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paddlepaddle--paddle/test/collective/process_group_gloo.py
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2026-07-13 12:40:42 +08:00

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Python

# Copyright (c) 2022 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 random
import unittest
from copy import deepcopy
import numpy as np
import paddle
from paddle.base import core
class TestProcessGroupFp32(unittest.TestCase):
def setUp(self):
paddle.seed(2022)
random.seed(2022)
np.random.seed(2022)
self.config()
def config(self):
self.dtype = "float32"
self.shape = (2, 10, 5)
def test_create_process_group_gloo(self):
nranks = paddle.distributed.ParallelEnv().nranks
rank = paddle.distributed.ParallelEnv().local_rank
is_master = True if rank == 0 else False
store = paddle.base.core.TCPStore(
"127.0.0.1", 6272, is_master, nranks, 30
)
pg = paddle.base.core.ProcessGroupGloo.create(store, rank, nranks)
# test allreduce sum
# rank 0
paddle.device.set_device('cpu')
x = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random(self.shape).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
sum_result = x + y
if rank == 0:
task = pg.allreduce(tensor_x)
task.wait()
np.testing.assert_equal(tensor_x, sum_result)
else:
task = pg.allreduce(tensor_y)
task.wait()
np.testing.assert_equal(tensor_y, sum_result)
print("test allreduce sum api ok")
# test allreduce max
# rank 0
x = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random(self.shape).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
max_result = paddle.maximum(tensor_x, tensor_y)
if rank == 0:
task = pg.allreduce(tensor_x, core.ReduceOp.MAX)
task.wait()
np.testing.assert_array_equal(tensor_x, max_result)
else:
task = pg.allreduce(tensor_y, core.ReduceOp.MAX)
task.wait()
np.testing.assert_array_equal(tensor_y, max_result)
print("test allreduce max api ok")
# test broadcast
# rank 0
x = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random(self.shape).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
broadcast_result = paddle.assign(tensor_x)
if rank == 0:
task = pg.broadcast(tensor_x, 0)
np.testing.assert_array_equal(broadcast_result, tensor_x)
else:
task = pg.broadcast(tensor_y, 0)
np.testing.assert_array_equal(broadcast_result, tensor_y)
print("test broadcast api ok")
# test send_recv
# rank 0
x = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random(self.shape).astype(self.dtype)
tensor_y_1 = paddle.to_tensor(y)
tensor_y_2 = deepcopy(tensor_y_1)
send_recv_result_1 = paddle.assign(tensor_x)
send_recv_result_2 = paddle.assign(tensor_y_2)
if pg.rank() == 0:
task = pg.send(tensor_x, pg.size() - 1, True)
elif pg.rank() == pg.size() - 1:
task = pg.recv(tensor_y_1, 0, True)
np.testing.assert_array_equal(send_recv_result_1, tensor_y_1)
if pg.rank() == 0:
task = pg.recv(tensor_x, pg.size() - 1, True)
np.testing.assert_array_equal(send_recv_result_2, tensor_x)
elif pg.rank() == pg.size() - 1:
task = pg.send(tensor_y_2, 0, True)
print("test send_recv api ok")
# test barrier
# rank 0
if pg.rank() == 0:
task = pg.barrier()
task.wait()
# rank 1
else:
task = pg.barrier()
task.wait()
print("test barrier api ok\n")
# test allgather
# rank 0
x = np.random.random(self.shape).astype(self.dtype)
y = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
tensor_y = paddle.to_tensor(y)
out_shape = list(self.shape)
out_shape[0] *= 2
out = np.random.random(out_shape).astype(self.dtype)
tensor_out = paddle.to_tensor(out)
if pg.rank() == 0:
task = pg.all_gather(tensor_x, tensor_out)
task.wait()
paddle.device.cuda.synchronize()
# rank 1
else:
task = pg.all_gather(tensor_y, tensor_out)
task.wait()
out_1 = paddle.slice(tensor_out, [0], [0], [out_shape[0] // 2])
out_2 = paddle.slice(
tensor_out, [0], [out_shape[0] // 2], [out_shape[0]]
)
np.testing.assert_array_equal(tensor_x, out_1)
np.testing.assert_array_equal(tensor_y, out_2)
print("test allgather api ok\n")
# test Reduce
# rank 0
x = np.random.random(self.shape).astype(self.dtype)
y = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
tensor_y = paddle.to_tensor(y)
sum_result = tensor_x + tensor_y
if pg.rank() == 0:
task = pg.reduce(tensor_x, 0)
task.wait()
# rank 1
else:
task = pg.reduce(tensor_y, 0)
task.wait()
if pg.rank() == 0:
np.testing.assert_array_equal(tensor_x, sum_result)
print("test reduce sum api ok\n")
# test Scatter
# rank 0
in_shape = list(self.shape)
in_shape[0] *= 2
x = np.random.random(in_shape).astype(self.dtype)
y = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
tensor_y = paddle.to_tensor(y)
if pg.rank() == 0:
task = pg.scatter(tensor_x, tensor_y, 0)
task.wait()
# rank 1
else:
task = pg.scatter(tensor_x, tensor_y, 0)
task.wait()
out1 = paddle.slice(tensor_x, [0], [0], [self.shape[0]])
out2 = paddle.slice(tensor_x, [0], [self.shape[0]], [self.shape[0] * 2])
if pg.rank() == 0:
np.testing.assert_array_equal(tensor_y, out1)
else:
np.testing.assert_array_equal(tensor_y, out2)
print("test scatter api ok\n")
# test Gather
def test_gather(root):
tensor_x = [
paddle.zeros(self.shape).astype(self.dtype)
for _ in range(pg.size())
]
tensor_y = [
paddle.to_tensor(
np.random.random(self.shape).astype(self.dtype)
)
for _ in range(pg.size())
]
if pg.rank() == root:
task = pg.gather(tensor_y[root], tensor_x, root, True)
task.wait()
np.testing.assert_array_equal(tensor_x, tensor_y)
else:
task = pg.gather(tensor_y[pg.rank()], tensor_x, root, True)
task.wait()
test_gather(0)
test_gather(pg.size() - 1)
print("test gather api ok\n")
if __name__ == "__main__":
unittest.main()