ColossalAI/tests/test_device/test_search_logical_device_...

31 lines
1.1 KiB
Python

import pytest
from colossalai.device import AlphaBetaProfiler
from colossalai.initialize import launch
from colossalai.logging import disable_existing_loggers
from colossalai.testing import parameterize, rerun_if_address_is_in_use, spawn
def check_alpha_beta(rank, world_size, port, physical_devices):
disable_existing_loggers()
launch(config={}, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
profiler = AlphaBetaProfiler(physical_devices)
best_logical_mesh = profiler.search_best_logical_mesh()
if physical_devices == [0, 1, 2, 3]:
assert best_logical_mesh == [[0, 1], [2, 3]]
elif physical_devices == [0, 3]:
assert best_logical_mesh == [[0, 3]]
@pytest.mark.skip(reason="Skip because assertion may fail for CI devices")
@pytest.mark.dist
@parameterize('physical_devices', [[0, 1, 2, 3], [0, 3]])
@rerun_if_address_is_in_use()
def test_profile_alpha_beta(physical_devices):
spawn(check_alpha_beta, 4, physical_devices=physical_devices)
if __name__ == '__main__':
test_profile_alpha_beta()