import ray
ray.init(address='auto')

@ray.remote(num_cpus=0.01)
def force_cleanup():
    import subprocess, socket, time
    hostname = socket.gethostname()
    
    # 强制 kill 所有相关进程
    subprocess.run("pkill -9 -f torchrun",     shell=True)
    subprocess.run("pkill -9 -f redaccel-cli", shell=True)
    subprocess.run("pkill -9 -f launcher.py",  shell=True)
    
    time.sleep(2)  # 等进程彻底退出
    
    # 验证
    s = socket.socket()
    used = s.connect_ex(('127.0.0.1', 29500)) == 0
    s.close()
    
    return f"{hostname}: {'🔴 仍占用！' if used else '🟢 已清理'}"

nodes = [n for n in ray.nodes() if n['Alive']]
# 每个节点提交2个任务，确保覆盖到
futures = [force_cleanup.remote() for _ in range(len(nodes) * 2)]
for r in set(ray.get(futures)):
    print(r)