1pbs_resources_aix5(7B) PBS pbs_resources_aix5(7B)
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6 pbs_resources_aix5 - pbs Resources on IBM AIX 5
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9 This page summarizes the resources supported by PBS for IBM systems
10 running AIX version 5. These resources are specified for jobs by in‐
11 cluding them in the -l option argument on the qsub or qalter command or
12 in the PBS job script.
13
15 cput Maximum amount of CPU time used by all processes in the job.
16 Units: time.
17 file The largest size of any single file that may be created by
19 the job. Units: size.
20 mem Maximum amount of physical memory (workingset) used by the
22 job. Units: size.
23 vmem Maximum amount of virtual memory used by all concurrent pro‐
25 cesses in the job. Units: size.
26 nice The nice value under which the job is to be run. Units: uni‐
28 tary.
29 pcput Maximum amount of CPU time used by any single process in the
31 job. Units: time.
32 pmem Maximum amount of physical memory (workingset) used by any
34 single process of the job. Units: size.
35 pvmem Maximum amount of virtual memory used by any single process
37 in the job. Units: size.
38 walltime Maximum amount of real time during which the job can be in
40 the running state. Units: time.
41 arch Specifies the administrator defined system architecture re‐
43 quried. This defaults to whatever the PBS_MACH string is set
44 to in "local.mk". Units: string.
45 host Name of host on which job should be run. This resource is
47 provided for use by the site's scheduling policy. The al‐
48 lowable values and effect on job placement is site dependent.
49 Units: string.
50 nodes Number and/or type of nodes to be reserved for exclusive use
52 by the job. The value is one or more node_specs joined with
53 the '+' character, "node_spec[+node_spec...]. Each node_spec
54 is an number of nodes required of the type declared in the
55 node_spec and a name or one or more property or properties
56 desired for the nodes. The number, the name, and each prop‐
57 erty in the node_spec are separated by a colon ':'. If no
58 number is specified, one (1) is assumed. Units: string.
59 The name of a node is its hostname. The properties of nodes
61 are:
62 . ppn=# specifying the number of processors per node re‐
64 quested. Defaults to 1.
65 . arbitrary string assigned by the system administrator,
67 please check with your administrator as to the node names
68 and properties available to you.
69 Examples:
71 . To ask for 12 nodes of any type: -l nodes=12
73 . To ask for 2 "server" nodes and 14 other nodes (a total of
75 16): -l nodes=2:server+14
76 The above consist of two node_specs "2:server" and "14".
77 . To ask for (a) 1 node that is a "server" and has a "hippi"
79 interface, (b) 10 nodes that are not servers, and (c) 3
80 nodes that have a large amount of memory an have hippi:
81 -l nodes=server:hippi+10:noserver+3:bigmem:hippi
82 . To ask for three nodes by name:
84 -l nodes=b2005+b1803+b1813
85 . To ask for 2 processors on each of four nodes:
87 -l nodes=4:ppn=2
88 . To ask for 4 processors on one node:
90 -l nodes=1:ppn=4
91 . To ask for 2 processors on each of two blue nodes and three
93 processors on one red node:
94 -l nodes=2:blue:ppn=2+red:ppn=3
95 host Allows a user to specify the desired execution location.
97 This resource is provided for use by the site's scheduling
98 policy. The allowable values and effect on job placement is
99 site dependent. Units: string.
100 other Allows a user to specify site specific information. This re‐
102 source is provided for use by the site's scheduling policy.
103 The allowable values and effect on job placement is site de‐
104 pendent. Units: string.
105 software Allows a user to specify software required by the job. This
107 is useful if certain software packages are only available on
108 certain systems in the site. This resource is provided for
109 use by the site's scheduling policy. The allowable values
110 and effect on job placement is site dependent. Units:
111 string.
112
114 qsub -l nodes=15,walltime=2:00:00 script
115 or in a qsub script as a directive:
117 #PBS -l nodes=15,walltime=2:00:00
119 qsub -l cput=1:00:00,walltime=2:00:00,file=50gb,mem=15mb script
122 qalter -lcput=30:00,pmem=8mb 123.jobid
123 or in a qsub script as a directive:
125 #PBS -l cput=1:00:00,walltime=2:00:00,file=50gb,mem=15mb
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129 The resource values take the following units:
130 time specifies a maximum time period the resource can be used. Time
132 is expressed in seconds as an integer, or in the form:
133 [[hours:]minutes:]seconds[.milliseconds]
134 size specifies the maximum amount in terms of bytes or words. It is
136 expressed in the form integer[suffix] The suffix is a multi‐
137 plier defined in the following table, The size of a word is the
138 word size on the execution host.
139 b or w bytes or words.
141 kb or kw Kilo (1024) bytes or words.
143 mb or mw Mega (1,048,576) bytes or words.
145 gb or gw Giga (1,073,741,824) bytes or words.
147 unitary The maximum amount of a resource which is expressed as a simple
149 integer.
150
152 the PBS ERS, qsub(1B), qalter(1B), pbs_submit(3B), pbs_alterjob(3B),
153 pbs_statjob(3b) pbs_resources_irix5(7B), pbs_resources_sp2(7B), pbs_re‐
154 sources_sunos4(7B), pbs_resources_unicos8(7B)
155Local pbs_resources_aix5(7B)