mindspore/model_zoo/utils/hccl_tools/README.md

# description

MindSpore distributed training launch helper utilty that will generate hccl config file.

# use

```
python hccl_tools.py --device_num "[0,8)"
```

output:
```
hccl_[device_num]p_[which device]_[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.