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Subject: Re: [OMPI devel] [EXTERNAL] Consequence of bind-to-core by default
From: Barrett, Brian W (bwbarre_at_[hidden])
Date: 2013-12-19 12:23:33


That worked for me.

Brian

On 12/19/13 9:32 AM, "Ralph Castain" <rhc_at_[hidden]> wrote:

>
>
>
>Okay, I think I have these things fixed in r29978 on the trunk - please
>give it a spin and confirm so we can move it to 1.7.4
>
>
>
>On Dec 19, 2013, at 7:54 AM, Barrett, Brian W <bwbarre_at_[hidden]> wrote:
>
>
>On 12/19/13 8:43 AM, "Ralph Castain" <rhc_at_[hidden]> wrote:
>
>
>
>On Dec 19, 2013, at 6:27 AM, Barrett, Brian W <bwbarre_at_[hidden]> wrote:
>
>On 12/19/13 6:59 AM, "Jeff Squyres (jsquyres)" <jsquyres_at_[hidden]>
>wrote:
>
>3. Finally, we're giving a warning saying:
>
>-----
>WARNING: a request was made to bind a process. While the system
>supports binding the process itself, at least one node does NOT
>support binding memory to the process location.
>-----
>
>For both #1 and #3, I wonder if we shouldn't be warning if no binding
>was
>explicitly stated (i.e., we're just using the defaults). Specifically,
>if no binding is specified:
>
>- if we oversubscribe, (possibly) warn about the performance loss of
>oversubscription, and don't bind
>- don't warn about lack of memory binding
>
>
>
>We have a couple machines where memory binding is failing for one reason
>or another. If we're binding by default, we really shouldn't throw
>error
>messages about not being able to bind memory. It's REALLY annoying.
>
>
>
>Just to help me understand a bit better - you are saying that the node
>supports process binding, but not memory binding? I don't see how the
>error appears otherwise, but want to ensure I understand the code path.
>
>
>
>That appears to be the case, yes.
>
>Brian
>
>--
> Brian W. Barrett
> Scalable System Software Group
> Sandia National Laboratories
>
>
>
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>
>
>
>
>
>

--
  Brian W. Barrett
  Scalable System Software Group
  Sandia National Laboratories