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NAME

       pbs_resources_aix4 - pbs Resources on IBM AIX 4

DESCRIPTION

       This  page  summarizes  the  resources supported by PBS for IBM systems
       running AIX version 4.  These  resources  are  specified  for  jobs  by
       including  them in the -l option argument on the qsub or qalter command
       or in the PBS job script.

RESOURCES

       cput      Maximum amount of CPU time used by all processes in the  job.
                 Units: time.

       file      The  largest  size  of any single file that may be created by
                 the job.  Units: size.

       mem       Maximum amount of physical memory (workingset)  used  by  the
                 job.  Units: size.

       vmem      Maximum  amount  of  virtual  memory  used  by all concurrent
                 processes in the job.  Units: size.

       nice      The nice value under which the job  is  to  be  run.   Units:
                 unitary.

       pcput     Maximum  amount of CPU time used by any single process in the
                 job.  Units: time.

       pmem      Maximum amount of physical memory (workingset)  used  by  any
                 single process of the job.  Units: size.

       pvmem     Maximum  amount  of virtual memory used by any single process
                 in the job.  Units: size.

       walltime  Maximum amount of real time during which the job  can  be  in
                 the running state.  Units: time.

       arch      Specifies   the  administrator  defined  system  architecture
                 requried.  This defaults to whatever the PBS_MACH  string  is
                 set to in "local.mk".  Units: string.

       host      Name  of  host  on which job should be run.  This resource is
                 provided for use  by  the  site's  scheduling  policy.    The
                 allowable   values  and  effect  on  job  placement  is  site
                 dependent.  Units: string.

       nodes     Number and/or type of nodes to be reserved for exclusive  use
                 by  the job.  The value is one or more node_specs joined with
                 the '+' character, "node_spec[+node_spec...].  Each node_spec
                 is  an  number  of nodes required of the type declared in the
                 node_spec and a name or one or more properity or  properities
                 desired  for  the  nodes.   The  number,  the  name, and each
                 properity in the node_spec are separated by a colon ':'.   If
                 no number is specified, one (1) is assumed.  Units: string.

                 The name of a node is its hostname.  The properities of nodes
                 are:

                 . ppn=#  specifying  the  number  of  processors   per   node
                   requested.  Defaults to 1.

                 . arbitrary  string  assigned  by  the  system administrator,
                   please check with your administrator as to the  node  names
                   and properities available to you.

                 Examples:

                 . To ask for 12 nodes of any type: -l nodes=12

                 . To  ask for 2 "server" nodes and 14 other nodes (a total of
                   16): -l nodes=2:server+14
                   The above consist of two node_specs "2:server" and "14".

                 . To ask for (a) 1 node that is a "server" and has a  "hippi"
                   interface,  (b)  10  nodes  that are not servers, and (c) 3
                   nodes that have a large amount of memory an have hippi:
                   -l nodes=server:hippi+10:noserver+3:bigmem:hippi

                 . To ask for three nodes by name:
                   -l nodes=b2005+b1803+b1813

                 . To ask for 2 processors on each of four nodes:
                   -l nodes=4:ppn=2

                 . To ask for 4 processors on one node:
                   -l nodes=1:ppn=4

                 . To ask for 2 processors on each of two blue nodes and three
                   processors on one red node:
                   -l nodes=2:blue:ppn=2+red:ppn=3

       host      Allows  a  user  to  specify  the desired execution location.
                 This resource is provided for use by  the  site's  scheduling
                 policy.   The allowable values and effect on job placement is
                 site dependent.  Units: string.

       other     Allows a user to specify  site  specific  information.   This
                 resource is provided for use by the site's scheduling policy.
                 The allowable values and effect  on  job  placement  is  site
                 dependent.  Units: string.

       software  Allows a user to specify software required by the job.   This
                 is useful if certain software packages are only available  on
                 certain  systems  in the site.  This resource is provided for
                 use by the site's scheduling policy.   The  allowable  values
                 and  effect  on  job  placement  is  site  dependent.  Units:
                 string.

EXAMPLES

       qsub -l nodes=15,walltime=2:00:00 script

       or in a qsub script as a directive:

       #PBS -l nodes=15,walltime=2:00:00

       qsub -l cput=1:00:00,walltime=2:00:00,file=50gb,mem=15mb script
       qalter -lcput=30:00,pmem=8mb 123.jobid

       or in a qsub script as a directive:

       #PBS -l cput=1:00:00,walltime=2:00:00,file=50gb,mem=15mb

RESOURCE UNITS

       The resource values take the following units:

       time    specifies a maximum time period the resource can be used.  Time
               is expressed in seconds as an integer, or in the form:
               [[hours:]minutes:]seconds[.milliseconds]

       size    specifies the maximum amount in terms of bytes or words.  It is
               expressed  in  the  form  integer[suffix]  The  suffix   is   a
               multiplier  defined  in the following table, The size of a word
               is the word size on the execution host.

                b or  w    bytes or words.

               kb or kw    Kilo (1024) bytes or words.

               mb or mw    Mega (1,048,576) bytes or words.

               gb or gw    Giga (1,073,741,824) bytes or words.

       unitary The maximum amount of a resource which is expressed as a simple
               integer.

SEE ALSO

       the  PBS  ERS,  qsub(1B), qalter(1B), pbs_submit(3B), pbs_alterjob(3B),
       pbs_statjob(3b)     pbs_resources_irix5(7B),     pbs_resources_sp2(7B),
       pbs_resources_sunos4(7B), pbs_resources_unicos8(7B)