Open MPI logo

Open MPI User's Mailing List Archives

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

Subject: Re: [OMPI users] [EXTERNAL] Re: Question regarding osu-benchamarks 3.1.1
From: Jingcha Joba (pukkimonkey_at_[hidden])
Date: 2012-03-01 01:17:40


Aah...
So when openMPI is compile with OFED, and run on a Infiniband/RoCE devices,
I would use the mpi would simply direct to ofed to do point to point calls
in the ofed way?

>
> More specifically: all things being equal, you don't care which is used.
> You just want your message to get to the receiver/target as fast as
> possible. One of the main ideas of MPI is to hide those kinds of details
> from the user. I.e., you call MPI_SEND. A miracle occurs. The message is
> received on the other side.
>
> True. Its just that I am digging into the OFED source code and the ompi
source code,and trying to understand the way these two interact..

>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
>
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>