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# Description
MindSpore distributed training launch helper utility that will generate hccl config file.
## Usage
```python
pythonhccl_tools.py--device_num"[0,8)"
```
output:
```python
hccl_[device_num]p_[whichdevice]_[server_ip].json
```
## Note
Please note that the Ascend accelerators used must be continuous, such [0,4) means to use four chips 0，1，2，3; [0,1) means to use chip 0; The first four chips are a group, and the last four chips are a group. In addition to the [0,8) chips are allowed, other cross-group such as [3,6) are prohibited.
