[GE users] The "Olesen Method" flexlm works great!!

Mon Yang myang at psdc.com
Thu Dec 29 17:35:20 GMT 2005


The default qlicserver checks every 40 sec.  You can change that to 1
sec if you like.  It will be nice if Flexlm can inform SGE but I guess
that requires some kind of flexlm API to do that.


Mon 

-----Original Message-----
From: Dev [mailto:dev_hyd2001 at yahoo.com] 
Sent: Wednesday, December 28, 2005 11:47 AM
To: users at gridengine.sunsource.net
Subject: Re: [GE users] The "Olesen Method" flexlm works great!!

Hi,

 Thanks for the info. But as far as my understanding
goes even in the Olesen method we have a bit of a
delay till the qlicserver runs a check on the license
servers? or does qlicserver get notified by FlexLM
when someone checks out a license ?

/Dev



--- Chris Dagdigian <dag at sonsorol.org> wrote:

> 
> Hello,
> 
> The problems with license handling using consumables
> etc. is pretty  
> well covered in the wiki here:
> 
>
http://wiki.gridengine.info/wiki/index.php/Olesen-FLEXlm-
> 
> Integration#Problems_With_The_Load_Sensor_Approach
> 
> The main issues boil down to inaccurate accounting
> and race  
> conditions, primarily for people who have license
> server(s) that are  
> feeding license entitlements to non-cluster
> workstations and users.  
> The standard load sensor approach can run into
> accuracy difficulties  
> when non-cluster entities check out licenses.  The
> Olesen method is  
> great in this situation because it cleanly and
> rapidly will directly  
> adjust the value of the internal SGE consumables to
> reflect the  
> current real world status of available license
> entitlements.
> 
> If you have a license server that is used only by
> your SGE cluster,  
> you don't need the "Olesen" method at all. Simple
> consumable  
> resources will work perfectly.
> 
> -Chris
> 
> 
> 
> 
> On Dec 28, 2005, at 4:18 AM, Dev wrote:
> 
> > Hi,
> >
> >       I've been trying to understand the
> advantages of the  Olesen  
> > Method of FlexLM integration. I am a bit confused
> with the three   
> > types of methods described in the document 
> http:// 
> >
>
wiki.gridengine.info/wiki/index.php/Olesen-FLEXlm-Integration
> >
> >   BTW This could be a very basic stupid question.
> >
> >   What I've been trying to understand is .
> >
> >   Whats the major difference in using the Olesen
> method and using  
> > the  method described in 
> http://gridengine.sunsource.net/project/ 
> > gridengine/howto/consumable.html  where the load
> sensor reports the  
> > value of the same consumable resource  which is
> requested when  
> > doing a qrsh or qsub ?
> >
> >
> >   cheers
> >
> >   /Dev
> >
> >
> >
> >
> > Mon Yang <myang at psdc.com> wrote:  I thought it
> will be complex but  
> > it is actually much easier then the old
> > method.  It only took me 10 min to set it up. 
> Great job!!
> >
> > One question... So I run qlicserver daemon on
> qmaster only, right?  Or
> > do I need to run it on all Grid systems?
> >
> > Once again, this works very well for my
> environment.  Thank you, thank
> > you!  :-D
> >
> >
> > Mon
> >
> > -----Original Message-----
> > From: Chris Dagdigian [mailto:dag at sonsorol.org]
> > Sent: Friday, November 18, 2005 8:04 AM
> > To: users at gridengine.sunsource.net
> > Subject: Re: [GE users] new approach to FLEXlm
> license integration  
> > - The
> > "Olesen Method" - code & draft docs available
> >
> >
> > qlicserver is all Mark's work - I'm just a happy
> end-user.  The offer
> > to stick the tarball on gridengine.info was merely
> a side effect of
> > wanting to see his code and methods distributed to
> the user community
> > in a way that matched his key concerns:  minimize
> support burden &
> > having license terms that would prevent some
> company from knocking in
> > his door in the future trying to sell him his own
> work.
> >
> > I've got no personal, ego, business or any other
> reason to be
> > concerned about what happens with the code and
> since I didn't write
> > it I shouldn't have a say in what happens to it.
> Should something of
> > mine prove of interest (such as extra
> documentation or howto
> > materials), they can already be folded into SGE
> whenever it makes
> > sense -- I've already signed the sunsource
> contributor agreements.
> >
> > The gridengine.info site is a personal effort
> running on my own (non
> > corporate) server.  I'm happy with how it helps my
> own knowledge and
> > how it (occasionally) gets hits from people
> googling for SGE info. As
> > people have mentioned before - the sunsource site
> is difficult for
> > internet search engines to index.  There is no
> need for the site to
> > "broaden its base" or anything like that. I'd be
> just as happy to
> > link to sunsource.net as I would be to host static
> files on
> > gridengine.info.
> >
> > -chris
> >
> >
> >
> > On Nov 18, 2005, at 9:05 AM, Andreas Haas wrote:
> >
> >> Dear Chris,
> >>
> >> even though I haven't had a chance to do a
> detailed review,
> >> I must say I'm really impressed of Mark's (and
> your) work.
> >> I uploaded qlicserver-1.14.1.tar.gz to the
> projects download
> >> area as you proposed and added at first a related
> link from
> >>
> >>   
> http://gridengine.sunsource.net/howto/howto.html
> >>
> >> with regards to thinkable further development of
> qlicserver I
> >> talked with Mark. The open issue was whether it
> would be possible
> >> for qlicserver snapshots to become part of Grid
> Engine distributions
> >> in order to make it easier deployable for anyone
> and Mark said
> >> that is no problem in principle. My thinking is
> this should be
> >> advantageous also for you as a wide spreading of
> it broadens
> >> your base and at the same time make qlicserver
> easier to support.
> >>
> >
> >
>
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