[DRMAA-WG] Meeting Minutes - Conference call - May 18th - 19:00 UTC
Peter Tröger
peter at troeger.eu
Fri May 20 03:50:39 CDT 2011
Participants: Roger, Daniel G. , Andre (SAGA), Mariusz
> 2. Review of advance reservation research work by Mariusz
> (http://bit.ly/kLwNe7)
- MOAB not part of the analysis, but only commercial version of MAUI
- Daniel G. approved analysis result for SGE
- Available and understood: reservationName, startTime, endTime, minSlots, maxSlots
- machineOS, machineArch: Supported in all systems, but still demand from group to make it optional
- INFINITY in endTime not broadly covered, to be removed
- candidateHosts broadly supported
- half of the systems does not support automated choice of a subset of the given machine list
- only all-or-nothing semantic can be promised
- subset semantic to be added as MAY feature of an implementation
- minPhysMemory
- Difference between demand for according node, and true reservation of given memory amount
- Implementation detail from DRMAA perspective
- ReservationInfo attributes are fine, reservationOwner not broadly supported -> remove
- SLURM and LoadLeveler support only node, not slot reservation -> proposal to report 'reservation granularity' as capability
> 3. Discussion of usersACL proposal by Mariusz
- Defines list of users that are allowed to use the AR
- SAGA has notion of permissions and user ID's, can live with / without it
- Andre: Another typical use case for AR is co-scheduling
- Problem how to transport AR ID from creator application to consumer application
(mismatch with DRMAA session concept)
- In out-of-the-box installation, standard users cannot create AR's
- Hot discussion without agreement, deferred to public poll on the mailing list
> 4. Discussion of NOW constant proposal
- According to Mariusz investigation, only partial support for NOW in startTime -> to be optional
>
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