def main():
# Create a 2D index space of size 4x4.
I = Ispace([4, 4])
# Create a field space with a single field x of type float64.
F = Fspace({'x': pygion.float64})
# Create a region from I and F.
R = Region(I, F)
# This could have also been done with the following shortand, and
# Legion will automatically create an index space and field space.
R2 = Region([4, 4], {'x': pygion.float64})
# Fill the field x of region R with an initial value.
pygion.fill(R, 'x', 101)
# Launch two tasks. The second task will depend on the first,
# since they both write R.
init(R)
child_result = inc(R, 1)
# Note: when a task runs, it returns a future. To get the value of
# the future, you have to block. However, in idiomatic Legion code
# it would be more common to pass the future to another task
# (without blocking).
print("child task returned", child_result)
print("child task future contains", child_result.get())
print("main_task done")
def main_task():
# Create a 2D index space of size 4x4.
I = Ispace([4, 4])
# Create a field space with a single field x of type float64. For
# interop with C++, we have to choose an explicit field ID here
# (in this case, 1). We could leave this out if the code were pure
# Python.
F = Fspace({'x': (pygion.float64, 1)})
# Create a region from I and F and launch two tasks.
R = Region(I, F)
init_result = init(R)
child_result = inc(R, 1)
# Check task results:
print("init task returned", init_result.get())
assert init_result.get() == 123
print("child task returned", child_result.get())
assert child_result.get() == 42
values = 'abc'
for i in IndexLaunch([3]):
print('queue %s' % i)
hello(i, values[i])
print("main_task done")
def main():
print('hello from Python')
x = hello(1234, 3.14)
print('Python got result from Regent task: %s' % x.get())
print('creating a field space with two fields')
# Note: Need to use OrderedDict so that the field ordering matches Regent.
fs = Fspace(OrderedDict([('x', pygion.float64), ('y', pygion.float64)]))
print('creating a region with 12 elements')
r = Region([12], fs)
pygion.fill(r, 'x', 1)
pygion.fill(r, 'y', 2)
a = 1.5
print('calling SAXPY task in Regent')
saxpy(r, a)
check(r)
def main():
print_once('Running stencil.py')
conf = parse_args(pygion.input_args(True))
nbloated = np.array([conf.nx, conf.ny])
nt = np.array([conf.ntx, conf.nty])
init = conf.init
n = nbloated - 2 * RADIUS
assert np.all(n >= nt), "grid too small"
grid = Ispace(n + nt * 2 * RADIUS)
tiles = Ispace(nt)
point = Fspace(OrderedDict([
('input', DTYPE),
('output', DTYPE),
]))
points = Region(grid, point)
private = make_private_partition(points, tiles, n, nt)
interior = make_interior_partition(points, tiles, n, nt)
exterior = make_exterior_partition(points, tiles, n, nt)
xm = Region([nt[0] * RADIUS, n[1]], point)
xp = Region([nt[0] * RADIUS, n[1]], point)
ym = Region([n[0], nt[1] * RADIUS], point)
yp = Region([n[0], nt[1] * RADIUS], point)
pxm_in = make_ghost_x_partition(xm, tiles, n, nt, -1)
pxp_in = make_ghost_x_partition(xp, tiles, n, nt, 1)
pym_in = make_ghost_y_partition(ym, tiles, n, nt, -1)
pyp_in = make_ghost_y_partition(yp, tiles, n, nt, 1)
pxm_out = make_ghost_x_partition(xm, tiles, n, nt, 0)
pxp_out = make_ghost_x_partition(xp, tiles, n, nt, 0)
pym_out = make_ghost_y_partition(ym, tiles, n, nt, 0)
pyp_out = make_ghost_y_partition(yp, tiles, n, nt, 0)
init = conf.init
for r in [points, xm, xp, ym, yp]:
for f in ['input', 'output']:
pygion.fill(r, f, init)
tsteps = conf.tsteps + 2 * conf.tprune
tprune = conf.tprune
trace = Trace()
for t in range(tsteps):
if t == tprune:
pygion.execution_fence(block=True)
start_time = pygion.c.legion_get_current_time_in_nanos()
with trace:
if _constant_time_launches:
index_launch(tiles, stencil, private[ID], interior[ID],
pxm_in[ID], pxp_in[ID], pym_in[ID], pyp_in[ID],
False)
index_launch(tiles, increment, private[ID], exterior[ID],
pxm_out[ID], pxp_out[ID], pym_out[ID],
pyp_out[ID], False)
else:
for i in IndexLaunch(tiles):
stencil(private[i], interior[i], pxm_in[i], pxp_in[i],
pym_in[i], pyp_in[i], False)
for i in IndexLaunch(tiles):
increment(private[i], exterior[i], pxm_out[i], pxp_out[i],
pym_out[i], pyp_out[i], False)
if t == tsteps - tprune - 1:
pygion.execution_fence(block=True)
stop_time = pygion.c.legion_get_current_time_in_nanos()
if _constant_time_launches:
index_launch(tiles, check, private[ID], interior[ID], tsteps, init)
else:
for i in IndexLaunch(tiles):
check(private[i], interior[i], tsteps, init)
print_once('ELAPSED TIME = %7.3f s' % ((stop_time - start_time) / 1e9))
def main():
print_once('Running pennant.py')
conf = read_config().get()
zone = Fspace(
OrderedDict([
('zxp_x', pygion.float64),
('zxp_y', pygion.float64),
('zx_x', pygion.float64),
('zx_y', pygion.float64),
('zareap', pygion.float64),
('zarea', pygion.float64),
('zvol0', pygion.float64),
('zvolp', pygion.float64),
('zvol', pygion.float64),
('zdl', pygion.float64),
('zm', pygion.float64),
('zrp', pygion.float64),
('zr', pygion.float64),
('ze', pygion.float64),
('zetot', pygion.float64),
('zw', pygion.float64),
('zwrate', pygion.float64),
('zp', pygion.float64),
('zss', pygion.float64),
('zdu', pygion.float64),
('zuc_x', pygion.float64),
('zuc_y', pygion.float64),
('z0tmp', pygion.float64),
('znump', pygion.uint8),
]))
point = Fspace(
OrderedDict([
('px0_x', pygion.float64),
('px0_y', pygion.float64),
('pxp_x', pygion.float64),
('pxp_y', pygion.float64),
('px_x', pygion.float64),
('px_y', pygion.float64),
('pu0_x', pygion.float64),
('pu0_y', pygion.float64),
('pu_x', pygion.float64),
('pu_y', pygion.float64),
('pap_x', pygion.float64),
('pap_y', pygion.float64),
('pf_x', pygion.float64),
('pf_y', pygion.float64),
('pmaswt', pygion.float64),
('has_bcx', pygion.bool_),
('has_bcy', pygion.bool_),
]))
side = Fspace(
OrderedDict([
('mapsz', pygion.int1d),
('mapsp1', pygion.int1d),
('mapsp1_r', pygion.uint8),
('mapsp2', pygion.int1d),
('mapsp2_r', pygion.uint8),
('mapss3', pygion.int1d),
('mapss4', pygion.int1d),
('sareap', pygion.float64),
('sarea', pygion.float64),
('svolp', pygion.float64),
('svol', pygion.float64),
('ssurfp_x', pygion.float64),
('ssurfp_y', pygion.float64),
('smf', pygion.float64),
('sfp_x', pygion.float64),
('sfp_y', pygion.float64),
('sft_x', pygion.float64),
('sft_y', pygion.float64),
('sfq_x', pygion.float64),
('sfq_y', pygion.float64),
('exp_x', pygion.float64),
('exp_y', pygion.float64),
('ex_x', pygion.float64),
('ex_y', pygion.float64),
('elen', pygion.float64),
('carea', pygion.float64),
('cevol', pygion.float64),
('cdu', pygion.float64),
('cdiv', pygion.float64),
('ccos', pygion.float64),
('cqe1_x', pygion.float64),
('cqe1_y', pygion.float64),
('cqe2_x', pygion.float64),
('cqe2_y', pygion.float64),
]))
izones = Ispace([conf.nz], name="zones")
ipoints = Ispace([conf.np], name="points")
isides = Ispace([conf.ns], name="sides")
zones = Region(izones, zone, name="zones")
points = Region(ipoints, point, name="points")
sides = Region(isides, side, name="sides")
assert conf.seq_init or conf.par_init, 'enable one of sequential or parallel initialization'
if conf.seq_init:
colorings = read_input_sequential(zones, points, sides, conf).get()
assert conf.par_init
partitions = read_partitions(zones, points, sides, conf).get()
pieces = Ispace([conf.npieces], name="pieces")
zones_part = create_partition(True, zones, partitions.rz_all_p, pieces)
points_part = create_partition(True, points, partitions.rp_all_p, [2])
private = points_part[0]
ghost = points_part[1]
private_part = create_partition(True, private, partitions.rp_all_private_p,
pieces)
ghost_part = create_partition(False, ghost, partitions.rp_all_ghost_p,
pieces)
shared_part = create_partition(True, ghost, partitions.rp_all_shared_p,
pieces)
sides_part = create_partition(True, sides, partitions.rs_all_p, pieces)
if conf.par_init:
if _constant_time_launches:
c = Future(conf, value_type=config)
index_launch(pieces, initialize_topology, c, ID, zones_part[ID],
private_part[ID], shared_part[ID], ghost_part[ID],
sides_part[ID])
else:
for i in IndexLaunch(pieces):
initialize_topology(conf, i, zones_part[i], private_part[i],
shared_part[i], ghost_part[i],
sides_part[i])
if _constant_time_launches:
index_launch(pieces, init_pointers, zones_part[ID], private_part[ID],
ghost_part[ID], sides_part[ID])
index_launch(pieces, init_mesh_zones, zones_part[ID])
index_launch(pieces, calc_centers_full, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID], True)
index_launch(pieces, calc_volumes_full, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID], True)
index_launch(pieces, init_side_fracs, zones_part[ID], private_part[ID],
ghost_part[ID], sides_part[ID])
index_launch(pieces, init_hydro, zones_part[ID], conf.rinit,
conf.einit, conf.rinitsub, conf.einitsub,
conf.subregion[0], conf.subregion[1], conf.subregion[2],
conf.subregion[3])
index_launch(pieces, init_radial_velocity, private_part[ID],
conf.uinitradial)
index_launch(pieces, init_radial_velocity, shared_part[ID],
conf.uinitradial)
else:
for i in IndexLaunch(pieces):
init_pointers(zones_part[i], private_part[i], ghost_part[i],
sides_part[i])
for i in IndexLaunch(pieces):
init_mesh_zones(zones_part[i])
for i in IndexLaunch(pieces):
calc_centers_full(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], True)
for i in IndexLaunch(pieces):
calc_volumes_full(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], True)
for i in IndexLaunch(pieces):
init_side_fracs(zones_part[i], private_part[i], ghost_part[i],
sides_part[i])
for i in IndexLaunch(pieces):
init_hydro(zones_part[i], conf.rinit, conf.einit, conf.rinitsub,
conf.einitsub, conf.subregion[0], conf.subregion[1],
conf.subregion[2], conf.subregion[3])
for i in IndexLaunch(pieces):
init_radial_velocity(private_part[i], conf.uinitradial)
for i in IndexLaunch(pieces):
init_radial_velocity(shared_part[i], conf.uinitradial)
cycle = 0
cstop = conf.cstop + 2 * conf.prune
time = 0.0
dt = Future(conf.dtmax, pygion.float64)
dthydro = conf.dtmax
while cycle < cstop and time < conf.tstop:
if cycle == conf.prune:
pygion.execution_fence(block=True)
start_time = pygion.c.legion_get_current_time_in_nanos()
if _constant_time_launches:
index_launch(pieces, init_step_points, private_part[ID], True)
index_launch(pieces, init_step_points, shared_part[ID], True)
index_launch(pieces, init_step_zones, zones_part[ID], True)
dt = calc_global_dt(dt, conf.dtfac, conf.dtinit, conf.dtmax,
dthydro, time, conf.tstop, cycle)
index_launch(pieces, adv_pos_half, private_part[ID], dt, True)
index_launch(pieces, adv_pos_half, shared_part[ID], dt, True)
index_launch(pieces, calc_centers, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, calc_volumes, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, calc_char_len, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, calc_rho_half, zones_part[ID], True)
index_launch(pieces, sum_point_mass, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, calc_state_at_half, zones_part[ID],
conf.gamma, conf.ssmin, dt, True)
index_launch(pieces, calc_force_pgas_tts, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
conf.alfa, conf.ssmin, True)
index_launch(pieces, qcs_zone_center_velocity, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, qcs_corner_divergence, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, qcs_qcn_force, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
conf.gamma, conf.q1, conf.q2, True)
index_launch(pieces, qcs_force, zones_part[ID], private_part[ID],
ghost_part[ID], sides_part[ID], True)
index_launch(pieces, qcs_vel_diff, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
conf.q1, conf.q2, True)
index_launch(pieces, sum_point_force, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, apply_boundary_conditions, private_part[ID],
True)
index_launch(pieces, apply_boundary_conditions, shared_part[ID],
True)
index_launch(pieces, adv_pos_full, private_part[ID], dt, True)
index_launch(pieces, adv_pos_full, shared_part[ID], dt, True)
index_launch(pieces, calc_centers_full, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, calc_volumes_full, zones_part[ID],
private_part[ID], ghost_part[ID], sides_part[ID],
True)
index_launch(pieces, calc_work, zones_part[ID], private_part[ID],
ghost_part[ID], sides_part[ID], dt, True)
index_launch(pieces, calc_work_rate_energy_rho_full,
zones_part[ID], dt, True)
dthydro = index_launch(pieces,
calc_dt_hydro,
zones_part[ID],
dt,
conf.dtmax,
conf.cfl,
conf.cflv,
True,
reduce='min')
else:
for i in IndexLaunch(pieces):
init_step_points(private_part[i], True)
for i in IndexLaunch(pieces):
init_step_points(shared_part[i], True)
for i in IndexLaunch(pieces):
init_step_zones(zones_part[i], True)
dt = calc_global_dt(dt, conf.dtfac, conf.dtinit, conf.dtmax,
dthydro, time, conf.tstop, cycle)
for i in IndexLaunch(pieces):
adv_pos_half(private_part[i], dt, True)
for i in IndexLaunch(pieces):
adv_pos_half(shared_part[i], dt, True)
for i in IndexLaunch(pieces):
calc_centers(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], True)
for i in IndexLaunch(pieces):
calc_volumes(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], True)
for i in IndexLaunch(pieces):
calc_char_len(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], True)
for i in IndexLaunch(pieces):
calc_rho_half(zones_part[i], True)
for i in IndexLaunch(pieces):
sum_point_mass(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], True)
for i in IndexLaunch(pieces):
calc_state_at_half(zones_part[i], conf.gamma, conf.ssmin, dt,
True)
for i in IndexLaunch(pieces):
calc_force_pgas_tts(zones_part[i], private_part[i],
ghost_part[i], sides_part[i], conf.alfa,
conf.ssmin, True)
for i in IndexLaunch(pieces):
qcs_zone_center_velocity(zones_part[i], private_part[i],
ghost_part[i], sides_part[i], True)
for i in IndexLaunch(pieces):
qcs_corner_divergence(zones_part[i], private_part[i],
ghost_part[i], sides_part[i], True)
for i in IndexLaunch(pieces):
qcs_qcn_force(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], conf.gamma, conf.q1, conf.q2,
True)
for i in IndexLaunch(pieces):
qcs_force(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], True)
for i in IndexLaunch(pieces):
qcs_vel_diff(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], conf.q1, conf.q2, True)
for i in IndexLaunch(pieces):
sum_point_force(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], True)
for i in IndexLaunch(pieces):
apply_boundary_conditions(private_part[i], True)
for i in IndexLaunch(pieces):
apply_boundary_conditions(shared_part[i], True)
for i in IndexLaunch(pieces):
adv_pos_full(private_part[i], dt, True)
for i in IndexLaunch(pieces):
adv_pos_full(shared_part[i], dt, True)
for i in IndexLaunch(pieces):
calc_centers_full(zones_part[i], private_part[i],
ghost_part[i], sides_part[i], True)
for i in IndexLaunch(pieces):
calc_volumes_full(zones_part[i], private_part[i],
ghost_part[i], sides_part[i], True)
for i in IndexLaunch(pieces):
calc_work(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], dt, True)
for i in IndexLaunch(pieces):
calc_work_rate_energy_rho_full(zones_part[i], dt, True)
futures = []
for i in IndexLaunch(pieces):
futures.append(
calc_dt_hydro(zones_part[i], dt, conf.dtmax, conf.cfl,
conf.cflv, True))
dthydro = conf.dtmax
dthydro = min(dthydro, *list(map(lambda x: x.get(), futures)))
cycle += 1
time += dt.get()
if cycle == cstop - conf.prune:
pygion.execution_fence(block=True)
stop_time = pygion.c.legion_get_current_time_in_nanos()
if conf.seq_init:
validate_output_sequential(zones, points, sides, conf)
else:
print_once("Warning: Skipping sequential validation")
print_once("ELAPSED TIME = %7.3f s" % ((stop_time - start_time) / 1e9))
def main():
print_once('Running circuit_sparse.py')
conf = parse_args(pygion.input_args(True))
assert conf.num_pieces % conf.pieces_per_superpiece == 0, "pieces should be evenly distributed to superpieces"
conf.shared_nodes_per_piece = int(
math.ceil(conf.nodes_per_piece * conf.pct_shared_nodes / 100.0))
print_once(
"circuit settings: loops=%d prune=%d pieces=%d (pieces/superpiece=%d) nodes/piece=%d (nodes/piece=%d) wires/piece=%d pct_in_piece=%d seed=%d"
% (conf.num_loops, conf.prune, conf.num_pieces,
conf.pieces_per_superpiece, conf.nodes_per_piece,
conf.shared_nodes_per_piece, conf.wires_per_piece,
conf.pct_wire_in_piece, conf.random_seed))
num_pieces = conf.num_pieces
num_superpieces = conf.num_pieces // conf.pieces_per_superpiece
num_circuit_nodes = num_pieces * conf.nodes_per_piece
num_circuit_wires = num_pieces * conf.wires_per_piece
node = Fspace(
OrderedDict([
('node_cap', pygion.float32),
('leakage', pygion.float32),
('charge', pygion.float32),
('node_voltage', pygion.float32),
]))
wire = Fspace(
OrderedDict([
('in_ptr', pygion.int64),
('in_ptr_r', pygion.uint8),
('out_ptr', pygion.int64),
('out_ptr_r', pygion.uint8),
('inductance', pygion.float32),
('resistance', pygion.float32),
('wire_cap', pygion.float32),
] + [('current_%d' % i, pygion.float32)
for i in range(WIRE_SEGMENTS)] +
[('voltage_%d' % i, pygion.float32)
for i in range(WIRE_SEGMENTS - 1)]))
all_nodes = Region([num_circuit_nodes], node)
all_wires = Region([num_circuit_wires], wire)
node_size = np.dtype(list(
map(lambda x: (x[0], x[1].numpy_type), node.field_types.items())),
align=True).itemsize
wire_size = np.dtype(list(
map(lambda x: (x[0], x[1].numpy_type), wire.field_types.items())),
align=True).itemsize
print_once("Circuit memory usage:")
print_once(" Nodes : %10d * %4d bytes = %12d bytes" %
(num_circuit_nodes, node_size, num_circuit_nodes * node_size))
print_once(" Wires : %10d * %4d bytes = %12d bytes" %
(num_circuit_wires, wire_size, num_circuit_wires * wire_size))
total = ((num_circuit_nodes * node_size) + (num_circuit_wires * wire_size))
print_once(" Total %12d bytes" % total)
snpp = conf.shared_nodes_per_piece
pnpp = conf.nodes_per_piece - conf.shared_nodes_per_piece
pps = conf.pieces_per_superpiece
num_shared_nodes = num_pieces * snpp
privacy_coloring = Region([2], {'rect': pygion.rect1d})
np.copyto(privacy_coloring.rect,
np.array([(num_shared_nodes, num_circuit_nodes - 1),
(0, num_shared_nodes - 1)],
dtype=privacy_coloring.rect.dtype),
casting='no')
privacy_part = Partition.restrict(privacy_coloring, [2], np.eye(1), [1],
disjoint_complete)
all_nodes_part = Partition.image(all_nodes, privacy_part, 'rect', [2],
disjoint_complete)
all_private = all_nodes_part[0]
all_shared = all_nodes_part[1]
launch_domain = Ispace([num_superpieces])
private_part = Partition.restrict(all_private, launch_domain,
np.eye(1) * pnpp * pps,
Domain([pnpp * pps], [num_shared_nodes]),
disjoint_complete)
shared_part = Partition.restrict(all_shared, launch_domain,
np.eye(1) * snpp * pps, [snpp * pps],
disjoint_complete)
wires_part = Partition.equal(all_wires, launch_domain)
ghost_ranges = Region([num_superpieces],
OrderedDict([('rect', pygion.rect1d)]))
ghost_ranges_part = Partition.equal(ghost_ranges, launch_domain)
if _constant_time_launches:
c = Future(conf[0], value_type=Config)
index_launch(launch_domain, init_piece, ID, c, ghost_ranges_part[ID],
private_part[ID], shared_part[ID], all_shared,
wires_part[ID])
else:
for i in IndexLaunch(launch_domain):
init_piece(i, conf[0], ghost_ranges_part[i], private_part[i],
shared_part[i], all_shared, wires_part[i])
ghost_part = Partition.image(all_shared, ghost_ranges_part, 'rect',
launch_domain)
if _constant_time_launches:
index_launch(launch_domain, init_pointers, private_part[ID],
shared_part[ID], ghost_part[ID], wires_part[ID])
else:
for i in IndexLaunch(launch_domain):
init_pointers(private_part[i], shared_part[i], ghost_part[i],
wires_part[i])
steps = conf.steps
prune = conf.prune
num_loops = conf.num_loops + 2 * prune
trace = Trace()
for j in range(num_loops):
if j == prune:
pygion.execution_fence(block=True)
start_time = pygion.c.legion_get_current_time_in_nanos()
with trace:
if _constant_time_launches:
index_launch(launch_domain, calculate_new_currents, False,
steps, private_part[ID], shared_part[ID],
ghost_part[ID], wires_part[ID])
index_launch(launch_domain, distribute_charge,
private_part[ID], shared_part[ID], ghost_part[ID],
wires_part[ID])
index_launch(launch_domain, update_voltages, False,
private_part[ID], shared_part[ID])
else:
for i in IndexLaunch(launch_domain):
calculate_new_currents(False, steps, private_part[i],
shared_part[i], ghost_part[i],
wires_part[i])
for i in IndexLaunch(launch_domain):
distribute_charge(private_part[i], shared_part[i],
ghost_part[i], wires_part[i])
for i in IndexLaunch(launch_domain):
update_voltages(False, private_part[i], shared_part[i])
if j == num_loops - prune - 1:
pygion.execution_fence(block=True)
stop_time = pygion.c.legion_get_current_time_in_nanos()
sim_time = (stop_time - start_time) / 1e9
print_once('ELAPSED TIME = %7.3f s' % sim_time)
# Compute the floating point operations per second
num_circuit_nodes = conf.num_pieces * conf.nodes_per_piece
num_circuit_wires = conf.num_pieces * conf.wires_per_piece
# calculate currents
operations = num_circuit_wires * (WIRE_SEGMENTS * 6 +
(WIRE_SEGMENTS - 1) * 4) * conf.steps
# distribute charge
operations += (num_circuit_wires * 4)
# update voltages
operations += (num_circuit_nodes * 4)
# multiply by the number of loops
operations *= conf.num_loops
# Compute the number of gflops
gflops = (1e-9 * operations) / sim_time
print_once("GFLOPS = %7.3f GFLOPS" % gflops)
def main():
print_once('Running pennant_fast.py')
conf = read_config().get()
zone = Fspace(
OrderedDict([
('zxp_x', pygion.float64),
('zxp_y', pygion.float64),
('zx_x', pygion.float64),
('zx_y', pygion.float64),
('zareap', pygion.float64),
('zarea', pygion.float64),
('zvol0', pygion.float64),
('zvolp', pygion.float64),
('zvol', pygion.float64),
('zdl', pygion.float64),
('zm', pygion.float64),
('zrp', pygion.float64),
('zr', pygion.float64),
('ze', pygion.float64),
('zetot', pygion.float64),
('zw', pygion.float64),
('zwrate', pygion.float64),
('zp', pygion.float64),
('zss', pygion.float64),
('zdu', pygion.float64),
('zuc_x', pygion.float64),
('zuc_y', pygion.float64),
('z0tmp', pygion.float64),
('znump', pygion.uint8),
]))
point = Fspace(
OrderedDict([
('px0_x', pygion.float64),
('px0_y', pygion.float64),
('pxp_x', pygion.float64),
('pxp_y', pygion.float64),
('px_x', pygion.float64),
('px_y', pygion.float64),
('pu0_x', pygion.float64),
('pu0_y', pygion.float64),
('pu_x', pygion.float64),
('pu_y', pygion.float64),
('pap_x', pygion.float64),
('pap_y', pygion.float64),
('pf_x', pygion.float64),
('pf_y', pygion.float64),
('pmaswt', pygion.float64),
('has_bcx', pygion.bool_),
('has_bcy', pygion.bool_),
]))
side = Fspace(
OrderedDict([
('mapsz', pygion.int1d),
('mapsp1', pygion.int1d),
('mapsp1_r', pygion.uint8),
('mapsp2', pygion.int1d),
('mapsp2_r', pygion.uint8),
('mapss3', pygion.int1d),
('mapss4', pygion.int1d),
('sareap', pygion.float64),
('sarea', pygion.float64),
('svolp', pygion.float64),
('svol', pygion.float64),
('ssurfp_x', pygion.float64),
('ssurfp_y', pygion.float64),
('smf', pygion.float64),
('sfp_x', pygion.float64),
('sfp_y', pygion.float64),
('sft_x', pygion.float64),
('sft_y', pygion.float64),
('sfq_x', pygion.float64),
('sfq_y', pygion.float64),
('exp_x', pygion.float64),
('exp_y', pygion.float64),
('ex_x', pygion.float64),
('ex_y', pygion.float64),
('elen', pygion.float64),
('carea', pygion.float64),
('cevol', pygion.float64),
('cdu', pygion.float64),
('cdiv', pygion.float64),
('ccos', pygion.float64),
('cqe1_x', pygion.float64),
('cqe1_y', pygion.float64),
('cqe2_x', pygion.float64),
('cqe2_y', pygion.float64),
]))
span = Fspace(
OrderedDict([
('start', pygion.int64),
('stop', pygion.int64),
('internal', pygion.bool_),
]))
zones = Region([conf.nz], zone)
points = Region([conf.np], point)
sides = Region([conf.ns], side)
assert conf.par_init, 'parallel initialization required'
old_seq_init = conf.seq_init
if conf.seq_init:
print('Warning: Sequential initialization not supported, skipping')
# Since we aren't actually doing sequential intialization, we
# have to turn this off or the verification in parallel
# initialization will fail.
conf.seq_init = False
assert conf.par_init
partitions = read_partitions(zones, points, sides, conf).get()
conf.nspans_zones = partitions.nspans_zones
conf.nspans_points = partitions.nspans_points
pieces = Ispace([conf.npieces])
zones_part = create_partition(True, zones, partitions.rz_all_p, pieces)
points_part = create_partition(True, points, partitions.rp_all_p, [2])
private = points_part[0]
ghost = points_part[1]
private_part = create_partition(True, private, partitions.rp_all_private_p,
pieces)
ghost_part = create_partition(False, ghost, partitions.rp_all_ghost_p,
pieces)
shared_part = create_partition(True, ghost, partitions.rp_all_shared_p,
pieces)
sides_part = create_partition(True, sides, partitions.rs_all_p, pieces)
zone_spans = Region([conf.npieces * conf.nspans_zones], span)
zone_spans_part = Partition.equal(zone_spans, pieces)
private_spans = Region([conf.npieces * conf.nspans_points], span)
private_spans_part = Partition.equal(private_spans, pieces)
shared_spans = Region([conf.npieces * conf.nspans_points], span)
shared_spans_part = Partition.equal(shared_spans, pieces)
side_spans = Region([conf.npieces * conf.nspans_zones], span)
side_spans_part = Partition.equal(side_spans, pieces)
for region in [zone_spans, private_spans, shared_spans, side_spans]:
for field in ['start', 'stop']:
pygion.fill(region, field, 0)
if old_seq_init:
# FIXME: These fields are actually never used, fill them here
# just to avoid validation errors later.
pygion.fill(points, 'pap_x', 0)
pygion.fill(points, 'pap_y', 0)
pygion.fill(sides, 'svolp', 0)
pygion.fill(sides, 'svol', 0)
pygion.fill(sides, 'ssurfp_x', 0)
pygion.fill(sides, 'ssurfp_y', 0)
if conf.par_init:
for i in IndexLaunch(pieces):
initialize_topology(conf, int(i), zones_part[i], private_part[i],
shared_part[i], ghost_part[i], sides_part[i])
for i in IndexLaunch(pieces):
initialize_spans(conf, int(i), zone_spans_part[i],
private_spans_part[i], shared_spans_part[i],
side_spans_part[i])
for i in IndexLaunch(pieces):
init_pointers(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], side_spans_part[i])
for i in IndexLaunch(pieces):
init_mesh_zones(zones_part[i], zone_spans_part[i])
for i in IndexLaunch(pieces):
calc_centers_full(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], side_spans_part[i], True)
for i in IndexLaunch(pieces):
calc_volumes_full(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], side_spans_part[i], True)
for i in IndexLaunch(pieces):
init_side_fracs(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], side_spans_part[i])
for i in IndexLaunch(pieces):
init_hydro(zones_part[i], zone_spans_part[i], conf.rinit, conf.einit,
conf.rinitsub, conf.einitsub, conf.subregion[0],
conf.subregion[1], conf.subregion[2], conf.subregion[3])
for i in IndexLaunch(pieces):
init_radial_velocity(private_part[i], private_spans_part[i],
conf.uinitradial)
for i in IndexLaunch(pieces):
init_radial_velocity(shared_part[i], shared_spans_part[i],
conf.uinitradial)
cycle = 0
cstop = conf.cstop + 2 * conf.prune
time = 0.0
dt = Future(conf.dtmax, pygion.float64)
dthydro = conf.dtmax
while cycle < cstop and time < conf.tstop:
if cycle == conf.prune:
pygion.execution_fence(block=True)
start_time = pygion.c.legion_get_current_time_in_nanos()
dt = calc_global_dt(dt, conf.dtfac, conf.dtinit, conf.dtmax, dthydro,
time, conf.tstop, cycle)
for i in IndexLaunch(pieces):
adv_pos_half(private_part[i], private_spans_part[i], dt, True,
False)
for i in IndexLaunch(pieces):
adv_pos_half(shared_part[i], shared_spans_part[i], dt, True, False)
for i in IndexLaunch(pieces):
calc_everything(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], zone_spans_part[i],
side_spans_part[i], conf.alfa, conf.gamma,
conf.ssmin, dt, conf.q1, conf.q2, True)
for i in IndexLaunch(pieces):
adv_pos_full(private_part[i], private_spans_part[i], dt, True)
for i in IndexLaunch(pieces):
adv_pos_full(shared_part[i], shared_spans_part[i], dt, True)
for i in IndexLaunch(pieces):
calc_everything_full(zones_part[i], private_part[i], ghost_part[i],
sides_part[i], zone_spans_part[i],
side_spans_part[i], dt, True)
futures = []
for i in IndexLaunch(pieces):
futures.append(
calc_dt_hydro(zones_part[i], zone_spans_part[i], dt,
conf.dtmax, conf.cfl, conf.cflv, True, False))
dthydro = conf.dtmax
dthydro = min(dthydro, *list(map(lambda x: x.get(), futures)))
cycle += 1
time += dt.get()
if cycle == conf.cstop - conf.prune:
pygion.execution_fence(block=True)
stop_time = pygion.c.legion_get_current_time_in_nanos()
if old_seq_init:
validate_output_sequential(zones, points, sides, conf)
else:
print_once("Warning: Skipping sequential validation")
print_once("ELAPSED TIME = %7.3f s" % ((stop_time - start_time) / 1e9))