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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
import numpy as np
import paddle
from paddle.base import core
def init_process_group(strategy=None):
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", 6173, is_master, nranks)
pg_group = core.ProcessGroupCustom.create(
store,
paddle.distributed.ParallelEnv().device_type,
rank,
nranks,
)
return pg_group
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_xccl(self):
device_id = paddle.distributed.ParallelEnv().dev_id
paddle.set_device(f'custom_cpu:{device_id}')
pg = init_process_group()
x = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
y = np.random.random(self.shape).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
sum_result = tensor_x + tensor_y
if pg.rank() == 0:
task = pg.all_reduce(tensor_x, core.ReduceOp.SUM, sync_op=True)
task.wait()
# assert np.array_equal(tensor_x, sum_result)
else:
task = pg.all_reduce(tensor_y, core.ReduceOp.SUM, sync_op=True)
task.wait()
# assert np.array_equal(tensor_y, sum_result)
print("test allreduce sum api ok", flush=True)
x = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
y = np.random.random(self.shape).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
max_result = paddle.maximum(tensor_x, tensor_y)
if pg.rank() == 0:
task = pg.all_reduce(tensor_x, core.ReduceOp.MAX, sync_op=True)
task.wait()
# assert np.array_equal(tensor_x, max_result)
else:
task = pg.all_reduce(tensor_y, core.ReduceOp.MAX, sync_op=True)
task.wait()
# assert np.array_equal(tensor_y, max_result)
print("test allreduce max api ok", flush=True)
# 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 pg.rank() == 0:
task = pg.broadcast(tensor_x, 0, sync_op=True)
task.wait()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
assert task.is_completed()
# assert np.array_equal(broadcast_result, tensor_x)
else:
task = pg.broadcast(tensor_y, 0, sync_op=True)
task.wait()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
assert task.is_completed()
# assert np.array_equal(broadcast_result, tensor_y)
print("test broadcast api ok", flush=True)
# test barrier
# rank 0
if pg.rank() == 0:
task = pg.barrier(device_id)
task.wait()
# rank 1
else:
task = pg.barrier(device_id)
task.wait()
print("test barrier api ok\n", flush=True)
return
# 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_out, tensor_x, sync_op=True)
task.wait()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
# rank 1
else:
task = pg.all_gather(tensor_out, tensor_y, sync_op=True)
task.wait()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
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]]
)
# assert np.array_equal(tensor_x, out_1)
# assert np.array_equal(tensor_y, out_2)
print("test allgather api ok\n", flush=True)
# test alltoall
# rank 0
x = np.random.random(self.shape).astype(self.dtype)
y = np.random.random(self.shape).astype(self.dtype)
out1 = np.random.random(self.shape).astype(self.dtype)
out2 = np.random.random(self.shape).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
tensor_y = paddle.to_tensor(y)
tensor_out1 = paddle.to_tensor(out1)
tensor_out2 = paddle.to_tensor(out2)
raw_tensor_x_2 = paddle.slice(
tensor_x, [0], [self.shape[0] // 2], [self.shape[0]]
)
raw_tensor_y_1 = paddle.slice(tensor_y, [0], [0], [self.shape[0] // 2])
if pg.rank() == 0:
task = pg.alltoall(tensor_out1, tensor_x)
task.wait()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
# rank 1
else:
task = pg.alltoall(tensor_out2, tensor_y)
task.wait()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
out1_2 = paddle.slice(
tensor_out1, [0], [self.shape[0] // 2], [self.shape[0]]
)
out2_1 = paddle.slice(tensor_out2, [0], [0], [self.shape[0] // 2])
# if pg.rank() == 0:
# assert np.array_equal(out1_2.numpy(), raw_tensor_y_1.numpy())
# else:
# assert np.array_equal(out2_1, raw_tensor_x_2)
print("test alltoall api ok\n", flush=True)
# 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()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
# rank 1
else:
task = pg.reduce(tensor_y, 0)
task.wait()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
# if pg.rank() == 0:
# assert np.array_equal(tensor_x, sum_result)
print("test reduce sum api ok\n", flush=True)
# 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()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
# rank 1
else:
task = pg.scatter(tensor_x, tensor_y, 0)
task.wait()
# paddle.base.core._custom_device_synchronize("custom_cpu", -1)
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:
# assert np.array_equal(tensor_y, out1)
# else:
# assert np.array_equal(tensor_y, out2)
print("test scatter api ok\n", flush=True)
if __name__ == "__main__":
unittest.main()