dear people,
Few days ago I wrote this email. Diego Zuccato kindly reply with an email that lead to the proper solution. I disabled hyperthreading in the bios, the computers gave now 16 Cpus and Slurm is not complaining. Very nice now. Knowing the possible mistake I did a search with better results on google and I got this link
https://utcc.utoronto.ca/~cks/space/blog/linux/IntelHyperthreadingSurprise
It seems it explains details but I did not go thru it since I was able to keep moving on my work.
cheers
On 2/16/25 21:41, Hugo Solís wrote:
I am installing slurm on a small cluster of 3 identical computers at the university.
It turns out that I get the message when starting:
error: NodeNames=hugo-big-1 CPUs=24 match no Sockets, Sockets*CoresPerSocket or Sockets*CoresPerSocket*ThreadsPerCore. Resetting CPUs.
error: NodeNames=hugo-big-2 CPUs=24 match no Sockets, Sockets*CoresPerSocket or Sockets*CoresPerSocket*ThreadsPerCore. Resetting CPUs.
error: NodeNames=hugo-big-3 CPUs=24 match no Sockets, Sockets*CoresPerSocket or Sockets*CoresPerSocket*ThreadsPerCore. Resetting CPUs.
if I run
sudo slurmd -C
I get
NodeName=hugo-big-1 CPUs=24 Boards=1 SocketsPerBoard=1 CoresPerSocket=16 ThreadsPerCore=1 RealMemory=128586
reading many post it seems there is a bug starting in version 18. However I had modify the slurm.conf file
NodeName=hugo-big-1 CPUs=24 Boards=1 SocketsPerBoard=1 CoresPerSocket=16 ThreadsPerCore=1 RealMemory=128586 Gres=gpu:nvidia_geforce_rtx_3090:2
to several different version where I do not specify CPUs or sockets and I failed everytime.
I do need help, any idea?
warm regards
Hugo Solis
BTW. if I run lscpu I got that any product of Thread, cores or sockets do not result in 24.
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): 24 On-line CPU(s) list: 0-23 Vendor ID: GenuineIntel Model name: 12th Gen Intel(R) Core(TM) i9-12900K CPU family: 6 Model: 151 Thread(s) per core: 2 Core(s) per socket: 16 Socket(s): 1 Stepping: 2 CPU max MHz: 5200.0000 CPU min MHz: 800.0000 BogoMIPS: 6374.40 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_ti mer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault cat_l2 cdp_l2 ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdt_a rdseed adx smap clflushopt clwb intel_pt sha_ni xsaveopt xsavec xgetbv1 xsaves split_lock_detect user_shstk avx_vnni dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_e pp hwp_pkg_req hfi vnmi umip pku ospke waitpkg gfni vaes vpclmulqdq tme rdpid movdiri movdir64b fsrm md_clear serialize pconfig arch_lbr ibt flush_l1d arch_capabilities Virtualization features: Virtualization: VT-x Caches (sum of all): L1d: 640 KiB (16 instances) L1i: 768 KiB (16 instances) L2: 14 MiB (10 instances) L3: 30 MiB (1 instance) NUMA: NUMA node(s): 1 NUMA node0 CPU(s): 0-23