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2026-07-13 12:40:42 +08:00

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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 unittest
import gradient_checker
import numpy as np
from decorator_helper import prog_scope
from op_test import (
OpTest,
convert_float_to_uint16,
get_device_place,
get_places,
is_custom_device,
paddle_static_guard,
)
import paddle
from paddle import base
from paddle.base import core
from paddle.tensor.manipulation import tensor_array_to_tensor
paddle.enable_static()
def slice_wrapper(
Input,
axes=[],
StartsTensor=None,
EndsTensor=None,
infer_flags=[],
decrease_axis=[],
):
return paddle._C_ops.slice(
Input, axes, StartsTensor, EndsTensor, infer_flags, decrease_axis
)
# Situation 1: starts(list, no tensor), ends(list, no tensor)
# 1.1 without attr(decrease)
class TestSliceOp(OpTest):
def setUp(self):
self.op_type = "slice"
self.prim_op_type = "prim"
self.python_api = paddle.slice
self.public_python_api = paddle.slice
self.config()
self.inputs = {'Input': self.input}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
'starts': self.starts,
'ends': self.ends,
'infer_flags': self.infer_flags,
}
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [1, 0, 2]
self.ends = [3, 3, 4]
self.axes = [0, 1, 2]
self.infer_flags = [1, 1, 1]
self.out = self.input[1:3, 0:3, 2:4, :]
def test_check_output(self):
self.check_output(check_pir=True)
def test_check_grad_normal(self):
self.check_grad(
['Input'],
'Out',
max_relative_error=0.006,
check_prim=True,
check_pir=True,
check_prim_pir=True,
)
class TestCase1(TestSliceOp):
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [-3, 0, 2]
self.ends = [3, 100, -1]
self.axes = [0, 1, 2]
self.infer_flags = [1, 1, 1]
self.out = self.input[-3:3, 0:100, 2:-1, :]
class TestCase2(TestSliceOp):
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [-3, 0, 2]
self.ends = [3, 100, -1]
self.axes = [0, 1, 3]
self.infer_flags = [1, 1, 1]
self.out = self.input[-3:3, 0:100, :, 2:-1]
class TestCase3(TestSliceOp):
def config(self):
self.input = np.random.random([4, 4, 5, 6]).astype("float64")
self.starts = [-3]
self.ends = [3]
self.axes = [0]
self.infer_flags = [1, 1, 1]
self.out = self.input[-3:3, :, :, :]
class TestCase4(TestSliceOp):
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [0]
self.ends = [4]
self.axes = [1]
self.infer_flags = [1, 1, 1]
self.out = self.input[:, :, :, :]
class TestCase5(TestSliceOp):
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [0]
self.ends = [2]
self.axes = [1]
self.infer_flags = [1, 1, 1]
self.out = self.input[:, 0:2, :, :]
class TestCase6(TestSliceOp):
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [2]
self.ends = [4]
self.axes = [1]
self.infer_flags = [1, 1, 1]
self.out = self.input[:, 2:4, :, :]
class TestSliceZerosShapeTensor(OpTest):
def setUp(self):
self.op_type = "slice"
self.prim_op_type = "prim"
self.python_api = paddle.slice
self.public_python_api = paddle.slice
self.config()
self.inputs = {'Input': self.input}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
'starts': self.starts,
'ends': self.ends,
'infer_flags': self.infer_flags,
'use_onednn': True,
}
def config(self):
self.input = np.random.random([0, 0, 0]).astype("float32")
self.starts = [1]
self.ends = [2]
self.axes = [0]
self.infer_flags = []
self.out = self.input[1:2]
def test_check_output(self):
self.check_output_with_place(paddle.CPUPlace(), check_pir=True)
class TestCase_ZeroSize(TestSliceOp):
def config(self):
self.input = np.random.random([0, 0, 5, 6]).astype("float64")
self.starts = [-3, 0, 2]
self.ends = [3, 100, -1]
self.axes = [0, 1, 3]
self.infer_flags = [1, 1, 1]
self.out = self.input[-3:3, 0:100, :, 2:-1]
# 1.2 with attr(decrease)
class TestSliceOp_decs_dim(OpTest):
def setUp(self):
self.enable_cinn = True
self.op_type = "slice"
self.prim_op_type = "prim"
self.python_api = paddle.slice
self.public_python_api = paddle.slice
self.config()
self.inputs = {'Input': self.input}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
'starts': self.starts,
'ends': self.ends,
'infer_flags': self.infer_flags,
'decrease_axis': self.decrease_axis,
}
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [1, 0, 2]
self.ends = [2, 3, 4]
self.axes = [0, 1, 2]
self.decrease_axis = []
self.infer_flags = [1, 1, 1]
self.out = self.input[1:2, 0:3, 2:4, :]
def test_check_output(self):
self.check_output(check_pir=True)
def test_check_grad_normal(self):
self.check_grad(
['Input'],
'Out',
max_relative_error=0.006,
check_prim=True,
check_pir=True,
check_prim_pir=True,
)
# without attr(decrease)
class TestSliceOp_starts_ListTensor(OpTest):
def setUp(self):
self.op_type = "slice"
self.python_api = slice_wrapper
self.config()
starts_tensor = []
for index, ele in enumerate(self.starts):
starts_tensor.append(
("x" + str(index), np.ones(1).astype('int64') * ele)
)
self.inputs = {'Input': self.input, 'StartsTensorList': starts_tensor}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
'starts': self.starts_infer,
'ends': self.ends,
'infer_flags': self.infer_flags,
}
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [1, 0, 2]
self.ends = [3, 3, 4]
self.axes = [0, 1, 2]
self.infer_flags = [-1, 1, -1]
self.out = self.input[1:3, 0:3, 2:4, :]
self.starts_infer = [-1, 0, -1]
def test_check_output(self):
self.check_output(check_pir=True, check_symbol_infer=False)
def test_check_grad_normal(self):
self.check_grad(
['Input'], 'Out', max_relative_error=0.006, check_pir=True
)
# Situation 2: starts(list, have tensor), ends(list, no tensor)
# with attr(decrease)
class TestSliceOp_decs_dim_starts_ListTensor(OpTest):
def setUp(self):
self.op_type = "slice"
self.python_api = slice_wrapper
self.config()
starts_tensor = []
for index, ele in enumerate(self.starts):
starts_tensor.append(
("x" + str(index), np.ones(1).astype('int32') * ele)
)
self.inputs = {'Input': self.input, 'StartsTensorList': starts_tensor}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
'starts': self.starts_infer,
'ends': self.ends,
'infer_flags': self.infer_flags,
'decrease_axis': self.decrease_axis,
}
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [1, 0, 2]
self.ends = [2, 3, 4]
self.axes = [0, 1, 2]
self.decrease_axis = [0]
self.infer_flags = [1, -1, 1]
self.out = self.input[1, 0:3, 2:4, :]
self.starts_infer = [1, -1, 2]
def test_check_output(self):
self.check_output(
check_dygraph=True, check_pir=True, check_symbol_infer=False
)
def test_check_grad_normal(self):
self.check_grad(
['Input'], 'Out', max_relative_error=0.006, check_pir=True
)
class TestSliceOp_decs_dim_5_starts_ListTensor(
TestSliceOp_decs_dim_starts_ListTensor
):
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [-1]
self.ends = [1000000]
self.axes = [3]
self.decrease_axis = [3]
self.infer_flags = [-1]
self.out = self.input[:, :, :, -1]
self.starts_infer = [-1]
# Situation 3: starts(tensor), ends(list, no tensor)
# with attr(decrease)
class TestSliceOp_decs_dim_starts_OneTensor(OpTest):
def setUp(self):
self.op_type = "slice"
self.python_api = slice_wrapper
self.config()
self.inputs = {
'Input': self.input,
"StartsTensor": np.array(self.starts, dtype="int32"),
}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
# 'starts': self.starts,
'ends': self.ends,
'infer_flags': self.infer_flags,
'decrease_axis': self.decrease_axis,
}
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [1, 0, 2]
self.ends = [2, 3, 4]
self.axes = [0, 1, 2]
self.decrease_axis = [0]
self.infer_flags = [-1, -1, -1]
self.out = self.input[1, 0:3, 2:4, :]
def test_check_output(self):
self.check_output(check_pir=True, check_symbol_infer=False)
def test_check_grad_normal(self):
self.check_grad(
['Input'], 'Out', max_relative_error=0.006, check_pir=True
)
# Situation 4: starts(tensor), ends(tensor)
# without attr(decrease)
class TestSliceOp_starts_OneTensor_ends_OneTensor(OpTest):
def setUp(self):
self.op_type = "slice"
self.python_api = slice_wrapper
self.config()
self.inputs = {
'Input': self.input,
"StartsTensor": np.array(self.starts, dtype="int64"),
"EndsTensor": np.array(self.ends, dtype="int32"),
}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
# 'starts': self.starts,
# 'ends': self.ends_infer,
'infer_flags': self.infer_flags,
}
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [1, 0, 2]
self.ends = [3, 3, 4]
self.axes = [0, 1, 2]
self.infer_flags = [-1, -1, -1]
self.out = self.input[1:3, 0:3, 2:4, :]
def test_check_output(self):
self.check_output(check_pir=True, check_symbol_infer=False)
def test_check_grad_normal(self):
self.check_grad(
['Input'], 'Out', max_relative_error=0.006, check_pir=True
)
# Situation 5: starts(tensor), ends(tensor)
# with attr(decrease)
class TestSliceOp_decs_dim_starts_and_ends_OneTensor(OpTest):
def setUp(self):
self.op_type = "slice"
self.python_api = slice_wrapper
self.config()
self.inputs = {
'Input': self.input,
"StartsTensor": np.array(self.starts, dtype="int32"),
"EndsTensor": np.array(self.ends, dtype="int32"),
}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
# 'starts': self.starts,
# 'ends': self.ends,
'infer_flags': self.infer_flags,
'decrease_axis': self.decrease_axis,
}
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [1, 0, 2]
self.ends = [2, 1, 4]
self.axes = [0, 1, 2]
self.decrease_axis = [0, 1]
self.infer_flags = [-1, -1, -1]
self.out = self.input[1, 0, 2:4, :]
def test_check_output(self):
self.check_output(check_pir=True, check_symbol_infer=False)
def test_check_grad_normal(self):
self.check_grad(
['Input'], 'Out', max_relative_error=0.006, check_pir=True
)
# Situation 6: starts(tensor), ends(list, have tensor)
# without attr(decrease)
class TestSliceOp_starts_OneTensor_ends_ListTensor(OpTest):
def setUp(self):
self.op_type = "slice"
self.python_api = slice_wrapper
self.config()
ends_tensor = []
for index, ele in enumerate(self.ends):
ends_tensor.append(
("y" + str(index), np.ones(1).astype('int32') * ele)
)
self.inputs = {
'Input': self.input,
"StartsTensor": np.array(self.starts, dtype="int32"),
'EndsTensorList': ends_tensor,
}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
# 'starts': self.starts,
'ends': self.ends_infer,
'infer_flags': self.infer_flags,
}
def config(self):
self.input = np.random.random([3, 4, 5, 6]).astype("float64")
self.starts = [1, 0, 2]
self.ends = [3, 3, 4]
self.axes = [0, 1, 2]
self.infer_flags = [-1, -1, -1]
self.out = self.input[1:3, 0:3, 2:4, :]
self.ends_infer = [-1, 3, 4]
def test_check_output(self):
self.check_output(check_pir=True, check_symbol_infer=False)
def test_check_grad_normal(self):
self.check_grad(
['Input'], 'Out', max_relative_error=0.006, check_pir=True
)
class TestSliceOp_ZeroDim(OpTest):
def setUp(self):
self.op_type = "slice"
self.python_api = slice_wrapper
self.config()
starts_tensor = []
ends_tensor = []
for index, ele in enumerate(self.starts):
starts_tensor.append(
("x" + str(index), np.array(1).astype('int32'))
)
for index, ele in enumerate(self.ends):
ends_tensor.append(("y" + str(index), np.array(3).astype('int32')))
self.inputs = {
'Input': self.input,
"StartsTensorList": starts_tensor,
'EndsTensorList': ends_tensor,
}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
'infer_flags': self.infer_flags,
}
def config(self):
self.input = np.random.random([20, 3, 3]).astype("float64")
self.starts = [1, 1]
self.ends = [3, 3]
self.axes = [1, 2]
self.infer_flags = [-1, -1]
self.out = self.input[0:20, 1:3, 1:3]
def test_check_output(self):
self.check_output(check_pir=True, check_symbol_infer=False)
def test_check_grad_normal(self):
self.check_grad(['Input'], 'Out', check_pir=True)
# Test CUDA float16
@unittest.skipIf(
not (core.is_compiled_with_cuda() or is_custom_device()),
"core is not compiled with CUDA",
)
class TestFP16(OpTest):
def setUp(self):
self.op_type = "slice"
self.prim_op_type = "prim"
self.python_api = paddle.slice
self.public_python_api = paddle.slice
self.config()
self.inputs = {'Input': self.input}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
'starts': self.starts,
'ends': self.ends,
'infer_flags': self.infer_flags,
}
def config(self):
self.dtype = "float16"
self.input = np.random.random([3, 4, 5, 6]).astype(self.dtype)
self.starts = [-3, 0, 2]
self.ends = [3, 100, -1]
self.axes = [0, 1, 3]
self.out = self.input[-3:3, 0:100, :, 2:-1]
self.infer_flags = [1, 1, 1]
def test_check_output(self):
place = get_device_place()
if core.is_float16_supported(place):
self.check_output_with_place(
place, check_prim=True, check_pir=True, check_prim_pir=True
)
def test_check_grad_normal(self):
place = get_device_place()
print("core:", core.is_float16_supported(place))
if core.is_float16_supported(place):
self.check_grad_with_place(
place,
['Input'],
'Out',
check_prim=True,
check_pir=True,
check_prim_pir=True,
)
@unittest.skipIf(
not (core.is_compiled_with_cuda() or is_custom_device()),
"core is not compiled with CUDA",
)
class TestFP16_2(OpTest):
def setUp(self):
self.op_type = "slice"
self.prim_op_type = "prim"
self.python_api = paddle.slice
self.public_python_api = paddle.slice
self.config()
self.inputs = {'Input': self.input}
self.outputs = {'Out': self.out}
self.attrs = {
'axes': self.axes,
'starts': self.starts,
'ends': self.ends,
'infer_flags': self.infer_flags,
}
def config(self):
self.dtype = "float16"
self.input = np.random.random([3, 4, 10]).astype(self.dtype)
self.starts = [0]
self.ends = [1]
self.axes = [1]
self.out = self.input[:, 0:1, :]
self.infer_flags = [1]
def test_check_output(self):
place = get_device_place()
if core.is_float16_supported(place):
self.check_output_with_place(
place, check_prim=True, check_pir=True, check_prim_pir=True
)
def test_check_grad_normal(self):
place = get_device_place()
if core.is_float16_supported(place):
self.check_grad_with_place(
place,
['Input'],
'Out',
numeric_grad_delta=0.5,
check_prim=True,
check_pir=True,
check_prim_pir=True,
)
class TestBF16(OpTest):
def setUp(self):
self.op_type = "slice"
self.prim_op_type = "prim"
self.python_api = paddle.slice
self.public_python_api = paddle.slice
self.config()
self.inputs = {'Input': convert_float_to_uint16(self.input)}
self.outputs = {'Out': convert_float_to_uint16(self.out)}
self.attrs = {
'axes': self.axes,
'starts': self.starts,
'ends': self.ends,
'infer_flags': self.infer_flags,
}
def config(self):
self.dtype = np.uint16
self.input = np.random.random([3, 4, 5, 6]).astype(np.float32)
self.starts = [-3, 0, 2]
self.ends = [3, 100, -1]
self.axes = [0, 1, 3]
self.out = self.input[-3:3, 0:100, :, 2:-1]
self.infer_flags = [1, 1, 1]
def test_check_output(self):
self.check_output(check_pir=True)
def test_check_grad_normal(self):
self.check_grad(
['Input'],
'Out',
check_prim=True,
check_pir=True,
check_prim_pir=True,
)
# Test python API
class TestSliceAPI(unittest.TestCase):
def test_1(self):
with paddle_static_guard():
input = np.random.random([3, 4, 5, 6]).astype("float64")
minus_1 = paddle.tensor.fill_constant([], "int32", -1)
minus_3 = paddle.tensor.fill_constant([], "int64", -3)
starts = paddle.static.data(
name='starts', shape=[1, 3], dtype="float32"
)
if not paddle.framework.use_pir_api():
starts.desc.set_need_check_feed(False)
ends = paddle.static.data(name='ends', shape=[3], dtype="float32")
if not paddle.framework.use_pir_api():
ends.desc.set_need_check_feed(False)
x = paddle.static.data(
name="x",
shape=[3, 4, 5, 6],
dtype="float64",
)
# value_int64 is greater than 2147483647 which is the max of int32
value_int64 = paddle.tensor.fill_constant([1], "int64", 2147483648)
out_1 = paddle.slice(
x,
axes=[0, 1, 2],
starts=[-3, 0, 2],
ends=[value_int64, 100, -1],
)
out_2 = paddle.slice(
x, axes=[0, 1, 3], starts=[minus_3, 0, 2], ends=[3, 100, -1]
)
out_3 = paddle.slice(
x,
axes=[0, 1, 3],
starts=[minus_3, 0, 2],
ends=[3, 100, minus_1],
)
out_4 = paddle.slice(x, axes=[0, 1, 2], starts=starts, ends=ends)
out_5 = x[-3:3, 0:100, 2:-1]
out_6 = x[minus_3:3, 0:100, :, 2:-1]
out_7 = x[minus_1, 0:100, :, 2:minus_1]
exe = base.Executor(place=base.CPUPlace())
res_1, res_2, res_3, res_4, res_5, res_6, res_7 = exe.run(
paddle.static.default_main_program(),
feed={
"x": input,
'starts': np.array([-3, 0, 2]).astype("int32"),
'ends': np.array([3, 100, -1]).astype("int32"),
},
fetch_list=[
out_1,
out_2,
out_3,
out_4,
out_5,
out_6,
out_7,
],
)
np.testing.assert_array_equal(res_1, input[-3:3, 0:100, 2:-1, :])
np.testing.assert_array_equal(res_2, input[-3:3, 0:100, :, 2:-1])
np.testing.assert_array_equal(res_3, input[-3:3, 0:100, :, 2:-1])
np.testing.assert_array_equal(res_4, input[-3:3, 0:100, 2:-1, :])
np.testing.assert_array_equal(res_5, input[-3:3, 0:100, 2:-1, :])
np.testing.assert_array_equal(res_6, input[-3:3, 0:100, :, 2:-1])
np.testing.assert_array_equal(res_7, input[-1, 0:100, :, 2:-1])
def test_pir(self):
with (
paddle.pir_utils.IrGuard(),
paddle.static.program_guard(paddle.static.Program()),
):
input = np.random.random([3, 4, 5, 6]).astype("float64")
minus_1 = paddle.tensor.fill_constant([], "int32", -1)
minus_3 = paddle.tensor.fill_constant([], "int64", -3)
starts = paddle.static.data(name='starts', shape=[3], dtype="int32")
ends = paddle.static.data(name='ends', shape=[3], dtype="int32")
x = paddle.static.data(
name="x",
shape=[3, 4, 5, 6],
dtype="float64",
)
# value_int64 is greater than 2147483647 which is the max of int32
value_int64 = paddle.tensor.fill_constant([1], "int64", 2147483648)
out_1 = paddle.slice(
x,
axes=[0, 1, 2],
starts=[-3, 0, 2],
ends=[value_int64, 100, -1],
)
out_2 = paddle.slice(
x, axes=[0, 1, 3], starts=[minus_3, 0, 2], ends=[3, 100, -1]
)
out_3 = paddle.slice(
x,
axes=[0, 1, 3],
starts=[minus_3, 0, 2],
ends=[3, 100, minus_1],
)
out_4 = paddle.slice(x, axes=[0, 1, 2], starts=starts, ends=ends)
out_5 = x[-3:3, 0:100, 2:-1]
out_6 = x[minus_3:3, 0:100, :, 2:-1]
# open it after supporting control flow
# out_7 = x[minus_1, 0:100, :, 2:minus_1]
exe = base.Executor(place=base.CPUPlace())
res_1, res_2, res_3, res_4, res_5, res_6 = exe.run(
paddle.static.default_main_program(),
feed={
"x": input,
'starts': np.array([-3, 0, 2]).astype("int32"),
'ends': np.array([3, 100, -1]).astype("int32"),
},
fetch_list=[out_1, out_2, out_3, out_4, out_5, out_6],
)
np.testing.assert_array_equal(res_1, input[-3:3, 0:100, 2:-1, :])
np.testing.assert_array_equal(res_2, input[-3:3, 0:100, :, 2:-1])
np.testing.assert_array_equal(res_3, input[-3:3, 0:100, :, 2:-1])
np.testing.assert_array_equal(res_4, input[-3:3, 0:100, 2:-1, :])
np.testing.assert_array_equal(res_5, input[-3:3, 0:100, 2:-1, :])
np.testing.assert_array_equal(res_6, input[-3:3, 0:100, :, 2:-1])
# np.testing.assert_array_equal(res_7, input[-1, 0:100, :, 2:-1])
# Test negative axis
def test_negative_axis_dygraph(self):
with paddle.base.dygraph.guard():
input = np.random.random([3, 4, 5, 6]).astype("float64")
res = paddle.slice(
paddle.to_tensor(input), axes=[-2], starts=[2], ends=[3]
)
np.testing.assert_array_equal(res, input[:, :, 2:3, :])
def test_negative_axis_static(self):
with (
paddle_static_guard(),
paddle.static.program_guard(paddle.static.Program()),
):
input = np.random.random([3, 4, 5, 6]).astype("float64")
x = paddle.static.data(
name="x",
shape=[3, 4, 5, 6],
dtype="float64",
)
out = paddle.slice(
x,
axes=[-2],
starts=[2],
ends=[3],
)
exe = base.Executor(place=base.CPUPlace())
res = exe.run(
feed={
"x": input,
},
fetch_list=[out],
)[0]
np.testing.assert_array_equal(res, input[:, :, 2:3, :])
def test_negative_axis_pir(self):
with (
paddle.pir_utils.IrGuard(),
paddle.static.program_guard(paddle.static.Program()),
):
input = np.random.random([3, 4, 5, 6]).astype("float64")
x = paddle.static.data(
name="x",
shape=[3, 4, 5, 6],
dtype="float64",
)
out = paddle.slice(
x,
axes=[-2],
starts=[2],
ends=[3],
)
exe = base.Executor(place=base.CPUPlace())
res = exe.run(
paddle.static.default_main_program(),
feed={
"x": input,
},
fetch_list=[out],
)[0]
np.testing.assert_array_equal(res, input[:, :, 2:3, :])
class TestSliceApiWithTensor(unittest.TestCase):
def test_starts_ends_is_tensor(self):
with paddle.base.dygraph.guard():
a = paddle.rand(shape=[4, 5, 6], dtype='float32')
axes = [0, 1, 2]
starts = [-3, 0, 2]
ends = [3, 2, 4]
a_1 = paddle.slice(
a,
axes=axes,
starts=paddle.to_tensor(starts, dtype='int32'),
ends=paddle.to_tensor(ends, dtype='int32'),
)
a_2 = paddle.slice(a, axes=axes, starts=starts, ends=ends)
np.testing.assert_array_equal(a_1.numpy(), a_2.numpy())
def test_bool_tensor(self):
with paddle.base.dygraph.guard():
array = (np.arange(60).reshape([3, 4, 5]) % 3).astype('bool')
tt = paddle.to_tensor(array)
tt.stop_gradient = False
starts = [0, 1, 2]
ends = [3, 5, 4]
axes = [0, 1, 2]
y_paddle = paddle.slice(tt, axes, starts, ends)
y_np = tt[0:3, 1:5, 2:4]
self.assertTrue(paddle.bool == y_paddle.dtype)
np.testing.assert_array_equal(y_paddle.numpy(), y_np)
class TestSliceApiEager(unittest.TestCase):
def test_slice_api(self):
with paddle.base.dygraph.guard():
a = paddle.rand(shape=[4, 5, 6], dtype='float32')
a.stop_gradient = False
axes = [0, 1, 2]
starts = [-3, 0, 2]
ends = [3, 2, 4]
a_1 = paddle.slice(a, axes=axes, starts=starts, ends=ends)
a_2 = paddle.slice(
a,
axes=axes,
starts=paddle.to_tensor(starts),
ends=paddle.to_tensor(ends),
)
np.testing.assert_array_equal(a_1.numpy(), a_2.numpy())
a_1.backward()
grad_truth = paddle.zeros_like(a)
grad_truth[-3:3, 0:2, 2:4] = 1
np.testing.assert_array_equal(grad_truth, a.gradient())
np.testing.assert_allclose(
a_1.numpy(), a[-3:3, 0:2, 2:4], rtol=1e-05
)
class TestSliceApiWithDenseTensorArray(unittest.TestCase):
def setUp(self):
self.shape = (3, 4)
self.data = np.random.random(size=self.shape).astype('float32')
self.idx = 0
self.start = 0
self.end = 2
self.axis = 1
self.place = get_device_place()
self.exe = base.Executor(self.place)
def set_program_and_run(self, main_program, case_num):
with (
paddle.pir_utils.OldIrGuard(),
paddle_static_guard(),
paddle.static.program_guard(main_program),
):
x = [
paddle.static.data(
name='x0', shape=self.shape, dtype="float32"
),
paddle.static.data(
name='x1', shape=self.shape, dtype="float32"
),
paddle.static.data(
name='x2', shape=self.shape, dtype="float32"
),
]
for each_x in x:
each_x.stop_gradient = False
arr = paddle.tensor.create_array(dtype="float32")
for i in range(3):
idx = paddle.tensor.array_length(arr)
arr = paddle.tensor.array_write(x=x[i], i=idx, array=arr)
if case_num == 1:
self.sliced_arr = output = arr[0]
elif case_num == 2:
end = (
paddle.tensor.array_length(arr) - 1
) # dtype of end is int64
self.sliced_arr = slice_arr = arr[self.start : end]
output, _ = tensor_array_to_tensor(
slice_arr, axis=self.axis, use_stack=True
)
elif case_num == 3:
value_int64 = paddle.tensor.fill_constant(
[1], "int64", 2147483648
)
self.sliced_arr = slice_arr = arr[self.start : value_int64]
output, _ = tensor_array_to_tensor(
slice_arr, axis=self.axis, use_stack=True
)
loss = paddle.sum(output)
base.backward.append_backward(loss)
g_vars = list(
map(
main_program.global_block().var,
[each_x.name + "@GRAD" for each_x in x],
)
)
self.out, self.g_x0, self.g_x1, self.g_x2 = self.exe.run(
main_program,
feed={
'x0': self.data,
'x1': self.data,
'x2': self.data,
},
fetch_list=[output, *g_vars],
)
def test_case_1(self):
main_program = paddle.static.Program()
self.set_program_and_run(main_program, 1)
self.assertTrue(
self.sliced_arr.type == core.VarDesc.VarType.DENSE_TENSOR
)
self.assertEqual(self.sliced_arr.shape, self.shape)
np.testing.assert_array_equal(self.out, self.data)
np.testing.assert_array_equal(self.g_x0, np.ones_like(self.data))
np.testing.assert_array_equal(self.g_x1, np.zeros_like(self.data))
np.testing.assert_array_equal(self.g_x2, np.zeros_like(self.data))
def test_case_2(self):
with paddle_static_guard():
main_program = paddle.static.Program()
self.set_program_and_run(main_program, 2)
self.assertTrue(
self.sliced_arr.type
== core.VarDesc.VarType.DENSE_TENSOR_ARRAY
)
self.assertEqual(self.sliced_arr.shape, self.shape)
np.testing.assert_array_equal(
self.out, np.stack([self.data, self.data], axis=self.axis)
)
np.testing.assert_array_equal(
self.g_x0, np.ones_like(self.data)
)
np.testing.assert_array_equal(
self.g_x1, np.ones_like(self.data)
)
np.testing.assert_array_equal(
self.g_x2, np.zeros_like(self.data)
)
def test_case_3(self):
with paddle_static_guard():
main_program = paddle.static.Program()
self.set_program_and_run(main_program, 3)
self.assertTrue(
self.sliced_arr.type
== core.VarDesc.VarType.DENSE_TENSOR_ARRAY
)
self.assertEqual(self.sliced_arr.shape, self.shape)
np.testing.assert_array_equal(
self.out,
np.stack([self.data, self.data, self.data], axis=self.axis),
)
np.testing.assert_array_equal(
self.g_x0, np.ones_like(self.data)
)
np.testing.assert_array_equal(
self.g_x1, np.ones_like(self.data)
)
np.testing.assert_array_equal(
self.g_x2, np.ones_like(self.data)
)
class TestImperativeVarBaseGetItem(unittest.TestCase):
def test_getitem_with_long(self):
with base.dygraph.guard():
data = np.random.random((2, 80, 16128)).astype('float32')
var = paddle.to_tensor(data)
sliced = var[:, 10:, : var.shape[1]] # var.shape[1] is 80L here
self.assertEqual(sliced.shape, [2, 70, 80])
sliced = var[:, var.shape[0] :, var.shape[0] : var.shape[1]]
self.assertEqual(sliced.shape, [2, 78, 78])
def test_getitem_with_float(self):
def test_float_in_slice_item():
with base.dygraph.guard():
data = np.random.random((2, 80, 16128)).astype('float32')
var = paddle.to_tensor(data)
sliced = var[:, 1.1:, : var.shape[1]]
self.assertRaisesRegex(
ValueError,
r"\(InvalidArgument\) Currently, slice indices only allows None",
test_float_in_slice_item,
)
def test_float_in_index():
with base.dygraph.guard():
data = np.random.random((2, 80, 16128)).astype('float32')
var = paddle.to_tensor(data)
sliced = var[1.1]
self.assertRaisesRegex(
ValueError,
r"\(InvalidArgument\) Currently, Tensor.__indices__\(\) only allows indexing by Boolean",
test_float_in_index,
)
class TestInferShape(unittest.TestCase):
def test_pir(self):
with paddle.pir_utils.IrGuard():
x = paddle.static.data('x', shape=[3, -1, 5])
out0 = paddle.slice(x, axes=[1], starts=[0], ends=[3])
self.assertEqual(out0.shape, [3, -1, 5])
def test_axis_less_than_zero(self):
# Using paddle.disable_static will make other unittests fail.
with base.dygraph.guard():
x_arr = np.arange(0, 24, dtype=np.float32).reshape([2, 3, 4])
x = paddle.to_tensor(x_arr)
pp_slice = paddle.slice(
x,
[
100,
],
[0],
[1],
)
np_slice = x_arr[:, :, 0:1]
np.testing.assert_array_equal(pp_slice, np_slice)
pp_slice = paddle.slice(x, (-100,), [0], [1])
np_slice = x_arr[0:1]
np.testing.assert_array_equal(pp_slice, np_slice)
x_arr = np.array([], dtype=np.float32)
x = paddle.to_tensor(np.reshape(x_arr, (0, 0, 0)))
starts = paddle.to_tensor(
np.reshape(np.array([], dtype=np.int32), (0,))
)
ends = paddle.to_tensor(
np.reshape(np.array([], dtype=np.int32), (0,))
)
with self.assertRaises(ValueError):
paddle.slice(x, [-1000000], starts, ends)
with self.assertRaises(ValueError):
paddle.slice(x, [1000000], starts, ends)
with self.assertRaises(ValueError):
paddle.slice(x, [], starts, ends)
with self.assertRaises(ValueError):
paddle.slice(x, 0, starts, ends)
class TestSliceOpError(unittest.TestCase):
def test_mismatch_shape(self):
with base.dygraph.guard():
with self.assertRaises(ValueError):
array = np.array([], dtype=np.float32)
x = paddle.to_tensor(np.reshape(array, [0]), dtype='float32')
paddle.slice(x, axes=[0], starts=[], ends=[])
with self.assertRaises(ValueError):
array = np.array([], dtype=np.float32)
x = paddle.to_tensor(np.reshape(array, [0]), dtype='float32')
paddle.slice(x, axes=[0], starts=[0], ends=[])
# if shape match, pass
array = np.array([], dtype=np.float32)
x = paddle.to_tensor(np.reshape(array, [0]), dtype='float32')
out = paddle.slice(x, axes=[0], starts=[0], ends=[0])
self.assertEqual(out.numel(), 0)
# self.assertEqual(out.shape)
@unittest.skipIf(
not (core.is_compiled_with_cuda()),
"core is not compiled with CUDA",
)
class TestImperativeCUDAPinnedInput(unittest.TestCase):
def test_input_cuda_pinned_var(self):
with base.dygraph.guard():
data = np.random.random((2, 80, 16128)).astype('float32')
var = core.eager.Tensor(
value=data,
name='',
persistable=False,
place=base.CUDAPinnedPlace(),
zero_copy=False,
)
sliced = var[:, 10:, : var.shape[1]]
self.assertEqual(sliced.shape, [2, 70, 80])
class TestSliceDoubleGradCheck(unittest.TestCase):
def slice_wrapper(self, x):
return paddle.slice(
x[0], axes=[0, 1, 2], starts=[-3, 0, 2], ends=[3, 2, 4]
)
@prog_scope()
def func(self, place):
# the shape of input variable should be clearly specified, not include -1.
eps = 0.005
dtype = np.float32
data = paddle.static.data('data', [4, 5, 6], dtype)
data.persistable = True
out = paddle.slice(
data, axes=[0, 1, 2], starts=[-3, 0, 2], ends=[3, 2, 4]
)
data_arr = np.random.uniform(-1, 1, data.shape).astype(dtype)
gradient_checker.double_grad_check(
[data], out, x_init=[data_arr], place=place, eps=eps
)
gradient_checker.double_grad_check_for_dygraph(
self.slice_wrapper, [data], out, x_init=[data_arr], place=place
)
def test_grad(self):
with paddle_static_guard():
for p in get_places():
self.func(p)
class TestSliceTripleGradCheck(unittest.TestCase):
def slice_wrapper(self, x):
return paddle.slice(
x[0], axes=[0, 1, 2], starts=[-3, 0, 2], ends=[3, 2, 4]
)
@prog_scope()
def func(self, place):
# the shape of input variable should be clearly specified, not include -1.
eps = 0.005
dtype = np.float32
data = paddle.static.data('data', [4, 5, 6], dtype)
data.persistable = True
out = paddle.slice(
data, axes=[0, 1, 2], starts=[-3, 0, 2], ends=[3, 2, 4]
)
data_arr = np.random.uniform(-1, 1, data.shape).astype(dtype)
gradient_checker.triple_grad_check(
[data], out, x_init=[data_arr], place=place, eps=eps
)
gradient_checker.triple_grad_check_for_dygraph(
self.slice_wrapper, [data], out, x_init=[data_arr], place=place
)
def test_grad(self):
with paddle_static_guard():
for p in get_places():
self.func(p)
class TestSliceTensorArray(unittest.TestCase):
def test_slice_range(self):
with paddle.pir_utils.IrGuard():
arr = paddle.tensor.create_array("int32")
x = paddle.static.data("x", shape=[2, 2], dtype="int32")
y = paddle.static.data("y", shape=[1, 2], dtype="int32")
zero = paddle.tensor.creation.fill_constant([], 'int64', 0)
paddle.tensor.array_write(x, zero, array=arr)
paddle.tensor.array_write(y, zero + 1, array=arr)
sliced_array = paddle._pir_ops.slice_array(arr, [0], [1])
self.assertTrue(sliced_array.is_dense_tensor_array_type())
self.assertEqual(sliced_array.dtype, paddle.pir.core.DataType.INT32)
def test_slice_item(self):
with paddle.pir_utils.IrGuard():
arr = paddle.tensor.create_array("int32")
x = paddle.static.data("x", shape=[2, 2], dtype="int32")
y = paddle.static.data("y", shape=[1, 2], dtype="int32")
zero = paddle.tensor.creation.fill_constant([], 'int64', 0)
paddle.tensor.array_write(x, zero, array=arr)
paddle.tensor.array_write(y, zero + 1, array=arr)
sliced_item = paddle._pir_ops.slice_array_dense(arr, [0])
self.assertTrue(sliced_item.is_dense_tensor_type())
self.assertEqual(sliced_item.dtype, paddle.pir.core.DataType.INT32)
# TODO(dev): sliced item shape should be [-1, 2]
if __name__ == '__main__':
paddle.enable_static()
unittest.main()