linux服务器配置32CPU只显示16CPU在线

lscpu 查看到部分CPU不在线
On-line：在线的CPU
Off-line：不在线的CPU

echo 0 > /sys/devices/system/cpu/cpuX/online
//cpuX的X代表cpu号，在online文件里描述cpu的状态，0代表下线，1代表上线
cat /sys/devices/system/cpu/online
//查看当前所有上线的CPU

echo 1 > /sys/devices/system/cpu/cpu51/online
echo 1 > /sys/devices/system/cpu/cpu52/online
echo 1 > /sys/devices/system/cpu/cpu53/online
echo 1 > /sys/devices/system/cpu/cpu54/online
echo 1 > /sys/devices/system/cpu/cpu55/online
echo 1 > /sys/devices/system/cpu/cpu56/online
echo 1 > /sys/devices/system/cpu/cpu57/online
echo 1 > /sys/devices/system/cpu/cpu58/online
echo 1 > /sys/devices/system/cpu/cpu59/online
echo 1 > /sys/devices/system/cpu/cpu60/online
echo 1 > /sys/devices/system/cpu/cpu61/online
echo 1 > /sys/devices/system/cpu/cpu62/online
echo 1 > /sys/devices/system/cpu/cpu63/online