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paddlepaddle--paddle/test/legacy_test/test_rprop_op.py
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2026-07-13 12:40:42 +08:00

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# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import numpy as np
from op_test import (
OpTest,
convert_float_to_uint16,
get_device,
get_device_place,
is_custom_device,
)
from utils import dygraph_guard
import paddle
from paddle.base import core, in_pir_mode
paddle.enable_static()
def rprop_wrapper(
param,
grad,
prev,
learning_rate,
master_param=None,
learning_rate_range=np.array((1e-5, 50)).astype("float32"),
etas=np.array((0.5, 1.2)).astype("float32"),
multi_precision=False,
):
paddle._C_ops.rprop_(
param,
grad,
prev,
learning_rate,
master_param,
learning_rate_range,
etas,
multi_precision,
)
class TestRpropOp(OpTest):
def setUp(self):
self.op_type = "rprop"
self.python_api = rprop_wrapper
self.python_out_sig = ['Out']
self.conf()
params = np.random.random((self.h, self.w)).astype("float32")
grads = np.random.random((self.h, self.w)).astype("float32")
prevs = np.random.random((self.h, self.w)).astype("float32")
learning_rates = np.random.random((self.h, self.w)).astype("float32")
scale = 0.01
np.subtract(params, 0.5, out=params)
np.multiply(params, scale, out=params)
np.subtract(grads, 0.5, out=grads)
np.multiply(grads, scale, out=grads)
np.subtract(prevs, 0.5, out=prevs)
np.multiply(prevs, scale, out=prevs)
np.multiply(learning_rates, scale, out=learning_rates)
learning_rate_min = 0.1 * scale
learning_rate_max = 0.9 * scale
eta_negative = 0.5
eta_positive = 1.2
param_outs = params.copy()
prev_outs = prevs.copy()
learning_rate_outs = learning_rates.copy()
for i, param in enumerate(params):
grad = grads[i]
prev = prevs[i]
lr = learning_rate_outs[i]
param_out = param_outs[i]
prev_out = prev_outs[i]
sign = np.sign(np.multiply(grad, prev))
sign[np.greater(sign, 0)] = eta_positive
sign[np.less(sign, 0)] = eta_negative
sign[np.equal(sign, 0)] = 1
np.multiply(lr, sign, out=lr)
lr[np.less(lr, learning_rate_min)] = learning_rate_min
lr[np.greater(lr, learning_rate_max)] = learning_rate_max
grad = grad.copy()
grad[np.equal(sign, eta_negative)] = 0
learning_rate_outs[i] = lr
param_outs[i] = np.subtract(
param_out, np.multiply(np.sign(grad), lr)
)
prev_outs[i] = grad.copy()
self.inputs = {
"param": params,
"grad": grads,
"prev": prevs,
"learning_rate": learning_rates,
"learning_rate_range": np.array(
(learning_rate_min, learning_rate_max)
).astype("float32"),
"etas": np.array((0.5, 1.2)).astype("float32"),
}
self.outputs = {
"param_out": param_outs,
"prev_out": prev_outs,
"learning_rate_out": learning_rate_outs,
}
def conf(self):
self.h = 102
self.w = 105
def test_check_output(self):
self.check_output(check_pir=True)
class TestRpropOpCase8X(TestRpropOp):
def conf(self):
self.h = 10
self.w = 64
class TestRpropV2(unittest.TestCase):
def test_rprop_dygraph(self):
paddle.disable_static()
value = np.arange(26).reshape(1, 26).astype("float32")
a = paddle.to_tensor(value)
linear = paddle.nn.Linear(26, 5)
rprop = paddle.optimizer.Rprop(
learning_rate=0.01,
parameters=linear.parameters(),
)
out = linear(a)
out.backward()
rprop.step()
rprop.clear_gradients()
def test_raise_error(self):
self.assertRaises(
ValueError, paddle.optimizer.Rprop, learning_rate=None
)
self.assertRaises(
ValueError,
paddle.optimizer.Rprop,
learning_rate=1e-3,
learning_rate_range=np.array((1e-2, 1e-1)).astype("float32"),
)
self.assertRaises(
ValueError,
paddle.optimizer.Rprop,
learning_rate=1e-3,
etas=np.array((-0.1, 1.1)).astype("float32"),
)
def test_rprop_group_dygraph(self):
paddle.disable_static()
value = np.arange(26).reshape(1, 26).astype("float32")
a = paddle.to_tensor(value)
linear_1 = paddle.nn.Linear(26, 5)
linear_2 = paddle.nn.Linear(5, 3)
rprop = paddle.optimizer.Rprop(
learning_rate=0.01,
parameters=[
{'params': linear_1.parameters()},
{
'params': linear_2.parameters(),
'learning_rate': 0.1,
},
],
)
out = linear_1(a)
out = linear_2(out)
out.backward()
rprop.step()
rprop.clear_gradients()
class TestRpropMultiPrecision2_0(unittest.TestCase):
def dygraph_rprop_mp(self, mp):
paddle.disable_static()
paddle.seed(10)
paddle.set_device(get_device())
input = paddle.randn((2, 2))
model = paddle.nn.Linear(2, 2)
optimizer = paddle.optimizer.Rprop(
parameters=model.parameters(), multi_precision=mp
)
if mp:
model = paddle.amp.decorate(models=model, level='O2')
scaler = paddle.amp.GradScaler(init_loss_scaling=1024)
for idx in range(5):
if mp:
with paddle.amp.auto_cast(level='O2'):
output = model(input)
loss = paddle.mean(output)
scaled = scaler.scale(loss)
scaled.backward()
scaler.minimize(optimizer, scaled)
optimizer.clear_grad()
else:
output = model(input)
loss = paddle.mean(output)
optimizer.step()
optimizer.clear_grad()
return output, model.parameters()
def static_rprop_mp(self, mp):
paddle.enable_static()
paddle.seed(10)
np.random.seed(10)
exe = paddle.static.Executor(get_device_place())
train_program = paddle.static.Program()
startup_program = paddle.static.Program()
with paddle.static.program_guard(train_program, startup_program):
if in_pir_mode():
optimizer = paddle.optimizer.Rprop(multi_precision=mp)
linear = paddle.nn.Linear(2, 2)
if mp:
linear, optimizer = paddle.amp.decorate(
models=linear,
optimizers=optimizer,
level='O2',
dtype='float16',
)
else:
optimizer = paddle.optimizer.Rprop(multi_precision=mp)
linear = paddle.nn.Linear(2, 2)
if mp:
optimizer = paddle.static.amp.decorate(
optimizer,
init_loss_scaling=128.0,
use_dynamic_loss_scaling=True,
use_pure_fp16=True,
use_fp16_guard=False,
)
if mp:
data = paddle.static.data(
shape=[2, 2], name='X', dtype='float16'
)
else:
data = paddle.static.data(
shape=[2, 2], name='X', dtype='float32'
)
if in_pir_mode():
if mp:
with paddle.amp.auto_cast(
level='O2', dtype='float16', use_promote=True
):
hidden = linear(data)
else:
hidden = linear(data)
loss = paddle.mean(hidden)
optimizer.minimize(loss)
else:
hidden = paddle.static.nn.fc(x=data, size=10)
loss = paddle.mean(hidden)
optimizer.minimize(loss)
if mp:
optimizer.amp_init(
place=get_device_place(),
scope=paddle.static.global_scope(),
)
x = np.random.random(size=(2, 2)).astype('float16')
else:
x = np.random.random(size=(2, 2)).astype('float32')
if mp:
optimizer.amp_init(
place=get_device_place(), scope=paddle.static.global_scope()
)
x = np.random.random(size=(2, 2)).astype('float16')
else:
x = np.random.random(size=(2, 2)).astype('float32')
exe.run(startup_program)
out = []
for idx in range(5):
if in_pir_mode():
(loss_data,) = exe.run(
train_program, feed={"X": x}, fetch_list=[loss]
)
else:
(loss_data,) = exe.run(
train_program, feed={"X": x}, fetch_list=[loss.name]
)
out.append(loss_data)
return out
def test_main(self):
if not (paddle.is_compiled_with_cuda() or is_custom_device()):
return
"Test dygraph mode"
output1_dy, params1_dy = self.dygraph_rprop_mp(mp=True)
output2_dy, params2_dy = self.dygraph_rprop_mp(mp=False)
np.testing.assert_allclose(
output1_dy.astype('float32').numpy(),
output2_dy.astype('float32').numpy(),
rtol=1e-05,
atol=0.1,
)
for idx in range(len(params1_dy)):
np.testing.assert_allclose(
params1_dy[idx].astype('float32').numpy(),
params2_dy[idx].astype('float32').numpy(),
rtol=1e-05,
atol=0.1,
)
"Test static graph mode"
output1_st = self.static_rprop_mp(mp=True)
output2_st = self.static_rprop_mp(mp=False)
for idx in range(len(output1_st)):
np.testing.assert_allclose(
output1_st[idx].astype('float32'),
output2_st[idx].astype('float32'),
rtol=1e-05,
atol=0.1,
)
class TestRpropSimple(unittest.TestCase):
def setUp(self) -> None:
self.data = np.random.random(size=(2, 2)).astype('float32')
def run_static(self):
with paddle.pir_utils.IrGuard():
paddle.seed(10)
np.random.seed(10)
exe = paddle.static.Executor(get_device_place())
train_program = paddle.static.Program()
startup_program = paddle.static.Program()
with paddle.static.program_guard(train_program, startup_program):
input = paddle.static.data(
shape=[2, 2], name='input', dtype='float32'
)
model = paddle.nn.Linear(2, 2)
output = model(input)
loss = paddle.mean(output)
optimizer = paddle.optimizer.Rprop()
optimizer.minimize(loss)
exe.run(startup_program)
out = []
for _ in range(5):
(loss_data,) = exe.run(
train_program, feed={"input": self.data}, fetch_list=[loss]
)
out.append(loss_data)
return out
def run_dygraph(self):
with dygraph_guard():
paddle.seed(10)
np.random.seed(10)
out = []
model = paddle.nn.Linear(2, 2)
optimizer = paddle.optimizer.Rprop(parameters=model.parameters())
for _ in range(5):
output = model(paddle.to_tensor(self.data))
loss = paddle.mean(output)
out.append(loss.numpy())
loss.backward()
optimizer.step()
optimizer.clear_grad()
return out
def test_main(self):
if not (paddle.is_compiled_with_cuda() or is_custom_device()):
return
out1 = self.run_dygraph()
out2 = self.run_static()
np.testing.assert_allclose(out1, out2)
@unittest.skipIf(
not core.supports_bfloat16(), 'place does not support BF16 evaluation'
)
class TestRpropOpBF16(OpTest):
def setUp(self):
self.op_type = "rprop"
self.dtype = np.uint16
self.use_onednn = True
self.conf()
params = np.random.random((self.h, self.w)).astype("float32")
grads = np.random.random((self.h, self.w)).astype("float32")
prevs = np.random.random((self.h, self.w)).astype("float32")
learning_rates = np.random.random((self.h, self.w)).astype("float32")
scale = 0.01
np.subtract(params, 0.5, out=params)
np.multiply(params, scale, out=params)
np.subtract(grads, 0.5, out=grads)
np.multiply(grads, scale, out=grads)
np.subtract(prevs, 0.5, out=prevs)
np.multiply(prevs, scale, out=prevs)
np.multiply(learning_rates, scale, out=learning_rates)
learning_rate_min = 0.1 * scale
learning_rate_max = 0.9 * scale
eta_negative = 0.5
eta_positive = 1.2
param_outs = params.copy()
prev_outs = prevs.copy()
learning_rate_outs = learning_rates.copy()
for i, param in enumerate(params):
grad = grads[i]
prev = prevs[i]
lr = learning_rate_outs[i]
param_out = param_outs[i]
prev_out = prev_outs[i]
sign = np.sign(np.multiply(grad, prev))
sign[np.greater(sign, 0)] = eta_positive
sign[np.less(sign, 0)] = eta_negative
sign[np.equal(sign, 0)] = 1
np.multiply(lr, sign, out=lr)
lr[np.less(lr, learning_rate_min)] = learning_rate_min
lr[np.greater(lr, learning_rate_max)] = learning_rate_max
grad = grad.copy()
grad[np.equal(sign, eta_negative)] = 0
learning_rate_outs[i] = lr
param_outs[i] = np.subtract(
param_out, np.multiply(np.sign(grad), lr)
)
prev_outs[i] = grad.copy()
learning_rate_range = np.array(
(learning_rate_min, learning_rate_max)
).astype("float32")
etas = np.array((0.5, 1.2)).astype("float32")
params_bf16 = convert_float_to_uint16(params)
grads_bf16 = convert_float_to_uint16(grads)
prevs_bf16 = convert_float_to_uint16(prevs)
learning_rates_bf16 = convert_float_to_uint16(learning_rates)
learning_rate_range_bf16 = convert_float_to_uint16(learning_rate_range)
etas_bf16 = convert_float_to_uint16(etas)
param_outs_bf16 = convert_float_to_uint16(param_outs)
prev_outs_bf16 = convert_float_to_uint16(prev_outs)
learning_rate_outs_bf16 = convert_float_to_uint16(learning_rate_outs)
self.inputs = {
"param": params_bf16,
"grad": grads_bf16,
"prev": prevs_bf16,
"learning_rate": learning_rates_bf16,
"learning_rate_range": learning_rate_range_bf16,
"etas": etas_bf16,
}
self.outputs = {
"param_out": param_outs_bf16,
"prev_out": prev_outs_bf16,
"learning_rate_out": learning_rate_outs_bf16,
}
def conf(self):
self.h = 102
self.w = 105
def test_check_output(self):
self.check_output_with_place(core.CPUPlace(), check_dygraph=False)
if __name__ == "__main__":
unittest.main()