Thanks, Åke, I just remember that our login nodes are KVM virtualized, which should be the reason for this behavior. I'll have my colleague look into libvirt configuration to hopefully fix that.
To answer your question, the full /proc/cpuinfo is below. Cheers, Andreas Compute node: ---8<------------------------------------------------------------------ processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 79 model name : Intel(R) Xeon(R) CPU E5-2690 v4 @ 2.60GHz stepping : 1 microcode : 0xb00001b cpu MHz : 3199.929 cache size : 35840 KB physical id : 0 siblings : 14 core id : 0 cpu cores : 14 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 20 wp : yes 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 arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm rdseed adx smap xsaveopt cqm_llc cqm_occup_llc bogomips : 5188.38 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual power management: ---8<------------------------------------------------------------------ Login virtual machine ---8<------------------------------------------------------------------ processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 61 model name : Intel Core Processor (Broadwell) stepping : 2 microcode : 0x1 cpu MHz : 2399.996 cache size : 4096 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm 3dnowprefetch fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt bogomips : 4799.99 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual power management: ---8<------------------------------------------------------------------ Master virtualization guest ---8<------------------------------------------------------------------ processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 79 model name : Intel(R) Xeon(R) CPU E5-2640 v4 @ 2.40GHz stepping : 1 microcode : 0xb00001d cpu MHz : 2599.968 cache size : 25600 KB physical id : 0 siblings : 20 core id : 0 cpu cores : 10 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 20 wp : yes 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 arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm rdseed adx smap xsaveopt cqm_llc cqm_occup_llc bogomips : 4799.91 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual power management: ---8<------------------------------------------------------------------
