On Mar 5, 2008, at 1:50 PM, Greg Watson wrote:
Looking back through the mailing list, I can only see two references that seem relevant to this. One was titled "Major reduction in ORTE" and does allude to the event model changes. The other "OMPI/ORTE and tools" talks about "alternative methods of interaction". Neither mentions changes to the spawning and
I thought that the subject "major reduction in ORTE" would have been an eyebrow-raiser. I'm not trying to be snarky; my only point is that if you have a stake in using ORTE, it would probably be worthwhile to monitor what is happening and raise your hand / be part of the community to help shape its direction. We all know that open source ! = free.
Perhaps you and Brad can have lunch every once in a while to discuss ORTE. :-)
I/O forwarding functionality (that I can see),
FWIW: nothing has changed with regards to I/O forwarding functionality or APIs (other than a big pile of bug fixes somewhere in the middle of the 1.2 series). Ralph mentioned recently that it doesn't work beyond the model that mpirun uses (e.g., having multiple taps for the same stdout), but it *never* has. We have some open bugs in trac about this, but no one has fixed them yet.
If I ever get the time, I'd like to do *lots* of things with IOF, but I don't know when that will happen...
or that this would be the exclusive mechanism for interaction. In the future (assuming there are more changes), it would be helpful if there was at least some information about what specific API's are being removed.
I can't speak for Ralph, but I think if anyone had asked, I'm guessing that he would have been happy to have provided whatever information he had. However, I'm not entirely sure that it was possible to know everything that was going to happen when first embarking on this "ORTE reduction" journey -- I seem to recall that questions and problems arose along the way that caused shifting of ORTE plans during the reduction / reorganization.
I think there were *some* updates about this stuff on the mailing list and on the weekly teleconferences, but I wasn't aware that anyone outside of OMPI cared about the ORTE underneath OMPI -- so at least I never bothered to re-broadcast outside of our group... :-\
-- Jeff Squyres Cisco Systems
