Re: [Condor-users] Per-slot rank expressions?

[Ross Oldenburg <rosso@xxxxxxxxxxxxxxxxxxxx>]

I considered using SLOT<N>_STARTD_ATTRS = (RANK = 1000), for example.
But AFAIK, startd_attrs is only for custom classads.

Ross Oldenburg wrote:
> Hi,
> 
> I have machines that use Hyperthreading.  I'd like to enable one slot
> per thread.  However, I would like half of them to have a higher rank
> than the rest to avoid putting work other than 'nice' jobs onto the
> hyperthreads unless my pool is otherwise full.
> 
> Examples of what I've tried:
> 
> example1 {
> 
> SLOT_TYPE_1 = cpu=1, mem=4096
> NUM_SLOTS_TYPE_1 = 8
> SLOT_TYPE_1_RANK = 10000
> 
> SLOT_TYPE_2 = cpu=1, mem=1024
> NUM_SLOTS_TYPE_2 = 8
> SLOT_TYPE_2_RANK = 0
> 
> }
> 
> example2 {
> 
> SLOT_TYPE_1 = cpu=1, mem=4096
> NUM_SLOTS_TYPE_1 = 8
> 
> SLOT_TYPE_2 = cpu=1, mem=1024
> NUM_SLOTS_TYPE_2 = 8
> 
> SLOT1_RANK = 10000
> ...
> SLOT8_RANK = 10000
> SLOT9_RANK = 0
> ...
> SLOT16_RANK = 0
> 
> }
> 
> Neither of these worked.  When I view the machine ads, every slot
> reports that its rank is 0.
> 
> I did find a solution that did work, but I consider it a very bad hack...
> 
> I run two condor_masters and two condor_startds, each with NUM_CPUS set
> to |threads|/2 and with the appropriate RANK value.  One of the
> master/startd sets has <SUBSYS>_NAME set to something unique.
> 
> I would like to avoid this if it's possible and only run one master and
> startd, but I can't find any hints on the condor wiki or in the manual
> that indicate how this can be accomplished.  Any advice would be greatly
> appreciated.
> 
> Thanks much,
> Ross Oldenburg
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