BUG: nvutils GPU error

[luweizheng]

python/xorbits/_mars/lib/tests/test_nvutils.py

    @require_cupy
    def test_nvutil():
        device_info = nvutils.get_device_info(0)
        assert device_info.uuid is not None

        # run something
        _ = cupy.ones(10)

        handle = nvutils.get_handle_by_index(0)
>       assert nvutils._running_process_matches(handle)
E       assert False
E        +  where False = <function _running_process_matches at 0x7d201ef0e700>(<xorbits._mars.lib.nvutils.LP__struct_nvmlDevice_t object at 0x7d1d6a05fc50>)
E        +    where <function _running_process_matches at 0x7d201ef0e700> = nvutils._running_process_matches