IPMI shows that I have two CPUs in separate sockets, but only one is available to Ubuntu 22.04. What should I try?
$ cat /etc/lsb-releaseDISTRIB_ID=UbuntuDISTRIB_RELEASE=22.04DISTRIB_CODENAME=jammyDISTRIB_DESCRIPTION="Ubuntu 22.04.5 LTS"$ lscpuArchitecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 52 bits physical, 57 bits virtual Byte Order: Little EndianCPU(s): 128 On-line CPU(s) list: 0-127Vendor ID: AuthenticAMD Model name: AMD EPYC 9754 128-Core Processor CPU family: 25 Model: 160 Thread(s) per core: 1 Core(s) per socket: 128 Socket(s): 1 Stepping: 2 BogoMIPS: 4492.83 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse s se2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good amd_lbr_v2 nopl nons top_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse 4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy ab m sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpex t perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba perfmon_v2 ibrs ibpb stibp ibrs_enha nced vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx s map avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsave s cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local user_shstk avx512_bf16 clzero irperf xsave erptr rdpru wbnoinvd amd_ppin cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flush byasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif x2avic v_spec_ctrl vnmi avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_ vpopcntdq la57 rdpid overflow_recov succor smca fsrm flush_l1d debug_swapVirtualization features: Virtualization: AMD-VCaches (sum of all): L1d: 4 MiB (128 instances) L1i: 4 MiB (128 instances) L2: 128 MiB (128 instances) L3: 256 MiB (16 instances)NUMA: NUMA node(s): 2 NUMA node0 CPU(s): 0-127 NUMA node1 CPU(s):Vulnerabilities: Gather data sampling: Not affected Itlb multihit: Not affected L1tf: Not affected Mds: Not affected Meltdown: Not affected Mmio stale data: Not affected Reg file data sampling: Not affected Retbleed: Not affected Spec rstack overflow: Mitigation; Safe RET Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Spectre v2: Mitigation; Enhanced / Automatic IBRS; IBPB conditional; STIBP disabled; RSB filling; PBRSB-eI BRS Not affected; BHI Not affected Srbds: Not affected Tsx async abort: Not affected$ sudo journalctl -k | grep CPU11月 04 14:34:17 kernel: ACPI: SSDT 0x00000000A49D2000 001E2D (v02 AMD CPUSSDT 03042021 AMI 03042021)11月 04 14:34:17 kernel: smpboot: Allowing 255 CPUs, 0 hotplug CPUs11月 04 14:34:17 kernel: setup_percpu: NR_CPUS:8192 nr_cpumask_bits:255 nr_cpu_ids:255 nr_node_ids:211月 04 14:34:17 kernel: SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=255, Nodes=211月 04 14:34:17 kernel: rcu: RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=255.11月 04 14:34:17 kernel: smpboot: CPU0: AMD EPYC 9754 128-Core Processor (family: 0x19, model: 0xa0, stepping: 0x2)11月 04 14:34:17 kernel: smp: Bringing up secondary CPUs ...11月 04 14:34:17 kernel: .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 #23 #24 #25 #26 #27 #28 #29 #30 #31 #32 #33 #34 #35 #36 #37 #38 #39 #40 #41 #42 #43 #44 #45 #46 #47 #48 #49 #50 #51 #52 #53 #54 #55 #56 #57 #58 #59 #60 #61 #62 #63 #64 #65 #66 #67 #68 #69 #70 #71 #72 #73 #74 #75 #76 #77 #78 #79 #80 #81 #82 #83 #84 #85 #86 #87 #88 #89 #90 #91 #92 #93 #94 #95 #96 #97 #98 #99 #100 #101 #102 #103 #104 #105 #106 #107 #108 #109 #110 #111 #112 #113 #114 #115 #116 #117 #118 #119 #120 #121 #122 #123 #124 #125 #126 #12711月 04 14:34:17 kernel: smp: Brought up 2 nodes, 128 CPUs11月 04 14:34:17 kernel: ACPI: _OSC evaluation for CPUs failed, trying _PDC11月 04 14:34:17 kernel: ledtrig-cpu: registered to indicate activity on CPUs$ numactl -spolicy: defaultpreferred node: currentphyscpubind: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127cpubind: 0nodebind: 0membind: 0 1$ sudo lshw -c processor *-cpu:0 description: CPU product: AMD EPYC 9754 128-Core Processor vendor: Advanced Micro Devices [AMD] physical id: 3b bus info: cpu@0 version: 25.160.2 serial: Unknown slot: P0 size: 2250MHz capacity: 3100MHz width: 64 bits clock: 100MHz capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp x86-64 constant_tsc rep_good amd_lbr_v2 nopl nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba perfmon_v2 ibrs ibpb stibp ibrs_enhanced vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local user_shstk avx512_bf16 clzero irperf xsaveerptr rdpru wbnoinvd amd_ppin cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif x2avic v_spec_ctrl vnmi avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq la57 rdpid overflow_recov succor smca fsrm flush_l1d debug_swap configuration: cores=128 enabledcores=128 microcode=178258453 threads=256 *-cpu:1 description: CPU product: Zen (Unknown) vendor: Advanced Micro Devices, Inc. physical id: 40 bus info: cpu@1 version: AMD EPYC 9754 128-Core Processor serial: Unknown slot: P1 size: 2250MHz capacity: 3100MHz clock: 100MHz capabilities: lm configuration: cores=128 enabledcores=128 threads=256