mirror of
https://github.com/hpcaitech/ColossalAI.git
synced 2025-05-06 15:38:26 +00:00
d202cc28c0
* update accelerator * fix timer * fix amp * update * fix * update bug * add error raise * fix autocast * fix set device * remove doc accelerator * update doc * update doc * update doc * use nullcontext * update cpu * update null context * change time limit for example * udpate * update * update * update * [npu] polish accelerator code --------- Co-authored-by: Xuanlei Zhao <xuanlei.zhao@gmail.com> Co-authored-by: zxl <43881818+oahzxl@users.noreply.github.com>
29 lines
971 B
Python
29 lines
971 B
Python
import pytest
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import colossalai
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from colossalai.accelerator import get_accelerator
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from colossalai.legacy.utils.memory import colo_device_memory_capacity, colo_set_process_memory_fraction
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from colossalai.testing import spawn
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def _run_colo_set_process_memory_fraction_and_colo_device_memory_capacity():
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frac1 = colo_device_memory_capacity(get_accelerator().get_current_device())
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colo_set_process_memory_fraction(0.5)
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frac2 = colo_device_memory_capacity(get_accelerator().get_current_device())
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assert frac2 * 2 == frac1
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def run_dist(rank, world_size, port):
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colossalai.legacy.launch(config={}, rank=rank, world_size=world_size, host="localhost", port=port, backend="nccl")
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_run_colo_set_process_memory_fraction_and_colo_device_memory_capacity()
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@pytest.mark.dist
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@pytest.mark.parametrize("world_size", [3, 4])
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def test_memory_utils(world_size):
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spawn(run_dist, world_size)
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if __name__ == "__main__":
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test_memory_utils(world_size=2)
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