Hi,

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?

TIA,
Tim
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