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Subject: Re: [hwloc-devel] hwloc on ARM [Was: hwloc at SC09]
From: Ashley Pittman (ashley_at_[hidden])
Date: 2009-11-24 11:18:36


I did a svn update this morning and the code works fine now.

$ lstopo
System(29MB) + P#0
$

On Sat, 2009-11-14 at 01:56 +0100, Samuel Thibault wrote:
> So at some point the traversal ends up with a NULL pointer, weird. What
> would be useful is output after passing --enable-debug to ./configure .

For reference here is the offending output after building the old
version with --enable-debug

$ lstopo
No cgroup or cpuset found
No cgroup or cpuset found

 * Topology extraction from /proc/cpuinfo *

0 online processors found, with id max 0
0
 * Topology summary *
0 processors (0 max id)
0 sockets
0 cores

 * CPU cpusets *

System(29MB HP=0*0kB )
ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff

Computing the system cpuset by ORing all Proc objects

Applying the system cpuset to all nodes

Removing empty objects except numa nodes and PCI devices
Segmentation fault
$

/proc/cpuinfo contains:

Processor : XScale-IXP42x Family rev 1 (v5l)
BogoMIPS : 266.24
Features : swp half fastmult edsp
CPU implementer : 0x69
CPU architecture: 5TE
CPU variant : 0x0
CPU part : 0x41f
CPU revision : 1
Cache type : undefined 5
Cache clean : undefined 5
Cache lockdown : undefined 5
Cache format : Harvard
I size : 32768
I assoc : 32
I line length : 32
I sets : 32
D size : 32768
D assoc : 32
D line length : 32
D sets : 32

Hardware : Linksys NSLU2
Revision : 0000
Serial : 0000000000000000

-- 
Ashley Pittman, Bath, UK.
Padb - A parallel job inspection tool for cluster computing
http://padb.pittman.org.uk