[gridengine users] load scaling

Ueki Hikonuki ueki.hikonuki at gmail.com
Tue Sep 5 09:47:02 UTC 2017


William, thank you for your advice.

I will try both.

Ueki

On 2017/09/04 16:54, William Hay wrote:
> On Fri, Sep 01, 2017 at 06:28:43PM +0900, Ueki Hikonuki wrote:
>> Hi,
>>
>> I tried to understand load scaling. But it is still unclear for me.
>>
>> Let's assume two hosts.
>>
>> hostA very fast machine
>> hostB regular speed machine
>>
>> Even though np_load_avg of hostA is much higher than hostB,
>> a job still runs faster on hostA. But in this case gridengine usually
>> submits the job to hostB because its np_load_avg is lower.
>>
>> I want to tune this environment by changing load scaling.
>> But I don't know how.
>>
> There probably isn't a built in "load sensor" that directly reflects what you want.  You could:
> 1)Write your own load sensor that reflects your notion of which node is more preferable then use that for the load_formula.
> 2)Change the queue_sort_method to seqno and give the queues on hostA a lower sequence number.  You could add a
> np_load_avg based load_threshold that will stop jobs being assigned to a host if it is overloaded.
> 
> William
> 

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