minimind/scripts/train_web_ui.py

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import os
import sys
import subprocess
import threading
import json
import socket
from flask import Flask, render_template, request, jsonify, redirect, url_for
import time
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
app = Flask(__name__, template_folder='templates', static_folder='static')
# 存储训练进程的信息
training_processes = {}
# 启动训练进程
def start_training_process(train_type, params):
# 获取脚本所在目录的绝对路径
script_dir = os.path.dirname(os.path.abspath(__file__))
# 使用详细的时间戳作为进程ID和日志文件名
process_id = time.strftime('%Y%m%d_%H%M%S')
# 构建logfile目录的绝对路径
log_dir = os.path.join(script_dir, '../logfile')
log_dir = os.path.abspath(log_dir)
log_file = os.path.join(log_dir, f"train_{train_type}_{process_id}.log")
# 确保日志目录存在
os.makedirs(log_dir, exist_ok=True)
# 构建命令
if train_type == 'pretrain':
script_path = '../trainer/train_pretrain.py'
cmd = [sys.executable, script_path]
if 'save_weight' in params:
cmd.extend(['--save_weight', params['save_weight']])
elif train_type == 'sft':
script_path = '../trainer/train_full_sft.py'
cmd = [sys.executable, script_path]
if 'save_weight' in params:
cmd.extend(['--save_weight', params['save_weight']])
elif train_type == 'lora':
script_path = '../trainer/train_lora.py'
cmd = [sys.executable, script_path]
if 'lora_name' in params:
cmd.extend(['--lora_name', params['lora_name']])
elif train_type == 'dpo':
script_path = '../trainer/train_dpo.py'
cmd = [sys.executable, script_path]
# 添加DPO特定参数
if 'beta' in params and params['beta']:
cmd.extend(['--beta', params['beta']])
if 'accumulation_steps' in params and params['accumulation_steps']:
cmd.extend(['--accumulation_steps', params['accumulation_steps']])
if 'grad_clip' in params and params['grad_clip']:
cmd.extend(['--grad_clip', params['grad_clip']])
else:
return None
# 添加通用参数
for key, value in params.items():
# 跳过特殊参数和DPO特有参数
if key in ['train_type', 'save_weight', 'lora_name', 'train_monitor', 'beta', 'accumulation_steps', 'grad_clip']:
continue
# 特殊处理布尔标志参数
if key == 'from_resume':
if value == '1': # 只有当值为1时才添加这个标志
cmd.append(f'--{key}')
else:
# 确保log_interval和save_interval参数正确传递
cmd.extend([f'--{key}', str(value)])
# 单独处理训练监控参数,确保它不会被错误地添加值
if 'train_monitor' in params:
if params['train_monitor'] == 'wandb' or params['train_monitor'] == 'swanlab':
cmd.append('--use_wandb') # 对于wandb和swanlab,只添加标志,不添加值
if params['train_monitor'] == 'wandb':
cmd.extend(['--wandb_project', 'minimind_training'])
# 创建日志文件
with open(log_file, 'w') as f:
f.write(f"开始训练 {train_type} 进程\n")
f.write(f"命令: {' '.join(cmd)}\n\n")
# 启动进程
process = subprocess.Popen(
cmd,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
cwd=os.path.dirname(os.path.abspath(__file__))
)
# 存储进程信息
training_processes[process_id] = {
'process': process,
'train_type': train_type,
'log_file': log_file,
'start_time': time.strftime('%Y-%m-%d %H:%M:%S'),
'running': True,
'error': False
}
# 开始读取输出
def read_output():
try:
while True:
output = process.stdout.readline()
if output == '' and process.poll() is not None:
break
if output:
with open(log_file, 'a') as f:
f.write(output)
# 检查进程是否成功结束
if process.returncode != 0:
training_processes[process_id]['error'] = True
finally:
training_processes[process_id]['running'] = False
# 启动线程读取输出
threading.Thread(target=read_output, daemon=True).start()
return process_id
# Flask路由
@app.route('/')
def index():
return render_template('index.html')
@app.route('/train', methods=['POST'])
def train():
data = request.json
train_type = data.get('train_type')
# 移除不相关的参数
params = data.copy()
# 处理复选框参数
if 'from_resume' not in params:
params['from_resume'] = '0'
# 启动训练进程
process_id = start_training_process(train_type, params)
if process_id:
return jsonify({'success': True, 'process_id': process_id})
else:
return jsonify({'success': False, 'error': '无效的训练类型'})
@app.route('/processes')
def processes():
result = []
for process_id, info in training_processes.items():
# 确定状态
status = '运行中' if info['running'] else \
'手动停止' if 'manually_stopped' in info and info['manually_stopped'] else \
'出错' if info['error'] else '已完成'
result.append({
'id': process_id,
'train_type': info['train_type'],
'start_time': info['start_time'],
'running': info['running'],
'error': info['error'],
'status': status
})
return jsonify(result)
@app.route('/logs/<process_id>')
def logs(process_id):
# 直接从本地logfile目录读取日志文件
# 获取脚本所在目录的绝对路径
script_dir = os.path.dirname(os.path.abspath(__file__))
# 构建logfile目录的绝对路径
log_dir = os.path.join(script_dir, '../logfile')
log_dir = os.path.abspath(log_dir)
if os.path.exists(log_dir):
for filename in os.listdir(log_dir):
if filename.endswith(f'{process_id}.log'):
log_file = os.path.join(log_dir, filename)
if os.path.exists(log_file):
try:
with open(log_file, 'r', encoding='utf-8') as f:
# 只读取最后200行
lines = f.readlines()
last_200_lines = lines[-200:] if len(lines) > 200 else lines
return ''.join(last_200_lines)
except Exception as e:
return f'读取日志失败: {str(e)}'
return '日志文件不存在或已被删除'
@app.route('/logfiles')
def get_logfiles():
# 获取脚本所在目录的绝对路径
script_dir = os.path.dirname(os.path.abspath(__file__))
# 构建logfile目录的绝对路径
log_dir = os.path.join(script_dir, '../logfile')
log_dir = os.path.abspath(log_dir)
logfiles = []
if os.path.exists(log_dir):
for filename in os.listdir(log_dir):
if filename.endswith('.log') and filename.startswith('train_'):
file_path = os.path.join(log_dir, filename)
try:
modified_time = os.path.getmtime(file_path)
formatted_time = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(modified_time))
logfiles.append({
'filename': filename,
'modified_time': formatted_time,
'size': os.path.getsize(file_path)
})
except Exception as e:
continue
# 按修改时间倒序排序,最新的在前面
logfiles.sort(key=lambda x: x['modified_time'], reverse=True)
return jsonify(logfiles)
@app.route('/logfile-content/<filename>')
def get_logfile_content(filename):
# 获取脚本所在目录的绝对路径
script_dir = os.path.dirname(os.path.abspath(__file__))
# 构建logfile目录的绝对路径
log_dir = os.path.join(script_dir, '../logfile')
log_dir = os.path.abspath(log_dir)
# 安全检查:防止路径遍历攻击
if '..' in filename or '/' in filename or '\\' in filename:
return '非法的文件名'
log_file = os.path.join(log_dir, filename)
if os.path.exists(log_file) and os.path.isfile(log_file):
try:
with open(log_file, 'r', encoding='utf-8') as f:
return f.read()
except Exception as e:
return f'读取日志失败: {str(e)}'
return '日志文件不存在'
@app.route('/delete-logfile/<filename>', methods=['DELETE'])
def delete_logfile(filename):
# 获取脚本所在目录的绝对路径
script_dir = os.path.dirname(os.path.abspath(__file__))
# 构建logfile目录的绝对路径
log_dir = os.path.join(script_dir, '../logfile')
log_dir = os.path.abspath(log_dir)
# 安全检查:防止路径遍历攻击
if '..' in filename or '/' in filename or '\\' in filename:
return jsonify({'success': False, 'message': '非法的文件名'})
log_file = os.path.join(log_dir, filename)
if os.path.exists(log_file) and os.path.isfile(log_file):
try:
os.remove(log_file)
return jsonify({'success': True, 'message': '日志文件删除成功'})
except Exception as e:
print(f"删除日志文件失败: {str(e)}")
return jsonify({'success': False, 'message': f'删除失败: {str(e)}'})
return jsonify({'success': False, 'message': '日志文件不存在'})
@app.route('/stop/<process_id>', methods=['POST'])
def stop(process_id):
if process_id in training_processes and training_processes[process_id]['running']:
process = training_processes[process_id]['process']
# 在Windows上使用terminate,在Unix上尝试优雅终止
try:
process.terminate()
# 等待进程结束
process.wait(timeout=5)
# 标记为手动停止
training_processes[process_id]['running'] = False
training_processes[process_id]['manually_stopped'] = True
except subprocess.TimeoutExpired:
# 如果超时,强制杀死
process.kill()
# 标记为手动停止
training_processes[process_id]['running'] = False
training_processes[process_id]['manually_stopped'] = True
return jsonify({'success': True})
return jsonify({'success': False})
@app.route('/delete/<process_id>', methods=['POST'])
def delete(process_id):
if process_id in training_processes:
# 确保进程已经停止
if training_processes[process_id]['running']:
# 如果进程还在运行,先停止它
try:
process = training_processes[process_id]['process']
process.terminate()
try:
process.wait(timeout=3)
except subprocess.TimeoutExpired:
process.kill()
except Exception as e:
print(f"停止进程失败: {str(e)}")
# 从进程字典中删除
del training_processes[process_id]
# 可选:删除对应的日志文件
try:
script_dir = os.path.dirname(os.path.abspath(__file__))
log_dir = os.path.join(script_dir, '../logfile')
log_dir = os.path.abspath(log_dir)
if os.path.exists(log_dir):
for filename in os.listdir(log_dir):
if filename.endswith(f'{process_id}.log'):
os.remove(os.path.join(log_dir, filename))
except Exception as e:
print(f"删除日志文件失败: {str(e)}")
return jsonify({'success': True})
return jsonify({'success': False})
def find_available_port(start_port=5000, max_attempts=100):
"""查找可用的端口号
Args:
start_port: 起始端口号
max_attempts: 最大尝试次数
Returns:
可用的端口号,如果没有找到则返回None
"""
for port in range(start_port, start_port + max_attempts):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
result = sock.connect_ex(('localhost', port))
sock.close()
if result != 0: # 端口可用
return port
return None
if __name__ == '__main__':
# 尝试使用默认端口5000,如果被占用则自动寻找可用端口
port = find_available_port(5000)
if port is not None:
print(f"启动Flask服务器在 http://0.0.0.0:{port}")
# 使用0.0.0.0作为host以兼容VSCode的端口转发功能
app.run(host='0.0.0.0', port=port, debug=True)
else:
print("无法找到可用的端口,请检查系统端口占用情况")
sys.exit(1)