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106 lines
3.9 KiB
106 lines
3.9 KiB
from functools import partial
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import pytest
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import torch
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import torch.distributed as dist
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import torch.multiprocessing as mp
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from colossalai.communication.p2p import send_forward, recv_forward, send_backward, recv_backward, send_forward_recv_backward, send_backward_recv_forward
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from colossalai.context import ParallelMode
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from colossalai.core import global_context as gpc
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from colossalai.initialize import launch
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from colossalai.utils import free_port, get_current_device
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from colossalai.testing import rerun_if_address_is_in_use
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CONFIG = dict(parallel=dict(pipeline=2))
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torch.manual_seed(123)
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LIST_LENGTH = 3
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TENSOR_SIZE = torch.Size((3, 3))
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TENSOR_SIZE_LIST = [TENSOR_SIZE for i in range(LIST_LENGTH)]
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data = torch.rand(3, 3)
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data_list = [torch.rand(3, 3) for i in range(LIST_LENGTH)]
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grad = torch.rand(3, 3)
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grad_list = [torch.rand(3, 3) for i in range(LIST_LENGTH)]
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def check_send_recv_forward():
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if gpc.get_local_rank(ParallelMode.PIPELINE) == 0:
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device = torch.device('cuda:0')
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data_to_send = data.to(device)
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data_list_to_send = []
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for data_in_list in data_list:
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data_list_to_send.append(data_in_list.to(device))
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send_forward(data_to_send)
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send_forward(data_list_to_send)
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else:
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device = torch.device('cuda:1')
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data_recv = recv_forward(TENSOR_SIZE)
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data_list_recv = recv_forward(TENSOR_SIZE_LIST)
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data_to_check = data.to(device)
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assert data_recv.equal(data_to_check)
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for data_recv, data_send in zip(data_list_recv, data_list):
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data_to_check = data_send.to(device)
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assert data_recv.equal(data_to_check)
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def check_send_recv_backward():
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if gpc.get_local_rank(ParallelMode.PIPELINE) == 0:
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device = torch.device('cuda:0')
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grad_recv = recv_backward(TENSOR_SIZE)
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grad_list_recv = recv_backward(TENSOR_SIZE_LIST)
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grad_to_check = grad.to(device)
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assert grad_recv.equal(grad_to_check)
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for grad_recv, grad_send in zip(grad_list_recv, grad_list):
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grad_to_check = grad_send.to(device)
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assert grad_recv.equal(grad_to_check)
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else:
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device = torch.device('cuda:1')
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grad_to_send = grad.to(device)
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grad_list_to_send = []
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for grad_in_list in grad_list:
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grad_list_to_send.append(grad_in_list.to(device))
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send_backward(grad_to_send)
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send_backward(grad_list_to_send)
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def check_send_recv_forward_backward():
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if gpc.get_local_rank(ParallelMode.PIPELINE) == 0:
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device = torch.device('cuda:0')
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data_list_to_send = []
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for data_in_list in data_list:
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data_list_to_send.append(data_in_list.to(device))
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grad_list_recv = send_forward_recv_backward(data_list_to_send, TENSOR_SIZE_LIST)
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for grad_recv, grad_send in zip(grad_list_recv, grad_list):
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grad_to_check = grad_send.to(device)
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assert grad_recv.equal(grad_to_check)
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else:
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device = torch.device('cuda:1')
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grad_list_to_send = []
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for grad_in_list in grad_list:
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grad_list_to_send.append(grad_in_list.to(device))
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data_list_recv = send_backward_recv_forward(grad_list_to_send, TENSOR_SIZE_LIST)
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for data_recv, data_send in zip(data_list_recv, data_list):
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data_to_check = data_send.to(device)
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assert data_recv.equal(data_to_check)
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def check_layer(rank, world_size, port):
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launch(config=CONFIG, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
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check_send_recv_forward()
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check_send_recv_backward()
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check_send_recv_forward_backward()
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gpc.destroy()
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torch.cuda.empty_cache()
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@pytest.mark.dist
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@rerun_if_address_is_in_use()
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def test_object_list_p2p():
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world_size = 2
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run_func = partial(check_layer, world_size=world_size, port=free_port())
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mp.spawn(run_func, nprocs=world_size)
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if __name__ == '__main__':
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test_object_list_p2p()
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