[Mauiusers] cannot locate feasible nodes

Mahmood Naderan nt_mahmood at yahoo.com
Thu Jun 14 05:53:16 MDT 2012


Dear all,
I faced the problem before (6 month ago), however I don't remember the solution. There are also discussions about this error however I didn't find a clear solution. Here is the problem: When I run qsub command I get this error:

qsub: Job exceeds queue resource limits MSG=cannot locate feasible nodes

Assumptions:
1)

mahmood at srv:~$ pbsnodes -l all
srv                    free
ws01                 free
ws02                 free
ws03                 free
ws04                 free
ws05                 free


2)

mahmood at srv:~$ showq
ACTIVE JOBS--------------------
JOBNAME            USERNAME      STATE  PROC   REMAINING            STARTTIME

     0 Active Jobs       0 of  166 Processors Active (0.00%)
                         0 of    6 Nodes Active      (0.00%)


3) 
mahmood at srv:~$ cat /etc/hosts
127.0.0.1       localhost.localdomain localhost
192.168.1.100 hpclab.srv srv
192.168.1.1 hpclab.ws01 ws01
192.168.1.2 hpclab.ws02 ws02
192.168.1.3 hpclab.ws03 ws03
192.168.1.4 hpclab.ws04 ws04
192.168.1.5 hpclab.ws05 ws05


4) passwordless ssh works fine:
mahmood at srv:~$ ssh ws01
Last login: Thu Jun 14 19:29:50 2012 from hpclab.srv
mahmood at ws01:~$


5)
root at srv:~# cat /var/spool/pbs/server_priv/nodes
srv np=14
ws01 np=24
ws02 np=32
ws03 np=32
ws04 np=32
ws05 np=32


6)
root at srv:~# cat /var/spool/pbs/server_name
hpclab.srv

7)
root at srv:~# qmgr
Max open servers: 4
Qmgr: print server
#
# Create queues and set their attributes.
#
#
# Create and define queue srvq
#
create queue srvq
set queue srvq queue_type = Execution
set queue srvq Priority = 10
set queue srvq resources_default.nodes = 1
set queue srvq resources_default.walltime = 960:00:00
set queue srvq enabled = True
set queue srvq started = True
#
# Create and define queue medium
#
create queue medium
set queue medium queue_type = Execution
set queue medium Priority = 80
set queue medium resources_default.nodes = 1
set queue medium resources_default.walltime = 05:00:00
set queue medium enabled = True
set queue medium started = True
#
# Create and define queue small
#
create queue small
set queue small queue_type = Execution
set queue small Priority = 100
set queue small resources_default.nodes = 1
set queue small resources_default.walltime = 02:00:00
set queue small enabled = True
set queue small started = True
#
# Create and define queue very_small
#
create queue very_small
set queue very_small queue_type = Execution
set queue very_small Priority = 120
set queue very_small resources_default.nodes = 1
set queue very_small resources_default.walltime = 01:00:00
set queue very_small enabled = True
set queue very_small started = True
#
# Create and define queue big
#
create queue big
set queue big queue_type = Execution
set queue big Priority = 60
set queue big resources_default.nodes = 1
set queue big resources_default.walltime = 10:00:00
set queue big enabled = True
set queue big started = True
#
# Set server attributes.
#
set server scheduling = True
set server acl_hosts = hpclab.srv
set server acl_hosts += srv
set server default_queue = very_big
set server log_events = 511
set server mail_from = adm
set server resources_available.nodect = 166
set server scheduler_iteration = 600
set server node_check_rate = 150
set server tcp_timeout = 6
set server next_job_number = 59522
set server server_name = hpclab.srv



I will be very thankful for any hint/help.
Regards,

// Naderan *Mahmood;


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