.\"         OpenPBS (Portable Batch System) v2.3 Software License
.\" 
.\" Copyright (c) 1999-2000 Veridian Information Solutions, Inc.
.\" All rights reserved.
.\" 
.\" ---------------------------------------------------------------------------
.\" For a license to use or redistribute the OpenPBS software under conditions
.\" other than those described below, or to purchase support for this software,
.\" please contact Veridian Systems, PBS Products Department ("Licensor") at:
.\" 
.\"    www.OpenPBS.org  +1 650 967-4675                  sales@OpenPBS.org
.\"                        877 902-4PBS (US toll-free)
.\" ---------------------------------------------------------------------------
.\" 
.\" This license covers use of the OpenPBS v2.3 software (the "Software") at
.\" your site or location, and, for certain users, redistribution of the
.\" Software to other sites and locations.  Use and redistribution of
.\" OpenPBS v2.3 in source and binary forms, with or without modification,
.\" are permitted provided that all of the following conditions are met.
.\" After December 31, 2001, only conditions 3-6 must be met:
.\" 
.\" 1. Commercial and/or non-commercial use of the Software is permitted
.\"    provided a current software registration is on file at www.OpenPBS.org.
.\"    If use of this software contributes to a publication, product, or service
.\"    proper attribution must be given; see www.OpenPBS.org/credit.html
.\" 
.\" 2. Redistribution in any form is only permitted for non-commercial,
.\"    non-profit purposes.  There can be no charge for the Software or any
.\"    software incorporating the Software.  Further, there can be no
.\"    expectation of revenue generated as a consequence of redistributing
.\"    the Software.
.\" 
.\" 3. Any Redistribution of source code must retain the above copyright notice
.\"    and the acknowledgment contained in paragraph 6, this list of conditions
.\"    and the disclaimer contained in paragraph 7.
.\" 
.\" 4. Any Redistribution in binary form must reproduce the above copyright
.\"    notice and the acknowledgment contained in paragraph 6, this list of
.\"    conditions and the disclaimer contained in paragraph 7 in the
.\"    documentation and/or other materials provided with the distribution.
.\" 
.\" 5. Redistributions in any form must be accompanied by information on how to
.\"    obtain complete source code for the OpenPBS software and any
.\"    modifications and/or additions to the OpenPBS software.  The source code
.\"    must either be included in the distribution or be available for no more
.\"    than the cost of distribution plus a nominal fee, and all modifications
.\"    and additions to the Software must be freely redistributable by any party
.\"    (including Licensor) without restriction.
.\" 
.\" 6. All advertising materials mentioning features or use of the Software must
.\"    display the following acknowledgment:
.\" 
.\"     "This product includes software developed by NASA Ames Research Center,
.\"     Lawrence Livermore National Laboratory, and Veridian Information
.\"     Solutions, Inc.
.\"     Visit www.OpenPBS.org for OpenPBS software support,
.\"     products, and information."
.\" 
.\" 7. DISCLAIMER OF WARRANTY
.\" 
.\" THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. ANY EXPRESS
.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT
.\" ARE EXPRESSLY DISCLAIMED.
.\" 
.\" IN NO EVENT SHALL VERIDIAN CORPORATION, ITS AFFILIATED COMPANIES, OR THE
.\" U.S. GOVERNMENT OR ANY OF ITS AGENCIES BE LIABLE FOR ANY DIRECT OR INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
.\" OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
.\" LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
.\" NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\" 
.\" This license will be governed by the laws of the Commonwealth of Virginia,
.\" without reference to its choice of law rules.
.if \n(Pb .ig Iq
.TH pbs 1B "" Local PBS
.\"         OpenPBS (Portable Batch System) v2.3 Software License
.\" 
.\" Copyright (c) 1999-2000 Veridian Information Solutions, Inc.
.\" All rights reserved.
.\" 
.\" ---------------------------------------------------------------------------
.\" For a license to use or redistribute the OpenPBS software under conditions
.\" other than those described below, or to purchase support for this software,
.\" please contact Veridian Systems, PBS Products Department ("Licensor") at:
.\" 
.\"    www.OpenPBS.org  +1 650 967-4675                  sales@OpenPBS.org
.\"                        877 902-4PBS (US toll-free)
.\" ---------------------------------------------------------------------------
.\" 
.\" This license covers use of the OpenPBS v2.3 software (the "Software") at
.\" your site or location, and, for certain users, redistribution of the
.\" Software to other sites and locations.  Use and redistribution of
.\" OpenPBS v2.3 in source and binary forms, with or without modification,
.\" are permitted provided that all of the following conditions are met.
.\" After December 31, 2001, only conditions 3-6 must be met:
.\" 
.\" 1. Commercial and/or non-commercial use of the Software is permitted
.\"    provided a current software registration is on file at www.OpenPBS.org.
.\"    If use of this software contributes to a publication, product, or service
.\"    proper attribution must be given; see www.OpenPBS.org/credit.html
.\" 
.\" 2. Redistribution in any form is only permitted for non-commercial,
.\"    non-profit purposes.  There can be no charge for the Software or any
.\"    software incorporating the Software.  Further, there can be no
.\"    expectation of revenue generated as a consequence of redistributing
.\"    the Software.
.\" 
.\" 3. Any Redistribution of source code must retain the above copyright notice
.\"    and the acknowledgment contained in paragraph 6, this list of conditions
.\"    and the disclaimer contained in paragraph 7.
.\" 
.\" 4. Any Redistribution in binary form must reproduce the above copyright
.\"    notice and the acknowledgment contained in paragraph 6, this list of
.\"    conditions and the disclaimer contained in paragraph 7 in the
.\"    documentation and/or other materials provided with the distribution.
.\" 
.\" 5. Redistributions in any form must be accompanied by information on how to
.\"    obtain complete source code for the OpenPBS software and any
.\"    modifications and/or additions to the OpenPBS software.  The source code
.\"    must either be included in the distribution or be available for no more
.\"    than the cost of distribution plus a nominal fee, and all modifications
.\"    and additions to the Software must be freely redistributable by any party
.\"    (including Licensor) without restriction.
.\" 
.\" 6. All advertising materials mentioning features or use of the Software must
.\"    display the following acknowledgment:
.\" 
.\"     "This product includes software developed by NASA Ames Research Center,
.\"     Lawrence Livermore National Laboratory, and Veridian Information
.\"     Solutions, Inc.
.\"     Visit www.OpenPBS.org for OpenPBS software support,
.\"     products, and information."
.\" 
.\" 7. DISCLAIMER OF WARRANTY
.\" 
.\" THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. ANY EXPRESS
.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT
.\" ARE EXPRESSLY DISCLAIMED.
.\" 
.\" IN NO EVENT SHALL VERIDIAN CORPORATION, ITS AFFILIATED COMPANIES, OR THE
.\" U.S. GOVERNMENT OR ANY OF ITS AGENCIES BE LIABLE FOR ANY DIRECT OR INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
.\" OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
.\" LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
.\" NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\" 
.\" This license will be governed by the laws of the Commonwealth of Virginia,
.\" without reference to its choice of law rules.
.\" The following macros defination, Sh and Sx, are used to allow
.\" PBS man pages to be formatted with either -man macros or 
.\" be included in the PBS ERS which is formatted with -ms.
.\" 
.\" The presence of the register Pb defined as non zero will trigger
.\" the use of the Sx alternate form.  Otherwise the standard -man
.\" SH is used.
.\"
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.\"
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.br
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.\" end of special PBS man/ERS macros
.\" --
.\" The following macros are style for object names and values.
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.de Al		\" Attribute list item, like .IP but set font and size
.if !\n(Pb .ig Ig
.ft 6
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.Ig
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.de Cs
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.\" define sting Ji as section heading for Job Ids
.ds Ji 2.7.6
.\" define sting Di as section heading for Destination Ids
.ds Di 2.7.3
.\" define sting Si as section heading for Default Server
.ds Si 2.7.4
.Ig
.\" End of macros 
.Iq
.SH NAME
pbs \- general information on pbs
.SH DESCRIPTION
PBS stands for
.I "Portable Batch System."
It is a networked subsystem for submitting, monitoring, and controlling a
work load of batch jobs on one or more systems.
More information about PBS is available in the PBS Users Guide.
.LP
.I Batch
means that the job will be scheduled for execution at a time chosen by
the subsystem according to a defined policy and the availability of 
resources.  For a normal batch job, the standard output and standard error
of the job will be returned to files available to the user when the job is
complete.   This differs from an interactive session where commands are
executed when entered via the terminal and output is returned directly to
the terminal.   PBS also supports an
.I "interactive batch"
mode where the input and output is connected to the user's terminal, but
the scheduling of the job is still under control of the batch system.
.LP
A
.I job
is typically a shell script and a set of attributes which provide resource
and control information about the job.
A job does not have to be submitted on the system where it will run,
tt can be submitted on any system with the PBS commands and access to the
execution system, see 
.I qsub(1B).
Output will be returned to the system from which the job was submitted
unless directed otherwise.
.LP
Attributes offer control over when a job is eligible to be run, what happens
to the output when it is completed and how the user is notified when it
completes.  The attributes of the job may be specified
on the command line or in the job script when the job is submitted.
For information about job attributes, see qsub(1B) and
.I pbs_job_attributes(7B).
.LP
One important attribute is the
.I "resource list."
The list specifies the amount and type of resources needed by the job in 
order to execute.   The list also implies a hard upper limit on usage
of those resources.  When the limit is reached, the job is terminated.
The types of resources available to a job vary with
the system architecture.  For a list of resources supported on the default
system, see
.I pbs_resources(7B).
There are man pages for other systems types as well, see
.I pbs_resources_aix4(7B),
.I pbs_resources_fujitsu(7B),
.I pbs_resources_irix5(7B),
.I pbs_resources_solaris5(7B),
.I pbs_resources_sp2(7B),
.I pbs_resources_sunos4(7B),
or
.I pbs_resources_unicos8(7B).
.LP
Once a job has been submitted, it may be monitored by use of the
.I qstat(1B) 
command.  Two forms of output are available with the qstat command.
The default form is the short display.   Information about a job
is limited to a single line.   Complete information about the job or
jobs is available through qstat with the \-f option.
Information will be given about all jobs in the system, all jobs in specified
queues, or only specified jobs.
.LP
When displaying status of jobs, you will see in which queue the job resides.
In PBS a queue is just a collection point for jobs, it does not imply any
execution ordering.  That ordering is determined by a scheduling policy
implemented by the system administration.
.LP
Other commands of interest which have man pages of their own are:
.IP qalter 8
Alter a job's attributes.
.IP qdel
Delete a job.
.IP qhold
Place a hold on a job to keep it from being scheduled for running.
.IP qmove
Move a job to a different queue or server.
.IP qmsg
Append a message to the output of an executing job.
.IP qrerun
Terminate an executing job and return it to a queue.
.IP qrls
Remove a hold from a job.
.IP qselect
Obtain a list of jobs that met certain criteria.
.IP qsig
Send a signal to an executing job.
.LP
.SH SEE ALSO
qalter(1B), qdel(1B), qhold(1B), qmove(1B), qmsg(1B), qrerun(1B), qrls(1B),
qselect(1B), qsig(1B), qsub(1B) and the PBS User Guide.
Starting with qsub(1B), you can find all other available PBS man pages by
following references in the "See Also" section.
\" turn off any extra indent left by the Sh macro
.RE