Re: [Condor-users] My problems

[Yenke Blaise <byenke@xxxxxxxxx>]

Thanks Erik for your suggestion!
I'll try to apply.
Thanks once more.

--- Erik Paulson <epaulson@xxxxxxxxxxx> wrote:

> On Tue, Feb 15, 2005 at 02:59:17AM -0800, Yenke
> Blaise wrote:
> > I'm using Condor and I'm facing somme difficulties
> > that could be resumed as follow :
> > 1) After how many seconds is a checkpoint
> initiated
> > while running an application in Condor?
> 
> It's configurable, and defined by
> PERIODIC_CHECKPOINT expression.
> Note that it's set on the EXECUTE machine, not the
> submit machine,
> so some machines can be set to create a periodic
> checkpoint of 
> the jobs running on it more or less frequently than
> others.
> 
> > 2) Did Condor give the possibility to a user to
> > checkpoint his running program at certain moment?
> In
> > other words what can a user do to checkpoint is
> > running program?
> 
> Send yourself a SIGUSR2, or call ckpt(). See
>
http://www.cs.wisc.edu/condor/manual/v6.6/4_2Condor_s_Checkpoint.html
> 
> > 3) I'd to know what kind of informations ar kept
> in
> > the .ckpt file?
> > 
> 
> The memory image of the process, signal state, and a
> list of open file
> descriptors and the state of those descriptors. See
> the Dr Dobbs
> article from 97, or the Litzkow/Solomon paper:
> 
>
http://www.cs.wisc.edu/condor/publications.html#checkpoint
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> 



		
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