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

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# Copyright (c) 2024 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
from paddle.distributed.auto_parallel.static.dist_attribute import (
DistTensorSpec,
TensorDistAttr,
)
from paddle.distributed.fleet import auto
from paddle.framework import core
class TestGatherNdSPMDRule(unittest.TestCase):
"""
Unit tests for gather_nd spmd rule.
"""
def setUp(self):
x_shape = [10, 20]
index_shape = [2, 4, 1]
self.process_mesh = auto.ProcessMesh(mesh=[[0, 1, 2, 3], [4, 5, 6, 7]])
self.rule = core.get_phi_spmd_rule("gather_nd")
x_dist_attr = TensorDistAttr()
x_dist_attr.dims_mapping = [-1, -1]
x_dist_attr.process_mesh = self.process_mesh
self.x_spec = DistTensorSpec(x_shape, x_dist_attr)
index_dist_attr = TensorDistAttr()
index_dist_attr.dims_mapping = [0, -1, -1]
index_dist_attr.process_mesh = self.process_mesh
self.index_spec = DistTensorSpec(index_shape, index_dist_attr)
def test_forward_mesh_dim(self):
# dims_mapping: [-1, -1], [0, -1, -1] --> [0, -1, -1]
self.x_spec.set_dims_mapping([-1, -1])
self.index_spec.set_dims_mapping([0, -1, -1])
result_dist_attrs = self.rule.infer_forward(
self.x_spec, self.index_spec
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [-1, -1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0, -1, -1])
self.assertEqual(
inferred_output_dist_attrs[0].dims_mapping, [0, -1, -1]
)
def test_forward_mesh_dim_diff_shape(self):
# dims_mapping: [-1], [0, -1] --> [0]
x_shape = [10]
index_shape = [8, 1]
x_dist_attr = TensorDistAttr()
x_dist_attr.dims_mapping = [-1]
x_dist_attr.process_mesh = self.process_mesh
x_spec = DistTensorSpec(x_shape, x_dist_attr)
index_dist_attr = TensorDistAttr()
index_dist_attr.dims_mapping = [0, -1]
index_dist_attr.process_mesh = self.process_mesh
index_spec = DistTensorSpec(index_shape, index_dist_attr)
result_dist_attrs = self.rule.infer_forward(x_spec, index_spec)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [-1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0, -1])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [0])
def test_forward_mesh_dim_same_shape(self):
# dims_mapping: [-1], [0] --> [0]
x_shape = [10]
index_shape = [4]
x_dist_attr = TensorDistAttr()
x_dist_attr.dims_mapping = [-1]
x_dist_attr.process_mesh = self.process_mesh
x_spec = DistTensorSpec(x_shape, x_dist_attr)
index_dist_attr = TensorDistAttr()
index_dist_attr.dims_mapping = [0]
index_dist_attr.process_mesh = self.process_mesh
index_spec = DistTensorSpec(index_shape, index_dist_attr)
result_dist_attrs = self.rule.infer_forward(x_spec, index_spec)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [-1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [0])
def test_reverse_mesh_dim(self):
self.x_spec.set_process_mesh(self.process_mesh)
self.index_spec.set_process_mesh(self.process_mesh)
out_shape = [2, 4, 20]
out_dist_attr = TensorDistAttr()
out_dist_attr.dims_mapping = [0, -1, -1]
out_dist_attr.process_mesh = self.process_mesh
self.out_spec = DistTensorSpec(out_shape, out_dist_attr)
# axis = 1
# [0, -1, -1] --> [-1, -1], [0, -1, -1]
result_dist_attrs = self.rule.infer_backward(
self.x_spec,
self.index_spec,
self.out_spec,
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [-1, -1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0, -1, -1])
self.assertEqual(
inferred_output_dist_attrs[0].dims_mapping, [0, -1, -1]
)
def test_reverse_mesh_dim_same_shape(self):
x_shape = [10]
index_shape = [4]
x_dist_attr = TensorDistAttr()
x_dist_attr.dims_mapping = [-1]
x_dist_attr.process_mesh = self.process_mesh
x_spec = DistTensorSpec(x_shape, x_dist_attr)
index_dist_attr = TensorDistAttr()
index_dist_attr.dims_mapping = [0]
index_dist_attr.process_mesh = self.process_mesh
index_spec = DistTensorSpec(index_shape, index_dist_attr)
x_spec.set_process_mesh(self.process_mesh)
index_spec.set_process_mesh(self.process_mesh)
out_shape = [4]
out_dist_attr = TensorDistAttr()
out_dist_attr.dims_mapping = [0]
out_dist_attr.process_mesh = self.process_mesh
out_spec = DistTensorSpec(out_shape, out_dist_attr)
# [0] --> [-1], [0]
result_dist_attrs = self.rule.infer_backward(
x_spec,
index_spec,
out_spec,
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [-1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [0])
def test_reverse_mesh_dim_diff_shape(self):
# dims_mapping: [-1], [0, -1] --> [0]
x_shape = [10]
index_shape = [8, 1]
x_dist_attr = TensorDistAttr()
x_dist_attr.dims_mapping = [-1]
x_dist_attr.process_mesh = self.process_mesh
x_spec = DistTensorSpec(x_shape, x_dist_attr)
index_dist_attr = TensorDistAttr()
index_dist_attr.dims_mapping = [0, -1]
index_dist_attr.process_mesh = self.process_mesh
index_spec = DistTensorSpec(index_shape, index_dist_attr)
x_spec.set_process_mesh(self.process_mesh)
index_spec.set_process_mesh(self.process_mesh)
out_shape = [8]
out_dist_attr = TensorDistAttr()
out_dist_attr.dims_mapping = [0]
out_dist_attr.process_mesh = self.process_mesh
out_spec = DistTensorSpec(out_shape, out_dist_attr)
# [0] --> [-1], [0, -1]
result_dist_attrs = self.rule.infer_backward(
x_spec,
index_spec,
out_spec,
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [-1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0, -1])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [0])
if __name__ == "__main__":
unittest.main()