Successive alteration of the build system made this option less relevant
and especially less meaningful. However, while removing it sounds like a
desirable cleanup, we have to keep in mind that this will enable all locks
and all memory barriers even in cases where they are not necessary
(via OPAL_WANT_SMP_LOCKS).

Thus, I do not share the enthusiasm of the others. I would prefer to see an
evaluation of the impact on performance, a patch and a little bit more than
1/2 a day to react to it (the proposed deadline seems to be today January
6th) before such a drastic change.

  George.


On Tue, Jan 6, 2015 at 12:05 PM, Ralph Castain <r...@open-mpi.org> wrote:

> +1
>
> > On Jan 6, 2015, at 9:04 AM, Jeff Squyres (jsquyres) <jsquy...@cisco.com>
> wrote:
> >
> > +1
> >
> > On Jan 6, 2015, at 11:55 AM, Howard Pritchard <hpprit...@gmail.com>
> wrote:
> >
> >> I agree.  Please remove this config option.
> >>
> >> 2015-01-06 9:44 GMT-07:00 Nathan Hjelm <hje...@lanl.gov>:
> >>
> >> What: Remove the --disable-smp-locks configure option from master.
> >>
> >> Why: Use of this option produces incorrect results/undefined behavior
> >> when any shared memory BTL is in use. Since BTL usage is enabled even
> >> when using cm for point-to-point this option can never be safely used.
> >>
> >> When: Thurs, Jan 6, 2015
> >>
> >> -Nathan
> >>
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> >
> >
> > --
> > Jeff Squyres
> > jsquy...@cisco.com
> > For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
> >
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