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Subject: Re: [OMPI devel] MPI_Bcast using TIPC
From: Xin He (xin.i.he_at_[hidden])
Date: 2011-09-29 07:47:17


Thank you all for replying, I think I know where to start now. I will
post when I get more information :)

/Xin

On 09/27/2011 05:49 PM, Christian Siebert wrote:
> Hi Xin,
>
> I think you are referring to the multicast functionality of TIPC, right?
> That would be great if it works properly. You might also want to
> compare to existing work that has been done some years ago - see this
> anncouncement:
>
> http://www.open-mpi.org/community/lists/devel/2007/03/1358.php
>
> Good luck!
>
> Christian
>
>> Hi all,
>>
>> sorry that it takes so long for paper works of TIPC BTL. Hopefully I
>> can get some feedback this week.
>>
>> However, I would like to do some work while waiting. For future
>> work, I would like to add TIPC_broadcast
>> to support MPI_Bcast. But as I looked into TCP BTL code, I could not
>> find any code doing broadcast. Does
>> that mean MPI_Bcast is actually done by sending one by one? In that
>> case, in I want to add actual broadcast
>> support, which part should I change, I guess not just adding a BTL
>> but also modify PML as well?
>>
>> Thank you in advance!
>>
>> /Xin
>