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Subject: Re: [hwloc-users] hwloc get cpubind function
From: Gabriele Fatigati (g.fatigati_at_[hidden])
Date: 2011-08-11 12:03:38


Hi Samuel,

I'm using as it in OpenMP parallel region:

-------------------------

char* bitmap_string=(char*)malloc(256);

hwloc_bitmap_t set = hwloc_bitmap_alloc();

hwloc_linux_get_tid_cpubind(&topology, tid, set);

hwloc_bitmap_asprintf(&bitmap_string, set);

printf( " bitmap_string: %s from tid: %d \n", bitmap_string[0], tid);

------------------------

2011/8/11 Samuel Thibault <samuel.thibault_at_[hidden]>

> Gabriele Fatigati, le Thu 11 Aug 2011 10:32:23 +0200, a écrit :
> > I'm using hwloc-1.3a1r3606. Now hwloc_get_last_cpu_location() works
> well:
> >
> > thread 0 bind: 0x00000008 as core number 3
> > thread 1 bind: 0x00000800 as core number 11
>
> Good.
>
> > but hwloc_linux_get_tid_cpubind() has still some problems because after
> binding
> > one thread on just one core it give me:
> >
> > thread 0 bind: 0x00000008 as core number 3
> > thread 1 bind: "0x00ffffff" as all available cores!!
>
> How do you use it exactly?
>
> Samuel
> _______________________________________________
> hwloc-users mailing list
> hwloc-users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users
>

-- 
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