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

150 lines
5.0 KiB
Python

# 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 os
os.environ['CPU_NUM'] = '2'
import unittest
import numpy
from op_test import (
get_device_class,
get_places,
is_custom_device,
)
import paddle
from paddle import base
from paddle.base import core, in_pir_mode
from paddle.base.executor import Executor
paddle.enable_static()
base.core._set_eager_deletion_mode(0.0, 1.0, True)
class TestEagerDeletionWhileOpBase(unittest.TestCase):
def test_main(self):
for p in get_places():
with (
base.program_guard(base.Program(), base.Program()),
base.scope_guard(base.Scope()),
):
self.run_main(p)
def run_main(self, place):
self.place = place
if not (
core.is_compiled_with_cuda() or is_custom_device()
) and isinstance(self.place, get_device_class()):
return
device_cnt = 1
d0 = paddle.static.data("d0", shape=[-1, 10], dtype='float32')
d1 = paddle.static.data("d1", shape=[-1, 10], dtype='float32')
d2 = paddle.static.data("d2", shape=[-1, 10], dtype='float32')
i = paddle.zeros(shape=[1], dtype='int64')
i.stop_gradient = True
init = paddle.zeros(shape=[10], dtype='float32')
mem_array = paddle.tensor.array_write(x=init, i=i)
data_array = paddle.tensor.array_write(x=d0, i=i)
i = paddle.increment(i)
paddle.tensor.array_write(d1, i, array=data_array)
i = paddle.increment(i)
paddle.tensor.array_write(d2, i, array=data_array)
i = paddle.zeros(shape=[1], dtype='int64')
i.stop_gradient = True
array_len = paddle.tensor.fill_constant(
shape=[1], dtype='int64', value=1
)
array_len.stop_gradient = True
cond = paddle.less_than(x=i, y=array_len)
j = paddle.tensor.fill_constant(shape=[1], dtype='int64', value=1)
j.stop_gradient = True
array_len2 = paddle.tensor.fill_constant(
shape=[1], dtype='int64', value=3
)
array_len2.stop_gradient = True
cond2 = paddle.less_than(x=j, y=array_len2)
while_op = paddle.static.nn.control_flow.While(cond=cond)
while_op2 = paddle.static.nn.control_flow.While(cond=cond2)
with while_op.block():
d = paddle.tensor.array_read(array=data_array, i=i)
prev = paddle.tensor.array_read(array=mem_array, i=i)
d = paddle.reshape(d, shape=[10])
prev = paddle.reshape(prev, shape=[10])
result = paddle.add_n([d, prev])
i = paddle.increment(x=i)
paddle.tensor.array_write(result, i=i, array=mem_array)
paddle.assign(paddle.less_than(x=i, y=array_len), cond)
with while_op2.block():
d2 = paddle.tensor.array_read(array=data_array, i=j)
prev2 = paddle.tensor.array_read(array=mem_array, i=j)
d2 = paddle.reshape(d2, shape=[10])
prev2 = paddle.reshape(prev2, shape=[10])
result2 = paddle.add_n([d2, prev2])
j = paddle.increment(x=j)
paddle.tensor.array_write(result2, i=j, array=mem_array)
paddle.assign(paddle.less_than(x=j, y=array_len2), cond2)
sum_result = paddle.tensor.array_read(array=mem_array, i=j)
sum_result.persistable = True
tmp = paddle.unsqueeze(sum_result, axis=[0])
tmp = paddle.expand(tmp, [10, -1])
loss = paddle.mean(sum_result)
optim = paddle.optimizer.Adam(learning_rate=1e-3)
optim.minimize(loss)
if not in_pir_mode():
gc_vars = core._get_eager_deletion_vars(
base.default_main_program().desc, [loss.name]
)
self.assertEqual(len(gc_vars), 3)
exe = Executor(self.place)
exe.run(paddle.static.default_startup_program())
prog = paddle.static.default_main_program()
for _ in range(5):
d = []
for i in range(3):
tmp = numpy.random.random(size=[10]).astype('float32')
d.append(numpy.array([tmp] * device_cnt))
outs = exe.run(
program=prog,
feed={'d0': d[0], 'd1': d[1], 'd2': d[2]},
fetch_list=[sum_result],
)
self.assertAlmostEqual(numpy.sum(d), numpy.sum(outs[0]), delta=0.01)
if __name__ == '__main__':
unittest.main()