You need to configure a fixed allocation rule of 8 in your
parallel environment and request that PE than on command line.
It is common to have multiple parallel environments for
the same job type with different allocation rules.

qconf -mp yourpe_08
    ...
    allocation_rule    8

With a wildcard PE request (-pe yourpe*) the scheduler is going to 
choose one PE where the PE can run. In Univa Grid Engine
you can influence the PE selection order by a scheduler parameter
(PE_SORT_ORDER).

see "man sge_pe" -> allocation_rule

Daniel

On Mon, 2013-02-18 at 04:46 +0000, Britto, Rajesh wrote:
> Hello all,
> 
>  
> 
> Is it possible to request nodes for a distributed job on SGE 6.1u2?. I
> mean I want to submit the job in say 16 slots where I have to
>  choose 2 nodes in the –l option, is that possible?
> 
>  
> 
> Thanks,
> 
> Britto.
> 
>  
> 
> 
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