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.thiba...@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 >
