The variables `DATA_PATH` and `RANK_SIZE` need to be transferred to the script, which indicate the path of the dataset and the number of devices, respectively.
The variables `DATA_PATH` and `RANK_SIZE` need to be transferred to the script, which indicate the path of the dataset and the number of devices, respectively.
The necessary environment variables are as follows:
The necessary environment variables are as follows:
-`MINDSPORE_HCCL_CONFIG_PATH`: path for storing the networking information file.
-`RANK_TABLE_FILE`: path for storing the networking information file.
-`DEVICE_ID`: actual sequence number of the current device on the corresponding host.
-`DEVICE_ID`: actual sequence number of the current device on the corresponding host.
-`RANK_ID`: logical sequence number of the current device.
-`RANK_ID`: logical sequence number of the current device.
For details about other environment variables, see configuration items in the installation guide.
For details about other environment variables, see configuration items in the installation guide.