[Mauiusers] Jobs not starting because of insufficient swap

Martin Kleinschmidt mk at theochem.uni-duesseldorf.de
Wed Apr 12 10:13:59 MDT 2006


Hi,

we are having problems with the configuration of our queuing system.
We use OpenPBS with maui.

Jobs are rejected because of insufficient Swap:

output of checkjob -v :
======================================
checking job 215

State: Idle  (User: mk  Group: sfbusr  Account: [NONE])
WallTime: 0:00:00  (Limit: 0:10:00)

QueueTime: Wed Apr 12 17:05:42

Total Tasks: 1

Req[0]  TaskCount: 1  Partition: ALL
Network: [NONE]  Memory >= 0  Disk >= 0  Features: [NONE]
Opsys: [NONE]  Arch: [NONE]  Class: [small 1]
ExecSize: 0  ImageSize: 0
Dedicated Resources Per Task: Procs: 1
TasksPerNode: 1  NodeCount: 0

IWD: [NONE]  Executable:  [NONE]
QOS: DEFAULT  Bypass: 0  StartCount: 0
Partition Mask: [ALL]
Flags:       RESTARTABLE

PE:  1.00  StartPriority:  7121
job cannot run in partition DEFAULT (idle procs do not meet
requirements)
idle procs:  14  feasible procs:   0

Rejection Reasons: [Swap         :    7][State        :    1]

Detailed Rejection Information:

            sfb663-1 rejected : Swap
            sfb663-2 rejected : Swap
            sfb663-3 rejected : Swap
            sfb663-4 rejected : Swap
            sfb663-5 rejected : Swap
            sfb663-6 rejected : Swap
            sfb663-7 rejected : Swap
              master rejected : State

==========================================
(master rejecting is OK, it has no pbs_mom runnning)

output of checknode:
==========================================
checking node sfb663-1

State:         Idle  Opsys:        DEFAULT  Arch:       linux
Configured Resources: Procs: 2  Mem: 2  Swap: 5  Disk: 1
Utilized   Resources: [NONE]
Dedicated  Resources: [NONE]
Speed:      1.00  Load:       0.000
Partition:  DEFAULT
Network:    [DEFAULT]
Features:   [NONE]
Classes:    [verylong 2:2][medium 2:2][default 2:2][small 2:2][long 2:2]

node has been in current state for 0:36:01

Reservations:

Total Time: 35:09:32:56  Up: 33:09:19:01 (94.32%)  Busy: 0:00:00 (0.00%)
===========================================

what I don't understand is:
Why does it report "Mem: 2  Swap: 5  Disk: 1" ?!

it has 4 GB of physical memory, and 4 GB of swap:

output of free:
==========================================
             total       used       free     shared    buffers cached
Mem:       4024520    1186708    2837812          0     160996 892004
-/+ buffers/cache:     133708    3890812
Swap:      4080488          0    4080488
==========================================

so the question is: where does the "5" for swap come from? where does
the "2" of Mem come from?

   ...martin


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