Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: Re: [OMPI users] Memory mapped memory
From: Durga Choudhury (dpchoudh_at_[hidden])
Date: 2011-10-17 10:09:05


If the mmap() pages are created with MAP_SHARED, then they should be
sharable with other processes in the same node, isn't it? MPI
processes are just like any other process, aren't they? Will one of
the MPI Gurus please comment?

Regards
Durga

On Mon, Oct 17, 2011 at 9:45 AM, Gabriele Fatigati <g.fatigati_at_[hidden]> wrote:
> More in detail,
> is it possible use mmap() function from MPI process and sharing these memory
> between others processes?
>
> 2011/10/13 Gabriele Fatigati <g.fatigati_at_[hidden]>
>>
>> Dear OpenMPI users and developers,
>> is there some limitation or issues to use memory mapped memory into MPI
>> processes? I would like to share some memory in a node without using OpenM.
>> Thanks a lot.
>>
>> --
>> 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
>
>
>
> --
> 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
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>