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Hiya,
On 21/11/10 03:42, Brice Goglin wrote:
> Thanks. The tarball looks good. It seems to report everything as
> expected. By the way, it's funny to see a L4 cache without any L3,
> there's likely something to fix in the device-tree code, but it should
> not be very important.
Understood.
> So, it looks like running lstopo on the tarball doesn't work fine. It
> doesn't see any caches (which may be related to /proc/device-tree/ too).
Yeah, it's also not showing the SMT's either.
> Could you extract the tarball under /tmp and run
> "HWLOC_FSROOT=/tmp/sles10sp1-ppc64 lstopo" ? I assume you will not see
> any caches.
Correct - this is what it looks like:
Machine (15GB)
NUMANode #0 (phys=0 7680MB)
PU #0 (phys=0)
PU #1 (phys=1)
PU #2 (phys=2)
PU #3 (phys=3)
NUMANode #1 (phys=1 8000MB)
PU #4 (phys=4)
PU #5 (phys=5)
PU #6 (phys=6)
PU #7 (phys=7)
This is what it's meant to look like:
Machine (15GB)
NUMANode #0 (phys=0 7680MB) + L4 #0 (32MB)
L2 #0 (4096KB) + L1 #0 (64KB) + Core #0
PU #0 (phys=0)
PU #1 (phys=1)
L2 #1 (4096KB) + L1 #1 (64KB) + Core #1
PU #2 (phys=2)
PU #3 (phys=3)
NUMANode #1 (phys=1 8000MB) + L4 #1 (32MB)
L2 #2 (4096KB) + L1 #2 (64KB) + Core #2
PU #4 (phys=4)
PU #5 (phys=5)
L2 #3 (4096KB) + L1 #3 (64KB) + Core #3
PU #6 (phys=6)
PU #7 (phys=7)
> If so, first check that /tmp/sles10sp1-ppc64/proc/device-tree/
> seems to contain what's also in /proc/device-tree/ . Then
> reconfigure with --enable-debug and send the whole stdout/stderr
> of "HWLOC_FSROOT=/tmp/sles10sp1-ppc64 lstopo"
OK - have to go and check out now so no more Internet access until
I get to LA tonight, so that will need to wait I'm afraid! :-(
> If you can get me access to this machine, it would help a lot too :)
I'll see what I can do when I'm back in Melbourne. :-)
cheers!
Chris
- --
Christopher Samuel - Senior Systems Administrator
VLSCI - Victorian Life Sciences Computational Initiative
Email: [email protected] Phone: +61 (0)3 903 55545
http://www.vlsci.unimelb.edu.au/
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