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Subject: Re: [hwloc-users] Difference between HWLOC_OBJ_CORE and HWLOC_OBJ_PU
From: Gabriele Fatigati (g.fatigati_at_[hidden])
Date: 2011-08-09 11:02:38


>There is no difference concerning the cpuset.

It means they have the same logical index?

2011/8/9 Samuel Thibault <samuel.thibault_at_[hidden]>

> Gabriele Fatigati, le Tue 09 Aug 2011 16:58:33 +0200, a écrit :
> > in a non SMT machine, what's the difference between HWLOC_OBJ_CORE
> > and HWLOC_OBJ_PU?
>
> There is no difference concerning the cpuset.
>
> > can I exchange one to other?
>
> If you are absolutely sure that your machine is non SMT, yes. But you
> should take the opportunity of using hwloc to handle SMT machines too by
> choosing CORE or PU depending you want to target cores or individual
> logical processors.
>
> Samuel
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>

-- 
Ing. Gabriele Fatigati
HPC specialist
SuperComputing Applications and Innovation Department
Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
www.cineca.it                    Tel:   +39 051 6171722
g.fatigati [AT] cineca.it