Hi all -
As discussed at the December developer's meeting, a number of us have been
working on a framework in OMPI to encompass the RTE resources (typically
provided by ORTE). This follows on work Oak Ridge did on the ORCA layer,
which ended up having a number of technical challenges and was dropped for
a simpler approach.
The interface is still a work in process and designed around the concept
that the ORTE component is a thin renaming around ORTE itself (this was
one of the points the ORTE developers felt strongly about). We think it's
ready for comments and coming into the trunk, so are trying to get it
looked at by a broader community. The Mercurial repository is available
This work is focussed only on the creation of a framework to encompass the
RTE interface between OMPI and ORTE. There are currently two components:
the ORTE component and a test component implemented over PMI. The PMI
component is only really useful if ORTE is disabled at autogen time with
the --no-orte option to autogen. Future work to build against an external
OMPI (in progress, on a different branch) will make using non-orte
components slightly more useful.
Anyway, if there aren't any major comments, I'll plan on bringing this
work to the trunk this weekend (Jan 26/27).
Brian W. Barrett
Scalable System Software Group
Sandia National Laboratories
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