mirror of https://github.com/hpcaitech/ColossalAI
97 lines
3.0 KiB
Python
97 lines
3.0 KiB
Python
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#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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from functools import partial
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from pathlib import Path
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import pytest
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import torch.multiprocessing as mp
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from colossalai import init_dist
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from colossalai.context.parallel_mode import ParallelMode
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from colossalai.core import global_context as gpc
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CONFIG_PATH = Path(__file__).parent.joinpath('configs/parallel_2d_init.py').absolute()
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def check_data_parallel_rank(rank):
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if rank in [0, 1, 2, 3, 4, 5, 6, 7]:
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assert gpc.get_local_rank(ParallelMode.DATA) == 0
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elif rank in [8, 9, 10, 11, 12, 13, 14, 15]:
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assert gpc.get_local_rank(ParallelMode.DATA) == 1
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def check_pipeline_parallel_rank(rank):
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if rank in [0, 1, 2, 3]:
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assert gpc.get_local_rank(ParallelMode.PIPELINE) == 0
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elif rank in [4, 5, 6, 7]:
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assert gpc.get_local_rank(ParallelMode.PIPELINE) == 1
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elif rank in [8, 9, 10, 11]:
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assert gpc.get_local_rank(ParallelMode.PIPELINE) == 0
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elif rank in [12, 13, 14, 15]:
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assert gpc.get_local_rank(ParallelMode.PIPELINE) == 1
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def check_tensor_parallel_rank(rank):
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if rank in [0, 4, 8, 12]:
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assert gpc.get_local_rank(ParallelMode.TENSOR) == 0
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elif rank in [1, 5, 9, 13]:
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assert gpc.get_local_rank(ParallelMode.TENSOR) == 1
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elif rank in [2, 6, 10, 14]:
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assert gpc.get_local_rank(ParallelMode.TENSOR) == 2
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elif rank in [3, 7, 11, 15]:
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assert gpc.get_local_rank(ParallelMode.TENSOR) == 3
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def check_2d_parallel_rank(rank):
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if rank in [0, 4, 8, 12]:
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assert gpc.get_local_rank(ParallelMode.PARALLEL_2D_COL) == 0
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assert gpc.get_local_rank(ParallelMode.PARALLEL_2D_ROW) == 0
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elif rank in [1, 5, 9, 13]:
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assert gpc.get_local_rank(ParallelMode.PARALLEL_2D_COL) == 0
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assert gpc.get_local_rank(ParallelMode.PARALLEL_2D_ROW) == 1
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elif rank in [2, 6, 10, 14]:
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assert gpc.get_local_rank(ParallelMode.PARALLEL_2D_COL) == 1
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assert gpc.get_local_rank(ParallelMode.PARALLEL_2D_ROW) == 0
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elif rank in [3, 7, 11, 15]:
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assert gpc.get_local_rank(ParallelMode.PARALLEL_2D_COL) == 1
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assert gpc.get_local_rank(ParallelMode.PARALLEL_2D_ROW) == 1
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def init_2d(local_rank, world_size, backend, port, host):
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dist_args = dict(
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config=CONFIG_PATH,
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local_rank=local_rank,
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world_size=world_size,
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backend=backend,
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port=port,
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host=host
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)
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init_dist(**dist_args)
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check_tensor_parallel_rank(local_rank)
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check_data_parallel_rank(local_rank)
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check_2d_parallel_rank(local_rank)
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check_pipeline_parallel_rank(local_rank)
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gpc.destroy()
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@pytest.mark.cpu
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def test_2d_init():
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"""
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As no computation or communication is done, we can run this test on CPU.
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"""
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world_size = 16
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test_fn = partial(init_2d,
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world_size=world_size,
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backend='gloo',
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port='29500',
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host='localhost'
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)
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mp.spawn(test_fn, nprocs=world_size)
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if __name__ == '__main__':
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test_2d_init()
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