Hi,

I got the details from hwloc.
I just wanted to know whether cores 0,4 and 2,6 are on  separate dies or the same die?
And I am using 2 Intel Xeon E5450 processors in my compute nodes.

Thanks

On Tue, Feb 21, 2012 at 1:02 PM, Samuel Thibault <samuel.thibault@inria.fr> wrote:
vaibhav dutt, le Tue 21 Feb 2012 19:59:54 +0100, a écrit :
>     The following is the Hardware topology of the compute node I am using, a
>     obtained
>     by using lstopo.
>
>     Machine (16GB)
>       Socket L#0
>         L2 L#0 (6144KB)
>           L1 L#0 (32KB) + Core L#0 + PU L#0 (P#0)
>           L1 L#1 (32KB) + Core L#1 + PU L#1 (P#4)
>         L2 L#1 (6144KB)
>           L1 L#2 (32KB) + Core L#2 + PU L#2 (P#2)
>           L1 L#3 (32KB) + Core L#3 + PU L#3 (P#6)
>       Socket L#1
>         L2 L#2 (6144KB)
>           L1 L#4 (32KB) + Core L#4 + PU L#4 (P#1)
>           L1 L#5 (32KB) + Core L#5 + PU L#5 (P#5)
>         L2 L#3 (6144KB)
>           L1 L#6 (32KB) + Core L#6 + PU L#6 (P#3)
>           L1 L#7 (32KB) + Core L#7 + PU L#7 (P#7)
>
>     It has 4 cores on each socket. But the cores like(0 and 4, 1 and 5 etc.)
>     are to be considered on the same die?

0 and 4 share the same L2 cache, and are on the same socket as 2 and 6.
Use lstopo -.txt, it'll probably be clearer.

Samuel