请问4090*4的工作站无法开启多卡训练怎么处理呢？根据之前的Issues改了一部分代码，仍然不能正常启用四张卡

`Traceback (most recent call last):
File "/home/ubuntu/code/lora-scripts/./sd-scripts/train_db.py", line 529, in
train(args)
File "/home/ubuntu/code/lora-scripts/./sd-scripts/train_db.py", line 343, in train
encoder_hidden_states = train_util.get_hidden_states(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/sd-scripts/library/train_util.py", line 4428, in get_hidden_states
encoder_hidden_states = text_encoder.text_model.final_layer_norm(encoder_hidden_states)
^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1688, in __getattr__
raise AttributeError(f"'{type(self).__name__}' object has no attribute '{name}'")
AttributeError: 'DistributedDataParallel' object has no attribute 'text_model'
Traceback (most recent call last):
File "/home/ubuntu/code/lora-scripts/./sd-scripts/train_db.py", line 529, in
train(args)
File "/home/ubuntu/code/lora-scripts/./sd-scripts/train_db.py", line 343, in train
encoder_hidden_states = train_util.get_hidden_states(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/sd-scripts/library/train_util.py", line 4428, in get_hidden_states
encoder_hidden_states = text_encoder.text_model.final_layer_norm(encoder_hidden_states)
^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1688, in __getattr__
raise AttributeError(f"'{type(self).__name__}' object has no attribute '{name}'")
AttributeError: 'DistributedDataParallel' object has no attribute 'text_model'
Traceback (most recent call last):
File "/home/ubuntu/code/lora-scripts/./sd-scripts/train_db.py", line 529, in
train(args)
File "/home/ubuntu/code/lora-scripts/./sd-scripts/train_db.py", line 343, in train
encoder_hidden_states = train_util.get_hidden_states(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/sd-scripts/library/train_util.py", line 4428, in get_hidden_states
encoder_hidden_states = text_encoder.text_model.final_layer_norm(encoder_hidden_states)
^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1688, in __getattr__
raise AttributeError(f"'{type(self).__name__}' object has no attribute '{name}'")
AttributeError: 'DistributedDataParallel' object has no attribute 'text_model'
Traceback (most recent call last):
File "/home/ubuntu/code/lora-scripts/./sd-scripts/train_db.py", line 529, in
train(args)
File "/home/ubuntu/code/lora-scripts/./sd-scripts/train_db.py", line 343, in train
encoder_hidden_states = train_util.get_hidden_states(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/sd-scripts/library/train_util.py", line 4428, in get_hidden_states
encoder_hidden_states = text_encoder.text_model.final_layer_norm(encoder_hidden_states)
^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/torch/nn/modules/module.py", line 1688, in __getattr__
raise AttributeError(f"'{type(self).__name__}' object has no attribute '{name}'")
AttributeError: 'DistributedDataParallel' object has no attribute 'text_model'
steps: 0%| | 0/400384 [00:01", line 198, in _run_module_as_main
File "", line 88, in _run_code
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/accelerate/commands/launch.py", line 1027, in
main()
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/accelerate/commands/launch.py", line 1023, in main
launch_command(args)
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/accelerate/commands/launch.py", line 1008, in launch_command
multi_gpu_launcher(args)
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/accelerate/commands/launch.py", line 666, in multi_gpu_launcher
distrib_run.run(args)
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/torch/distributed/run.py", line 803, in run
elastic_launch(
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/torch/distributed/launcher/api.py", line 135, in __call__
return launch_agent(self._config, self._entrypoint, list(args))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ubuntu/code/lora-scripts/venv/lib/python3.11/site-packages/torch/distributed/launcher/api.py", line 268, in launch_agent
raise ChildFailedError(
torch.distributed.elastic.multiprocessing.errors.ChildFailedError:
============================================================
./sd-scripts/train_db.py FAILED
------------------------------------------------------------
Failures:
[1]:
time : 2024-07-01_17:02:53
host : ubun
rank : 1 (local_rank: 1)
exitcode : 1 (pid: 1151724)
error_file:
traceback : To enable traceback see: https://pytorch.org/docs/stable/elastic/errors.html
[2]:
time : 2024-07-01_17:02:53
host : ubun
rank : 2 (local_rank: 2)
exitcode : 1 (pid: 1151725)
error_file:
traceback : To enable traceback see: https://pytorch.org/docs/stable/elastic/errors.html
[3]:
time : 2024-07-01_17:02:53
host : ubun
rank : 3 (local_rank: 3)
exitcode : 1 (pid: 1151727)
error_file:
traceback : To enable traceback see: https://pytorch.org/docs/stable/elastic/errors.html
------------------------------------------------------------
Root Cause (first observed failure):
[0]:
time : 2024-07-01_17:02:53
host : ubun
rank : 0 (local_rank: 0)
exitcode : 1 (pid: 1151723)
error_file:
traceback : To enable traceback see: https://pytorch.org/docs/stable/elastic/errors.html
============================================================
17:02:54-224225 ERROR Training failed / 训练失败`

以上是报错