Hi,

virsh -r nodeinfo

CPU model: x86_64

CPU(s): 112

CPU frequency: 4000 MHz

CPU socket(s): 1

[Konstantin] Actually this is not a fault, because of NUMA cells: 2

Core(s) per socket: 28

Thread(s) per core: 2

NUMA cell(s): 2

Memory size: 4144275952 KiB

Same for ‘capabilities’, below doesn’t seem faulty:

<topology sockets='1' dies='1' cores='28' threads='2'/>

<cells num='2'>

vdsm-client Host getCapabilities

"numaNodes": {

"0": {

"cpus": [

[Konstantin] Fault because there is no numaNodes: { 1 …

And it is interesting that CPUs start with 56 for numaNode 0 (compare it with NUMA node0 CPU(s) of lscpu)

"cpuSockets": "1",

Fault: "cpuSockets": "1" and not "cpuSockets": "2"

However "cpuThreads": "112" and list in "onlineCpus": is correct.

BR,

Konstantin

Von: Jorge Visentini <jorgevisentini@gmail.com>
Datum: Mittwoch, 28. Juni 2023 um 15:37
An: "Volenbovskyi, Konstantin" <Konstantin.Volenbovskyi@haufe.com>
Cc: Dean L <dean@datacom.ca>, "users@ovirt.org" <users@ovirt.org>
Betreff: Re: [ovirt-users] Re: Processors compatibility matrix oVirt

Hi, Konstantin.

Thank you for the fast reply.

On oVirt... New Virtual Machine -> Host -> Configure NUMA is currently disabled but I still don't understand why oVirt doesn't identify the 2 sockets.

I'll do some more research and install version 4.5. I am currently using version 4.4.10.

Below are the output of the commands:

virsh -r nodeinfo

CPU model: x86_64

CPU(s): 112

CPU frequency: 4000 MHz

CPU socket(s): 1

Core(s) per socket: 28

Thread(s) per core: 2

NUMA cell(s): 2

Memory size: 4144275952 KiB

virsh -r capabilities

<cpu>

<arch>x86_64</arch>

<model>Cascadelake-Server-noTSX</model>

<vendor>Intel</vendor>

<microcode version='83899138'/>

<counter name='tsc' frequency='2199999000' scaling='yes'/>

<topology sockets='1' dies='1' cores='28' threads='2'/>

<topology>

<cells num='2'>

<cell id='0'>

<memory unit='KiB'>4144275952</memory>

<cpus num='56'>

vdsm-client Host getCapabilities

"cpuCores": "56",

"cpuFlags": "ds_cpl,epb,aperfmperf,xsaveopt,cx8,cat_l3,smx,x2apic,invpcid_single,mmx,rdseed,est,sse4_2,clwb,umip,apic,ss,ida,pbe,xsavec,sdbg,mca,bmi1,pat,tsc_deadline_timer,sep,lahf_lm,avx,cqm_mbm_local,sse2,hypervisor,pku,sse,ibrs_enhanced,md_clear,nx,aes,msr,invpcid,rep_good,avx2,fxsr,pse36,amd-ssbd,de,ssbd,tsc_adjust,cqm,pae,avx512f,bts,vmx,rdctl-no,dtes64,lm,ospke,fma,mtrr,pdpe1gb,pcid,acpi,movbe,nonstop_tsc,pln,xsaves,amd-stibp,pschange-mc-no,avx512dq,ht,pdcm,cpuid_fault,smep,3dnowprefetch,tsc,avx512vl,xtopology,skip-l1dfl-vmentry,pebs,intel_ppin,flush_l1d,art,popcnt,abm,monitor,arch-capabilities,cpuid,fsgsbase,rdt_a,syscall,bmi2,ssse3,stibp,tsx-ctrl,smap,constant_tsc,sse4_1,erms,cmov,pge,xsave,cx16,ibpb,avx512_vnni,vme,arch_capabilities,nopl,cdp_l3,tm2,dca,invtsc,cqm_mbm_total,rdtscp,xgetbv1,rdrand,adx,cqm_llc,tpr_shadow,pclmulqdq,ept,xtpr,vpid,avx512bw,cqm_occup_llc,ept_ad,pts,mba,pse,tm,dts,clflush,mce,intel_pt,f16c,clflushopt,ibrs-all,arch_perfmon,avx512cd,ibrs,md-clear,mds-no,arat,dtherm,fpu,pni,mpx,vnmi,flexpriority,spec_ctrl,model_SandyBridge-IBRS,model_Nehalem-IBRS,model_Opteron_G2,model_Westmere,model_Skylake-Client-noTSX-IBRS,model_Conroe,model_coreduo,model_qemu64,model_IvyBridge-IBRS,model_Skylake-Server-noTSX-IBRS,model_kvm32,model_pentium3,model_pentium,model_Westmere-IBRS,model_SandyBridge,model_Nehalem,model_Penryn,model_kvm64,model_Haswell-noTSX,model_486,model_Cascadelake-Server-noTSX,model_Opteron_G1,model_core2duo,model_pentium2,model_IvyBridge,model_Broadwell-noTSX-IBRS,model_qemu32,model_n270,model_Haswell-noTSX-IBRS,model_Broadwell-noTSX",

"cpuModel": "Intel(R) Xeon(R) Platinum 8276M CPU @ 2.20GHz",

"cpuSockets": "1",

"cpuSpeed": "4000.000",

"cpuThreads": "112",

"numaNodes": {

"0": {

"cpus": [

56,

57,

.,

.,

110,

111

],

"hugepages": {},

"totalMemory": "2023136"

}

},

"onlineCpus": "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"

BR.

Em qua., 28 de jun. de 2023 às 05:46, Volenbovskyi, Konstantin <Konstantin.Volenbovskyi@haufe.com> escreveu:

Hi,

could you check

sudo vdsm-client Host getCapabilities

virsh nodeinfo

virsh capabilities

and possibly see the issue?

By the way most likely I think you will see CPU socket(s): 1 in virsh nodeinfo, but with NUMA cell(s): 2

(that will be OK)

BR,

Konstantin

Von: Jorge Visentini <jorgevisentini@gmail.com>
Datum: Dienstag, 27. Juni 2023 um 18:50
An: Dean L <dean@datacom.ca>
Cc: "users@ovirt.org" <users@ovirt.org>
Betreff: [ovirt-users] Re: Processors compatibility matrix oVirt

Sorry, I mentioned it wrong. The engine VM is ok. What happens is that the lscpu output of the physical host is different from the host information in oVirt.

lscpu:

CPU(s): 112

On-line CPU(s) list: 0-111

Thread(s) per core: 2

Core(s) per socket: 28

Socket(s): 2

NUMA node(s): 2

Vendor ID: GenuineIntel

BIOS Vendor ID: Intel(R) Corporation

CPU family: 6

Model: 85

Model name: Intel(R) Xeon(R) Platinum 8276M CPU @ 2.20GHz

Ovirt -> Compute -> Hosts:

CPU Model Name: Intel(R) Xeon(R) Platinum 8276M CPU @ 2.20GHz

CPU Type: Secure Intel Cascadelake Server Family

CPU Sockets: 1

CPU Cores per Socket: 56

CPU Threads per Core: 2 (SMT Enabled)

TSC Frequency: 2199999000 (scaling enabled)

Em ter., 27 de jun. de 2023 às 12:22, Dean L via Users <users@ovirt.org> escreveu:

Jorge,

Your 8276 processor belongs to the former Cascade Lake Family (server), which is supported by oVirt (listed as Intel Cascadelake Server Family).

For CPU requirements see: https://www.ovirt.org/documentation/installing_ovirt_as_a_standalone_manager_with_remote_databases/#CPU_Requirements_SM_remoteDB_deploy

In Linux, you can see the number of sockets with: grep "physical id" /proc/cpuinfo | sort -u | wc -l

Not sure how you installed your oVirt engine, but with hosted-engine, oVirt installs with 1 virtual socket and in advanced options can be change to 2 or 4.

Cheers!

... Dean
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--

Att,

Jorge Visentini
+55 55 98432-9868

Att,

Jorge Visentini
+55 55 98432-9868