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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 os
import numpy as np
import paddle
import paddle.distributed as dist
from paddle.distributed.auto_parallel.static.pir_pass import (
ReshardPasses,
)
from paddle.distributed.auto_parallel.static.utils import set_all_ops_op_role
from paddle.distributed.fleet.meta_optimizers.common import OpRole
class TestReshardRToS:
def __init__(self):
self._shape = eval(os.getenv("shape"))
self._dtype = os.getenv("dtype")
self._seeds = eval(os.getenv("seeds"))
self._shard = eval(os.getenv("shard"))
self._backend = os.getenv("backend")
self._mesh = dist.ProcessMesh([0, 1], dim_names=["x"])
def run_test_case(self):
if self._backend == "cpu":
paddle.set_device("cpu")
a = paddle.ones(self._shape)
in_placements = [dist.Replicate()]
input_tensor = dist.shard_tensor(a, self._mesh, in_placements)
out_placements = [dist.Shard(self._shard)]
out = dist.reshard(input_tensor, self._mesh, out_placements)
out_shape = list(self._shape)
if out_shape[self._shard] % 2 == 0:
out_shape[self._shard] = out_shape[self._shard] // 2
np.testing.assert_equal(out.numpy(), input_tensor.numpy())
else:
out_shape[self._shard] = (
out_shape[self._shard] // 2
if dist.get_rank() == 1
else out_shape[self._shard] // 2 + 1
)
assert np.equal(out.shape, input_tensor.shape).all()
assert np.equal(out._local_shape, out_shape).all()
def run_pir_test_case(self):
paddle.enable_static()
if self._backend == "cpu":
paddle.set_device("cpu")
place = paddle.CPUPlace()
elif self._backend == "gpu":
place = paddle.CUDAPlace(dist.get_rank())
BATCH_SIZE = 2
SEQ_LEN = 4
HIDDEN_SIZE = 8
MP_SIZE = 2
with paddle.pir_utils.IrGuard():
main_program = paddle.base.Program()
with paddle.base.program_guard(main_program):
mesh = dist.ProcessMesh([0, 1], dim_names=['mp'])
input = paddle.static.data(
name='input', shape=[BATCH_SIZE, SEQ_LEN, HIDDEN_SIZE]
)
w0 = paddle.pir.core.create_parameter(
dtype="float32",
shape=[HIDDEN_SIZE, HIDDEN_SIZE],
name="w0",
initializer=paddle.nn.initializer.Uniform(),
)
input_tensor = dist.shard_tensor(
w0, self._mesh, [dist.Replicate()]
)
paddle._C_ops.reshard(
input_tensor, self._mesh, [dist.Shard(self._shard)]
)
dist_program = main_program.clone()
set_all_ops_op_role(dist_program.global_block(), OpRole.Forward)
ReshardPasses.apply_reshard_pass(dist_program)
np.testing.assert_equal(dist_program.num_ops(), 6)
old_ops = [op.name() for op in main_program.global_block().ops]
new_ops = [op.name() for op in dist_program.global_block().ops]
assert 'pd_op.slice' in new_ops
assert 'dist_op.reshard' not in new_ops
assert 'dist_op.reshard' in old_ops
if __name__ == '__main__':
TestReshardRToS().run_test_case()
TestReshardRToS().run_pir_test_case()