[GE users] Qmake and ssh accounting

Rayson Ho rayrayson at gmail.com
Wed Jun 6 22:40:56 BST 2007


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You can try the "Tight SGE-SSH integration", which is new in SGE 6.1:

http://gridengine.sunsource.net/servlets/BrowseList?list=dev&by=thread&from=4889

Rayson



On 6/6/07, Heywood, Todd <heywood at cshl.edu> wrote:
> We have configured qrsh to use ssh instead of rsh because we ran into the
> port number limitation when running large parallel jobs using qmake. I
> understand this means that any qrsh call will only account for wallclock
> time. Anyway, the qmake man page says:
>
> > qmake  has  two  different modes for allocating Grid Engine resources for the
> > parallel execution of tasks:
> >
> > 1. Allocation of resources using a parallel environment. If the -pe option is
> > used  on  the qmake command line, a parallel job is scheduled by Grid Engine.
> > The make rules are executed as tasks within this parallel job.
> >
> > 2. Dynamic allocation of resources. If no parallel environment is requested
> > when  submitting a qmake job, each make rule will generate an individual Grid
> > Engine qrsh job.  All resource requests given to qmake will be  inherited by
> > the jobs processing the make rules.
>
> Two questions. First, does (1), using -pe make, use qrsh underneath? Does
> qacct thus account for the wallclock time of the whole parallel job (and not
> a sum of the times of the tasks making up the parallel job)?
>
> Second, does (2) in effect result in qacct giving the total sum (wallclock)
> time of all the individual tasks (qrsh jobs)?
>
> Thanks,
>
> Todd
>
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