number of cores cpu

[Aouad]

Hi i am new member,

i have 2 pcs and i want to see the number of cores. So, for the 1st pc i type

grep cores /proc/cpuinfo

and i receive:

cpu cores : 2
cpu cores : 2
cpu cores : 2
cpu cores : 2

and for the second pc i type

grep cores /proc/cpuinfo

and receive:

cpu cores : 1
cpu cores : 1
cpu cores : 1
cpu cores : 1

So, the numbers of cores for my 1st pc is 8 cores and for the 2nd 4 cores

Actually, i cannot understand why when i type for the 1st pc

grep "core id" /proc/cpuinfo

i receive:

core id : 3
core id : 3
core id : 0
core id : 0

and for the 2nd pc i receive :

core id : 0
core id : 1
core id : 1
core id : 0

So, do i have 8 cores for the 1st pc and 4 cores for the second OR 4 cores for both pcs

If i have 8 cores for the 1st and 4 for the 2nd, why i dont receive 8 core ids for the 1st pc

Thanks.

[oz]

Hello and welcome!

Check this thread for more details and info on getting a cpu core count:

http://www.linuxforums.org/forum/red...ount-rhel.html

What are the make and model numbers of your processors?

[white_hound]

1-st PC has 2 CPU cores.
2-nd PC has 1 CPU core.
Open /proc/cpuinfo with no grep - it is human readable.
Additionally, you might want to mind the hyper-threading, that distinguishes between core and (hardware) thread.

[Aouad]

1-st PC has 2 CPU cores.
2-nd PC has 1 CPU core.
Open /proc/cpuinfo with no grep - it is human readable.
Additionally, you might want to mind the hyper-threading, that distinguishes between core and (hardware) thread.

Both pcs have 4 processors. So, the 2nd has 4 cores and the 1st 8 cores