[vbox-dev] CPU detection problem

[Baxter, Laura]

Hi,

I'm running VirtualBox version 4.3.6 r91406.

The basic problem I am having is that although my (Linux) server has 64 CPUs, (4 nodes each with 16 CPUs/8cores with 2 threads per core), my VM is only allowing me to set 8 processors (max).

My question is, how can i get my VM to "see" all 64 nodes, to increase the VM's processing power?

Is this an issue with NUMA not being supported/implemented?

Below are some details of the VM and the server, I hope someone has some ideas to help, i wonder if this issue affects other users?

Many thanks,

Laura

My VM's uname -a:
Linux grannysmith 3.2.0-57-generic #87-Ubuntu SMP Tue Nov 12 21:35:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

My VM's lscpu output:
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                8
On-line CPU(s) list:   0-7
Thread(s) per core:    1
Core(s) per socket:    8
Socket(s):             1
NUMA node(s):          1
Vendor ID:             AuthenticAMD
CPU family:            21
Model:                 2
Stepping:              0
CPU MHz:               0.000
BogoMIPS:              3248.12
L1d cache:             16K
L1i cache:             64K
L2 cache:              2048K
L3 cache:              12288K
NUMA node0 CPU(s):     0-7

The server i am running it on, uname -a:
Linux xxx.xxx.private 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Dec 13 06:58:20 EST 2013 x86_64 x86_64 x86_64 GNU/Linux

The server's lscpu output:
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                64
On-line CPU(s) list:   0-63
Thread(s) per core:    2
Core(s) per socket:    8
Socket(s):             4
NUMA node(s):          8
Vendor ID:             AuthenticAMD
CPU family:            21
Model:                 2
Stepping:              0
CPU MHz:               2800.117
BogoMIPS:              5599.21
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
NUMA node2 CPU(s):     16-23
NUMA node3 CPU(s):     24-31
NUMA node4 CPU(s):     32-39
NUMA node5 CPU(s):     40-47
NUMA node6 CPU(s):     48-55
NUMA node7 CPU(s):     56-63
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