def check_binary_op_result(shape1, shape2, op, dtype=None):
if shape1 is None:
mx_input1 = abs(_np.random.uniform()) + 1
np_input1 = mx_input1
else:
mx_input1 = rand_ndarray(shape1, dtype=dtype).abs() + 1
np_input1 = mx_input1.asnumpy()
if shape2 is None:
mx_input2 = abs(_np.random.uniform()) + 1
np_input2 = mx_input2
else:
mx_input2 = rand_ndarray(shape2, dtype=dtype).abs() + 1
np_input2 = mx_input2.asnumpy()
scalar = None
reverse = False
if isinstance(mx_input1, mx.nd.NDArray) and not isinstance(
mx_input2, mx.nd.NDArray):
scalar = mx_input2
reverse = False
elif isinstance(mx_input2, mx.nd.NDArray) and not isinstance(
mx_input1, mx.nd.NDArray):
scalar = mx_input1
reverse = True
np_out = get_np_ret(np_input1, np_input2, op)
for hybridize in [True, False]:
if scalar is None:
get_mx_ret_np = TestBinaryElementWiseOp(op)
get_mx_ret_classic = TestBinaryElementWiseOp(op)
if hybridize:
get_mx_ret_np.hybridize()
get_mx_ret_classic.hybridize()
mx_out = get_mx_ret_np(mx_input1.as_np_ndarray(),
mx_input2.as_np_ndarray())
assert type(mx_out) == np.ndarray
assert np_out.shape == mx_out.shape
assert_almost_equal(mx_out.asnumpy(),
np_out,
atol=1e-6,
rtol=1e-5)
else:
get_mx_ret = TestBinaryElementWiseOp(op,
scalar=scalar,
reverse=reverse)
if hybridize:
get_mx_ret.hybridize()
if reverse:
mx_out = get_mx_ret(mx_input2.as_np_ndarray())
assert type(mx_out) == np.ndarray
else:
mx_out = get_mx_ret(mx_input1.as_np_ndarray())
assert type(mx_out) == np.ndarray
assert np_out.shape == mx_out.shape
assert_almost_equal(mx_out.asnumpy(),
np_out,
atol=1e-6,
rtol=1e-5)
def check_elemwise_add_training(stype):
data_shape = rand_shape_nd(4)
for density in [1.0, 0.5, 0.0]:
a_sym = mx.sym.Variable('a')
b_sym = mx.sym.Variable('b')
sym = mx.sym.elemwise_add(a_sym, b_sym)
a = rand_ndarray(shape=data_shape, stype=stype, density=density)
b = rand_ndarray(shape=data_shape, stype=stype, density=density)
in_location = [a, b]
check_numeric_gradient(sym, in_location, numeric_eps=1e-3, rtol=1e-3, atol=5e-3)
def test_np_dot():
shapes = [
((3, 0), (0, 4)),
((3, ), (3, )), # Case 1
((3, 4), (4, 5)), # Case 2
((), ()), # Case 3
((3, 4, 5), ()), # Case 3.5.1
((), (3, 4, 5)), # Case 3.5.2
((3, 4, 5), (5, )), # Case 4
((3, 4, 5), (5, 2)), # Case 5
((5, ), (5, 2)),
((3, 5, 4), (5, 4, 3)),
((3, 4), (5, 4, 3)),
((4, ), (5, 4, 3))
]
eps = 1e-3
for shape_a, shape_b in shapes:
np_a = _np.random.uniform(-1.0, 1.0, shape_a)
np_a[abs(np_a) < eps] = 2 * eps
np_b = _np.random.uniform(-1.0, 1.0, shape_b)
np_b[abs(np_b) < eps] = 2 * eps
a = mx.nd.array(np_a)
b = mx.nd.array(np_b)
np_res = _np.dot(np_a, np_b)
mx_res = np.dot(a.as_np_ndarray(), b.as_np_ndarray())
assert mx_res.shape == np_res.shape
assert_almost_equal(np_res, mx_res.asnumpy(), rtol=1e-5, atol=1e-5)
mx_a = mx.sym.Variable("a")
mx_b = mx.sym.Variable("b")
mx_sym = mx.sym.np.dot(mx_a.as_np_ndarray(),
mx_b.as_np_ndarray()).as_nd_ndarray()
if (len(shape_a) > 0 and len(shape_b) > 0 and _np.prod(shape_a) > 0
and _np.prod(shape_b) > 0):
check_numeric_gradient(mx_sym, {
"a": a,
"b": b
},
numeric_eps=eps,
rtol=1e-2,
atol=1e-3)
bad_shapes = [((4, 5), (2, 3)), ((3, 4, 5), (6, ))]
for shape_a, shape_b in bad_shapes:
a = mx.nd.array(
random.random()) if len(shape_a) == 0 else rand_ndarray(shape_a)
b = mx.nd.array(
random.random()) if len(shape_b) == 0 else rand_ndarray(shape_b)
try:
mx_res = np.dot(a.as_np_ndarray(), b.as_np_ndarray())
except mx.base.MXNetError:
continue
assert False
def bench_dot(lhs_shape, rhs_shape, lhs_stype, rhs_stype,
lhs_den, rhs_den, trans_lhs, ctx, num_repeat=10, fw="mxnet", distribution="uniform"):
set_default_context(ctx)
assert fw == "mxnet" or fw == "scipy"
# Set funcs
dot_func_sparse = mx.nd.sparse.dot if fw == "mxnet" else sp.spmatrix.dot
dot_func_dense = mx.nd.dot if fw == "mxnet" else np.dot
# Create matrix instances
lhs_nd = rand_ndarray(lhs_shape, lhs_stype, density=lhs_den, distribution=distribution)
# only uniform distribution supported for rhs
if rhs_stype == 'csr':
rhs_nd = rand_ndarray(rhs_shape, rhs_stype, density=rhs_den, distribution=distribution)
else:
rhs_nd = rand_ndarray(rhs_shape, rhs_stype, density=rhs_den, distribution="uniform")
lhs_dns = None
rhs_dns = None
dense_cost = None
sparse_cost = None
if fw == "mxnet":
lhs_dns = lhs_nd if lhs_stype == 'default' else lhs_nd.tostype('default')
rhs_dns = rhs_nd if rhs_stype == 'default' else rhs_nd.tostype('default')
# One warm up run, verify correctness
out = dot_func_sparse(lhs_nd, rhs_dns, trans_lhs)
out_expected = dot_func_dense(lhs_dns, rhs_dns, trans_lhs)
assert_almost_equal(out.asnumpy(), out_expected.asnumpy(), rtol=1e-1, atol=1e-1)
sparse_cost = measure_cost(num_repeat, False, False, dot_func_sparse, lhs_nd, rhs_nd, trans_lhs)
dense_cost = measure_cost(num_repeat, False, False, dot_func_dense, lhs_dns, rhs_dns, trans_lhs)
else:
lhs_dns = lhs_nd.asnumpy()
rhs_dns = rhs_nd.asnumpy()
lhs_nd = sp.csr_matrix(lhs_nd.asnumpy())
rhs_nd = rhs_nd.asnumpy()
# One warm up run, verify correctness
lhs_nd_copy = sp.spmatrix.transpose(lhs_nd) if trans_lhs else lhs_nd
out = dot_func_sparse(lhs_nd_copy, rhs_dns)
sparse_cost = measure_cost(num_repeat, trans_lhs, False, dot_func_sparse, lhs_nd, rhs_nd)
dense_cost = measure_cost(num_repeat, trans_lhs, True, dot_func_dense, lhs_dns, rhs_dns)
speedup = dense_cost / sparse_cost
# Print results
m = lhs_shape[0]
k = lhs_shape[1]
n = rhs_shape[1]
result_pattern = '{:15.1f} {:15.1f} {:>10} {:8d} {:8d} {:8d} {:13.2f} {:13.2f} {:8.2f}'
results = result_pattern.format(lhs_den*100,
rhs_den*100,
str(ctx),
m,
k,
n,
sparse_cost*1000,
dense_cost*1000,
speedup)
print(results)
def bench_dot(lhs_row_dim, lhs_col_dim, rhs_col_dim, density,
rhs_density, dot_func, trans_lhs, lhs_stype,
rhs_stype, only_storage, distribution="uniform"):
""" Benchmarking both storage and dot
"""
lhs_nd = rand_ndarray((lhs_row_dim, lhs_col_dim), lhs_stype, density, distribution=distribution)
if not only_storage:
rhs_nd = rand_ndarray((lhs_col_dim, rhs_col_dim), rhs_stype,
density=rhs_density, distribution=distribution)
out = dot_func(lhs_nd, rhs_nd, trans_lhs)
mx.nd.waitall()
def check_fullyconnected_training(stype):
data_shape = rand_shape_nd(2)
weight_shape = rand_shape_nd(2)
weight_shape = (weight_shape[0], data_shape[1])
for density in [1.0, 0.5, 0.0]:
x = rand_ndarray(shape=data_shape, stype=stype, density=density)
w = rand_ndarray(shape=weight_shape, stype=stype, density=density)
x_sym = mx.sym.Variable("data")
w_sym = mx.sym.Variable("weight")
sym = mx.sym.FullyConnected(data=x_sym, weight=w_sym, num_hidden=weight_shape[0], no_bias=True)
in_location = [x, w]
check_numeric_gradient(sym, in_location, numeric_eps=1e-3, rtol=1e-3, atol=5e-3)
def check_fullyconnected_training(stype):
data_shape = rand_shape_nd(2)
weight_shape = rand_shape_nd(2)
weight_shape = (weight_shape[0], data_shape[1])
for density in [1.0, 0.5, 0.0]:
x = rand_ndarray(shape=data_shape, stype=stype, density=density)
w = rand_ndarray(shape=weight_shape, stype=stype, density=density)
x_sym = mx.sym.Variable("data")
w_sym = mx.sym.Variable("weight")
sym = mx.sym.FullyConnected(data=x_sym, weight=w_sym, num_hidden=weight_shape[0], no_bias=True)
in_location = [x, w]
check_numeric_gradient(sym, in_location, numeric_eps=1e-3, rtol=1e-3, atol=5e-3)
def bench_dot(lhs_shape, rhs_shape, lhs_stype, rhs_stype,
lhs_den, rhs_den, trans_lhs, ctx, num_repeat=10, fw="mxnet", distribution="uniform"):
set_default_context(ctx)
assert fw == "mxnet" or fw == "scipy"
# Set funcs
dot_func_sparse = mx.nd.dot if fw == "mxnet" else sp.spmatrix.dot
dot_func_dense = mx.nd.dot if fw == "mxnet" else np.dot
# Create matrix instances
lhs_nd = rand_ndarray(lhs_shape, lhs_stype, density=lhs_den, distribution=distribution)
# only uniform distribution supported for rhs
rhs_nd = rand_ndarray(rhs_shape, rhs_stype, density=rhs_den, distribution="uniform")
lhs_dns = None
rhs_dns = None
dense_cost = None
sparse_cost = None
if fw == "mxnet":
lhs_dns = lhs_nd if lhs_stype == 'default' else lhs_nd.tostype('default')
rhs_dns = rhs_nd if rhs_stype == 'default' else rhs_nd.tostype('default')
# One warm up run, verify correctness
out = dot_func_sparse(lhs_nd, rhs_dns, trans_lhs)
out_expected = dot_func_dense(lhs_dns, rhs_dns, trans_lhs)
assert_almost_equal(out.asnumpy(), out_expected.asnumpy(), rtol=1e-1, atol=1e-1)
sparse_cost = measure_cost(num_repeat, False, False, dot_func_sparse, lhs_nd, rhs_nd, trans_lhs)
dense_cost = measure_cost(num_repeat, False, False, dot_func_dense, lhs_dns, rhs_dns, trans_lhs)
else:
lhs_dns = lhs_nd.asnumpy()
rhs_dns = rhs_nd.asnumpy()
lhs_nd = sp.csr_matrix(lhs_nd.asnumpy())
rhs_nd = rhs_nd.asnumpy()
# One warm up run, verify correctness
lhs_nd_copy = sp.spmatrix.transpose(lhs_nd) if trans_lhs else lhs_nd
out = dot_func_sparse(lhs_nd_copy, rhs_dns)
sparse_cost = measure_cost(num_repeat, trans_lhs, False, dot_func_sparse, lhs_nd, rhs_nd)
dense_cost = measure_cost(num_repeat, trans_lhs, True, dot_func_dense, lhs_dns, rhs_dns)
speedup = dense_cost / sparse_cost
# Print results
m = lhs_shape[0]
k = lhs_shape[1]
n = rhs_shape[1]
result_pattern = '{:15.1f} {:15.1f} {:>10} {:8d} {:8d} {:8d} {:13.2f} {:13.2f} {:8.2f}'
results = result_pattern.format(lhs_den*100,
rhs_den*100,
str(ctx),
m,
k,
n,
sparse_cost*1000,
dense_cost*1000,
speedup)
print(results)
def compare_optimizer(opt1, opt2, shape, dtype, w_stype='default', g_stype='default',
rtol=1e-4, atol=1e-5, compare_states=True):
"""Compare opt1 and opt2."""
if not isinstance(shape, list):
if w_stype == 'default':
w2 = mx.random.uniform(shape=shape, ctx=default_context(), dtype=dtype)
w1 = w2.copyto(default_context())
elif w_stype == 'row_sparse' or w_stype == 'csr':
w2 = rand_ndarray(shape, w_stype, density=1, dtype=dtype)
w1 = w2.copyto(default_context()).tostype('default')
else:
raise Exception("type not supported yet")
if g_stype == 'default':
g2 = mx.random.uniform(shape=shape, ctx=default_context(), dtype=dtype)
g1 = g2.copyto(default_context())
elif g_stype == 'row_sparse' or g_stype == 'csr':
g2 = rand_ndarray(shape, g_stype, dtype=dtype)
g1 = g2.copyto(default_context()).tostype('default')
else:
raise Exception("type not supported yet")
state1 = opt1.create_state_multi_precision(0, w1)
state2 = opt2.create_state_multi_precision(0, w2)
if compare_states:
compare_ndarray_tuple(state1, state2)
opt1.update_multi_precision(0, w1, g1, state1)
opt2.update_multi_precision(0, w2, g2, state2)
if compare_states:
compare_ndarray_tuple(state1, state2, rtol=rtol, atol=atol)
assert_almost_equal(w1.asnumpy(), w2.asnumpy(), rtol=rtol, atol=atol)
else:
# test multi-tensor: Opt1 single-tensor reference, Opt2 multi-tensor
from copy import deepcopy
ntensors = len(shape)
w1, g1 = [], []
for s in shape:
w1.append(mx.random.uniform(shape=s, ctx=default_context(), dtype=dtype))
g1.append(mx.random.uniform(shape=s, ctx=default_context(), dtype=dtype))
w1 = tuple(w1)
w2 = deepcopy(w1)
g1 = tuple(g1)
g2 = deepcopy(g1)
state2 = [opt2.create_state_multi_precision(0, w2[i]) for i in range(ntensors)]
opt2.update_multi_precision(list(range(ntensors)), w2, g2, state2)
for i in range(ntensors):
state1 = opt1.create_state_multi_precision(i, w1[i])
opt1.update_multi_precision(i, w1[i], g1[i], state1)
if compare_states:
compare_ndarray_tuple(state1, state2[i], rtol, atol)
assert_almost_equal(w1[i].asnumpy(), w2[i].asnumpy(), rtol=rtol, atol=atol)
def check_sparse_aggregator(sparse_pull):
stype = 'row_sparse'
kv = init_kv_with_str(stype)
# devices
num_devs = 4
devs = [mx.Context('cpu', i) for i in range(num_devs)]
# single
vals = [
rand_ndarray(shape, stype).copyto(devs[i]) for i in range(num_devs)
]
expected_sum = np.zeros(shape)
for v in vals:
expected_sum += v.asnumpy()
# prepare row_ids
kv.push('a', vals)
if sparse_pull:
all_rows = mx.nd.array(np.arange(shape[0]))
kv.row_sparse_pull('a', out=vals, row_ids=[all_rows] * len(vals))
else:
kv.pull('a', out=vals, ignore_sparse=False)
result_sum = np.zeros(shape)
for v in vals:
result_sum += v.asnumpy()
assert_almost_equal(result_sum, expected_sum * num_devs)
# list
vals = [[
rand_ndarray(shape, stype).copyto(devs[i]) for i in range(num_devs)
]] * len(keys)
expected_sum = np.zeros(shape)
for v in vals[0]:
expected_sum += v.asnumpy()
kv.push(str_keys, vals)
if sparse_pull:
kv.row_sparse_pull(str_keys,
out=vals,
row_ids=[[all_rows] * num_devs] * len(vals))
else:
kv.pull(str_keys, out=vals, ignore_sparse=False)
for vv in vals:
result_sum = np.zeros(shape)
for v in vv:
result_sum += v.asnumpy()
assert_almost_equal(result_sum, expected_sum * num_devs)
def run_benchmark(mini_path):
"""Run benchmarks
"""
data_shape = (feature_dim, )
train_iter = _get_iter(mini_path, data_shape, batch_size)
weight_row_dim = batch_size if transpose else feature_dim
weight_shape = (weight_row_dim, output_dim)
if not rsp:
weight = mx.nd.random.uniform(low=0, high=1, shape=weight_shape)
else:
weight = rand_ndarray(weight_shape, "row_sparse", density=0.05, distribution="uniform")
total_cost = {}
average_cost = {}
count = 0
total_cost["sparse"] = 0.
total_cost["dense"] = 0.
for _ in train_iter:
csr_data = train_iter.getdata()
dns_data = csr_data.tostype('default')
cost_sparse = measure_cost(num_repeat, False, False, mx.nd.sparse.dot, csr_data, weight, transpose_a=transpose)
cost_dense = measure_cost(num_repeat, False, False, mx.nd.dot, dns_data, weight, transpose_a=transpose)
total_cost["sparse"] += cost_sparse
total_cost["dense"] += cost_dense
count = count + 1
average_cost["sparse"] = total_cost["sparse"] / count
average_cost["dense"] = total_cost["dense"] / count
return (average_cost["sparse"], average_cost["dense"])
def run_benchmark(mini_path):
"""Run benchmarks
"""
data_shape = (feature_dim, )
train_iter = _get_iter(mini_path, data_shape, batch_size)
weight_row_dim = batch_size if transpose else feature_dim
weight_shape = (weight_row_dim, output_dim)
if not rsp:
weight = mx.nd.random_uniform(low=0, high=1, shape=weight_shape)
else:
weight = rand_ndarray(weight_shape, "row_sparse", density=0.05, distribution="uniform")
total_cost = {}
average_cost = {}
count = 0
total_cost["sparse"] = 0.
total_cost["dense"] = 0.
for _ in train_iter:
csr_data = train_iter.getdata()
dns_data = csr_data.tostype('default')
cost_sparse = measure_cost(num_repeat, False, False, mx.nd.dot, csr_data, weight, transpose_a=transpose)
cost_dense = measure_cost(num_repeat, False, False, mx.nd.dot, dns_data, weight, transpose_a=transpose)
total_cost["sparse"] += cost_sparse
total_cost["dense"] += cost_dense
count = count + 1
average_cost["sparse"] = total_cost["sparse"] / count
average_cost["dense"] = total_cost["dense"] / count
return (average_cost["sparse"], average_cost["dense"])
def test_np_transpose():
def np_transpose_grad(out_shape, dtype, axes=None):
ograd = _np.ones(out_shape, dtype=dtype)
if axes is None or axes == ():
return _np.transpose(ograd, axes)
np_axes = _np.array(list(axes))
return _np.transpose(ograd, tuple(list(_np.argsort(np_axes))))
class TestTranspose(HybridBlock):
def __init__(self, axes=None):
super(TestTranspose, self).__init__()
self.axes = axes
def hybrid_forward(self, F, a):
return F.np.transpose(a, self.axes)
for hybridize in [True, False]:
for dtype in [_np.int32, _np.float32]:
for ndim in range(7):
shape = rand_shape_nd(ndim, dim=5, allow_zero_size=True)
axeses = [None]
if ndim == 0:
axeses += [()]
else:
axes = [i for i in range(ndim)]
axeses.append(tuple(axes))
random.shuffle(axes)
axeses.append(tuple(axes))
for axes in axeses:
test_trans = TestTranspose(axes)
if hybridize:
test_trans.hybridize()
x = rand_ndarray(shape).as_np_ndarray()
x = x.astype(dtype)
x.attach_grad()
np_out = _np.transpose(x.asnumpy(), axes)
with mx.autograd.record():
mx_out = test_trans(x)
assert mx_out.shape == np_out.shape
assert_almost_equal(mx_out.asnumpy(),
np_out,
rtol=1e-3,
atol=1e-5,
use_broadcast=False)
mx_out.backward()
np_backward = np_transpose_grad(np_out.shape, dtype, axes)
assert_almost_equal(x.grad.asnumpy(),
np_backward,
rtol=1e-3,
atol=1e-5,
use_broadcast=False)
mx_out = np.transpose(x, axes)
np_out = _np.transpose(x.asnumpy(), axes)
assert_almost_equal(mx_out.asnumpy(),
np_out,
rtol=1e-3,
atol=1e-5,
use_broadcast=False)
def test_lstmp():
hidden_size, projection_size = 3, 2
rtol, atol = 1e-2, 1e-2
batch_size, seq_len = 7, 11
input_size = 5
device = mx.gpu(0)
lstm_input = mx.np.random.uniform(
size=(seq_len, batch_size, input_size), device=device)
shapes = {'i2h_weight': (hidden_size * 4, input_size),
'h2h_weight': (hidden_size * 4, projection_size),
'i2h_bias': (hidden_size * 4,),
'h2h_bias': (hidden_size * 4,),
'h2r_weight': (projection_size, hidden_size)}
weights = {k: rand_ndarray(v).as_np_ndarray() for k, v in shapes.items()}
lstm_layer = gluon.rnn.LSTM(hidden_size, projection_size=projection_size,
input_size=input_size)
lstm_cell = gluon.rnn.LSTMPCell(hidden_size=hidden_size,
projection_size=projection_size,
input_size=input_size)
lstm_layer.initialize(device=device)
lstm_cell.initialize(device=device)
layer_params = lstm_layer.collect_params()
cell_params = lstm_cell.collect_params()
params = (weights['{}_{}'.format(g, t)].reshape(-1)
for t in ['weight', 'bias']
for g in ['i2h', 'h2h', 'h2r']
if g != 'h2r' or t != 'bias')
net_params_concat = mx.np.concatenate(params)
layer_params['rnn_param'].set_data(net_params_concat)
for k, v in weights.items():
cell_params[k].set_data(v)
with autograd.record():
layer_output = lstm_layer(lstm_input.copy())
cell_output = lstm_cell.unroll(seq_len, lstm_input.copy(), layout='TNC',
merge_outputs=True)[0]
assert_almost_equal(layer_output, cell_output, rtol=rtol, atol=atol)
layer_output.backward()
cell_output.backward()
layer_params_split = split_rnn_params(layer_params['rnn_param'].grad(),\
'lstm', 1, input_size, hidden_size, False, projection_size=projection_size)
for k, _ in weights.items():
layer_grad = layer_params_split['l0_' + k]
cell_grad = cell_params[k].grad()
print('checking gradient for {}'.format('lstm0_l0_' + k))
assert_almost_equal(layer_grad, cell_grad, rtol=rtol, atol=atol)
check_rnn_layer_forward(gluon.rnn.LSTM(
10, 2, projection_size=5), mx.np.ones((8, 3, 20)), device=device)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, projection_size=5, bidirectional=True), mx.np.ones(
(8, 3, 20)), [mx.np.ones((4, 3, 5)), mx.np.ones((4, 3, 10))], device=device)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, dropout=0.5, projection_size=5), mx.np.ones((8, 3, 20)),
run_only=True, device=device)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, bidirectional=True, dropout=0.5, projection_size=5),
mx.np.ones((8, 3, 20)),
[mx.np.ones((4, 3, 5)), mx.np.ones((4, 3, 10))], run_only=True, device=device)
lstm_layer.save_parameters('gpu_tmp.params')
lstm_layer.load_parameters('gpu_tmp.params')
def check_sparse_aggregator(sparse_pull):
stype = 'row_sparse'
kv = init_kv_with_str(stype)
# devices
num_devs = 4
devs = [mx.Context('cpu', i) for i in range(num_devs)]
# single
vals = [rand_ndarray(shape, stype).copyto(devs[i]) for i in range(num_devs)]
expected_sum = np.zeros(shape)
for v in vals:
expected_sum += v.asnumpy()
# prepare row_ids
kv.push('a', vals)
if sparse_pull:
all_rows = mx.nd.array(np.arange(shape[0]))
kv.row_sparse_pull('a', out=vals, row_ids=[all_rows] * len(vals))
else:
kv.pull('a', out=vals, ignore_sparse=False)
result_sum = np.zeros(shape)
for v in vals:
result_sum += v.asnumpy()
assert_almost_equal(result_sum, expected_sum * num_devs)
# list
vals = [[rand_ndarray(shape, stype).copyto(devs[i]) for i in range(num_devs)]] * len(keys)
expected_sum = np.zeros(shape)
for v in vals[0]:
expected_sum += v.asnumpy()
kv.push(str_keys, vals)
if sparse_pull:
kv.row_sparse_pull(str_keys, out=vals, row_ids=[[all_rows] * num_devs] * len(vals))
else:
kv.pull(str_keys, out=vals, ignore_sparse=False)
for vv in vals:
result_sum = np.zeros(shape)
for v in vv:
result_sum += v.asnumpy()
assert_almost_equal(result_sum, expected_sum * num_devs)
def test_quadratic_backward(self):
a = np.random.random_sample()
b = np.random.random_sample()
c = np.random.random_sample()
for ndim in range(1, 6):
shape = tu.rand_shape_nd(ndim, 5)
data = tu.rand_ndarray(shape=shape, stype='default')
data_np = data.asnumpy()
data = mx.sym.Variable('data')
quad_sym = mx.sym.contrib.quadratic_v2(data=data, a=a, b=b, c=c)
def test_lstmp():
hidden_size, projection_size = 3, 2
rtol, atol = 1e-2, 1e-2
batch_size, seq_len = 7, 11
input_size = 5
ctx = mx.gpu(0)
lstm_input = mx.nd.uniform(
shape=(seq_len, batch_size, input_size), ctx=ctx)
shapes = {'i2h_weight': (hidden_size * 4, input_size),
'h2h_weight': (hidden_size * 4, projection_size),
'i2h_bias': (hidden_size * 4,),
'h2h_bias': (hidden_size * 4,),
'h2r_weight': (projection_size, hidden_size)}
weights = {k: rand_ndarray(v) for k, v in shapes.items()}
lstm_layer = gluon.rnn.LSTM(hidden_size, projection_size=projection_size,
input_size=input_size, prefix='lstm0_')
lstm_cell = gluon.contrib.rnn.LSTMPCell(hidden_size=hidden_size,
projection_size=projection_size,
input_size=input_size,
prefix='lstm0_l0_')
lstm_layer.initialize(ctx=ctx)
lstm_cell.initialize(ctx=ctx)
layer_params = lstm_layer.collect_params()
cell_params = lstm_cell.collect_params()
for k, v in weights.items():
layer_params['lstm0_l0_' + k].set_data(v.copy())
cell_params['lstm0_l0_' + k].set_data(v.copy())
with autograd.record():
layer_output = lstm_layer(lstm_input.copy())
cell_output = lstm_cell.unroll(seq_len, lstm_input.copy(), layout='TNC',
merge_outputs=True)[0]
assert_almost_equal(layer_output, cell_output, rtol=rtol, atol=atol)
layer_output.backward()
cell_output.backward()
for k, v in weights.items():
layer_grad = layer_params['lstm0_l0_' + k].grad()
cell_grad = cell_params['lstm0_l0_' + k].grad()
print('checking gradient for {}'.format('lstm0_l0_' + k))
assert_almost_equal(layer_grad, cell_grad, rtol=rtol, atol=atol)
check_rnn_layer_forward(gluon.rnn.LSTM(
10, 2, projection_size=5), mx.nd.ones((8, 3, 20)), ctx=ctx)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, projection_size=5, bidirectional=True), mx.nd.ones(
(8, 3, 20)), [mx.nd.ones((4, 3, 5)), mx.nd.ones((4, 3, 10))], ctx=ctx)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, dropout=0.5, projection_size=5), mx.nd.ones((8, 3, 20)),
run_only=True, ctx=ctx)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, bidirectional=True, dropout=0.5, projection_size=5),
mx.nd.ones((8, 3, 20)),
[mx.nd.ones((4, 3, 5)), mx.nd.ones((4, 3, 10))], run_only=True, ctx=ctx)
lstm_layer.save_parameters('gpu_tmp.params')
lstm_layer.load_parameters('gpu_tmp.params')
def test_lstmp():
hidden_size, projection_size = 3, 2
rtol, atol = 1e-2, 1e-2
batch_size, seq_len = 7, 11
input_size = 5
ctx = mx.gpu(0)
lstm_input = mx.nd.uniform(
shape=(seq_len, batch_size, input_size), ctx=ctx)
shapes = {'i2h_weight': (hidden_size * 4, input_size),
'h2h_weight': (hidden_size * 4, projection_size),
'i2h_bias': (hidden_size * 4,),
'h2h_bias': (hidden_size * 4,),
'h2r_weight': (projection_size, hidden_size)}
weights = {k: rand_ndarray(v) for k, v in shapes.items()}
lstm_layer = gluon.rnn.LSTM(hidden_size, projection_size=projection_size,
input_size=input_size, prefix='lstm0_')
lstm_cell = gluon.contrib.rnn.LSTMPCell(hidden_size=hidden_size,
projection_size=projection_size,
input_size=input_size,
prefix='lstm0_l0_')
lstm_layer.initialize(ctx=ctx)
lstm_cell.initialize(ctx=ctx)
layer_params = lstm_layer.collect_params()
cell_params = lstm_cell.collect_params()
for k, v in weights.items():
layer_params['lstm0_l0_' + k].set_data(v.copy())
cell_params['lstm0_l0_' + k].set_data(v.copy())
with autograd.record():
layer_output = lstm_layer(lstm_input.copy())
cell_output = lstm_cell.unroll(seq_len, lstm_input.copy(), layout='TNC',
merge_outputs=True)[0]
assert_almost_equal(layer_output.asnumpy(),
cell_output.asnumpy(), rtol=rtol, atol=atol)
layer_output.backward()
cell_output.backward()
for k, v in weights.items():
layer_grad = layer_params['lstm0_l0_' + k].grad()
cell_grad = cell_params['lstm0_l0_' + k].grad()
print('checking gradient for {}'.format('lstm0_l0_' + k))
assert_almost_equal(layer_grad.asnumpy(), cell_grad.asnumpy(),
rtol=rtol, atol=atol)
check_rnn_layer_forward(gluon.rnn.LSTM(
10, 2, projection_size=5), mx.nd.ones((8, 3, 20)), ctx=ctx)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, projection_size=5, bidirectional=True), mx.nd.ones(
(8, 3, 20)), [mx.nd.ones((4, 3, 5)), mx.nd.ones((4, 3, 10))], ctx=ctx)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, dropout=0.5, projection_size=5), mx.nd.ones((8, 3, 20)),
run_only=True, ctx=ctx)
check_rnn_layer_forward(gluon.rnn.LSTM(10, 2, bidirectional=True, dropout=0.5, projection_size=5),
mx.nd.ones((8, 3, 20)),
[mx.nd.ones((4, 3, 5)), mx.nd.ones((4, 3, 10))], run_only=True, ctx=ctx)
def test_sparse_aggregator():
"""aggregate sparse ndarray on muliple devices"""
stype = 'row_sparse'
kv = init_kv_with_str(stype)
# devices
num_devs = 4
devs = [mx.Context('cpu', i) for i in range(num_devs)]
# single
vals = [rand_ndarray(shape, stype).copyto(devs[i]) for i in range(num_devs)]
expected_sum = np.zeros(shape)
for v in vals:
expected_sum += v.asnumpy()
# prepare row_ids
all_rows = mx.nd.array(np.arange(shape[0]), dtype='int64')
kv.push('a', vals)
kv.row_sparse_pull('a', out=vals, row_ids=[all_rows] * len(vals))
result_sum = np.zeros(shape)
for v in vals:
result_sum += v.asnumpy()
assert_almost_equal(result_sum, expected_sum * num_devs)
# list
vals = [[rand_ndarray(shape, stype).copyto(devs[i]) for i in range(num_devs)]] * len(keys)
expected_sum = np.zeros(shape)
for v in vals[0]:
expected_sum += v.asnumpy()
kv.push(str_keys, vals)
kv.row_sparse_pull(str_keys, out=vals, row_ids=[[all_rows] * num_devs] * len(vals))
for vv in vals:
result_sum = np.zeros(shape)
for v in vv:
result_sum += v.asnumpy()
assert_almost_equal(result_sum, expected_sum * num_devs)
def test_depthtospace():
def numpy_depth_to_space(x, blocksize):
b, c, h, w = x.shape[0], x.shape[1], x.shape[2], x.shape[3]
tmp = np.reshape(x, [b, blocksize, blocksize, c // (blocksize**2), h, w])
tmp = np.transpose(tmp, [0, 3, 4, 1, 5, 2])
y = np.reshape(tmp, [b, c // (blocksize**2), h * blocksize, w * blocksize])
return y
shape_inp = (LARGE_X, 8, 4, 2)
data = rand_ndarray(shape_inp, 'default')
data_np = data.asnumpy()
expected = numpy_depth_to_space(data_np, 2)
output = mx.nd.depth_to_space(data, 2)
assert_almost_equal(output.asnumpy(), expected, atol=1e-3, rtol=1e-3)
def test_spacetodepth():
def numpy_space_to_depth(x, blocksize):
b, c, h, w = x.shape[0], x.shape[1], x.shape[2], x.shape[3]
tmp = np.reshape(x, [b, c, h // blocksize, blocksize, w // blocksize, blocksize])
tmp = np.transpose(tmp, [0, 3, 5, 1, 2, 4])
y = np.reshape(tmp, [b, c * (blocksize**2), h // blocksize, w // blocksize])
return y
shape_inp = (LARGE_X, 2, 8, 4)
data = rand_ndarray(shape_inp, 'default')
data_np = data.asnumpy()
expected = numpy_space_to_depth(data_np, 2)
output = mx.nd.space_to_depth(data, 2)
assert_almost_equal(output.asnumpy(), expected, atol=1e-3, rtol=1e-3)
def compare_optimizer(opt1,
opt2,
shape,
dtype,
w_stype='default',
g_stype='default',
rtol=1e-4,
atol=1e-5,
compare_states=True):
"""Compare opt1 and opt2."""
if w_stype == 'default':
w2 = mx.random.uniform(shape=shape, ctx=default_context(), dtype=dtype)
w1 = w2.copyto(default_context())
elif w_stype == 'row_sparse' or w_stype == 'csr':
w2 = rand_ndarray(shape, w_stype, density=1, dtype=dtype)
w1 = w2.copyto(default_context()).tostype('default')
else:
raise Exception("type not supported yet")
if g_stype == 'default':
g2 = mx.random.uniform(shape=shape, ctx=default_context(), dtype=dtype)
g1 = g2.copyto(default_context())
elif g_stype == 'row_sparse' or g_stype == 'csr':
g2 = rand_ndarray(shape, g_stype, dtype=dtype)
g1 = g2.copyto(default_context()).tostype('default')
else:
raise Exception("type not supported yet")
state1 = opt1.create_state_multi_precision(0, w1)
state2 = opt2.create_state_multi_precision(0, w2)
if compare_states:
compare_ndarray_tuple(state1, state2)
opt1.update_multi_precision(0, w1, g1, state1)
opt2.update_multi_precision(0, w2, g2, state2)
if compare_states:
compare_ndarray_tuple(state1, state2, rtol=rtol, atol=atol)
assert_almost_equal(w1.asnumpy(), w2.asnumpy(), rtol=rtol, atol=atol)
def bench_dot(lhs_row_dim,
lhs_col_dim,
rhs_col_dim,
density,
rhs_density,
dot_func,
trans_lhs,
lhs_stype,
rhs_stype,
only_storage,
distribution="uniform"):
""" Benchmarking both storage and dot
"""
lhs_nd = rand_ndarray((lhs_row_dim, lhs_col_dim),
lhs_stype,
density,
distribution=distribution)
if not only_storage:
rhs_nd = rand_ndarray((lhs_col_dim, rhs_col_dim),
rhs_stype,
density=rhs_density,
distribution=distribution)
out = dot_func(lhs_nd, rhs_nd, trans_lhs)
mx.nd.waitall()
def test_quadratic_forward(self):
def f(x, a, b, c):
return a * x**2 + b * x + c
a = np.random.random_sample()
b = np.random.random_sample()
c = np.random.random_sample()
for ndim in range(1, 6):
shape = tu.rand_shape_nd(ndim, 5)
data = tu.rand_ndarray(shape=shape, stype='default')
data_np = data.asnumpy()
expected = f(data_np, a, b, c)
output = mx.nd.contrib.quadratic_v2(data=data, a=a, b=b,
c=c).asnumpy()
tu.assert_almost_equal(output, expected)
def test_sparse_aggregator():
"""aggregate sparse ndarray on muliple devices"""
stype = 'row_sparse'
kv = init_kv(stype)
# devices
num_devs = 4
devs = [mx.Context('cpu', i) for i in range(num_devs)]
# single
vals = [rand_ndarray(shape, stype).copyto(devs[i]) for i in range(num_devs)]
expected_sum = np.zeros(shape)
for v in vals:
expected_sum += v.asnumpy()
kv.push(3, vals)
kv.pull(3, out = vals)
result_sum = np.zeros(shape)
for v in vals:
result_sum += v.asnumpy()
assert_almost_equal(result_sum, expected_sum * num_devs)
# list
vals = [[rand_ndarray(shape, stype).copyto(devs[i]) for i in range(num_devs)]] * len(keys)
expected_sum = np.zeros(shape)
for v in vals[0]:
expected_sum += v.asnumpy()
kv.push(keys, vals)
kv.pull(keys, out = vals)
for vv in vals:
result_sum = np.zeros(shape)
for v in vv:
result_sum += v.asnumpy()
assert_almost_equal(result_sum, expected_sum * num_devs)
def test_np_reshape():
class TestReshape(HybridBlock):
def __init__(self, newshape):
super(TestReshape, self).__init__()
self._newshape = newshape
def hybrid_forward(self, F, a):
return F.np.reshape(a, self._newshape)
shape_pairs = [((2, 6), (6, 2)), ((2, 6), (3, 4)), ((1, 0), (0, )),
((0, 0), (0, )), ((), (1, 1, 1))]
for hybridize in [True, False]:
for shape_pair in shape_pairs:
shape1, shape2 = shape_pair
print(shape1, shape2)
test_reshape = TestReshape(shape2)
if hybridize:
test_reshape.hybridize()
x = rand_ndarray(shape1).as_np_ndarray()
x.attach_grad()
np_out = _np.reshape(x.asnumpy(), shape2)
with mx.autograd.record():
mx_out = test_reshape(x)
assert mx_out.shape == np_out.shape
assert_almost_equal(mx_out.asnumpy(),
np_out,
rtol=1e-3,
atol=1e-5,
use_broadcast=False)
mx_out.backward()
np_backward = _np.ones(shape1)
assert_almost_equal(x.grad.asnumpy(),
np_backward,
rtol=1e-3,
atol=1e-5,
use_broadcast=False)
mx_out = np.reshape(x, shape2)
np_out = _np.reshape(x.asnumpy(), shape2)
assert_almost_equal(mx_out.asnumpy(),
np_out,
rtol=1e-3,
atol=1e-5,
use_broadcast=False)
def test_quantize_float32_to_int8():
shape = rand_shape_nd(4)
data = rand_ndarray(shape, 'default', dtype='float32')
min_range = mx.nd.min(data)
max_range = mx.nd.max(data)
qdata, min_val, max_val = mx.nd.contrib.quantize(data, min_range, max_range, out_type='int8')
data_np = data.asnumpy()
min_range = min_range.asscalar()
max_range = max_range.asscalar()
real_range = np.maximum(np.abs(min_range), np.abs(max_range))
quantized_range = 127.0
scale = quantized_range / real_range
assert qdata.dtype == np.int8
assert min_val.dtype == np.float32
assert max_val.dtype == np.float32
assert same(min_val.asscalar(), -real_range)
assert same(max_val.asscalar(), real_range)
qdata_np = (np.sign(data_np) * np.minimum(np.abs(data_np) * scale + 0.5, quantized_range)).astype(np.int8)
assert same(qdata.asnumpy(), qdata_np)
def check_regression(symbol, forward, shape):
# init executor
data_s = mx.symbol.Variable('data')
label_s = mx.symbol.Variable('label')
out_s = symbol(data=data_s, label=label_s)
exe = out_s.simple_bind(ctx=mx.cpu(0), data=shape, label=shape)
arg_map = dict(zip(out_s.list_arguments(), exe.arg_arrays))
# init data
data = mx.random.uniform(-1, -1, shape)
arg_map["data"][:] = data
atol = 1e-5
density = 0.5
stype = 'default'
label = arg_map["label"]
label[:] = rand_ndarray(shape, stype, density=density)
exe.forward(is_train=True)
exe.backward()
np_out = forward(data.asnumpy())
assert_almost_equal(exe.outputs[0].asnumpy(), np_out, atol=atol)
def test_quantize_float32_to_int8():
shape = rand_shape_nd(4)
data = rand_ndarray(shape, 'default', dtype='float32')
min_range = mx.nd.min(data)
max_range = mx.nd.max(data)
qdata, min_val, max_val = mx.nd.contrib.quantize(data, min_range, max_range, out_type='int8')
data_np = data.asnumpy()
min_range = min_range.asscalar()
max_range = max_range.asscalar()
real_range = np.maximum(np.abs(min_range), np.abs(max_range))
quantized_range = 127.0
scale = quantized_range / real_range
assert qdata.dtype == np.int8
assert min_val.dtype == np.float32
assert max_val.dtype == np.float32
assert same(min_val.asscalar(), -real_range)
assert same(max_val.asscalar(), real_range)
qdata_np = (np.sign(data_np) * np.minimum(np.abs(data_np) * scale + 0.5, quantized_range)).astype(np.int8)
assert_almost_equal(qdata.asnumpy(), qdata_np, atol = 1)
def test_np_tensordot():
class TestTensordot(HybridBlock):
def __init__(self, axes):
super(TestTensordot, self).__init__()
self._axes = axes
def hybrid_forward(self, F, a, b):
return F.np.tensordot(a, b, self._axes)
def tensordot_backward(a, b, axes=2):
if (a.ndim < 1) or (b.ndim < 1):
raise ValueError('An input is zero-dim')
if _np.isscalar(axes):
a_axes_summed = [i + a.ndim - axes for i in range(axes)]
b_axes_summed = [i for i in range(axes)]
else:
if len(axes) != 2:
raise ValueError('Axes must consist of two arrays.')
a_axes_summed, b_axes_summed = axes
if _np.isscalar(a_axes_summed):
a_axes_summed = a_axes_summed,
if _np.isscalar(b_axes_summed):
b_axes_summed = b_axes_summed,
for i in range(len(a_axes_summed)):
a_axes_summed[i] = (a_axes_summed[i] + a.ndim) % a.ndim
for i in range(len(b_axes_summed)):
b_axes_summed[i] = (b_axes_summed[i] + b.ndim) % b.ndim
if len(a_axes_summed) != len(b_axes_summed):
raise ValueError('Axes length mismatch')
a_axes_remained = []
for i in range(a.ndim):
if not (i in a_axes_summed):
a_axes_remained.append(i)
a_axes = a_axes_remained[:] + a_axes_summed[:]
b_axes_remained = []
for i in range(b.ndim):
if not (i in b_axes_summed):
b_axes_remained.append(i)
b_axes = b_axes_summed[:] + b_axes_remained[:]
ad1 = _np.prod([a.shape[i] for i in a_axes_remained
]) if len(a_axes_remained) > 0 else 1
ad2 = _np.prod([a.shape[i] for i in a_axes_summed
]) if len(a_axes_summed) > 0 else 1
bd1 = _np.prod([b.shape[i] for i in b_axes_summed
]) if len(b_axes_summed) > 0 else 1
bd2 = _np.prod([b.shape[i] for i in b_axes_remained
]) if len(b_axes_remained) > 0 else 1
out_grad = _np.ones((ad1, bd2))
new_a = _np.transpose(a, a_axes)
new_a_shape = new_a.shape[:]
new_a = new_a.reshape((ad1, ad2))
new_b = _np.transpose(b, b_axes)
new_b_shape = new_b.shape[:]
new_b = new_b.reshape((bd1, bd2))
reverse_a_axes = [0 for i in a_axes]
for i in range(len(a_axes)):
reverse_a_axes[a_axes[i]] = i
reverse_b_axes = [0 for i in b_axes]
for i in range(len(b_axes)):
reverse_b_axes[b_axes[i]] = i
grad_b = _np.dot(new_a.T, out_grad).reshape(new_b_shape)
grad_b = _np.transpose(grad_b, reverse_b_axes)
grad_a = _np.dot(out_grad, new_b.T).reshape(new_a_shape)
grad_a = _np.transpose(grad_a, reverse_a_axes)
return [grad_a, grad_b]
# test non zero size input
tensor_shapes = [
((3, 5), (5, 4), 1), # (a_shape, b_shape, axes)
((3, ), (3, ), 1),
((3, 4, 5, 3, 2), (5, 3, 2, 1, 2), 3),
((3, 5, 4, 3, 2), (2, 3, 5, 1, 2), [[1, 3, 4], [2, 1, 0]]),
((3, 5, 4), (5, 4, 3), [[1, 0, 2], [0, 2, 1]]),
((3, 5, 4), (5, 3, 4), [[2, 0], [-1, -2]]),
((2, 2), (2, 2), 2),
((3, 5, 4), (5, ), [[-2], [0]]),
((3, 5, 4), (5, ), [[1], [0]]),
((2, ), (2, 3), 1),
((3, ), (3, ), 0),
((2, ), (2, 3), 0),
((3, 5, 4), (5, ), 0),
((2, 3, 4), (4, 3, 2), [[], []]),
((3, 0), (0, 5), 1),
((3, 0), (0, 4), [[1], [0]]),
((0, 3), (3, 5), 1),
((0, 3), (5, 0), [[0], [1]])
]
for hybridize in [True, False]:
for a_shape, b_shape, axes in tensor_shapes:
for dtype in [_np.float32, _np.float64]:
test_tensordot = TestTensordot(axes)
if hybridize:
test_tensordot.hybridize()
a = rand_ndarray(shape=a_shape, dtype=dtype).as_np_ndarray()
b = rand_ndarray(shape=b_shape, dtype=dtype).as_np_ndarray()
a.attach_grad()
b.attach_grad()
np_out = _np.tensordot(a.asnumpy(), b.asnumpy(), axes)
with mx.autograd.record():
mx_out = test_tensordot(a, b)
assert mx_out.shape == np_out.shape
assert_almost_equal(mx_out.asnumpy(),
np_out,
rtol=1e-3,
atol=1e-5)
mx_out.backward()
np_backward = tensordot_backward(a.asnumpy(), b.asnumpy(),
axes)
assert_almost_equal(a.grad.asnumpy(),
np_backward[0],
rtol=1e-3,
atol=1e-5)
assert_almost_equal(b.grad.asnumpy(),
np_backward[1],
rtol=1e-3,
atol=1e-5)
# Test imperative once again
mx_out = np.tensordot(a, b, axes)
np_out = _np.tensordot(a.asnumpy(), b.asnumpy(), axes)
assert_almost_equal(mx_out.asnumpy(),
np_out,
rtol=1e-3,
atol=1e-5)
# test numeric gradient
if (_np.prod(a_shape) > 0 and _np.prod(b_shape) > 0):
a_sym = mx.sym.Variable("a").as_np_ndarray()
b_sym = mx.sym.Variable("b").as_np_ndarray()
mx_sym = mx.sym.np.tensordot(a_sym, b_sym,
axes).as_nd_ndarray()
check_numeric_gradient(
mx_sym, [a.as_nd_ndarray(),
b.as_nd_ndarray()],
rtol=1e-1,
atol=1e-1,
dtype=dtype)
def check_binary_op_result(shape1, shape2, op, dtype=None):
if shape1 is None:
mx_input1 = abs(_np.random.uniform()) + 1
np_input1 = mx_input1
else:
mx_input1 = (rand_ndarray(shape1, dtype=dtype).abs() + 1).as_np_ndarray()
mx_input1.attach_grad()
np_input1 = mx_input1.asnumpy()
if shape2 is None:
mx_input2 = abs(_np.random.uniform()) + 1
np_input2 = mx_input2
else:
mx_input2 = (rand_ndarray(shape2, dtype=dtype).abs() + 1).as_np_ndarray()
mx_input2.attach_grad()
np_input2 = mx_input2.asnumpy()
scalar = None
reverse = False
if isinstance(mx_input1, mx.nd.NDArray) and not isinstance(mx_input2, mx.nd.NDArray):
scalar = mx_input2
reverse = False
elif isinstance(mx_input2, mx.nd.NDArray) and not isinstance(mx_input1, mx.nd.NDArray):
scalar = mx_input1
reverse = True
grad_func = _get_grad_func(op, scalar, reverse)
np_out = get_np_ret(np_input1, np_input2, op)
ograd = _np.ones_like(np_out)
for hybridize in [True, False]:
if scalar is None:
get_mx_ret_np = TestBinaryElementWiseOp(op)
get_mx_ret_classic = TestBinaryElementWiseOp(op)
if hybridize:
get_mx_ret_np.hybridize()
get_mx_ret_classic.hybridize()
if grad_func is None:
mx_out = get_mx_ret_np(mx_input1, mx_input2)
else:
with mx.autograd.record():
mx_out = get_mx_ret_np(mx_input1, mx_input2)
mx_out.backward()
assert type(mx_out) == np.ndarray
if op in logic_ops:
assert np_out.dtype == mx_out.dtype
assert_almost_equal(mx_out.asnumpy(), np_out, atol=1e-6, rtol=1e-5, use_broadcast=False)
if grad_func is not None:
x1_grad_expected, x2_grad_expected = grad_func(ograd, np_input1, np_input2, np_out)
assert_almost_equal(mx_input1.grad.asnumpy(), x1_grad_expected, atol=1e-5, rtol=1e-3,
use_broadcast=False)
assert_almost_equal(mx_input2.grad.asnumpy(), x2_grad_expected, atol=1e-5, rtol=1e-3,
use_broadcast=False)
else:
get_mx_ret = TestBinaryElementWiseOp(op, scalar=scalar, reverse=reverse)
if hybridize:
get_mx_ret.hybridize()
if reverse:
mx_input = mx_input2
else:
mx_input = mx_input1
if grad_func is None:
mx_out = get_mx_ret(mx_input)
else:
with mx.autograd.record():
mx_out = get_mx_ret(mx_input)
mx_out.backward()
assert type(mx_out) == np.ndarray
if op in logic_ops:
assert np_out.dtype == mx_out.dtype
assert_almost_equal(mx_out.asnumpy(), np_out, atol=1e-6, rtol=1e-5, use_broadcast=False)
# check grad
if grad_func is not None:
x_grad_expected = grad_func(ograd, np_input1, np_input2, np_out)
assert_almost_equal(mx_input.grad.asnumpy(), x_grad_expected, atol=1e-5, rtol=1e-3,
use_broadcast=False)
