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

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Python

# Copyright (c) 2025 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 TestElementwiseSPMDRule(unittest.TestCase):
def setUp(self):
self.clip_rule = core.get_phi_spmd_rule("clip")
x_shape = [64, 36]
process_mesh = auto.ProcessMesh(mesh=[0, 1, 2, 3])
x_tensor_dist_attr = TensorDistAttr()
x_tensor_dist_attr.dims_mapping = [1, 0]
x_tensor_dist_attr.process_mesh = process_mesh
self.x_dist_tensor_spec = DistTensorSpec(x_shape, x_tensor_dist_attr)
self.out_dist_tensor_spec = DistTensorSpec(self.x_dist_tensor_spec)
self.attrs = []
def test_single_mesh_dim(self):
# [-1, 0]--> [-1, 0], [-1, 0]
self.x_dist_tensor_spec.set_dims_mapping([-1, 0])
result_dist_attrs = self.clip_rule.infer_forward(
self.x_dist_tensor_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, 0])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [-1, 0])
def test_backward_single_mesh_dim(self):
# [-1, 0]--> [-1, 0], [-1, 0] (output --> inputs, output)
self.out_dist_tensor_spec.set_dims_mapping([-1, 0])
result_dist_attrs = self.clip_rule.infer_backward(
self.x_dist_tensor_spec, self.out_dist_tensor_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, 0])
self.assertEqual(inferred_output_dist_attrs[0].dims_mapping, [-1, 0])
if __name__ == "__main__":
unittest.main()