Error about python3 -m alpa.test_install

1.ray start --head, Ray runtime started.
2.python3 -m alpa.test_install

2023-11-02 12:03:07,843	INFO worker.py:1342 -- Connecting to existing Ray cluster at address: xxx.xxx.xxx.xxx:6379...
2023-11-02 12:03:07,860	INFO worker.py:1528 -- Connected to Ray cluster.
(raylet) [2023-11-02 12:03:14,965 E 60772 60869] (raylet) file_system_monitor.cc:105: /tmp/ray/session_2023-11-02_12-01-53_160590_60560 is over 95% full, available space: 4389138432; capacity: 105089261568. Object creation will fail if spilling is required.
.
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FAIL: test_1_shard_parallel (__main__.InstallationTest)
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Traceback (most recent call last):
  File "/home/meng/.local/lib/python3.9/site-packages/alpa/test_install.py", line 30, in test_1_shard_parallel
    assert_allclose(expected_output, actual_output)
  File "/home/meng/.local/lib/python3.9/site-packages/alpa/testing.py", line 39, in assert_allclose
    assert_allclose(x_elt, y_elt, rtol, atol)
  File "/home/meng/.local/lib/python3.9/site-packages/alpa/testing.py", line 47, in assert_allclose
    assert_allclose(tree_leaves(x), tree_leaves(y), rtol, atol)
  File "/home/meng/.local/lib/python3.9/site-packages/alpa/testing.py", line 39, in assert_allclose
    assert_allclose(x_elt, y_elt, rtol, atol)
  File "/home/meng/.local/lib/python3.9/site-packages/alpa/testing.py", line 44, in assert_allclose
    np.testing.assert_allclose(x, y, rtol, atol)
  File "/home/meng/.local/lib/python3.9/site-packages/numpy/testing/_private/utils.py", line 1527, in assert_allclose
    assert_array_compare(compare, actual, desired, err_msg=str(err_msg),
  File "/home/meng/.local/lib/python3.9/site-packages/numpy/testing/_private/utils.py", line 844, in assert_array_compare
    raise AssertionError(msg)
AssertionError: 
Not equal to tolerance rtol=0.0001, atol=0.0001

Mismatched elements: 1 / 128 (0.781%)
Max absolute difference: 0.00010206
Max relative difference: 199.98827
 x: array([-3.015064e-05,  1.122657e-05, -3.322206e-05, -4.230777e-05,
       -4.951062e-05,  1.942161e-05,  2.563224e-06, -3.348007e-05,
        3.417588e-05,  8.472528e-06, -2.105583e-05, -6.395001e-05,...
 y: array([-3.295589e-05,  2.638681e-05, -3.106424e-05,  1.391097e-05,
       -3.518772e-06,  1.677411e-05,  3.178759e-06, -8.905632e-07,
        1.477203e-05,  9.330035e-06, -1.809136e-05, -2.332646e-05,...

----------------------------------------------------------------------
Ran 2 tests in 19.095s

FAILED (failures=1)

env:ubuntu20/python3.9/CUDA11.3/cudnn8.2.0