register((steps,) * 4)
r_bodies = code.acquire_register((fn_bodies,) * 4)
#r_bodiesquare = code.acquire_register((float(fn_bodies**2),) * 4)
r_G = code.acquire_register((G,) * 4)
r_dt = code.acquire_register((dt,) * 4)
cal.dcl_output(reg.o0, USAGE=cal.usage.generic)
cal.dcl_output(reg.o1, USAGE=cal.usage.generic)
cal.dcl_output(reg.o2, USAGE=cal.usage.generic)
cal.dcl_resource(0, cal.pixtex_type.twod, cal.fmt.float, UNNORM=True) # positions
cal.dcl_resource(1, cal.pixtex_type.twod, cal.fmt.float, UNNORM=True) # velocities
r_foo = code.acquire_register()
cal.mov(r_foo, r_foo('0000'))
r_gpos = code.acquire_register()
cal.mad(r_gpos, reg.v0.y, r_bodies.x, reg.v0.x)
r_gvel = code.acquire_register()
cal.mad(r_gvel, r_bodies.x, r_bodies.x, r_gpos)
cal.ftoi(r_gpos, r_gpos)
cal.ftoi(r_gvel, r_gvel)
cal.sample(0, 0, r_lpos, reg.v0.xy) # Local position
cal.sample(1, 1, r_vel, reg.v0.xy) # Load velocity
cal.mov(reg.g[r_gpos.x], r_lpos)
cal.mov(reg.g[r_gvel.x], r_vel)
cal.mov(r_step, r_step('0000'))
cal.whileloop()
cal.breakc(cal.relop.ge, r_step.x, r_numsteps)
cal.mov(r_count, r_count('0000')) # loop counter
cal.whileloop()
cal.breakc(cal.relop.ge, r_count.x, r_bodies)
cal.add(r_foo, r_foo, r_foo('1111'))
# calculate force
r_tmp = code.acquire_register()
cal.ftoi(r_tmp, r_count)
cal.mov(r_rpos, reg.g[r_tmp.x])
# d_xyz
cal.sub(r_diff, r_lpos.xyz0, r_rpos.xyz0) # local pos - remote pos
# dist_tmp
cal.mul(r_dist_vec, r_diff.xxxx, r_diff.xxxx)
cal.mad(r_dist_vec, r_diff.yyyy, r_diff.yyyy, r_dist_vec)
cal.mad(r_dist_vec, r_diff.zzzz, r_diff.zzzz, r_dist_vec)
# distance
# TODO - skip rest of force computation if distance is 0
cal.sqrt_vec(r_dist, r_dist_vec)
# force G * ((m[i] * m[j]) / dist_tmp)
cal.mul(r_force_tmp, r_lpos.wwww, r_rpos.wwww)
cal.div(r_force_tmp, r_force_tmp, r_dist_vec, ZEROOP = cal.zeroop.zero)
cal.mul(r_force_tmp, r_force_tmp, r_G)
# f_xyz
# TODO - whats going on, is this right?
cal.div(r_force_vec, r_diff.xyz0, r_dist.xyz1, ZEROOP = cal.zeroop.zero)
cal.mul(r_force_vec, r_force_vec.xyz0, r_force_tmp.xyz0)
cal.sub(r_force, r_force.xyz0, r_force_vec.xyz0)
cal.add(r_count, r_count, r_count('1111'))
cal.endloop()
# Acceleration
cal.div(r_force, r_force.xyz0, r_lpos.wwww, ZEROOP = cal.zeroop.zero)
# Velocity
cal.mad(r_vel, r_force, r_dt, r_vel)
# Position
cal.mad(reg.o0, r_vel.xyz0, r_dt.xyz0, r_lpos.xyzw)
# store updated pos and vel
cal.mov(reg.g[r_gpos.x], r_lpos)
cal.mov(reg.g[r_gvel.x], r_vel)
cal.add(r_step, r_step, r_step('1111'))
cal.endloop()
cal.mov(reg.o0, r_lpos)
cal.mov(reg.o1, r_vel)
cal.mov(reg.o2, r_foo)
return code
def cal_nb_generate(n_bodies, dt):
code = env.InstructionStream()
cal.set_active_code(code)
fn_bodies = float(n_bodies)
r_count = code.acquire_register()
r_lpos = code.acquire_register()
r_rpos = code.acquire_register()
r_force = code.acquire_register()
r_diff = code.acquire_register()
r_dist_vec = code.acquire_register()
r_dist = code.acquire_register()
r_force_tmp = code.acquire_register()
r_force_vec = code.acquire_register()
r_vel = code.acquire_register()
#code.add("dcl_input_position_interp(linear_noperspective) v0.x___")
cal.dcl_input(reg.v0.x___, USAGE=cal.usage.pos, INTERP=cal.interp.linear_noperspective)
r_bodies = code.acquire_register((fn_bodies,) * 4)
r_G = code.acquire_register((G,) * 4)
r_dt = code.acquire_register((dt,) * 4)
cal.dcl_output(reg.o0, USAGE=cal.usage.generic)
cal.dcl_output(reg.o1, USAGE=cal.usage.generic)
cal.dcl_resource(0, cal.pixtex_type.oned, cal.fmt.float, UNNORM=True) # positions
cal.dcl_resource(1, cal.pixtex_type.oned, cal.fmt.float, UNNORM=True) # velocities
# Loop over all other points to calculate the force
cal.mov(r_count, r_count('0000')) # loop counter
cal.sample(0, 0, r_lpos, reg.v0.x) # Local position
cal.mov(r_force, r_force('0000')) # total force
# Compute force using input from every other point
cal.whileloop()
# Break if end of points reached
cal.breakc(cal.relop.ge, r_count, r_bodies)
cal.sample(0, 0, r_rpos, r_count.x) # Remote position
# d_xyz
cal.sub(r_diff, r_lpos.xyz0, r_rpos.xyz0) # local pos - remote pos
# dist_tmp
cal.mul(r_dist_vec, r_diff.xxxx, r_diff.xxxx)
cal.mad(r_dist_vec, r_diff.yyyy, r_diff.yyyy, r_dist_vec)
cal.mad(r_dist_vec, r_diff.zzzz, r_diff.zzzz, r_dist_vec)
# distance
# TODO - skip rest of force computation if distance is 0
cal.sqrt_vec(r_dist, r_dist_vec)
# force G * ((m[i] * m[j]) / dist_tmp)
cal.mul(r_force_tmp, r_lpos.wwww, r_rpos.wwww)
cal.div(cal.zeroop.zero, r_force_tmp, r_force_tmp, r_dist_vec)
cal.mul(r_force_tmp, r_force_tmp, r_G)
# f_xyz
cal.div(cal.zeroop.zero, r_force_vec, r_diff.xyz0, r_dist.xyz1)
cal.mul(r_force_vec, r_force_vec.xyz0, r_force_tmp.xyz0)
cal.sub(r_force, r_force.xyz0, r_force_vec.xyz0)
# Increment loop counter, end loop
cal.add(r_count, r_count, r_count('1111'))
cal.endloop()
# Acceleration
cal.div(cal.zeroop.zero, r_force, r_force.xyz0, r_lpos.wwww)
# Velocity
cal.sample(1, 1, r_vel, reg.v0.x) # Load velocity
cal.mad(r_vel, r_force, r_dt, r_vel)
cal.mov(reg.o1, r_vel)
# Position
cal.mad(reg.o0, r_vel.xyz0, r_dt.xyz0, r_lpos.xyzw)
return code
def cal_nb_generate_2d(prgm, n_bodies, dt):
code = prgm.get_stream()
cal.set_active_code(code)
fn_bodies = float(n_bodies)
#r_cx = prgm.acquire_register()
#r_cy = prgm.acquire_register()
r_count = prgm.acquire_register()
r_lpos = prgm.acquire_register()
r_rpos = prgm.acquire_register()
r_force = prgm.acquire_register()
r_diff = prgm.acquire_register()
r_dist_vec = prgm.acquire_register()
r_dist = prgm.acquire_register()
r_force_tmp = prgm.acquire_register()
r_force_vec = prgm.acquire_register()
r_vel = prgm.acquire_register()
#code.add("dcl_input_position_interp(linear_noperspective) v0.xy__")
cal.dcl_input(reg.v0.xy__, USAGE=cal.usage.pos, INTERP=cal.interp.linear_noperspective)
r_bodies = prgm.acquire_register((fn_bodies,) * 4)
r_G = prgm.acquire_register((G,) * 4)
r_dt = prgm.acquire_register((dt,) * 4)
cal.dcl_output(reg.o0, USAGE=cal.usage.generic)
cal.dcl_output(reg.o1, USAGE=cal.usage.generic)
cal.dcl_resource(0, cal.pixtex_type.twod, cal.fmt.float, UNNORM=True) # positions
cal.dcl_resource(1, cal.pixtex_type.twod, cal.fmt.float, UNNORM=True) # velocities
# Loop over all other points to calculate the force
cal.mov(r_count, r_count('0000')) # loop counter
#cal.mov(r_cx, r_cx('0000')) # loop counter
#cal.mov(r_cy, r_cy('0000')) # loop counter
cal.sample(0, 0, r_lpos, reg.v0.xy) # Local position
cal.mov(r_force, r_force('0000')) # total force
# Compute force using input from every other point
cal.whileloop()
cal.breakc(cal.relop.ge, r_count.x, r_bodies)
cal.mov(r_count, r_count.x0zw)
cal.whileloop()
cal.breakc(cal.relop.ge, r_count.y, r_bodies)
#for i in xrange(0, 4):
#cal.add(r_count, r_cx('x000'), r_cy('0x00'))
cal.sample(0, 0, r_rpos, r_count.xy) # Remote position
# d_xyz
cal.sub(r_diff, r_lpos.xyz0, r_rpos.xyz0) # local pos - remote pos
# dist_tmp
#cal.mul(r_dist_vec, r_diff.xxxx, r_diff.xxxx)
#cal.mad(r_dist_vec, r_diff.yyyy, r_diff.yyyy, r_dist_vec)
#cal.mad(r_dist_vec, r_diff.zzzz, r_diff.zzzz, r_dist_vec)
cal.dp3(r_dist_vec, r_diff, r_diff, IEEE = False)
# distance
# TODO - skip rest of force computation if distance is 0
cal.sqrt_vec(r_dist, r_dist_vec)
# force G * ((m[i] * m[j]) / dist_tmp)
cal.mul(r_force_tmp, r_lpos.wwww, r_rpos.wwww, IEEE = False)
cal.div(r_force_tmp, r_force_tmp, r_dist_vec, ZEROOP = cal.zeroop.zero)
cal.mul(r_force_tmp, r_force_tmp, r_G, IEEE = False)
# f_xyz
# TODO - whats going on, is this right?
cal.div(r_force_vec, r_diff.xyz0, r_dist.xyz1, ZEROOP = cal.zeroop.zero)
cal.mul(r_force_vec, r_force_vec.xyz0, r_force_tmp.xyz0, IEEE = False)
cal.sub(r_force, r_force.xyz0, r_force_vec.xyz0)
#cal.add(r_cy, r_cy, r_count('1111'))
#cal.add(r_count, r_count, r_count('0100'))
#cal.ifc(cal.relop.ge, r_count.y, r_bodies.y)
## TODO - can I merge these two?
#cal.mov(r_count('_y__'), r_count('x0zw'))
#cal.add(r_count, r_count, r_count('1000'))
#cal.endif()
# Increment loop counter, end loop
cal.add(r_count, r_count, r_count('0100'))
cal.endloop()
cal.add(r_count, r_count, r_count('1000'))
#cal.add(r_cx, r_cx, r_cx('1111'))
cal.endloop()
# Acceleration
cal.div(r_force, r_force.xyz0, r_lpos.wwww, ZEROOP = cal.zeroop.zero)
# Velocity
cal.sample(1, 1, r_vel, reg.v0.xy) # Load velocity
cal.mad(r_vel, r_force, r_dt, r_vel, IEEE = False)
cal.mov(reg.o1, r_vel)
# Position
cal.mad(reg.o0, r_vel.xyz0, r_dt.xyz0, r_lpos.xyzw, IEEE = False)
#cal.mov(reg.g[0], r_vel)
return code