RIght, my mistake, I missed the new cid generation in the comm duplicator
calls. Thanks a lot!
--
Abhisek
Live Long and Prosper
On Mon, Aug 31, 2015 at 9:25 AM, Todd Kordenbrock
wrote:
> Hi Abhisek,
>
> Both the portals4 and pt2pt OSC components call ompi_comm_dup() near the
> beginning of component_select(), so each window has it's own communicator.
> The duplicated communicator has a unique contextid and therefore the window
> has unique match bits/hash key.
>
> Thanks,
> todd
>
>
>
> On Mon, Aug 31, 2015 at 5:59 AM, Jeff Squyres (jsquyres) <
> jsquy...@cisco.com> wrote:
>
>> On Aug 27, 2015, at 11:55 AM, abhisek...@gmail.com wrote:
>> >
>> > I want to know if it is allowed in MPI one-sided communication to open
>> multiple windows simultaneously using the same communicator.
>>
>> Yes.
>>
>> > The standard does not seem to forbid it as far as I can see, but when I
>> look at the open mpi osc components (rdma and portals4) it looks like a
>> window is always identified by the context-id in the communicator (for
>> example the match bits in portals4 component use the communicator cid to
>> distinguish among windows, there is a hash-table in the rdma component that
>> uses the communicator cid as the key to store open modules). It seems to me
>> that these components may not be able to support multiple open windows
>> opened with the same communicator.
>>
>> Nathan/Todd will have to answer that. I'd be (very) surprised if the
>> code did not support multiple windows that were generated from the same
>> communicator.
>>
>> --
>> Jeff Squyres
>> jsquy...@cisco.com
>> For corporate legal information go to:
>> http://www.cisco.com/web/about/doing_business/legal/cri/
>>
>> ___
>> users mailing list
>> us...@open-mpi.org
>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users
>> Link to this post:
>> http://www.open-mpi.org/community/lists/users/2015/08/27509.php
>>
>
>
> ___
> users mailing list
> us...@open-mpi.org
> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users
> Link to this post:
> http://www.open-mpi.org/community/lists/users/2015/08/27510.php
>
