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Subject: Re: [OMPI devel] Scheduled merge of ORTE devel branch to trunk
From: Doug Tody (dtody_at_[hidden])
Date: 2008-02-12 15:43:58

Hi Ralph -

How extensive are the changes involved in removing the GPR? How hard would
it be for someone to maintain an enhanced version of this as an addon or
compile-time optional module? Thanks.

        - Doug

On Mon, 11 Feb 2008, 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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