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Re: Threadripper 2920X wrong core count

PostPosted: 26. Feb 2019, 06:39
by pickaname
michaelrobbins could you paste result of:

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grep "" /sys/devices/system/cpu/cpu*/topology/*

Re: Threadripper 2920X wrong core count

PostPosted: 26. Feb 2019, 07:01
by socratis
michaelrobbins wrote:I'd post an image of my Virtualbox console but the forum won't allow it:

Correct. And you shouldn't. Please attach the image locally in your response (see the "Upload attachment" tab below the reply form). Not a lot of people will go to 3rd party sites. Plus, it's more convenient if the image goes along with the message...

Image

Re: Threadripper 2920X wrong core count

PostPosted: 1. Mar 2019, 21:49
by michaelrobbins
pickaname wrote:michaelrobbins could you paste result of:

Code: Select all   Expand viewCollapse view
grep "" /sys/devices/system/cpu/cpu*/topology/*


Code: Select all   Expand viewCollapse view
threadripper@cerberus:~$ grep "" /sys/devices/system/cpu/cpu*/topology/*
/sys/devices/system/cpu/cpu0/topology/core_id:0
/sys/devices/system/cpu/cpu0/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu0/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu0/topology/physical_package_id:0
/sys/devices/system/cpu/cpu0/topology/thread_siblings:00000000,00000000,00000000,01000001
/sys/devices/system/cpu/cpu0/topology/thread_siblings_list:0,24
/sys/devices/system/cpu/cpu10/topology/core_id:5
/sys/devices/system/cpu/cpu10/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu10/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu10/topology/physical_package_id:0
/sys/devices/system/cpu/cpu10/topology/thread_siblings:00000000,00000000,00000004,00000400
/sys/devices/system/cpu/cpu10/topology/thread_siblings_list:10,34
/sys/devices/system/cpu/cpu11/topology/core_id:6
/sys/devices/system/cpu/cpu11/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu11/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu11/topology/physical_package_id:0
/sys/devices/system/cpu/cpu11/topology/thread_siblings:00000000,00000000,00000008,00000800
/sys/devices/system/cpu/cpu11/topology/thread_siblings_list:11,35
/sys/devices/system/cpu/cpu12/topology/core_id:0
/sys/devices/system/cpu/cpu12/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu12/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu12/topology/physical_package_id:0
/sys/devices/system/cpu/cpu12/topology/thread_siblings:00000000,00000000,00000010,00001000
/sys/devices/system/cpu/cpu12/topology/thread_siblings_list:12,36
/sys/devices/system/cpu/cpu13/topology/core_id:1
/sys/devices/system/cpu/cpu13/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu13/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu13/topology/physical_package_id:0
/sys/devices/system/cpu/cpu13/topology/thread_siblings:00000000,00000000,00000020,00002000
/sys/devices/system/cpu/cpu13/topology/thread_siblings_list:13,37
/sys/devices/system/cpu/cpu14/topology/core_id:2
/sys/devices/system/cpu/cpu14/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu14/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu14/topology/physical_package_id:0
/sys/devices/system/cpu/cpu14/topology/thread_siblings:00000000,00000000,00000040,00004000
/sys/devices/system/cpu/cpu14/topology/thread_siblings_list:14,38
/sys/devices/system/cpu/cpu15/topology/core_id:4
/sys/devices/system/cpu/cpu15/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu15/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu15/topology/physical_package_id:0
/sys/devices/system/cpu/cpu15/topology/thread_siblings:00000000,00000000,00000080,00008000
/sys/devices/system/cpu/cpu15/topology/thread_siblings_list:15,39
/sys/devices/system/cpu/cpu16/topology/core_id:5
/sys/devices/system/cpu/cpu16/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu16/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu16/topology/physical_package_id:0
/sys/devices/system/cpu/cpu16/topology/thread_siblings:00000000,00000000,00000100,00010000
/sys/devices/system/cpu/cpu16/topology/thread_siblings_list:16,40
/sys/devices/system/cpu/cpu17/topology/core_id:6
/sys/devices/system/cpu/cpu17/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu17/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu17/topology/physical_package_id:0
/sys/devices/system/cpu/cpu17/topology/thread_siblings:00000000,00000000,00000200,00020000
/sys/devices/system/cpu/cpu17/topology/thread_siblings_list:17,41
/sys/devices/system/cpu/cpu18/topology/core_id:0
/sys/devices/system/cpu/cpu18/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu18/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu18/topology/physical_package_id:0
/sys/devices/system/cpu/cpu18/topology/thread_siblings:00000000,00000000,00000400,00040000
/sys/devices/system/cpu/cpu18/topology/thread_siblings_list:18,42
/sys/devices/system/cpu/cpu19/topology/core_id:1
/sys/devices/system/cpu/cpu19/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu19/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu19/topology/physical_package_id:0
/sys/devices/system/cpu/cpu19/topology/thread_siblings:00000000,00000000,00000800,00080000
/sys/devices/system/cpu/cpu19/topology/thread_siblings_list:19,43
/sys/devices/system/cpu/cpu1/topology/core_id:1
/sys/devices/system/cpu/cpu1/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu1/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu1/topology/physical_package_id:0
/sys/devices/system/cpu/cpu1/topology/thread_siblings:00000000,00000000,00000000,02000002
/sys/devices/system/cpu/cpu1/topology/thread_siblings_list:1,25
/sys/devices/system/cpu/cpu20/topology/core_id:2
/sys/devices/system/cpu/cpu20/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu20/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu20/topology/physical_package_id:0
/sys/devices/system/cpu/cpu20/topology/thread_siblings:00000000,00000000,00001000,00100000
/sys/devices/system/cpu/cpu20/topology/thread_siblings_list:20,44
/sys/devices/system/cpu/cpu21/topology/core_id:4
/sys/devices/system/cpu/cpu21/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu21/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu21/topology/physical_package_id:0
/sys/devices/system/cpu/cpu21/topology/thread_siblings:00000000,00000000,00002000,00200000
/sys/devices/system/cpu/cpu21/topology/thread_siblings_list:21,45
/sys/devices/system/cpu/cpu22/topology/core_id:5
/sys/devices/system/cpu/cpu22/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu22/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu22/topology/physical_package_id:0
/sys/devices/system/cpu/cpu22/topology/thread_siblings:00000000,00000000,00004000,00400000
/sys/devices/system/cpu/cpu22/topology/thread_siblings_list:22,46
/sys/devices/system/cpu/cpu23/topology/core_id:6
/sys/devices/system/cpu/cpu23/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu23/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu23/topology/physical_package_id:0
/sys/devices/system/cpu/cpu23/topology/thread_siblings:00000000,00000000,00008000,00800000
/sys/devices/system/cpu/cpu23/topology/thread_siblings_list:23,47
/sys/devices/system/cpu/cpu24/topology/core_id:0
/sys/devices/system/cpu/cpu24/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu24/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu24/topology/physical_package_id:0
/sys/devices/system/cpu/cpu24/topology/thread_siblings:00000000,00000000,00000000,01000001
/sys/devices/system/cpu/cpu24/topology/thread_siblings_list:0,24
/sys/devices/system/cpu/cpu25/topology/core_id:1
/sys/devices/system/cpu/cpu25/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu25/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu25/topology/physical_package_id:0
/sys/devices/system/cpu/cpu25/topology/thread_siblings:00000000,00000000,00000000,02000002
/sys/devices/system/cpu/cpu25/topology/thread_siblings_list:1,25
/sys/devices/system/cpu/cpu26/topology/core_id:2
/sys/devices/system/cpu/cpu26/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu26/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu26/topology/physical_package_id:0
/sys/devices/system/cpu/cpu26/topology/thread_siblings:00000000,00000000,00000000,04000004
/sys/devices/system/cpu/cpu26/topology/thread_siblings_list:2,26
/sys/devices/system/cpu/cpu27/topology/core_id:4
/sys/devices/system/cpu/cpu27/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu27/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu27/topology/physical_package_id:0
/sys/devices/system/cpu/cpu27/topology/thread_siblings:00000000,00000000,00000000,08000008
/sys/devices/system/cpu/cpu27/topology/thread_siblings_list:3,27
/sys/devices/system/cpu/cpu28/topology/core_id:5
/sys/devices/system/cpu/cpu28/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu28/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu28/topology/physical_package_id:0
/sys/devices/system/cpu/cpu28/topology/thread_siblings:00000000,00000000,00000000,10000010
/sys/devices/system/cpu/cpu28/topology/thread_siblings_list:4,28
/sys/devices/system/cpu/cpu29/topology/core_id:6
/sys/devices/system/cpu/cpu29/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu29/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu29/topology/physical_package_id:0
/sys/devices/system/cpu/cpu29/topology/thread_siblings:00000000,00000000,00000000,20000020
/sys/devices/system/cpu/cpu29/topology/thread_siblings_list:5,29
/sys/devices/system/cpu/cpu2/topology/core_id:2
/sys/devices/system/cpu/cpu2/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu2/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu2/topology/physical_package_id:0
/sys/devices/system/cpu/cpu2/topology/thread_siblings:00000000,00000000,00000000,04000004
/sys/devices/system/cpu/cpu2/topology/thread_siblings_list:2,26
/sys/devices/system/cpu/cpu30/topology/core_id:0
/sys/devices/system/cpu/cpu30/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu30/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu30/topology/physical_package_id:0
/sys/devices/system/cpu/cpu30/topology/thread_siblings:00000000,00000000,00000000,40000040
/sys/devices/system/cpu/cpu30/topology/thread_siblings_list:6,30
/sys/devices/system/cpu/cpu31/topology/core_id:1
/sys/devices/system/cpu/cpu31/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu31/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu31/topology/physical_package_id:0
/sys/devices/system/cpu/cpu31/topology/thread_siblings:00000000,00000000,00000000,80000080
/sys/devices/system/cpu/cpu31/topology/thread_siblings_list:7,31
/sys/devices/system/cpu/cpu32/topology/core_id:2
/sys/devices/system/cpu/cpu32/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu32/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu32/topology/physical_package_id:0
/sys/devices/system/cpu/cpu32/topology/thread_siblings:00000000,00000000,00000001,00000100
/sys/devices/system/cpu/cpu32/topology/thread_siblings_list:8,32
/sys/devices/system/cpu/cpu33/topology/core_id:4
/sys/devices/system/cpu/cpu33/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu33/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu33/topology/physical_package_id:0
/sys/devices/system/cpu/cpu33/topology/thread_siblings:00000000,00000000,00000002,00000200
/sys/devices/system/cpu/cpu33/topology/thread_siblings_list:9,33
/sys/devices/system/cpu/cpu34/topology/core_id:5
/sys/devices/system/cpu/cpu34/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu34/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu34/topology/physical_package_id:0
/sys/devices/system/cpu/cpu34/topology/thread_siblings:00000000,00000000,00000004,00000400
/sys/devices/system/cpu/cpu34/topology/thread_siblings_list:10,34
/sys/devices/system/cpu/cpu35/topology/core_id:6
/sys/devices/system/cpu/cpu35/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu35/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu35/topology/physical_package_id:0
/sys/devices/system/cpu/cpu35/topology/thread_siblings:00000000,00000000,00000008,00000800
/sys/devices/system/cpu/cpu35/topology/thread_siblings_list:11,35
/sys/devices/system/cpu/cpu36/topology/core_id:0
/sys/devices/system/cpu/cpu36/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu36/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu36/topology/physical_package_id:0
/sys/devices/system/cpu/cpu36/topology/thread_siblings:00000000,00000000,00000010,00001000
/sys/devices/system/cpu/cpu36/topology/thread_siblings_list:12,36
/sys/devices/system/cpu/cpu37/topology/core_id:1
/sys/devices/system/cpu/cpu37/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu37/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu37/topology/physical_package_id:0
/sys/devices/system/cpu/cpu37/topology/thread_siblings:00000000,00000000,00000020,00002000
/sys/devices/system/cpu/cpu37/topology/thread_siblings_list:13,37
/sys/devices/system/cpu/cpu38/topology/core_id:2
/sys/devices/system/cpu/cpu38/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu38/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu38/topology/physical_package_id:0
/sys/devices/system/cpu/cpu38/topology/thread_siblings:00000000,00000000,00000040,00004000
/sys/devices/system/cpu/cpu38/topology/thread_siblings_list:14,38
/sys/devices/system/cpu/cpu39/topology/core_id:4
/sys/devices/system/cpu/cpu39/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu39/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu39/topology/physical_package_id:0
/sys/devices/system/cpu/cpu39/topology/thread_siblings:00000000,00000000,00000080,00008000
/sys/devices/system/cpu/cpu39/topology/thread_siblings_list:15,39
/sys/devices/system/cpu/cpu3/topology/core_id:4
/sys/devices/system/cpu/cpu3/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu3/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu3/topology/physical_package_id:0
/sys/devices/system/cpu/cpu3/topology/thread_siblings:00000000,00000000,00000000,08000008
/sys/devices/system/cpu/cpu3/topology/thread_siblings_list:3,27
/sys/devices/system/cpu/cpu40/topology/core_id:5
/sys/devices/system/cpu/cpu40/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu40/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu40/topology/physical_package_id:0
/sys/devices/system/cpu/cpu40/topology/thread_siblings:00000000,00000000,00000100,00010000
/sys/devices/system/cpu/cpu40/topology/thread_siblings_list:16,40
/sys/devices/system/cpu/cpu41/topology/core_id:6
/sys/devices/system/cpu/cpu41/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu41/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu41/topology/physical_package_id:0
/sys/devices/system/cpu/cpu41/topology/thread_siblings:00000000,00000000,00000200,00020000
/sys/devices/system/cpu/cpu41/topology/thread_siblings_list:17,41
/sys/devices/system/cpu/cpu42/topology/core_id:0
/sys/devices/system/cpu/cpu42/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu42/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu42/topology/physical_package_id:0
/sys/devices/system/cpu/cpu42/topology/thread_siblings:00000000,00000000,00000400,00040000
/sys/devices/system/cpu/cpu42/topology/thread_siblings_list:18,42
/sys/devices/system/cpu/cpu43/topology/core_id:1
/sys/devices/system/cpu/cpu43/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu43/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu43/topology/physical_package_id:0
/sys/devices/system/cpu/cpu43/topology/thread_siblings:00000000,00000000,00000800,00080000
/sys/devices/system/cpu/cpu43/topology/thread_siblings_list:19,43
/sys/devices/system/cpu/cpu44/topology/core_id:2
/sys/devices/system/cpu/cpu44/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu44/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu44/topology/physical_package_id:0
/sys/devices/system/cpu/cpu44/topology/thread_siblings:00000000,00000000,00001000,00100000
/sys/devices/system/cpu/cpu44/topology/thread_siblings_list:20,44
/sys/devices/system/cpu/cpu45/topology/core_id:4
/sys/devices/system/cpu/cpu45/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu45/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu45/topology/physical_package_id:0
/sys/devices/system/cpu/cpu45/topology/thread_siblings:00000000,00000000,00002000,00200000
/sys/devices/system/cpu/cpu45/topology/thread_siblings_list:21,45
/sys/devices/system/cpu/cpu46/topology/core_id:5
/sys/devices/system/cpu/cpu46/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu46/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu46/topology/physical_package_id:0
/sys/devices/system/cpu/cpu46/topology/thread_siblings:00000000,00000000,00004000,00400000
/sys/devices/system/cpu/cpu46/topology/thread_siblings_list:22,46
/sys/devices/system/cpu/cpu47/topology/core_id:6
/sys/devices/system/cpu/cpu47/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu47/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu47/topology/physical_package_id:0
/sys/devices/system/cpu/cpu47/topology/thread_siblings:00000000,00000000,00008000,00800000
/sys/devices/system/cpu/cpu47/topology/thread_siblings_list:23,47
/sys/devices/system/cpu/cpu4/topology/core_id:5
/sys/devices/system/cpu/cpu4/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu4/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu4/topology/physical_package_id:0
/sys/devices/system/cpu/cpu4/topology/thread_siblings:00000000,00000000,00000000,10000010
/sys/devices/system/cpu/cpu4/topology/thread_siblings_list:4,28
/sys/devices/system/cpu/cpu5/topology/core_id:6
/sys/devices/system/cpu/cpu5/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu5/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu5/topology/physical_package_id:0
/sys/devices/system/cpu/cpu5/topology/thread_siblings:00000000,00000000,00000000,20000020
/sys/devices/system/cpu/cpu5/topology/thread_siblings_list:5,29
/sys/devices/system/cpu/cpu6/topology/core_id:0
/sys/devices/system/cpu/cpu6/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu6/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu6/topology/physical_package_id:0
/sys/devices/system/cpu/cpu6/topology/thread_siblings:00000000,00000000,00000000,40000040
/sys/devices/system/cpu/cpu6/topology/thread_siblings_list:6,30
/sys/devices/system/cpu/cpu7/topology/core_id:1
/sys/devices/system/cpu/cpu7/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu7/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu7/topology/physical_package_id:0
/sys/devices/system/cpu/cpu7/topology/thread_siblings:00000000,00000000,00000000,80000080
/sys/devices/system/cpu/cpu7/topology/thread_siblings_list:7,31
/sys/devices/system/cpu/cpu8/topology/core_id:2
/sys/devices/system/cpu/cpu8/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu8/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu8/topology/physical_package_id:0
/sys/devices/system/cpu/cpu8/topology/thread_siblings:00000000,00000000,00000001,00000100
/sys/devices/system/cpu/cpu8/topology/thread_siblings_list:8,32
/sys/devices/system/cpu/cpu9/topology/core_id:4
/sys/devices/system/cpu/cpu9/topology/core_siblings:00000000,00000000,0000ffff,ffffffff
/sys/devices/system/cpu/cpu9/topology/core_siblings_list:0-47
/sys/devices/system/cpu/cpu9/topology/physical_package_id:0
/sys/devices/system/cpu/cpu9/topology/thread_siblings:00000000,00000000,00000002,00000200
/sys/devices/system/cpu/cpu9/topology/thread_siblings_list:9,33

CPU Core Count

PostPosted: 2. Mar 2019, 20:42
by DisturbedDragon
I have a Linux host:
Release Linux Mint 18.2 Sonya 64-bit
Kernel Linux 4.8.0-58-generic x86_64
MATE 1.18.0

Processor: AMD Opteron(tm) Processor 6376 × 16
Memory: 62.9 GiB (64GB ECC)

The processor is 16 core but Virtualbox Version 6.0.4 r128413 (Qt5.6.1) only recognizes 4 cores for VM allocation. Version 5,though I don't know what build at least saw 8 cores. Anyone know of a fix for this issue? Tried rolling back but cannot find a version that will revert to seeing the eight cores.

I have five Linux guests and four Windows guests on this box. All are running without issue at the moment with each allocated only two cores but within these are six game servers. I worry how this will affect performance if several are loaded down at a time. Each is on a dedicated SSD and have plenty of RAM so the CPU issue is my only concern.

lscpu dump
Code: Select all   Expand viewCollapse view
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                16
On-line CPU(s) list:   0-15
Thread(s) per core:    2
Core(s) per socket:    8
Socket(s):             1
NUMA node(s):          2
Vendor ID:             AuthenticAMD
CPU family:            21
Model:                 2
Model name:            AMD Opteron(tm) Processor 6376
Stepping:              0
CPU MHz:               1400.000
CPU max MHz:           2300.0000
CPU min MHz:           1400.0000
BogoMIPS:              4599.98
Virtualization:        AMD-V
L1d cache:             16K
L1i cache:             64K
L2 cache:              2048K
L3 cache:              6144K
NUMA node0 CPU(s):     0-7
NUMA node1 CPU(s):     8-15
Flags:                 fpu 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 lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf eagerfpu pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb cpb hw_pstate vmmcall bmi1 arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold

Re: CPU Core Count

PostPosted: 2. Mar 2019, 22:32
by socratis
DisturbedDragon wrote:Version 5,though I don't know what build at least saw 8 cores.
DisturbedDragon wrote:Tried rolling back but cannot find a version that will revert to seeing the eight cores.
You realize that these two sentences contradict each other, right? ;)

There seems to be something going on with Linux and AMD CPUs. See for example the recent thread, "Threadripper 2920X wrong core count". It might be better actually if you continue the discussion there, so that there's a centralized place to discuss this, and find the common denominator that's why I'm going to merge your thread with that one.

In the meantime, could you start downgrading and find out where you actually saw the 8 cores? That could help a lot!!!

And according to other posters that are more experts than I am, you should post the output of:

    grep "" /sys/devices/system/cpu/cpu*/topology/*

Re: Threadripper 2920X wrong core count

PostPosted: 17. Mar 2019, 22:00
by DisturbedDragon
Correctly stated I cannot find the version(s) that saw eight cores. But then I have not tried all versions of 5 yet. That would take far too long anyway.

As for the requested info:

Code: Select all   Expand viewCollapse view
@DD-SVR ~ $ grep "" /sys/devices/system/cpu/cpu*/topology/*
/sys/devices/system/cpu/cpu0/topology/core_id:0
/sys/devices/system/cpu/cpu0/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu0/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu0/topology/physical_package_id:0
/sys/devices/system/cpu/cpu0/topology/thread_siblings:0003
/sys/devices/system/cpu/cpu0/topology/thread_siblings_list:0-1
/sys/devices/system/cpu/cpu10/topology/core_id:1
/sys/devices/system/cpu/cpu10/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu10/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu10/topology/physical_package_id:0
/sys/devices/system/cpu/cpu10/topology/thread_siblings:0c00
/sys/devices/system/cpu/cpu10/topology/thread_siblings_list:10-11
/sys/devices/system/cpu/cpu11/topology/core_id:1
/sys/devices/system/cpu/cpu11/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu11/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu11/topology/physical_package_id:0
/sys/devices/system/cpu/cpu11/topology/thread_siblings:0c00
/sys/devices/system/cpu/cpu11/topology/thread_siblings_list:10-11
/sys/devices/system/cpu/cpu12/topology/core_id:2
/sys/devices/system/cpu/cpu12/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu12/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu12/topology/physical_package_id:0
/sys/devices/system/cpu/cpu12/topology/thread_siblings:3000
/sys/devices/system/cpu/cpu12/topology/thread_siblings_list:12-13
/sys/devices/system/cpu/cpu13/topology/core_id:2
/sys/devices/system/cpu/cpu13/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu13/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu13/topology/physical_package_id:0
/sys/devices/system/cpu/cpu13/topology/thread_siblings:3000
/sys/devices/system/cpu/cpu13/topology/thread_siblings_list:12-13
/sys/devices/system/cpu/cpu14/topology/core_id:3
/sys/devices/system/cpu/cpu14/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu14/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu14/topology/physical_package_id:0
/sys/devices/system/cpu/cpu14/topology/thread_siblings:c000
/sys/devices/system/cpu/cpu14/topology/thread_siblings_list:14-15
/sys/devices/system/cpu/cpu15/topology/core_id:3
/sys/devices/system/cpu/cpu15/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu15/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu15/topology/physical_package_id:0
/sys/devices/system/cpu/cpu15/topology/thread_siblings:c000
/sys/devices/system/cpu/cpu15/topology/thread_siblings_list:14-15
/sys/devices/system/cpu/cpu1/topology/core_id:0
/sys/devices/system/cpu/cpu1/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu1/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu1/topology/physical_package_id:0
/sys/devices/system/cpu/cpu1/topology/thread_siblings:0003
/sys/devices/system/cpu/cpu1/topology/thread_siblings_list:0-1
/sys/devices/system/cpu/cpu2/topology/core_id:1
/sys/devices/system/cpu/cpu2/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu2/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu2/topology/physical_package_id:0
/sys/devices/system/cpu/cpu2/topology/thread_siblings:000c
/sys/devices/system/cpu/cpu2/topology/thread_siblings_list:2-3
/sys/devices/system/cpu/cpu3/topology/core_id:1
/sys/devices/system/cpu/cpu3/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu3/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu3/topology/physical_package_id:0
/sys/devices/system/cpu/cpu3/topology/thread_siblings:000c
/sys/devices/system/cpu/cpu3/topology/thread_siblings_list:2-3
/sys/devices/system/cpu/cpu4/topology/core_id:2
/sys/devices/system/cpu/cpu4/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu4/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu4/topology/physical_package_id:0
/sys/devices/system/cpu/cpu4/topology/thread_siblings:0030
/sys/devices/system/cpu/cpu4/topology/thread_siblings_list:4-5
/sys/devices/system/cpu/cpu5/topology/core_id:2
/sys/devices/system/cpu/cpu5/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu5/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu5/topology/physical_package_id:0
/sys/devices/system/cpu/cpu5/topology/thread_siblings:0030
/sys/devices/system/cpu/cpu5/topology/thread_siblings_list:4-5
/sys/devices/system/cpu/cpu6/topology/core_id:3
/sys/devices/system/cpu/cpu6/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu6/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu6/topology/physical_package_id:0
/sys/devices/system/cpu/cpu6/topology/thread_siblings:00c0
/sys/devices/system/cpu/cpu6/topology/thread_siblings_list:6-7
/sys/devices/system/cpu/cpu7/topology/core_id:3
/sys/devices/system/cpu/cpu7/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu7/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu7/topology/physical_package_id:0
/sys/devices/system/cpu/cpu7/topology/thread_siblings:00c0
/sys/devices/system/cpu/cpu7/topology/thread_siblings_list:6-7
/sys/devices/system/cpu/cpu8/topology/core_id:0
/sys/devices/system/cpu/cpu8/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu8/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu8/topology/physical_package_id:0
/sys/devices/system/cpu/cpu8/topology/thread_siblings:0300
/sys/devices/system/cpu/cpu8/topology/thread_siblings_list:8-9
/sys/devices/system/cpu/cpu9/topology/core_id:0
/sys/devices/system/cpu/cpu9/topology/core_siblings:ffff
/sys/devices/system/cpu/cpu9/topology/core_siblings_list:0-15
/sys/devices/system/cpu/cpu9/topology/physical_package_id:0
/sys/devices/system/cpu/cpu9/topology/thread_siblings:0300
/sys/devices/system/cpu/cpu9/topology/thread_siblings_list:8-9