May 19 11:33:12 swcentos7-rte kernel: Unable to map lapic to logical cpu number May 19 11:33:12 swcentos7-rte kernel: ACPI: NR_CPUS/possible_cpus limit of 1 reached.

May 19 11:33:12 swcentos7-rte kernel: NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.

May 19 11:33:12 swcentos7-rte kernel: smpboot: Total of 1 processors activated (5193.97 BogoMIPS) May 19 11:33:12 swcentos7-rte kernel: #011Offload RCU callbacks from CPUs: 0-31. May 19 11:33:12 swcentos7-rte kernel: #011Offload RCU callbacks from all CPUs May 19 11:33:12 swcentos7-rte kernel: #011RCU restricting CPUs from NR_CPUS=32 to nr_cpu_ids=1. May 19 11:33:12 swcentos7-rte kernel: Hierarchical RCU implementation. The following messages are from the /var/log/messages file: I installed the CentOS-7-i386-Everything-1511, but when I reboot the system, it is only showing one CPU, the machine is a HP ProLiant D元80 Gen9 server, which has a Intel(R) Xeon(R) CPU E5-2640 v3 2.60GHz processor, and has 8 cores, and hyper-threading is enabled in the BIOS, so the OS should see total of 16 CPUs, but it is only showing one CPU.

Centos 7 x86_64