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paddlepaddle--paddle/test/auto_parallel/spmd_rules/test_gather_rule.py
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2026-07-13 12:40:42 +08:00

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Python

# Copyright (c) 2023 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 collections import OrderedDict
from paddle.distributed.auto_parallel.static.dist_attribute import (
DistTensorSpec,
TensorDistAttr,
)
from paddle.distributed.fleet import auto
from paddle.framework import core
class TestScatterSPMDRule(unittest.TestCase):
"""
Unit tests for scatter spmd rule.
"""
def setUp(self):
x_shape = [64, 32, 48]
index_shape = [16]
updates_shape = [32, 32, 48]
process_mesh = auto.ProcessMesh(mesh=[0, 1, 2, 3])
self.attrs = OrderedDict()
self.attrs['axis'] = 0
self.rule = core.get_phi_spmd_rule("gather")
x_dist_attr = TensorDistAttr()
x_dist_attr.dims_mapping = [-1, -1, -1]
x_dist_attr.process_mesh = process_mesh
self.x_spec = DistTensorSpec(x_shape, x_dist_attr)
index_dist_attr = TensorDistAttr()
index_dist_attr.dims_mapping = [-1]
index_dist_attr.process_mesh = process_mesh
self.index_spec = DistTensorSpec(index_shape, index_dist_attr)
def test_single_mesh_dim(self):
# axis: 0
# dims_mapping: [0, -1, -1], [-1] --> [-1, -1, -1], [-1], [-1, -1, -1]
self.attrs['axis'] = 0
self.x_spec.set_dims_mapping([0, -1, -1])
self.index_spec.set_dims_mapping([-1])
result_dist_attrs = self.rule.infer_forward(
self.x_spec,
self.index_spec,
self.attrs['axis'],
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(len(result_dist_attrs), 2)
self.assertEqual(len(inferred_input_dist_attrs), 2)
self.assertEqual(len(inferred_output_dist_attrs), 1)
self.assertEqual(
inferred_input_dist_attrs[0].dims_mapping, [-1, -1, -1]
)
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [-1])
self.assertEqual(
inferred_output_dist_attrs[0].dims_mapping, [-1, -1, -1]
)
# axis: 0
# dims_mapping: [-1, 0, -1], [-1] --> [-1, 0, -1], [-1], [-1, 0, -1]
self.attrs['axis'] = 0
self.x_spec.set_dims_mapping([-1, 0, -1])
self.index_spec.set_dims_mapping([-1])
result_dist_attrs = self.rule.infer_forward(
self.x_spec,
self.index_spec,
self.attrs['axis'],
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(len(result_dist_attrs), 2)
self.assertEqual(len(inferred_input_dist_attrs), 2)
self.assertEqual(len(inferred_output_dist_attrs), 1)
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [-1, 0, -1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [-1])
self.assertEqual(
inferred_output_dist_attrs[0].dims_mapping, [-1, 0, -1]
)
# axis: 0
# dims_mapping: [0, -1, -1], [0] --> [-1, -1, -1], [0], [0, -1, -1]
self.attrs['axis'] = 0
self.x_spec.set_dims_mapping([0, -1, -1])
self.index_spec.set_dims_mapping([0])
result_dist_attrs = self.rule.infer_forward(
self.x_spec,
self.index_spec,
self.attrs['axis'],
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(len(result_dist_attrs), 2)
self.assertEqual(len(inferred_input_dist_attrs), 2)
self.assertEqual(len(inferred_output_dist_attrs), 1)
self.assertEqual(
inferred_input_dist_attrs[0].dims_mapping, [-1, -1, -1]
)
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0])
self.assertEqual(
inferred_output_dist_attrs[0].dims_mapping, [0, -1, -1]
)
# 0-d tensor
# axis: 1
# dims_mapping: [-1, 0, -1], [0] --> [-1, -1, -1], [-1], [-1, -1]
self.attrs['axis'] = 1
self.index_spec.shape = []
self.x_spec.set_dims_mapping([-1, 0, -1])
self.index_spec.set_dims_mapping([0])
result_dist_attrs = self.rule.infer_forward(
self.x_spec,
self.index_spec,
self.attrs['axis'],
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(len(result_dist_attrs), 2)
self.assertEqual(len(inferred_input_dist_attrs), 2)
self.assertEqual(len(inferred_output_dist_attrs), 1)
self.assertEqual(
inferred_input_dist_attrs[0].dims_mapping, [-1, -1, -1]
)
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [-1])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [-1, -1])
self.index_spec.shape = [16]
def test_multi_mesh_dim(self):
process_mesh = auto.ProcessMesh(mesh=[[0, 1, 2], [3, 4, 5]])
self.x_spec.set_process_mesh(process_mesh)
self.index_spec.set_process_mesh(process_mesh)
# axis = 1
# [0, 1, -1], [1] --> [0, -1, -1], [1], [0, 1, -1]
self.attrs['axis'] = 1
self.x_spec.set_dims_mapping([0, 1, -1])
self.index_spec.set_dims_mapping([1])
result_dist_attrs = self.rule.infer_forward(
self.x_spec,
self.index_spec,
self.attrs['axis'],
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(len(result_dist_attrs), 2)
self.assertEqual(len(inferred_input_dist_attrs), 2)
self.assertEqual(len(inferred_output_dist_attrs), 1)
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [0, -1, -1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [1])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [0, 1, -1])
# [0, 1, -1], [0] --> [0, -1, -1], [0], [0, -1, -1]
self.attrs['axis'] = 1
self.x_spec.set_dims_mapping([0, 1, -1])
self.index_spec.set_dims_mapping([0])
result_dist_attrs = self.rule.infer_forward(
self.x_spec,
self.index_spec,
self.attrs['axis'],
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(len(result_dist_attrs), 2)
self.assertEqual(len(inferred_input_dist_attrs), 2)
self.assertEqual(len(inferred_output_dist_attrs), 1)
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [0, -1, -1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0])
self.assertEqual(
inferred_output_dist_attrs[0].dims_mapping, [0, -1, -1]
)
def test_reverse_multi_mesh_dim(self):
process_mesh = auto.ProcessMesh(mesh=[[0, 1, 2], [3, 4, 5]])
self.x_spec.set_process_mesh(process_mesh)
self.index_spec.set_process_mesh(process_mesh)
self.out_spec = DistTensorSpec(self.x_spec)
# axis = 1
# [1, 0, -1] --> [1, -1, -1], [0], [1, 0, -1]
self.attrs['axis'] = 1
self.out_spec.set_dims_mapping([1, 0, -1])
result_dist_attrs = self.rule.infer_backward(
self.x_spec,
self.index_spec,
self.out_spec,
self.attrs['axis'],
)
inferred_input_dist_attrs = result_dist_attrs[0]
inferred_output_dist_attrs = result_dist_attrs[1]
self.assertEqual(len(result_dist_attrs), 2)
self.assertEqual(len(inferred_input_dist_attrs), 2)
self.assertEqual(len(inferred_output_dist_attrs), 1)
self.assertEqual(inferred_input_dist_attrs[0].dims_mapping, [1, -1, -1])
self.assertEqual(inferred_input_dist_attrs[1].dims_mapping, [0])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [1, 0, -1])
if __name__ == "__main__":
unittest.main()