Ok from the lscpu output you are just a single numa domain per socket. From the nvidia-smi topo -m it seems to paint that all of the GPUs are on the first socket. Does that match what you expect on this server?
Hi Brian,
Thanks for continuing to help with this.
# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 46 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 16
On-line CPU(s) list: 0-15
Vendor ID: GenuineIntel
BIOS Vendor ID: Intel(R) Corporation
Model name: Intel(R) Xeon(R) Gold 5217 CPU @ 3.00GHz
BIOS Model name: Intel(R) Xeon(R) Gold 5217 CPU @ 3.00GHz
CPU family: 6
Model: 85
Thread(s) per core: 1
Core(s) per socket: 8
Socket(s): 2
Stepping: 7
CPU(s) scaling MHz: 94%
CPU max MHz: 3700.0000
CPU min MHz: 1200.0000
BogoMIPS: 6000.00
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pg
e mca cmov pat pse36 clflush dts acpi mmx fxsr sse
sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm cons
tant_tsc art arch_perfmon pebs bts rep_good nopl xt
opology nonstop_tsc cpuid aperfmperf pni pclmulqdq
dtes64 monitor ds_cpl smx est tm2 ssse3 sdbg fma cx
16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe po
pcnt tsc_deadline_timer aes xsave avx f16c rdrand l
ahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp
_l3 intel_ppin ssbd mba ibrs ibpb stibp ibrs_enhanc
ed fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms inv
pcid cqm mpx rdt_a avx512f avx512dq rdseed adx smap
clflushopt clwb intel_pt avx512cd avx512bw avx512v
l xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_
llc cqm_mbm_total cqm_mbm_local dtherm ida arat pln
pts pku ospke avx512_vnni md_clear flush_l1d arch_
capabilities
Caches (sum of all):
L1d: 512 KiB (16 instances)
L1i: 512 KiB (16 instances)
L2: 16 MiB (16 instances)
L3: 22 MiB (2 instances)
NUMA:
NUMA node(s): 2
NUMA node0 CPU(s): 0-7
NUMA node1 CPU(s): 8-15
Vulnerabilities:
Gather data sampling: Mitigation; Microcode
Indirect target selection: Mitigation; Aligned branch/return thunks
Itlb multihit: KVM: Mitigation: VMX unsupported
L1tf: Not affected
Mds: Not affected
Meltdown: Not affected
Mmio stale data: Mitigation; Clear CPU buffers; SMT disabled
Old microcode: Not affected
Reg file data sampling: Not affected
Retbleed: Mitigation; Enhanced IBRS
Spec rstack overflow: Not affected
Spec store bypass: Mitigation; Speculative Store Bypass disabled via p
rctl
Spectre v1: Mitigation; usercopy/swapgs barriers and __user poi
nter sanitization
Spectre v2: Mitigation; Enhanced / Automatic IBRS; IBPB conditi
onal; PBRSB-eIBRS SW sequence; BHI SW loop, KVM SW
loop
Srbds: Not affected
Tsa: Not affected
Tsx async abort: Mitigation; TSX disabled
Vmscape: Mitigation; IBPB before exit to userspace
# dmidecode -t system
# dmidecode 3.6
Getting SMBIOS data from sysfs.
SMBIOS 3.2.1 present.
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Supermicro
Product Name: SYS-4029GP-TRT2
Version: 123456789
Wake-up Type: Power Switch
SKU Number: 1A0615D9
Family: SMC X11
-Dj
On 10/19/26 13:11, Brian Haymore wrote:
The output you shared from 'nvidai-smi topo -m' and the 'slurmd -G' really seems to point that the GPUs are associated to the first socket with cores 0-7. Could you share the output of 'lscpu' and 'dmidecode -t system' (I'm just after the brand & model info
of the server). I'd like to see what lscpu shows for the numa domains related to the l3cache as socket angle.