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TB-SUPPORT  October 2008

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Subject:

Re: Enabling the gridpp VO (and providing a 72hr queue)

From:

"Ma, M (Mingchao)" <[log in to unmask]>

Reply-To:

Testbed Support for GridPP member institutes <[log in to unmask]>

Date:

Mon, 20 Oct 2008 14:20:48 +0100

Content-Type:

multipart/signed

Parts/Attachments:

Parts/Attachments

text/plain (159 lines) , smime.p7s (159 lines)

Hi Graeme,

I understood what you had said. But I can't tell you why. You will
understand it once you complete the challenge :-)

Cheers,

Mingchao


> -----Original Message-----
> From: Testbed Support for GridPP member institutes [mailto:TB-
> [log in to unmask]] On Behalf Of Graeme Stewart
> Sent: 20 October 2008 14:15
> To: [log in to unmask]
> Subject: Re: Enabling the gridpp VO (and providing a 72hr queue)
> 
> This makes no sense to me. What does having a certain time to respond
> to the security challenge have to do with the wallclock time on the
> site's queues?
> 
> If I can compromise your site it will probably happen <5s after my job
> starts to run, even if I run it in a 7 day queue.
> 
> Graeme
> 
> On Mon, Oct 20, 2008 at 3:11 PM, Ma, M (Mingchao)
> <[log in to unmask]> wrote:
> > Hi All,
> >
> > What I can say at this stage is 72 hours mean sites have 72 hours to
> > complete the security challenge. And if all sites agree that 48 hours
> are
> > enough then I can go with it. But I have to say 24 hours are too
> short since
> > sites have only about 8 working hours to response the challenge
> unless you
> > want to work around the clock.
> >
> > As Jeremy said in his previous email: "But, we want the reference
> point the
> > same across sites to allow responsiveness (and actions taken) across
> sites
> > to be measured in a consistent way." Technically I can go with any
> hours as
> > long as all sites agree upon it. But I have to say that we are better
> to go
> > with 72, 48 is also ok, but 24 is too short.
> >
> > Cheers,
> >
> > Mingchao
> >
> >> -----Original Message-----
> >> From: Testbed Support for GridPP member institutes [mailto:TB-
> >> [log in to unmask]] On Behalf Of Brew, CAJ (Chris)
> >> Sent: 20 October 2008 12:39
> >> To: [log in to unmask]
> >> Subject: Re: Enabling the gridpp VO (and providing a 72hr queue)
> >>
> >> And it doesn't have much meaning for sites that scale but CPU power.
> >>
> >> I have 72hr walltime queues but if you end up on a fast CPU that can
> >> actually be less than 36hrs real time.
> >>
> >> (I know this strikes me as odd as well but it's the way the T1 does
> it
> >> and it does sort of make sense.)
> >>
> >> Yours,
> >> Chris.
> >>
> >> > -----Original Message-----
> >> > From: Testbed Support for GridPP member institutes
> >> > [mailto:[log in to unmask]] On Behalf Of Alessandra Forti
> >> > Sent: 20 October 2008 12:16
> >> > To: [log in to unmask]
> >> > Subject: Re: Enabling the gridpp VO (and providing a 72hr queue)
> >> >
> >> > Hi Jeremy,
> >> >
> >> > I don't understand why 72hours (apaprt from the fact that it has
> been
> >> > the default wall time in yaim for the past 2 years?
> >> >
> >> > cheers
> >> > alessandra
> >> >
> >> > Coles, J (Jeremy) wrote:
> >> > > Dear All
> >> > >
> >> > > Thank you to all sites that have now enabled the gridpp VO. A
> >> number
> >> > > have still not responded to the request made several times
> >> > over the last
> >> > > 4-6 months. If your site does not have the VO enabled
> >> > please could you
> >> > > let me know if you (do not) intend to enable it?
> >> > >
> >> > > For those sites that have enabled it, please could I ask
> >> > you to check
> >> > > the available queues? I have been asked if we can provide a
> >> > 72hr queue
> >> > > for use by some jobs submitted under the VO and the current
> >> > situation
> >> > > shows that this is only available at half the supporting sites:
> >> > >
> >> > >
> >> > >                       GridPP VO  72 hours queue
> >> > > ScotGrid
> >> > > UKI-SCOTGRID-DURHAM     Yes        Yes
> >> > > UKI-SCOTGRID-ECDF       Yes         No
> >> > > UKI-SCOTGRID-GLASGOW    Yes        Yes
> >> > >
> >> > > NorthGrid
> >> > > UKI-NORTHGRID-LANCS-HEP Yes         No
> >> > > UKI-NORTHGRID-LIV-HEP   Yes        Yes
> >> > > UKI-NORTHGRID-MAN-HEP   Yes        Yes
> >> > > UKI-NORTHGRID-SHEF-HEP  Yes        Yes
> >> > >
> >> > > SouthGrid
> >> > > EDFA-JET                Yes        No
> >> > > UKI-SOUTHGRID-BHAM-HEP  Yes        Yes
> >> > > UKI-SOUTHGRID-BRIS-HEP  Yes        Yes
> >> > > UKI-SOUTHGRID-CAM-HEP   No         No
> >> > > UKI-SOUTHGRID-OX-HEP    Yes        Yes
> >> > > UKI-SOUTHGRID-RALPPD    Yes        Yes
> >> > >
> >> > > LondonGrid
> >> > > UKI-LT2-Brunel          Yes        No
> >> > > UKI-LT2-IC-HEP          No         No
> >> > > UKI-LT2-IC-LeSC         Yes        Yes
> >> > > UKI-LT2-QMUL            No         No
> >> > > UKI-LT2-RHUL            Yes        No
> >> > > UKI-LT2-UCL-CENTRAL     No         No
> >> > > UKI-LT2-UCL-HEP         No         No
> >> > >
> >> > >
> >> > > Many thanks for your help,
> >> > > Jeremy
> >> > >
> >> >
> >> > --
> >> > Alessandra Forti - NorthGrid Technical Coordinator
> >> > http://www.hep.manchester.ac.uk/computing/tier2
> >> >
> >> > Well you'll still need a tray
> >> >
> >> --
> >> Scanned by iCritical for STFC.
> >
> 
> 
> 
> --
> Dr Graeme Stewart              http://www.physics.gla.ac.uk/~graeme/
> Department of Physics and Astronomy, University of Glasgow, Scotland

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