Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

Subject: [OMPI devel] [Fwd: strong ordering for data registered memory]
From: Terry Dontje (Terry.Dontje_at_[hidden])
Date: 2009-11-11 11:13:15


Sun's IB group has asked me to forward the following email to see if
anyone has any comments on this email.

thanks,

--td
> Subject:
> strong ordering for data registered memory
> From:
> David Brean <David.Brean_at_[hidden]>
> Date:
> Tue, 10 Nov 2009 15:19:26 -0500
>
> To:
> linux-rdma <linux-rdma_at_[hidden]>
>
>
> Some time ago there was an email sent to this group with the subject
> "weak ordering for data registered memory". I don't recall any action
> resulting from this thread. So, I have a question. If a bit were
> defined to specify "strong ordering", perhaps as a "access" flag (see
> ibv_access_flags) and used with ibv_reg_mr(), would that be sufficient
> for (1) client applications that need a HW "guarantee" of writing the
> last byte of an RDMA last and (2) platform implementations that need
> to deliver that feature?
>
> -David
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
> the body of a message to majordomo_at_[hidden]
> More majordomo info at http://vger.kernel.org/majordomo-info.html