xenial (7) pbs_resources_irix6array.7B.gz
NAME
pbs_resources_irix - pbs resources on SGI Irix
DESCRIPTION
This page summarizes the resources supported by PBS for SGI workstations running IRIX 6. These resources
are specified 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.
ncpus The number of processors requested. Units: unitary.
cpupercent
The maximum percentage of a cpu which the job used. A value of 100 means 1 cpu. This cannot
be set, it is only reported. Units: percent.
nice The nice value under which the job is to be run. Units: unitary.
nodemask A bit mask specifying the nodes (a pair of processors) to be associated with this job. This
resource is intended for use by PBS to optimize processor allocation and direct use of this
field by the job owner is discouraged. Units: bit mask.
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.
vmem Maximum amount of virtual memory used by all concurrent processes 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_aix4(7B), pbs_resources_sp2(7B), pbs_resources_sunos4(7B), pbs_resources_unicos8(7B)