When i was training ，it reported a errror from cmd, help me ! i can see that the dataloader loaded any dataset .

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4/03 17:35:08 pysgg]: #################### end dataloader ####################
[04/03 17:35:08 pysgg]: #################### prepare training ####################
ERROR:torch.distributed.elastic.multiprocessing.api:failed (exitcode: -9) local_rank: 0 (pid: 12926) of binary: /devdata/conda_envs/SSG1/bin/python
ERROR:torch.distributed.elastic.agent.server.local_elastic_agent:[default] Worker group failed
INFO:torch.distributed.elastic.agent.server.api:[default] Worker group FAILED. 2/3 attempts left; will restart worker group
INFO:torch.distributed.elastic.agent.server.api:[default] Stopping worker group
INFO:torch.distributed.elastic.agent.server.api:[default] Rendezvous'ing worker group
INFO:torch.distributed.elastic.agent.server.api:[default] Rendezvous complete for workers. Result:
restart_count=2
master_addr=127.0.0.1
master_port=10028
group_rank=0
group_world_size=1
local_ranks=[0]
role_ranks=[0]
global_ranks=[0]
role_world_sizes=[1]
global_world_sizes=[1]

INFO:torch.distributed.elastic.agent.server.api:[default] Starting worker group
INFO:torch.distributed.elastic.multiprocessing:Setting worker0 reply file to: /tmp/torchelastic_kmwb3_ux/none_ef9707bo/attempt_2/0/error.json
[04/03 17:36:12 pysgg]: Using 1 GPUs