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

695 lines
24 KiB
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
import paddle.distributed as dist
def init_process_group(strategy=None):
nranks = paddle.distributed.ParallelEnv().nranks
rank = dist.ParallelEnv().local_rank
is_master = True if rank == 0 else False
pg_group = dist.init_parallel_env()
return pg_group.process_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_nccl(self):
device_id = paddle.distributed.ParallelEnv().dev_id
paddle.set_device(f'gpu:{device_id}')
assert paddle.distributed.is_available()
pg = init_process_group()
print("rank:", pg.rank(), "size:", pg.size(), "name:", pg.name())
print("test new group api ok")
assert paddle.distributed.get_backend() == "NCCL"
# test allreduce sum
# 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)
sum_result = tensor_x + tensor_y
if pg.rank() == 0:
task = dist.all_reduce(tensor_x)
np.testing.assert_array_equal(tensor_x, sum_result)
else:
task = dist.all_reduce(tensor_y)
np.testing.assert_array_equal(tensor_y, sum_result)
print("test allreduce sum api ok")
# test allreduce sum with shape = []
# rank 0
x = np.random.random([]).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random([]).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
sum_result = tensor_x + tensor_y
if pg.rank() == 0:
task = dist.all_reduce(tensor_x)
np.testing.assert_array_equal(tensor_x, sum_result)
else:
task = dist.all_reduce(tensor_y)
np.testing.assert_array_equal(tensor_y, sum_result)
print("test allreduce sum api with = [] 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 pg.rank() == 0:
task = dist.all_reduce(tensor_x, dist.ReduceOp.MAX, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, max_result)
else:
task = dist.all_reduce(tensor_y, dist.ReduceOp.MAX, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_y, max_result)
print("test allreduce max api ok")
# test allreduce max with shape = []
# rank 0
x = np.random.random([]).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random([]).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
max_result = paddle.maximum(tensor_x, tensor_y)
if pg.rank() == 0:
task = dist.all_reduce(tensor_x, dist.ReduceOp.MAX, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, max_result)
else:
task = dist.all_reduce(tensor_y, dist.ReduceOp.MAX, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_y, max_result)
print("test allreduce max api with shape = [] ok")
# test allreduce min
# 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)
min_result = paddle.minimum(tensor_x, tensor_y)
if pg.rank() == 0:
task = dist.all_reduce(tensor_x, dist.ReduceOp.MIN, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, min_result)
else:
task = dist.all_reduce(tensor_y, dist.ReduceOp.MIN, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_y, min_result)
print("test allreduce min api ok")
# test allreduce min with shape = []
# rank 0
x = np.random.random([]).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random([]).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
min_result = paddle.minimum(tensor_x, tensor_y)
if pg.rank() == 0:
task = dist.all_reduce(tensor_x, dist.ReduceOp.MIN, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, min_result)
else:
task = dist.all_reduce(tensor_y, dist.ReduceOp.MIN, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_y, min_result)
print("test allreduce min api with shape [] ok")
# test allreduce prod
# 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)
prod_result = np.multiply(x, y)
if pg.rank() == 0:
task = dist.all_reduce(tensor_x, dist.ReduceOp.PROD, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, prod_result)
else:
task = dist.all_reduce(tensor_y, dist.ReduceOp.PROD, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_y, prod_result)
print("test allreduce prod api ok")
# test allreduce prod with shape = []
# rank 0
x = np.random.random([]).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random([]).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
prod_result = np.multiply(x, y)
if pg.rank() == 0:
task = dist.all_reduce(tensor_x, dist.ReduceOp.PROD, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, prod_result)
else:
task = dist.all_reduce(tensor_y, dist.ReduceOp.PROD, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_y, prod_result)
print("test allreduce prod api with shape = [] 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 pg.rank() == 0:
task = dist.broadcast(tensor_x, 0, sync_op=False)
task.synchronize()
paddle.device.cuda.synchronize()
assert task.is_completed()
np.testing.assert_array_equal(broadcast_result, tensor_x)
else:
task = dist.broadcast(tensor_y, 0)
paddle.device.cuda.synchronize()
np.testing.assert_array_equal(broadcast_result, tensor_y)
print("test broadcast api ok")
# test broadcast with shape=[]
# rank 0
x = np.random.random([]).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random([]).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
broadcast_result = paddle.assign(tensor_x)
if pg.rank() == 0:
task = dist.broadcast(tensor_x, 0, sync_op=False)
task.synchronize()
paddle.device.cuda.synchronize()
assert task.is_completed()
np.testing.assert_array_equal(broadcast_result, tensor_x)
else:
task = dist.broadcast(tensor_y, 0)
paddle.device.cuda.synchronize()
np.testing.assert_array_equal(broadcast_result, tensor_y)
assert tensor_y.shape == []
print("test broadcast api with shape=[] ok")
# test barrier
# rank 0
if pg.rank() == 0:
pg.barrier(device_id)
# rank 1
else:
task = pg.barrier(device_id)
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:
tensor_out_list = [
paddle.empty_like(tensor_x),
paddle.empty_like(tensor_x),
]
task = dist.all_gather(tensor_out_list, tensor_y, sync_op=False)
paddle.device.cuda.synchronize()
tensor_out = paddle.concat(tensor_out_list)
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")
if pg.rank() == 0:
task = pg.all_gather(tensor_x, tensor_out)
task.wait()
paddle.device.cuda.synchronize()
# rank 1
else:
tensor_out_list = []
task = dist.all_gather(tensor_out_list, tensor_y, sync_op=False)
paddle.device.cuda.synchronize()
tensor_out = paddle.concat(tensor_out_list)
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 api2 ok\n")
# test allgather with shape = []
# rank 0
x = np.random.random([]).astype(self.dtype)
y = np.random.random([]).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
tensor_y = paddle.to_tensor(y)
tensor_out_list = []
if pg.rank() == 0:
task = dist.all_gather(tensor_out_list, tensor_x)
task.wait()
paddle.device.cuda.synchronize()
# rank 1
else:
task = dist.all_gather(tensor_out_list, tensor_y, sync_op=False)
paddle.device.cuda.synchronize()
out_1 = tensor_out_list[0]
out_2 = tensor_out_list[1]
np.testing.assert_array_equal(tensor_x, out_1)
np.testing.assert_array_equal(tensor_y, out_2)
print("test allgather api with shape [] ok\n")
# 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()
# rank 1
else:
in_1, in_2 = paddle.split(tensor_y, 2)
out_1, out_2 = paddle.split(tensor_out2, 2)
out_tensor_list = [out_1, out_2]
task = dist.alltoall(out_tensor_list, [in_1, in_2])
paddle.device.cuda.synchronize()
tensor_out2 = paddle.concat(out_tensor_list)
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:
np.testing.assert_array_equal(
out1_2.numpy(), raw_tensor_y_1.numpy()
)
else:
np.testing.assert_array_equal(out2_1, raw_tensor_x_2)
print("test alltoall api ok\n")
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()
# rank 1
else:
in_1, in_2 = paddle.split(tensor_y, 2)
out_1, out_2 = paddle.split(tensor_out2, 2)
out_tensor_list = []
task = dist.alltoall(out_tensor_list, [in_1, in_2])
paddle.device.cuda.synchronize()
tensor_out2 = paddle.concat(out_tensor_list)
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:
np.testing.assert_array_equal(
out1_2.numpy(), raw_tensor_y_1.numpy()
)
else:
np.testing.assert_array_equal(out2_1, raw_tensor_x_2)
print("test alltoall api2 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 = dist.reduce(tensor_x, 0, sync_op=True)
paddle.device.cuda.synchronize()
# rank 1
else:
task = dist.reduce(tensor_y, 0, sync_op=False)
task.wait()
paddle.device.cuda.synchronize()
if pg.rank() == 0:
np.testing.assert_array_equal(tensor_x, sum_result)
print("test reduce sum api ok\n")
# test reduce 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 pg.rank() == 0:
task = dist.reduce(tensor_x, 0, dist.ReduceOp.MAX, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, max_result)
else:
task = dist.reduce(tensor_y, 0, dist.ReduceOp.MAX, sync_op=False)
task.wait()
print("test reduce max api ok")
# test reduce min
# 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)
min_result = paddle.minimum(tensor_x, tensor_y)
if pg.rank() == 0:
task = dist.reduce(tensor_x, 0, dist.ReduceOp.MIN, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, min_result)
else:
task = dist.reduce(tensor_y, 0, dist.ReduceOp.MIN, sync_op=False)
task.wait()
print("test reduce min api ok")
# test reduce product
# 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)
prod_result = np.multiply(x, y)
if pg.rank() == 0:
task = dist.reduce(tensor_x, 0, dist.ReduceOp.PROD, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_x, prod_result)
else:
task = dist.reduce(tensor_y, 0, dist.ReduceOp.PROD, sync_op=False)
task.wait()
print("test reduce prod api ok")
test_reduce_with_zero_dim([], self.dtype, pg)
# 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:
in_1, in_2 = paddle.split(tensor_x, 2)
task = dist.scatter(tensor_y, [in_1, in_2], 0, sync_op=True)
# task.wait()
paddle.device.cuda.synchronize()
# rank 1
else:
task = dist.scatter(tensor_y, [], 0, sync_op=False)
task.wait()
paddle.device.cuda.synchronize()
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 Scatter with shape=[]
# rank 0
x = np.random.random([]).astype(self.dtype)
y = np.random.random([]).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
tensor_y = paddle.to_tensor(y)
if pg.rank() == 0:
in_1, in_2 = tensor_x, tensor_x + 1
task = dist.scatter(tensor_y, [in_1, in_2], 0, sync_op=True)
paddle.device.cuda.synchronize()
# rank 1
else:
task = dist.scatter(tensor_y, [], 0, sync_op=True)
task.wait()
paddle.device.cuda.synchronize()
out1 = paddle.assign(tensor_x)
out2 = paddle.assign(tensor_x + 1)
if pg.rank() == 0:
np.testing.assert_array_equal(tensor_y, out1)
else:
np.testing.assert_array_equal(tensor_y, out2)
assert tensor_y.shape == []
print("test scatter api with shape=[] ok\n")
# test send min
# 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)
if pg.rank() == 0:
task = dist.send(tensor_x, 1, sync_op=False)
task.wait()
else:
task = dist.recv(tensor_y, 0, sync_op=False)
task.wait()
np.testing.assert_array_equal(tensor_y, tensor_x)
print("test send api ok")
# test send min
# 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)
if pg.rank() == 0:
task = dist.send(tensor_x, 1, sync_op=True)
else:
task = dist.recv(tensor_y, 0, sync_op=True)
np.testing.assert_array_equal(tensor_y, tensor_x)
print("test send api ok")
# test send 0-d tensor
# rank 0
x = np.random.uniform(-1, 1, []).astype(self.dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.array(0.2022).astype(self.dtype)
tensor_y = paddle.to_tensor(y)
if pg.rank() == 0:
task = dist.send(tensor_x, 1, sync_op=True)
else:
task = dist.recv(tensor_y, 0, sync_op=True)
assert np.array_equal(tensor_y, tensor_x) and tensor_y.shape == []
print("test send & recv 0-d tensor ok")
class TestProcessGroupFp16(TestProcessGroupFp32):
def setUp(self):
paddle.seed(2022)
random.seed(2022)
np.random.seed(2022)
self.config()
def config(self):
self.dtype = "float16"
self.shape = (4, 20, 20)
def test_reduce_with_zero_dim(shape, dtype, pg):
# test Reduce With Zero Dim
# rank 0
x = np.random.random(shape).astype(dtype)
y = np.random.random(shape).astype(dtype)
tensor_x = paddle.to_tensor(x)
tensor_y = paddle.to_tensor(y)
sum_result = tensor_x + tensor_y
if pg.rank() == 0:
task = dist.reduce(tensor_x, 0, sync_op=True)
paddle.device.cuda.synchronize()
# rank 1
else:
task = dist.reduce(tensor_y, 0, sync_op=False)
task.wait()
paddle.device.cuda.synchronize()
if pg.rank() == 0:
assert np.array_equal(tensor_x, sum_result) and len(tensor_x.shape) == 0
print("test reduce with zero dim sum api ok\n")
# test reduce with zero dim max
# rank 0
x = np.random.random(shape).astype(dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random(shape).astype(dtype)
tensor_y = paddle.to_tensor(y)
max_result = paddle.maximum(tensor_x, tensor_y)
if pg.rank() == 0:
task = dist.reduce(tensor_x, 0, dist.ReduceOp.MAX, sync_op=False)
task.wait()
assert np.array_equal(tensor_x, max_result) and len(tensor_x.shape) == 0
else:
task = dist.reduce(tensor_y, 0, dist.ReduceOp.MAX, sync_op=False)
task.wait()
print("test reduce with zero dim max api ok")
# test reduce with zero dim min
# rank 0
x = np.random.random(shape).astype(dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random(shape).astype(dtype)
tensor_y = paddle.to_tensor(y)
min_result = paddle.minimum(tensor_x, tensor_y)
if pg.rank() == 0:
task = dist.reduce(tensor_x, 0, dist.ReduceOp.MIN, sync_op=False)
task.wait()
assert np.array_equal(tensor_x, min_result) and len(tensor_x.shape) == 0
else:
task = dist.reduce(tensor_y, 0, dist.ReduceOp.MIN, sync_op=False)
task.wait()
print("test reduce with zero dim min api ok")
# test reduce with zero dim product
# rank 0
x = np.random.random(shape).astype(dtype)
tensor_x = paddle.to_tensor(x)
# rank 1
y = np.random.random(shape).astype(dtype)
tensor_y = paddle.to_tensor(y)
prod_result = np.multiply(x, y)
if pg.rank() == 0:
task = dist.reduce(tensor_x, 0, dist.ReduceOp.PROD, sync_op=False)
task.wait()
assert (
np.array_equal(tensor_x, prod_result) and len(tensor_x.shape) == 0
)
else:
task = dist.reduce(tensor_y, 0, dist.ReduceOp.PROD, sync_op=False)
task.wait()
print("test reduce with zero dim prod api ok")
if __name__ == "__main__":
unittest.main()