[SAGA-RG] Fwd (mamonski at man.poznan.pl): Re: Fwd (kielmann at cs.vu.nl): Re: Face-to-Face Meeting

Wed Jan 13 13:13:35 CST 2010

FYI, 

  Andre.

----- Forwarded message from Mariusz Mamo??ski <mamonski at man.poznan.pl> -----

> Date: Thu, 7 Jan 2010 15:16:06 +0100
> Subject: Re: Fwd (kielmann at cs.vu.nl): Re: [SAGA-RG] Face-to-Face Meeting
> From: Mariusz Mamo??ski <mamonski at man.poznan.pl>
> To: Andre Merzky <andre at merzky.net>, Thilo Kielmann <kielmann at cs.vu.nl>,
> 	Peter Tröger <peter at troeger.eu>
> Cc: Ariel Oleksiak <ariel at man.poznan.pl>
> 
> Hi,
> 
> As the late follow up let me also share with our experience on
> exposing advance reservations capabilities of the batch systems:
> 
> http://fury.man.poznan.pl/~mmamonski/wiki/index.php/DRMAAv2/Advance_Reservation
> 
> The similarity with the DRMAAv2.0 look-and-feel of this interface is
> intended ;-)
> 
> The main differences with SAGA approach are:
> - we have no reservation state model. The rationale behind this is
> that, in opposite to jobs, advance reservations are quite predictable
> (you always know the start and end time of the reservation) so we do
> not see any sense in polling whether reservation is in RUNNING state.
> The only unpredictable state is an error state (e.g. reserved host is
> down) but this is not  easily detectable in majority of the DRMS we
> tested.
> - we proposed some best-effort semantics :
>   * the requested CPU count (here called "slotsCount") can be
> expressed as a range value and the system is obligated to reserve as
> much resources as possible (constrained by the given range)
>   * in addition to the reservation start and end time one can specify
> also the reservation duration (shorter than the endTime - startTime).
> In this case system tries to book resources in the earliest possible
> time (having in mind the other resource requirements, e.g.:
> slotsCount)
> 
> All the best,
> 
> On Fri, Dec 11, 2009 at 3:17 PM, Andre Merzky <andre at merzky.net> wrote:
> > FYI, Andre.
> >
> > --
> > Nothing is ever easy.
> >
> >
> > ---------- Forwarded message ----------
> > From: Thilo Kielmann <kielmann at cs.vu.nl>
> > To: Andre Merzky <andre at merzky.net>
> > Date: Wed, 9 Dec 2009 17:01:30 +0100
> > Subject: Re: [SAGA-RG] Face-to-Face Meeting
> >
> > Hi all,
> >
> > unfortunately I cannot make it to the meeting tomorrow :-(
> >
> > Nevertheless, I would like to share the XtreemOS view on
> > resource reservations with you:
> >
> > 1. we have basically split SAGA's job-description into two parts
> > a) a resource-description (everything machine specific)
> > b) an application-description (everything app specific)
> >
> > 2. we have added a notion of reservation, with reservation service
> > and state model
> >
> > 3. jobs can now be submitted either as in SAGA's job package,
> > or indirectly, by getting a reservation first, and then submitting to
> > the reservation...
> >
> > 4. a student of mine has extended this idea to clouds:
> > a) he added image management for virtual machines
> > b) he extended the reservation manager such that VM's can be created
> > "on the fly" of reserving them
> >
> > The gory details are in the attached document. The interesting part
> > starts on page 24, which is Section 5.7.
> >
> > As needed, I can call in tomorrow/friday. Please let me know.
> >
> >
> > Regards,
> >
> >
> > Thilo
> >
> >
> >
> >
> >
> > On Dec 5, 2009, at 11:20 PM, Andre Merzky wrote:
> >
> >> Hi all,
> >>
> >> this is an reminder that we have the DRMAA/SAGA F2F next week,
> >> Thursday/Friday, at gthe Zuse Institute Berlin.  We have booked the
> >> room all day, so I propose we start at Thursday 9am and finish 4pm
> >> Friday.
> >>
> >> As far as agenda goes, we will use up most of the time to sync the
> >> evolution of DRMAA with the evolution of the SAGA job package.
> >> We'll thus cover an overview of both in the beginning, and then
> >> discuss various separate items in depths, such as
> >>
> >>  - object hierarchy
> >>  - job monitoring
> >>  - notification mechanism
> >>  etc.
> >>
> >> This list is at the moment open, and will likely defined by the set
> >> of participants on the fly.
> >>
> >> Please let me know if you need further information or travel advice.
> >>
> >> Cheers, see you soon, Andre.
> >>
> >>
> >>
> >> Quoting [Andre Merzky] (Nov 09 2009):
> >>>
> >>> Hi again,
> >>>
> >>> it seems that December 10/11 is the preferred option for the F2F, so
> >>> we'll go ahead and plan for that date.
> >>>
> >>> So far we have confirmations from five people to attend.  We'd
> >>> appreciate if you could all confirm your attendence by end of
> >>> November.
> >>>
> >>> The meeting will be hosted by Zuse Institute Berlin (thanks!).
> >>> We'll send the exact details around about a week before the meeting.
> >>> To help travel planning: ZIB is about an hour away from Tegel
> >>> Airport, about two hours from Schoenefeld Airport, and about 30
> >>> minutes from Berlin Downtown.  More details, and proposed
> >>> accomodations, are on http://www.zib.de/besucher/index.en.html
> >>> Please let us know if you want us to help organize accomocations.
> >>>
> >>> To re-iterate: this will mostly be a DRMAA meeting, dedicated to
> >>> make progress on the open DRMAA.v2 issues, but we will use part of
> >>> that F2F time to sync with the SAGA approaches which seem to have
> >>> covered some part of the problem space targeted by DRMAA.v2.
> >>>
> >>> Cheers, see you soon in Berlin,
> >>>
> >>>  Andre.
> >>>
> >>>
> >>> Quoting [Andre Merzky] (Oct 24 2009):
> >>>>
> >>>> [ sorry for cross-posting ]
> >>>>
> >>>> Hi DRMAA group, Hi SAGA group,
> >>>>
> >>>> at OGF27, we discussed a joined 2-day face-to-face meeting between
> >>>> the SAGA and DRMAA groups, with focus on the upcoming DRMAA.v2
> >>>> specification.  We expect a SAGA DRMAA extension to be specified in
> >>>> lockstep -- thus the cross-group participation.
> >>>>
> >>>> At the moment, we plan to have that F2F meeting in Berlin (thanks to
> >>>> Alexander for agreeing to host!).  We created a doodle form to poll
> >>>> for possible dates - so for all those who intent to participate in
> >>>> the F2F, please add your availability at:
> >>>>
> >>>>  http://www.doodle.com/m4z7fy888yndp7f7
> >>>>
> >>>> The F2F is open of course, but we may have some space constraints -
> >>>> so please *do* fill the doodle soon, so that we can have a
> >>>> reasonable estimate about participation.
> >>>>
> >>>> Cheers, Andre
> >>
> >> --
> >> Nothing is ever easy.
> >> --
> >>  saga-rg mailing list
> >>  saga-rg at ogf.org
> >>  http://www.ogf.org/mailman/listinfo/saga-rg
> >
> > --
> > Thilo Kielmann
> > http://www.cs.vu.nl/~kielmann/
-- 
Nothing is ever easy.