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Operating Systems Linux at scheduling executes job immediately Post 302222977 by new2ss on Friday 8th of August 2008 03:59:13 AM
Old 08-08-2008
at scheduling executes job immediately

Hi all,

I am trying to schedule a one time job using at. First I do a `date` command to capture current date

Code:
[myhost]$ date
Fri Aug  8 15:53:20  # shows current date
[myhost]$ at -t 16:00 today #schedule command to run at 4pm
at> command1
at> <EOT> #after pressing Crtl D
job 6 at 2008-08-08 15:53

and the command1 run immediately.

I schedule the job to run at 4pm. But it instead runs at 3.53pm, which was the time i was scheduling it. Does anybody know why?
 

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qrun(8B)                                                                PBS                                                               qrun(8B)

NAME
qrun - run a pbs batch job SYNOPSIS
qrun [-a] [-H host] job_identifier ... DESCRIPTION
The qrun command is used to force a batch server to initiate the execution of a batch job. The job is run regardless of scheduling posi- tion, resource requirements, or state. In order to execute qrun, the user must have PBS Operation or Manager privilege. OPTIONS
-a Specifies the job(s) is to be run asynchronously. -H host Specifies the host within the cluster on which the job(s) are to be run. The host argument is the name of a host that is a member of the cluster of hosts managed by the server. If the option is not specified, the server will select the "worst possible" host on which to execute the job. OPERANDS
The qrun command accepts one or more job_identifier operands of the form: sequence_number[.server_name][@server] STANDARD ERROR
The qrun command will write a diagnostic message to standard error for each error occurrence. EXIT STATUS
Upon successful processing of all the operands presented to the qrun command, the exit status will be a value of zero. If the qrun command fails to process any operand, the command exits with a value greater than zero. SEE ALSO
pbs_server(8B), pbs_sched(8B), qmgr(1B) Local qrun(8B)
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