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https://github.com/hpcaitech/ColossalAI.git
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b334822163
* [zero] polish sharded param name * polish code * polish * polish code * polish * polsih * polish
66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
from copy import deepcopy
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from functools import partial
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import colossalai
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import pytest
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import torch
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import torch.multiprocessing as mp
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from colossalai.testing import parameterize
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from colossalai.utils import free_port
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from colossalai.zero.shard_utils import (BucketTensorShardStrategy, TensorShardStrategy)
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from colossalai.zero.sharded_param import ShardedTensor
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from colossalai.zero.sharded_param.sharded_param import ShardedParamV2
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from tests.test_zero_data_parallel.common import CONFIG, allclose
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@parameterize("shard_strategy_class", [TensorShardStrategy, BucketTensorShardStrategy])
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def run_shard_tensor_with_strategy(shard_strategy_class, world_size):
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t = ShardedTensor(tensor=torch.randn(world_size * 2, 3))
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assert list(t.origin_shape) == [world_size * 2, 3]
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assert list(t.shape) == [world_size * 2, 3]
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shard_strategy = shard_strategy_class()
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# test shard strategy
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shard_strategy.shard([t])
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assert list(t.shape) == [6], f"{list(t.shape)} vs 6"
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shard_strategy.gather([t])
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assert list(t.shape) == [world_size * 2, 3], f"{list(t.shape)} vs {[world_size * 2, 3]}"
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def _run_shard_tensor(rank, world_size, port):
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colossalai.launch(config=CONFIG, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
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run_shard_tensor_with_strategy(world_size=world_size)
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@pytest.mark.dist
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@pytest.mark.parametrize("world_size", [1, 2])
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def test_shard_tensor(world_size):
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run_func = partial(_run_shard_tensor, world_size=world_size, port=free_port())
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mp.spawn(run_func, nprocs=world_size)
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def _run_shard_param_v2(rank, world_size, port):
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colossalai.launch(config=CONFIG, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
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param = torch.nn.Parameter(torch.randn(2, 3))
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param_ref = deepcopy(param)
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sparam = ShardedParamV2(param=param, process_group=None)
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allclose(sparam.sharded_data_tensor.payload, param_ref.data)
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sparam.remove_torch_payload()
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assert (param.data.numel() == 1)
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@pytest.mark.dist
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@pytest.mark.parametrize("world_size", [1, 2])
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def test_shard_param_v2(world_size):
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run_func = partial(_run_shard_param_v2, 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_shard_tensor(2)
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test_shard_param_v2(2)
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