Reuti <[email protected]> wrote:

>> we're using OGS/GE 2011.11 at toolserver.org, and unfortu-
>> nately our admins are AWOL.  I'm trying to investigate why
>> the grid is heavily underloaded (while queues are filling
>> up).  A simple job gets queued and has scheduling_info:

>> | scheduling info:            queue instance 
>> "[email protected]" dropped because it is temporarily not 
>> available
>> |                             queue instance 
>> "[email protected]" dropped because it is temporarily not 
>> available
>> |                             queue instance 
>> "[email protected]" dropped because it is temporarily not 
>> available
>> |                             queue instance 
>> "[email protected]" dropped because it is temporarily not 
>> available
>> |                             queue instance 
>> "[email protected]" dropped because it is disabled
>> |                             queue instance 
>> "[email protected]" dropped because it is disabled
>> |                             queue instance 
>> "[email protected]" dropped because it is overloaded: 
>> np_load_short=0.845508 (= 0.645508 + 0.8 * 1.000000 with nproc=4) >= 0.75
>> |                             queue instance 
>> "[email protected]" dropped because it is overloaded: 
>> np_load_short=0.831445 (= 0.231445 + 0.8 * 6.000000 with nproc=8) >= 0.75
>> |                             queue instance 
>> "[email protected]" dropped because it is overloaded: 
>> np_load_short=1.245508 (= 0.645508 + 0.8 * 3.000000 with nproc=4) >= 1.2
>> |                             queue instance 
>> "[email protected]" dropped because it is overloaded: 
>> np_load_short=1.231445 (= 0.231445 + 0.8 * 10.000000 with nproc=8) >= 1.2
>> |                             queue instance 
>> "[email protected]" dropped because it is overloaded: 
>> np_load_short=1.202500 (= 0.002500 + 0.8 * 6.000000 with nproc=4) >= 1.2
>> |                             queue instance 
>> "[email protected]" dropped because it is full
>> |                             queue instance 
>> "[email protected]" dropped because it is overloaded: 
>> mem_free=-173461503.737856 (= 13834.574219M - 500M * 28.000000) <= 500
>> |                             queue instance 
>> "[email protected]" dropped because it is overloaded: 
>> np_load_short=3.202500 (= 0.002500 + 0.8 * 16.000000 with nproc=4) >= 3.1

>> For example, in queue instance
>> [email protected], where do the factors 0.8
>> and 6.000000 come from?  Neither "qconf -sconf global" nor
>> "qconf -sconf yarrow" show anything obvious, and "qconf -sq
>> medium-lx" only has load_thresholds with:

>> | [...]
>> | load_thresholds       np_load_short=1.2,np_load_long=1.5,cpu=98, \
>> |                       mem_free=1000M, \
>> |                       
>> [mayapple.toolserver.org=np_load_short=2.1,mem_free=300M]
>> | [...]

>> to define the threshold, but not the calculation.  I believe
>> the factors are applied at
>> source/libs/sched/sge_select_queue.c:2057, but I don't want
>> to read the whole source :-).  Are these factors some de-
>> fault, or where should I look?

> What is defined in `qconf -ssconf` for "job_load_adjustments"?

| job_load_adjustments              
tmp_free=150M,np_load_short=0.8,mem_free=500M

Ah!  So there's the 0.8.  Any idea for the 6.000000?

Thanks,
Tim
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