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Subject: Re: [OMPI devel] Scheduled merge of ORTE devel branch to trunk
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2008-02-12 11:54:52


Ralph --

We talked about this on the OMPI con call today and everyone agrees
that this seems to be a good plan. Just as a safety net: if the merge
goes disastrously wrong and you're unavailable Thu/Fri this week, we
can just back it out and try again later.

Thanks!

On Feb 11, 2008, at 11:37 PM, Ralph Castain wrote:

> Hello all
>
> Per last week's telecon, we planned the merge of the latest ORTE devel
> branch to the OMPI trunk for after Sun had committed its C++
> changes. That
> happened over the weekend.
>
> Therefore, based on the requests at the telecon, I will be merging the
> current ORTE devel branch to the trunk on Wed 2/13. I'll make the
> commit
> around 4:30pm Eastern time - will send out warning shortly before
> the commit
> to let you know it is coming. I'll advise of any delays.
>
> This will be a snapshot of that devel branch - it will include the
> upgraded
> launch system, remove the GPR, add the new tool communication
> library, allow
> arbitrary mpiruns to interconnect, supports the revamped hostfile and
> dash-host behaviors per the wiki, etc.
>
> However, it is incomplete and contains some known flaws. For example,
> totalview support has not been enabled yet. Comm_spawn, which is
> currently
> broken on the OMPI trunk, is fixed - but singleton comm_spawn remains
> broken. I am in the process of establishing support for direct and
> standalone launch capabilities, but those won't be in the merge. I
> have
> updated all of the launchers, but can only certify the SLURM, TM,
> and RSH
> ones to work - the Xgrid launcher is known to not compile, so if you
> have
> Xgrid on your Mac, you need to tell the build system to not build that
> component.
>
> This will give you a chance to look over the new arch, though, and I
> understand that people would like to begin having a chance to test and
> review the revised code. Hopefully, you will find most of the bugs
> to be
> minor.
>
> Please advise of any concerns about this merge. The schedule is
> totally
> driven by the requests of the MPI team members (delaying the merge
> has no
> impact on ORTE development), so requests to shift the schedule
> should be
> discussed amongst the community.
>
> Thanks
> Ralph
>
>
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-- 
Jeff Squyres
Cisco Systems