import requests

for ip in ["140.44.4.81", "140.44.4.82", "140.44.4.83", "140.44.4.84"]:
    try:
        r = requests.get(f"http://{ip}:9400/metrics", timeout=3)
        print(f"=== {ip}:9400 -> HTTP {r.status_code}, len={len(r.text)} ===")
        gpu_metrics = [line for line in r.text.split('\n') if 'DCGM_FI_DEV_GPU_UTIL' in line or 'DCGM_FI_DEV_FB_USED' in line or 'DCGM_FI_DEV_GPU_TEMP' in line]
        for m in gpu_metrics[:3]:
            print("  ", m)
    except Exception as e:
        print(f"{ip}:9400 -> error: {e}")