[slurm-users] sreport time units explanation

[Kamil Wilczek]

Yes, it is possible, we have 63 GPUs. But I have a problem with
the interpretation of this value. Specifically, I would like
to know how it is calculated. I couldn't find it in the docs
(or I'm just bad at searching :)).

-- 

W dniu 22.06.2022 o 10:19, Loris Bennett pisze:
> Dear Kamil,
> 
> Kamil Wilczek <kmwil at mimuw.edu.pl> writes:
> 
>> Dear Slurm Users,
>>
>> I'm hope this would be an easy answer. I cannot find an explanation
>> of what exactly "Hours" or other units of time mean in the context
>> of sreport output. For example, when listing most active users
>> in the current month (I'll be trying to even the usage, because
>> I have several very active users who get most of the resources):
>>
>>    sreport --tres=gres/gpu -t hourper user top start=2022-06-01 end=now
>>      topcount=20 format=login%15,proper%20,tresname%15,used%15
>>
>> ----------------------------------------------------------------------
>> Top 20 Users 2022-06-01T00:00:00 - 2022-06-22T08:59:59 (1846800 secs)
>> Usage reported in TRES Hours/Percentage of Total
>> ----------------------------------------------------------------------
>>            Login          Proper Name       TRES Name              Used
>> --------------- -------------------- --------------- -----------------
>>         redacted         redacted           gres/gpu       7470(23.11%)
>>
>> The number "7470" is obviously not a number of raw hours used by a user.
> 
> Why not?  How may GPU cards do you have?  We have 24 and our top user
> for the same time period is 4382(27.41%).  This seems reasonable to me.
> 
> As there are 513 hours in the period, your user would have had to have
> used around 15 cards fairly continuously.  Is that not possible?
> 
> Cheers,
> 
> Loris
> 
>> How should this value be interpreted?
>>
>> Kind Regards

-- 
Kamil Wilczek  [https://keys.openpgp.org/]
[D415917E84B8DA5A60E853B6E676ED061316B69B]
Laboratorium Komputerowe
Wydział Matematyki, Informatyki i Mechaniki
Uniwersytet Warszawski

ul. Banacha 2
02-097 Warszawa

Tel.: 22 55 44 392
https://www.mimuw.edu.pl/
https://www.uw.edu.pl/
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