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Subject: Re: [hwloc-devel] BGQ empty topology with MPI
From: Daniel Ibanez (dan.a.ibanez_at_[hidden])
Date: 2012-03-21 15:54:08


This is fixed by setting

HWLOC_TOPOLOGY_FLAG_WHOLE_SYSTEM

One of the topology pruning functions disabled by this flag
must have been causing the problem.
Again, this only happens when MPI calls are made alongside hwloc calls.

On Wed, Mar 21, 2012 at 10:17 AM, Daniel Ibanez <dan.a.ibanez_at_[hidden]>wrote:

> Chris: the compute nodes run CNK
>
>
> On Wed, Mar 21, 2012 at 10:08 AM, Daniel Ibanez <dan.a.ibanez_at_[hidden]>wrote:
>
>> Attached is the stderr and stdout from lstopo compiled as you said.
>> I can't run hwloc-gather-topology.sh on the compute nodes
>> since its a script, but I can run it on the front end node.
>>
>>
>> On Wed, Mar 21, 2012 at 3:36 AM, Samuel Thibault <
>> samuel.thibault_at_[hidden]> wrote:
>>
>>> Daniel Ibanez, le Wed 21 Mar 2012 03:37:25 +0100, a écrit :
>>> > Please let me know if theres a hint of what could be causing it,
>>> > where to post, and what info to provide.
>>>
>>> This is already the proper list.
>>>
>>> Please attach the output of lstopo after having given the --enable-debug
>>> option to ./configure and rebuilt completely, to get debugging
>>> output. Also attach the /proc + /sys tarball generated by the installed
>>> script hwloc-gather-topology.sh.
>>>
>>> Samuel
>>>
>>
>>
>>
>> --
>>
>> Dan Ibanez
>>
>
>
>
> --
>
> Dan Ibanez
>

-- 
Dan Ibanez