forked from mindspore-Ecosystem/mindspore
!2808 add_hccl_tools
Merge pull request !2808 from Guomenghao319/add_hccl_tools
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# description
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mindspore distributed training launch helper utilty that will generate hccl config file.
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# use
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```
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python hccl_tools.py --device_num [1,8]
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```
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output:
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```
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hccl_[device_num]p_[which device]_[server_ip].json
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```
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# Copyright 2020 Huawei Technologies Co., Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ============================================================================
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"""generate hccl config file script"""
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import os
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import sys
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import json
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import socket
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import platform
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from argparse import ArgumentParser
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from typing import Dict, Any
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def parse_args():
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"""
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parse args .
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Args:
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Returns:
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args.
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Examples:
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>>> parse_args()
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"""
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parser = ArgumentParser(description="mindspore distributed training launch "
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"helper utilty that will generate hccl"
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" config file")
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parser.add_argument("--device_num", type=str, default="[0,8]",
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help="The number of the D chip used. please note that the D chips"
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"used must be continuous, such [0,4] means to use four chips "
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"0，1，2，3; [0,1] means to use chip 0; The first four chips are"
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"a group, and the last four chips are a group. In addition to"
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"the [0,8] chips are allowed, other cross-group such as [3,6]"
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"are prohibited.")
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parser.add_argument("--visible_devices", type=str, default="0,1,2,3,4,5,6,7",
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help="will use the visible devices sequentially")
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parser.add_argument("--server_ip", type=str, default="",
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help="server ip")
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args = parser.parse_args()
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return args
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def get_host_ip():
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"""
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get host ip
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"""
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ip = None
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try:
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hostname = socket.gethostname()
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ip = socket.gethostbyname(hostname)
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except EOFError:
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pass
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return ip
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def main():
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print("start", __file__)
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args = parse_args()
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# visible_devices
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visible_devices = args.visible_devices.split(',')
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print('visible_devices:{}'.format(visible_devices))
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# server_id
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ip = get_host_ip()
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if args.server_ip:
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server_id = args.server_ip
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elif ip:
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server_id = ip
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else:
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raise ValueError("please input server ip!")
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print('server_id:{}'.format(server_id))
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# device_num
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first_num = int(args.device_num[1])
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last_num = int(args.device_num[3])
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if first_num < 0 or last_num > 8:
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raise ValueError("device num {} must be in range [0,8] !".format(args.device_num))
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if first_num > last_num:
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raise ValueError("First num {} of device num {} must less than last num {} !".format(first_num, args.device_num,
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last_num))
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if first_num < 4:
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if last_num > 4:
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if first_num == 0 and last_num == 8:
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pass
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else:
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raise ValueError("device num {} must be in the same group of [0,4] or [4,8] !".format(args.device_num))
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device_num_list = list(range(first_num, last_num))
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print("device_num_list:", device_num_list)
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assert len(visible_devices) >= len(device_num_list)
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# construct hccn_table
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device_ips: Dict[Any, Any] = {}
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with open('/etc/hccn.conf', 'r') as fin:
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for hccn_item in fin.readlines():
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if hccn_item.strip().startswith('address_'):
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device_id, device_ip = hccn_item.split('=')
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device_id = device_id.split('_')[1]
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device_ips[device_id] = device_ip.strip()
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arch = platform.processor()
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hccn_table = {'board_id': {'aarch64': '0x002f', 'x86_64': '0x0000'}[arch],
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'chip_info': '910',
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'deploy_mode': 'lab',
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'group_count': '1',
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'group_list': []}
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instance_list = []
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rank_id = 0
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for instance_id in device_num_list:
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instance = {'devices': []}
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device_id = visible_devices[instance_id]
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device_ip = device_ips[device_id]
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instance['devices'].append({
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'device_id': device_id,
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'device_ip': device_ip,
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})
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print('rank_id:{}, device_id:{}, device_ip:{}'.format(rank_id, device_id, device_ip))
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instance['rank_id'] = str(rank_id)
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rank_id += 1
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instance['server_id'] = server_id
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instance_list.append(instance)
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hccn_table['group_list'].append({
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'device_num': str(len(device_num_list)),
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'server_num': '1',
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'group_name': '',
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'instance_count': str(len(device_num_list)),
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'instance_list': instance_list,
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})
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hccn_table['para_plane_nic_location'] = 'device'
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hccn_table['para_plane_nic_name'] = []
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for instance_id in device_num_list:
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eth_id = visible_devices[instance_id]
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hccn_table['para_plane_nic_name'].append('eth{}'.format(eth_id))
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hccn_table['para_plane_nic_num'] = str(len(device_num_list))
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hccn_table['status'] = 'completed'
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# save hccn_table to file
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table_path = os.getcwd()
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table_fn = os.path.join(table_path,
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'hccl_{}p_{}_{}.json'.format(len(device_num_list), "".join(map(str, device_num_list)),
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server_id))
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with open(table_fn, 'w') as table_fp:
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json.dump(hccn_table, table_fp, indent=4)
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sys.stdout.flush()
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print("Completed: hccl file was save in :", table_fn)
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if __name__ == "__main__":
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main()
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