add hccl_tools

Signed-off-by: NGuoMengHao <guomenghao@huawei.com>

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 [1,8]
+```
+
+output:
+```
+hccl_[device_num]p_[which device]_[server_ip].json
+```
\ No newline at end of file

model_zoo/utils/hccl_tools/hccl_tools.py

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