Cannot set more than 8 CPU with Threadripper 2990WX

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mastupristi
Posts: 16
Joined: 21. Jul 2009, 08:41
Primary OS: Ubuntu other
VBox Version: OSE Debian
Guest OSses: Windows XP, linux 32 nit, linux 64 bit

Cannot set more than 8 CPU with Threadripper 2990WX

Post by mastupristi »

Hello,

I cannot assign more than 8 CPU to any VM I create, regardless to VirtualBox version.
Screenshot_2020-09-26_18-23-22.png
Screenshot_2020-09-26_18-23-22.png (61.22 KiB) Viewed 1097 times
My processor is AMD Ryzen Treadripper 2990WX. My system is xubuntu 20.04, but tried also with 19.10 and 19.04.

Code: Select all

max@jarvis:~$ lscpu
Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   43 bits physical, 48 bits virtual
CPU(s):                          64
On-line CPU(s) list:             0-63
Thread(s) per core:              2
Core(s) per socket:              32
Socket(s):                       1
NUMA node(s):                    4
Vendor ID:                       AuthenticAMD
CPU family:                      23
Model:                           8
Model name:                      AMD Ryzen Threadripper 2990WX 32-Core Processor
Stepping:                        2
Frequency boost:                 enabled
CPU MHz:                         1719.630
CPU max MHz:                     3000,0000
CPU min MHz:                     2200,0000
BogoMIPS:                        5987.88
Virtualization:                  AMD-V
L1d cache:                       1 MiB
L1i cache:                       2 MiB
L2 cache:                        16 MiB
L3 cache:                        64 MiB

Code: Select all

max@jarvis:~$ grep "" /sys/devices/system/cpu/cpu*/topology/*
/sys/devices/system/cpu/cpu0/topology/core_cpus:00000000,00000000,00000001,00000001
/sys/devices/system/cpu/cpu0/topology/core_cpus_list:0,32
/sys/devices/system/cpu/cpu0/topology/core_id:0
/sys/devices/system/cpu/cpu0/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu0/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu0/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu0/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu0/topology/die_id:0
/sys/devices/system/cpu/cpu0/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu0/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu0/topology/physical_package_id:0
/sys/devices/system/cpu/cpu0/topology/thread_siblings:00000000,00000000,00000001,00000001
/sys/devices/system/cpu/cpu0/topology/thread_siblings_list:0,32
/sys/devices/system/cpu/cpu10/topology/core_cpus:00000000,00000000,00000400,00000400
/sys/devices/system/cpu/cpu10/topology/core_cpus_list:10,42
/sys/devices/system/cpu/cpu10/topology/core_id:2
/sys/devices/system/cpu/cpu10/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu10/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu10/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu10/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu10/topology/die_id:0
/sys/devices/system/cpu/cpu10/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu10/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu10/topology/physical_package_id:0
/sys/devices/system/cpu/cpu10/topology/thread_siblings:00000000,00000000,00000400,00000400
/sys/devices/system/cpu/cpu10/topology/thread_siblings_list:10,42
/sys/devices/system/cpu/cpu11/topology/core_cpus:00000000,00000000,00000800,00000800
/sys/devices/system/cpu/cpu11/topology/core_cpus_list:11,43
/sys/devices/system/cpu/cpu11/topology/core_id:3
/sys/devices/system/cpu/cpu11/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu11/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu11/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu11/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu11/topology/die_id:0
/sys/devices/system/cpu/cpu11/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu11/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu11/topology/physical_package_id:0
/sys/devices/system/cpu/cpu11/topology/thread_siblings:00000000,00000000,00000800,00000800
/sys/devices/system/cpu/cpu11/topology/thread_siblings_list:11,43
/sys/devices/system/cpu/cpu12/topology/core_cpus:00000000,00000000,00001000,00001000
/sys/devices/system/cpu/cpu12/topology/core_cpus_list:12,44
/sys/devices/system/cpu/cpu12/topology/core_id:4
/sys/devices/system/cpu/cpu12/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu12/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu12/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu12/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu12/topology/die_id:0
/sys/devices/system/cpu/cpu12/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu12/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu12/topology/physical_package_id:0
/sys/devices/system/cpu/cpu12/topology/thread_siblings:00000000,00000000,00001000,00001000
/sys/devices/system/cpu/cpu12/topology/thread_siblings_list:12,44
/sys/devices/system/cpu/cpu13/topology/core_cpus:00000000,00000000,00002000,00002000
/sys/devices/system/cpu/cpu13/topology/core_cpus_list:13,45
/sys/devices/system/cpu/cpu13/topology/core_id:5
/sys/devices/system/cpu/cpu13/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu13/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu13/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu13/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu13/topology/die_id:0
/sys/devices/system/cpu/cpu13/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu13/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu13/topology/physical_package_id:0
/sys/devices/system/cpu/cpu13/topology/thread_siblings:00000000,00000000,00002000,00002000
/sys/devices/system/cpu/cpu13/topology/thread_siblings_list:13,45
/sys/devices/system/cpu/cpu14/topology/core_cpus:00000000,00000000,00004000,00004000
/sys/devices/system/cpu/cpu14/topology/core_cpus_list:14,46
/sys/devices/system/cpu/cpu14/topology/core_id:6
/sys/devices/system/cpu/cpu14/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu14/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu14/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu14/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu14/topology/die_id:0
/sys/devices/system/cpu/cpu14/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu14/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu14/topology/physical_package_id:0
/sys/devices/system/cpu/cpu14/topology/thread_siblings:00000000,00000000,00004000,00004000
/sys/devices/system/cpu/cpu14/topology/thread_siblings_list:14,46
/sys/devices/system/cpu/cpu15/topology/core_cpus:00000000,00000000,00008000,00008000
/sys/devices/system/cpu/cpu15/topology/core_cpus_list:15,47
/sys/devices/system/cpu/cpu15/topology/core_id:7
/sys/devices/system/cpu/cpu15/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu15/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu15/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu15/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu15/topology/die_id:0
/sys/devices/system/cpu/cpu15/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu15/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu15/topology/physical_package_id:0
/sys/devices/system/cpu/cpu15/topology/thread_siblings:00000000,00000000,00008000,00008000
/sys/devices/system/cpu/cpu15/topology/thread_siblings_list:15,47
/sys/devices/system/cpu/cpu16/topology/core_cpus:00000000,00000000,00010000,00010000
/sys/devices/system/cpu/cpu16/topology/core_cpus_list:16,48
/sys/devices/system/cpu/cpu16/topology/core_id:0
/sys/devices/system/cpu/cpu16/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu16/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu16/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu16/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu16/topology/die_id:0
/sys/devices/system/cpu/cpu16/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu16/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu16/topology/physical_package_id:0
/sys/devices/system/cpu/cpu16/topology/thread_siblings:00000000,00000000,00010000,00010000
/sys/devices/system/cpu/cpu16/topology/thread_siblings_list:16,48
/sys/devices/system/cpu/cpu17/topology/core_cpus:00000000,00000000,00020000,00020000
/sys/devices/system/cpu/cpu17/topology/core_cpus_list:17,49
/sys/devices/system/cpu/cpu17/topology/core_id:1
/sys/devices/system/cpu/cpu17/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu17/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu17/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu17/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu17/topology/die_id:0
/sys/devices/system/cpu/cpu17/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu17/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu17/topology/physical_package_id:0
/sys/devices/system/cpu/cpu17/topology/thread_siblings:00000000,00000000,00020000,00020000
/sys/devices/system/cpu/cpu17/topology/thread_siblings_list:17,49
/sys/devices/system/cpu/cpu18/topology/core_cpus:00000000,00000000,00040000,00040000
/sys/devices/system/cpu/cpu18/topology/core_cpus_list:18,50
/sys/devices/system/cpu/cpu18/topology/core_id:2
/sys/devices/system/cpu/cpu18/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu18/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu18/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu18/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu18/topology/die_id:0
/sys/devices/system/cpu/cpu18/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu18/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu18/topology/physical_package_id:0
/sys/devices/system/cpu/cpu18/topology/thread_siblings:00000000,00000000,00040000,00040000
/sys/devices/system/cpu/cpu18/topology/thread_siblings_list:18,50
/sys/devices/system/cpu/cpu19/topology/core_cpus:00000000,00000000,00080000,00080000
/sys/devices/system/cpu/cpu19/topology/core_cpus_list:19,51
/sys/devices/system/cpu/cpu19/topology/core_id:3
/sys/devices/system/cpu/cpu19/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu19/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu19/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu19/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu19/topology/die_id:0
/sys/devices/system/cpu/cpu19/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu19/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu19/topology/physical_package_id:0
/sys/devices/system/cpu/cpu19/topology/thread_siblings:00000000,00000000,00080000,00080000
/sys/devices/system/cpu/cpu19/topology/thread_siblings_list:19,51
/sys/devices/system/cpu/cpu1/topology/core_cpus:00000000,00000000,00000002,00000002
/sys/devices/system/cpu/cpu1/topology/core_cpus_list:1,33
/sys/devices/system/cpu/cpu1/topology/core_id:1
/sys/devices/system/cpu/cpu1/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu1/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu1/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu1/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu1/topology/die_id:0
/sys/devices/system/cpu/cpu1/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu1/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu1/topology/physical_package_id:0
/sys/devices/system/cpu/cpu1/topology/thread_siblings:00000000,00000000,00000002,00000002
/sys/devices/system/cpu/cpu1/topology/thread_siblings_list:1,33
/sys/devices/system/cpu/cpu20/topology/core_cpus:00000000,00000000,00100000,00100000
/sys/devices/system/cpu/cpu20/topology/core_cpus_list:20,52
/sys/devices/system/cpu/cpu20/topology/core_id:4
/sys/devices/system/cpu/cpu20/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu20/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu20/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu20/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu20/topology/die_id:0
/sys/devices/system/cpu/cpu20/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu20/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu20/topology/physical_package_id:0
/sys/devices/system/cpu/cpu20/topology/thread_siblings:00000000,00000000,00100000,00100000
/sys/devices/system/cpu/cpu20/topology/thread_siblings_list:20,52
/sys/devices/system/cpu/cpu21/topology/core_cpus:00000000,00000000,00200000,00200000
/sys/devices/system/cpu/cpu21/topology/core_cpus_list:21,53
/sys/devices/system/cpu/cpu21/topology/core_id:5
/sys/devices/system/cpu/cpu21/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu21/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu21/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu21/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu21/topology/die_id:0
/sys/devices/system/cpu/cpu21/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu21/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu21/topology/physical_package_id:0
/sys/devices/system/cpu/cpu21/topology/thread_siblings:00000000,00000000,00200000,00200000
/sys/devices/system/cpu/cpu21/topology/thread_siblings_list:21,53
/sys/devices/system/cpu/cpu22/topology/core_cpus:00000000,00000000,00400000,00400000
/sys/devices/system/cpu/cpu22/topology/core_cpus_list:22,54
/sys/devices/system/cpu/cpu22/topology/core_id:6
/sys/devices/system/cpu/cpu22/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu22/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu22/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu22/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu22/topology/die_id:0
/sys/devices/system/cpu/cpu22/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu22/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu22/topology/physical_package_id:0
/sys/devices/system/cpu/cpu22/topology/thread_siblings:00000000,00000000,00400000,00400000
/sys/devices/system/cpu/cpu22/topology/thread_siblings_list:22,54
/sys/devices/system/cpu/cpu23/topology/core_cpus:00000000,00000000,00800000,00800000
/sys/devices/system/cpu/cpu23/topology/core_cpus_list:23,55
/sys/devices/system/cpu/cpu23/topology/core_id:7
/sys/devices/system/cpu/cpu23/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu23/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu23/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu23/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu23/topology/die_id:0
/sys/devices/system/cpu/cpu23/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu23/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu23/topology/physical_package_id:0
/sys/devices/system/cpu/cpu23/topology/thread_siblings:00000000,00000000,00800000,00800000
/sys/devices/system/cpu/cpu23/topology/thread_siblings_list:23,55
/sys/devices/system/cpu/cpu24/topology/core_cpus:00000000,00000000,01000000,01000000
/sys/devices/system/cpu/cpu24/topology/core_cpus_list:24,56
/sys/devices/system/cpu/cpu24/topology/core_id:0
/sys/devices/system/cpu/cpu24/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu24/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu24/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu24/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu24/topology/die_id:0
/sys/devices/system/cpu/cpu24/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu24/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu24/topology/physical_package_id:0
/sys/devices/system/cpu/cpu24/topology/thread_siblings:00000000,00000000,01000000,01000000
/sys/devices/system/cpu/cpu24/topology/thread_siblings_list:24,56
/sys/devices/system/cpu/cpu25/topology/core_cpus:00000000,00000000,02000000,02000000
/sys/devices/system/cpu/cpu25/topology/core_cpus_list:25,57
/sys/devices/system/cpu/cpu25/topology/core_id:1
/sys/devices/system/cpu/cpu25/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu25/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu25/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu25/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu25/topology/die_id:0
/sys/devices/system/cpu/cpu25/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu25/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu25/topology/physical_package_id:0
/sys/devices/system/cpu/cpu25/topology/thread_siblings:00000000,00000000,02000000,02000000
/sys/devices/system/cpu/cpu25/topology/thread_siblings_list:25,57
/sys/devices/system/cpu/cpu26/topology/core_cpus:00000000,00000000,04000000,04000000
/sys/devices/system/cpu/cpu26/topology/core_cpus_list:26,58
/sys/devices/system/cpu/cpu26/topology/core_id:2
/sys/devices/system/cpu/cpu26/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu26/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu26/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu26/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu26/topology/die_id:0
/sys/devices/system/cpu/cpu26/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu26/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu26/topology/physical_package_id:0
/sys/devices/system/cpu/cpu26/topology/thread_siblings:00000000,00000000,04000000,04000000
/sys/devices/system/cpu/cpu26/topology/thread_siblings_list:26,58
/sys/devices/system/cpu/cpu27/topology/core_cpus:00000000,00000000,08000000,08000000
/sys/devices/system/cpu/cpu27/topology/core_cpus_list:27,59
/sys/devices/system/cpu/cpu27/topology/core_id:3
/sys/devices/system/cpu/cpu27/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu27/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu27/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu27/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu27/topology/die_id:0
/sys/devices/system/cpu/cpu27/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu27/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu27/topology/physical_package_id:0
/sys/devices/system/cpu/cpu27/topology/thread_siblings:00000000,00000000,08000000,08000000
/sys/devices/system/cpu/cpu27/topology/thread_siblings_list:27,59
/sys/devices/system/cpu/cpu28/topology/core_cpus:00000000,00000000,10000000,10000000
/sys/devices/system/cpu/cpu28/topology/core_cpus_list:28,60
/sys/devices/system/cpu/cpu28/topology/core_id:4
/sys/devices/system/cpu/cpu28/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu28/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu28/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu28/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu28/topology/die_id:0
/sys/devices/system/cpu/cpu28/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu28/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu28/topology/physical_package_id:0
/sys/devices/system/cpu/cpu28/topology/thread_siblings:00000000,00000000,10000000,10000000
/sys/devices/system/cpu/cpu28/topology/thread_siblings_list:28,60
/sys/devices/system/cpu/cpu29/topology/core_cpus:00000000,00000000,20000000,20000000
/sys/devices/system/cpu/cpu29/topology/core_cpus_list:29,61
/sys/devices/system/cpu/cpu29/topology/core_id:5
/sys/devices/system/cpu/cpu29/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu29/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu29/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
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/sys/devices/system/cpu/cpu4/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu4/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu4/topology/die_id:0
/sys/devices/system/cpu/cpu4/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu4/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu4/topology/physical_package_id:0
/sys/devices/system/cpu/cpu4/topology/thread_siblings:00000000,00000000,00000010,00000010
/sys/devices/system/cpu/cpu4/topology/thread_siblings_list:4,36
/sys/devices/system/cpu/cpu50/topology/core_cpus:00000000,00000000,00040000,00040000
/sys/devices/system/cpu/cpu50/topology/core_cpus_list:18,50
/sys/devices/system/cpu/cpu50/topology/core_id:2
/sys/devices/system/cpu/cpu50/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu50/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu50/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
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/sys/devices/system/cpu/cpu50/topology/die_id:0
/sys/devices/system/cpu/cpu50/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
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/sys/devices/system/cpu/cpu50/topology/physical_package_id:0
/sys/devices/system/cpu/cpu50/topology/thread_siblings:00000000,00000000,00040000,00040000
/sys/devices/system/cpu/cpu50/topology/thread_siblings_list:18,50
/sys/devices/system/cpu/cpu51/topology/core_cpus:00000000,00000000,00080000,00080000
/sys/devices/system/cpu/cpu51/topology/core_cpus_list:19,51
/sys/devices/system/cpu/cpu51/topology/core_id:3
/sys/devices/system/cpu/cpu51/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
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/sys/devices/system/cpu/cpu51/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
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/sys/devices/system/cpu/cpu51/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
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/sys/devices/system/cpu/cpu52/topology/core_cpus:00000000,00000000,00100000,00100000
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/sys/devices/system/cpu/cpu52/topology/core_id:4
/sys/devices/system/cpu/cpu52/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
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/sys/devices/system/cpu/cpu52/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
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/sys/devices/system/cpu/cpu52/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu52/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu52/topology/physical_package_id:0
/sys/devices/system/cpu/cpu52/topology/thread_siblings:00000000,00000000,00100000,00100000
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/sys/devices/system/cpu/cpu53/topology/core_cpus:00000000,00000000,00200000,00200000
/sys/devices/system/cpu/cpu53/topology/core_cpus_list:21,53
/sys/devices/system/cpu/cpu53/topology/core_id:5
/sys/devices/system/cpu/cpu53/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu53/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu53/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu53/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu53/topology/die_id:0
/sys/devices/system/cpu/cpu53/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu53/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu53/topology/physical_package_id:0
/sys/devices/system/cpu/cpu53/topology/thread_siblings:00000000,00000000,00200000,00200000
/sys/devices/system/cpu/cpu53/topology/thread_siblings_list:21,53
/sys/devices/system/cpu/cpu54/topology/core_cpus:00000000,00000000,00400000,00400000
/sys/devices/system/cpu/cpu54/topology/core_cpus_list:22,54
/sys/devices/system/cpu/cpu54/topology/core_id:6
/sys/devices/system/cpu/cpu54/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu54/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu54/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu54/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu54/topology/die_id:0
/sys/devices/system/cpu/cpu54/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu54/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu54/topology/physical_package_id:0
/sys/devices/system/cpu/cpu54/topology/thread_siblings:00000000,00000000,00400000,00400000
/sys/devices/system/cpu/cpu54/topology/thread_siblings_list:22,54
/sys/devices/system/cpu/cpu55/topology/core_cpus:00000000,00000000,00800000,00800000
/sys/devices/system/cpu/cpu55/topology/core_cpus_list:23,55
/sys/devices/system/cpu/cpu55/topology/core_id:7
/sys/devices/system/cpu/cpu55/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu55/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu55/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu55/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu55/topology/die_id:0
/sys/devices/system/cpu/cpu55/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu55/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu55/topology/physical_package_id:0
/sys/devices/system/cpu/cpu55/topology/thread_siblings:00000000,00000000,00800000,00800000
/sys/devices/system/cpu/cpu55/topology/thread_siblings_list:23,55
/sys/devices/system/cpu/cpu56/topology/core_cpus:00000000,00000000,01000000,01000000
/sys/devices/system/cpu/cpu56/topology/core_cpus_list:24,56
/sys/devices/system/cpu/cpu56/topology/core_id:0
/sys/devices/system/cpu/cpu56/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu56/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu56/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu56/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu56/topology/die_id:0
/sys/devices/system/cpu/cpu56/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu56/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu56/topology/physical_package_id:0
/sys/devices/system/cpu/cpu56/topology/thread_siblings:00000000,00000000,01000000,01000000
/sys/devices/system/cpu/cpu56/topology/thread_siblings_list:24,56
/sys/devices/system/cpu/cpu57/topology/core_cpus:00000000,00000000,02000000,02000000
/sys/devices/system/cpu/cpu57/topology/core_cpus_list:25,57
/sys/devices/system/cpu/cpu57/topology/core_id:1
/sys/devices/system/cpu/cpu57/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu57/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu57/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu57/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu57/topology/die_id:0
/sys/devices/system/cpu/cpu57/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu57/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu57/topology/physical_package_id:0
/sys/devices/system/cpu/cpu57/topology/thread_siblings:00000000,00000000,02000000,02000000
/sys/devices/system/cpu/cpu57/topology/thread_siblings_list:25,57
/sys/devices/system/cpu/cpu58/topology/core_cpus:00000000,00000000,04000000,04000000
/sys/devices/system/cpu/cpu58/topology/core_cpus_list:26,58
/sys/devices/system/cpu/cpu58/topology/core_id:2
/sys/devices/system/cpu/cpu58/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu58/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu58/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu58/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu58/topology/die_id:0
/sys/devices/system/cpu/cpu58/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu58/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu58/topology/physical_package_id:0
/sys/devices/system/cpu/cpu58/topology/thread_siblings:00000000,00000000,04000000,04000000
/sys/devices/system/cpu/cpu58/topology/thread_siblings_list:26,58
/sys/devices/system/cpu/cpu59/topology/core_cpus:00000000,00000000,08000000,08000000
/sys/devices/system/cpu/cpu59/topology/core_cpus_list:27,59
/sys/devices/system/cpu/cpu59/topology/core_id:3
/sys/devices/system/cpu/cpu59/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu59/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu59/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu59/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu59/topology/die_id:0
/sys/devices/system/cpu/cpu59/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu59/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu59/topology/physical_package_id:0
/sys/devices/system/cpu/cpu59/topology/thread_siblings:00000000,00000000,08000000,08000000
/sys/devices/system/cpu/cpu59/topology/thread_siblings_list:27,59
/sys/devices/system/cpu/cpu5/topology/core_cpus:00000000,00000000,00000020,00000020
/sys/devices/system/cpu/cpu5/topology/core_cpus_list:5,37
/sys/devices/system/cpu/cpu5/topology/core_id:5
/sys/devices/system/cpu/cpu5/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu5/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu5/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu5/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu5/topology/die_id:0
/sys/devices/system/cpu/cpu5/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu5/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu5/topology/physical_package_id:0
/sys/devices/system/cpu/cpu5/topology/thread_siblings:00000000,00000000,00000020,00000020
/sys/devices/system/cpu/cpu5/topology/thread_siblings_list:5,37
/sys/devices/system/cpu/cpu60/topology/core_cpus:00000000,00000000,10000000,10000000
/sys/devices/system/cpu/cpu60/topology/core_cpus_list:28,60
/sys/devices/system/cpu/cpu60/topology/core_id:4
/sys/devices/system/cpu/cpu60/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu60/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu60/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu60/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu60/topology/die_id:0
/sys/devices/system/cpu/cpu60/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu60/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu60/topology/physical_package_id:0
/sys/devices/system/cpu/cpu60/topology/thread_siblings:00000000,00000000,10000000,10000000
/sys/devices/system/cpu/cpu60/topology/thread_siblings_list:28,60
/sys/devices/system/cpu/cpu61/topology/core_cpus:00000000,00000000,20000000,20000000
/sys/devices/system/cpu/cpu61/topology/core_cpus_list:29,61
/sys/devices/system/cpu/cpu61/topology/core_id:5
/sys/devices/system/cpu/cpu61/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu61/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu61/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu61/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu61/topology/die_id:0
/sys/devices/system/cpu/cpu61/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu61/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu61/topology/physical_package_id:0
/sys/devices/system/cpu/cpu61/topology/thread_siblings:00000000,00000000,20000000,20000000
/sys/devices/system/cpu/cpu61/topology/thread_siblings_list:29,61
/sys/devices/system/cpu/cpu62/topology/core_cpus:00000000,00000000,40000000,40000000
/sys/devices/system/cpu/cpu62/topology/core_cpus_list:30,62
/sys/devices/system/cpu/cpu62/topology/core_id:6
/sys/devices/system/cpu/cpu62/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu62/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu62/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu62/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu62/topology/die_id:0
/sys/devices/system/cpu/cpu62/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu62/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu62/topology/physical_package_id:0
/sys/devices/system/cpu/cpu62/topology/thread_siblings:00000000,00000000,40000000,40000000
/sys/devices/system/cpu/cpu62/topology/thread_siblings_list:30,62
/sys/devices/system/cpu/cpu63/topology/core_cpus:00000000,00000000,80000000,80000000
/sys/devices/system/cpu/cpu63/topology/core_cpus_list:31,63
/sys/devices/system/cpu/cpu63/topology/core_id:7
/sys/devices/system/cpu/cpu63/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu63/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu63/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu63/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu63/topology/die_id:0
/sys/devices/system/cpu/cpu63/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu63/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu63/topology/physical_package_id:0
/sys/devices/system/cpu/cpu63/topology/thread_siblings:00000000,00000000,80000000,80000000
/sys/devices/system/cpu/cpu63/topology/thread_siblings_list:31,63
/sys/devices/system/cpu/cpu6/topology/core_cpus:00000000,00000000,00000040,00000040
/sys/devices/system/cpu/cpu6/topology/core_cpus_list:6,38
/sys/devices/system/cpu/cpu6/topology/core_id:6
/sys/devices/system/cpu/cpu6/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu6/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu6/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu6/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu6/topology/die_id:0
/sys/devices/system/cpu/cpu6/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu6/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu6/topology/physical_package_id:0
/sys/devices/system/cpu/cpu6/topology/thread_siblings:00000000,00000000,00000040,00000040
/sys/devices/system/cpu/cpu6/topology/thread_siblings_list:6,38
/sys/devices/system/cpu/cpu7/topology/core_cpus:00000000,00000000,00000080,00000080
/sys/devices/system/cpu/cpu7/topology/core_cpus_list:7,39
/sys/devices/system/cpu/cpu7/topology/core_id:7
/sys/devices/system/cpu/cpu7/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu7/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu7/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu7/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu7/topology/die_id:0
/sys/devices/system/cpu/cpu7/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu7/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu7/topology/physical_package_id:0
/sys/devices/system/cpu/cpu7/topology/thread_siblings:00000000,00000000,00000080,00000080
/sys/devices/system/cpu/cpu7/topology/thread_siblings_list:7,39
/sys/devices/system/cpu/cpu8/topology/core_cpus:00000000,00000000,00000100,00000100
/sys/devices/system/cpu/cpu8/topology/core_cpus_list:8,40
/sys/devices/system/cpu/cpu8/topology/core_id:0
/sys/devices/system/cpu/cpu8/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu8/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu8/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu8/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu8/topology/die_id:0
/sys/devices/system/cpu/cpu8/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu8/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu8/topology/physical_package_id:0
/sys/devices/system/cpu/cpu8/topology/thread_siblings:00000000,00000000,00000100,00000100
/sys/devices/system/cpu/cpu8/topology/thread_siblings_list:8,40
/sys/devices/system/cpu/cpu9/topology/core_cpus:00000000,00000000,00000200,00000200
/sys/devices/system/cpu/cpu9/topology/core_cpus_list:9,41
/sys/devices/system/cpu/cpu9/topology/core_id:1
/sys/devices/system/cpu/cpu9/topology/core_siblings:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu9/topology/core_siblings_list:0-63
/sys/devices/system/cpu/cpu9/topology/die_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu9/topology/die_cpus_list:0-63
/sys/devices/system/cpu/cpu9/topology/die_id:0
/sys/devices/system/cpu/cpu9/topology/package_cpus:00000000,00000000,ffffffff,ffffffff
/sys/devices/system/cpu/cpu9/topology/package_cpus_list:0-63
/sys/devices/system/cpu/cpu9/topology/physical_package_id:0
/sys/devices/system/cpu/cpu9/topology/thread_siblings:00000000,00000000,00000200,00000200
/sys/devices/system/cpu/cpu9/topology/thread_siblings_list:9,41
How can I solve this?

best regards
Max
Max
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scottgus1
Site Moderator
Posts: 20945
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Windows, Linux

Re: Cannot set more than 8 CPU with Threadripper 2990WX

Post by scottgus1 »

If "I cannot assign more than 8 CPU" is based on the red/green decoration, you can ignore the decoration.

If you can't start a guest with more than 8 processors, send us a guest log:

Start the guest from full normal shutdown, not save-state. Run until you see the problem happen, then shut down the guest from within the guest OS if possible. If not possible, close the Virtualbox window for the guest with the Power Off option set.

Right-click the guest in the main Virtualbox window's guest list, choose Show Log. Save the far left tab's log, zip it, and post the zip file, using the forum's Upload Attachment tab.

Note that more processors will slow down a guest, due to extra scheduling oversight on the host OS. Only put more processors in if he guest OS has extra software installed that will make use of the extra processors. Modern OS's are quite happy with two processors. Start with two, check performance, then increase if needed.
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mastupristi
Posts: 16
Joined: 21. Jul 2009, 08:41
Primary OS: Ubuntu other
VBox Version: OSE Debian
Guest OSses: Windows XP, linux 32 nit, linux 64 bit

Re: Cannot set more than 8 CPU with Threadripper 2990WX

Post by mastupristi »

scottgus1 wrote:If "I cannot assign more than 8 CPU" is based on the red/green decoration, you can ignore the decoration.

If you can't start a guest with more than 8 processors, send us a guest log:
[...]
Note that more processors will slow down a guest, due to extra scheduling oversight on the host OS. Only put more processors in if he guest OS has extra software installed that will make use of the extra processors. Modern OS's are quite happy with two processors. Start with two, check performance, then increase if needed.
Yes, I avoided putting the slider in the red decoration (and get the warning).
I can start the VM with 16 processors, but I have 32 core (and 64 thread), and I would need to assign more than 8 or 16 processors to VMs (at least 20, but better 32).
I use VMs to build linux systems/distributions using Yocto and/or Buildroot. Having twice as many processors halves the build time.

Is that of 8 or 16 processors a technical limit or a number like any other?

best regards
Max
Max
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scottgus1
Site Moderator
Posts: 20945
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Windows, Linux

Re: Cannot set more than 8 CPU with Threadripper 2990WX

Post by scottgus1 »

According to some info from the gurus in the private Volunteers forum, the slider is the number of different threads Virtualbox makes to run the guest.

And the number of threads work best when each thread is on its own core and not fighting another Virtualbox thread for hyperthreading (or AMD equivalent) by getting two Virtualbox threads on one host core. Thus the green/red half & half.

And finally, the result from the gurus was "relax". :lol:

So just pick a number and go for it. If you want more than 16, use this command:

vboxmanage modifyvm "vm name" --cpus <cpucount>

If your results are good, good. If bad, adjust the number as needed. Just as long as your guest OS responds to processor count change, experimentation should be fine.
Top
mastupristi
Posts: 16
Joined: 21. Jul 2009, 08:41
Primary OS: Ubuntu other
VBox Version: OSE Debian
Guest OSses: Windows XP, linux 32 nit, linux 64 bit

[SOLVED] Re: Cannot set more than 8 CPU with Threadripper 2990WX

Post by mastupristi »

scottgus1 wrote:If you want more than 16, use this command:

vboxmanage modifyvm "vm name" --cpus <cpucount>

If your results are good, good. If bad, adjust the number as needed. Just as long as your guest OS responds to processor count change, experimentation should be fine.
Done, and works :)

thanks

best regards
Max
Max
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scottgus1
Site Moderator
Posts: 20945
Joined: 30. Dec 2009, 20:14
Primary OS: MS Windows 10
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Windows, Linux

Re: Cannot set more than 8 CPU with Threadripper 2990WX

Post by scottgus1 »

Great! Glad you're up and running.
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