[MS] When device ip change, training 8p failed, the log didn't show the deatil

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| Bug Report | Use this template for reporting a bug | kind/bug |

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## Environment
- **Hardware Environment(`Ascend`/`GPU`/`CPU`)**: 
> Uncomment only one ` /device <>` line, hit enter to put that in a new line, and remove leading whitespaces from that line:
>
> /device ascend

- **Software Environment**:
-- MindSpore version (source or binary):mindspore master branch 20201205, commit_id=a13f9acb， run包版本：HISI_C76/20201128
-- Python version (e.g., Python 3.7.5):
-- OS platform and distribution (e.g., Linux Ubuntu 16.04):
-- GCC/Compiler version (if compiled from source):

## Related testcase
ms_dfr_fault_run_train_029
## Steps to reproduce the issue
1. 修改device0的IP
2. 跑model_zoo中Resnet50的八卡训练脚本
3.

## Describe the current behavior
device的ip发生变化后，报错提示init_hccl:Init plugin so failed，没有显示具体原因
## Describe the expected behavior
有具体的报错提示
## Related log / screenshot
![输入图片说明](https://images.gitee.com/uploads/images/2020/1209/175029_35fe016d_6567552.png "ipchange.PNG")
## Special notes for this issue
device的ip发生变化后，训练报错提示不清晰

GVP MindSpore/mindspore

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GVPMindSpore/mindspore

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