[GE issues] node fill-up issue

gascan211 gascan211 at gmail.com
Tue Dec 29 20:11:28 GMT 2009


Daniel,

I notice the same behavior even with np_load_avg for load_formula.

Regards,
Kumar

> Hi Kumar,
> 
> does this also happen when you change the load_formula 
> to np_load_avg (which is the only value compensated by 
> job_load_adjustments)? 
> 
> Daniel
> 
> Am Montag, den 28.12.2009, 13:50 -0800 schrieb gascan211:
> > Hi,
> > 
> > I want the default behavior of sge scheduler to use the least used nodes first and then fill up the available slots on a node. 
> > 
> > queue_sort_method is set to load and np_load_avg=0.50 (normal usage)
> > 
> > But nodes are being filled up instead of jobs being scheduled on the least used nodes. It happens only when jobs are submitted in batches. If jobs are submitted at various intervals, they are being dispatched to different nodes. I.e. submit a job, wait until it is running, submit the next job, and so on.
> > 
> > We haven't seen this issue in SGE6.0u9. Is this a bug in 6.2u1
> > 
> > Thanks,
> > Kumar
> > 
> > Scheduler configuration:
> > 
> > algorithm                         default
> > schedule_interval                 0:0:5
> > maxujobs                          0
> > queue_sort_method                 load
> > job_load_adjustments              np_load_avg=0.5
> > load_adjustment_decay_time        0:7:30
> > load_formula                      slots
> > schedd_job_info                   false
> > flush_submit_sec                  0
> > flush_finish_sec                  0
> > params                            none
> > reprioritize_interval             0:0:0
> > halftime                          168
> > usage_weight_list                 cpu=1.000000,mem=0.000000,io=0.000000
> > compensation_factor               5.000000
> > weight_user                       0.250000
> > weight_project                    0.250000
> > weight_department                 0.250000
> > weight_job                        0.250000
> > weight_tickets_functional         0
> > weight_tickets_share              0
> > share_override_tickets            TRUE
> > share_functional_shares           TRUE
> > max_functional_jobs_to_schedule   200
> > report_pjob_tickets               TRUE
> > max_pending_tasks_per_job         50
> > halflife_decay_list               none
> > policy_hierarchy                  OFS
> > weight_ticket                     0.500000
> > weight_waiting_time               0.278000
> > weight_deadline                   3600000.000000
> > weight_urgency                    0.500000
> > weight_priority                   0.000000
> > max_reservation                   0
> > default_duration                  INFINITY
> > 
> > ------------------------------------------------------
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> > 
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