1pbs_resources_unicosmk2(7B) PBS pbs_resources_unicosmk2(7B)
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6 pbs_resources_unicosmk2 - pbs resources under Unicos MK2
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9 This page summarizes the resources and special features supported by
10 PBS for Cray Research computers running Unicos MK version 2. These re‐
11 sources are specified by including them in the -l option argument on
12 the qsub or qalter command or in the PBS job script.
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15 cput Maximum amount of CPU time used by all processes in the job.
16 Root processes are not limited, see limit(2). Units: time.
17 mem Maximum amount of physical memory used by all concurrent pro‐
19 cesses in the job. Units: size.
20 mppe The number of processing elements used by a single process in
22 the job. Units: unitary.
23 mppt Maximum amount of wall clock time used on the MPP in the job.
25 Units: time.
26 mta, mtb, mtc, ..., mth
28 Maximum number of magnetic tape drives required in the corre‐
29 sponding device class of a, b, c, ..., h. Units: unitary.
30 nice The nice value under which the job is to be run. Units: uni‐
32 tary.
33 pncpus Maximum number of processors used by any single process in the
35 job. Units: unitary.
36 pcput Maximum amount of CPU time used by any single process in the
38 job. Units: time.
39 pf Maximum number of file system blocks that can be used by all
41 process in the job. Units: size.
42 pmem Maximum amount of physical memory used by any single process in
44 the job. Units: size.
45 pmppt Maximum amount of wall clock time used on the MPP by a single
47 process in the job. Units: time.
48 ppf Maximum number of file system blocks that can be used by a sin‐
50 gle process in the job. Units: size.
51 procs Maximum number of processes in the job. Units: unitary.
53 psds Maximum number of data blocks on the SDS (secondary data stor‐
55 age) for any process in the job.
56 sds Maximum number of data blocks on the SDS (secondary data stor‐
58 age) for the job.
59 srfs_tmp
61 Session Reservable File System (SRFS) space in TMPDIR. Note,
62 SRFS is not supported by Cray. Units: size.
63 srfs_wrk
65 SRFS space in WRKDIR. Units: size.
66 srfs_big
68 SRFS space in BIGDIR. Units: size.
69 srfs_fast
71 SRFS space in FASTDIR. Units: size.
72 walltime
74 Maximum amount of real time during which the job can be in the
75 running state. Units: time.
76 arch Specifies the administrator defined system architecture re‐
78 quried. This defaults to whatever the PBS_MACH string is set to
79 in "local.mk". Units: string.
80 host Name of host on which job should be run. This resource is pro‐
82 vided for use by the site's scheduling policy. The allowable
83 values and effect on job placement is site dependent. Units:
84 string.
85 nodes Number and/or type of nodes to be reserved for exclusive use by
87 the job. The value is one or more node_specs joined with the
88 '+' character, "node_spec[+node_spec...]. Each node_spec is an
89 number of nodes required of the type declared in the node_spec
90 and a name or one or more property or properties desired for the
91 nodes. The number, the name, and each property in the node_spec
92 are separated by a colon ':'. If no number is specified, one
93 (1) is assumed. Units: string.
94 The name of a node is its hostname. The properties of nodes
96 are:
97 . ppn=# specifying the number of processors per node requested.
99 Defaults to 1.
100 . arbitrary string assigned by the system administrator, please
102 check with your administrator as to the node names and proper‐
103 ties available to you.
104 Examples:
106 . To ask for 12 nodes of any type: -l nodes=12
108 . To ask for 2 "server" nodes and 14 other nodes (a total of
110 16): -l nodes=2:server+14
111 The above consist of two node_specs "2:server" and "14".
112 . To ask for (a) 1 node that is a "server" and has a "hippi" in‐
114 terface, (b) 10 nodes that are not servers, and (c) 3 nodes
115 that have a large amount of memory an have hippi:
116 -l nodes=server:hippi+10:noserver+3:bigmem:hippi
117 . To ask for three nodes by name:
119 -l nodes=b2005+b1803+b1813
120 . To ask for 2 processors on each of four nodes:
122 -l nodes=4:ppn=2
123 . To ask for 4 processors on one node:
125 -l nodes=1:ppn=4
126 . To ask for 2 processors on each of two blue nodes and three
128 processors on one red node:
129 -l nodes=2:blue:ppn=2+red:ppn=3
130 host Allows a user to specify the desired execution location. This
132 resource is provided for use by the site's scheduling policy.
133 The allowable values and effect on job placement is site depen‐
134 dent. Units: string.
135 other Allows a user to specify site specific information. This re‐
137 source is provided for use by the site's scheduling policy. The
138 allowable values and effect on job placement is site dependent.
139 Units: string.
140 software
142 Allows a user to specify software required by the job. This is
143 useful if certain software packages are only available on cer‐
144 tain systems in the site. This resource is provided for use by
145 the site's scheduling policy. The allowable values and effect
146 on job placement is site dependent. Units: string.
147
149 qsub -l nodes=15,walltime=2:00:00 script
150 or in a qsub script as a directive:
152 #PBS -l nodes=15,walltime=2:00:00
154 qsub -l cput=1:00:00,pcput=20:00,file=50gb,mem=15mb,mta=2 script
157 qalter -lcput=30:00,pmem=8mb 123.jobid
158 qsub -lsrfs_tmp=50mb,srfs_big=2gw script
159 or in a qsub script as directives:
161 #PBS -l cput=1:00:00,pcput=20:00,file=50gb,mem=15mb,mta=2
163 #PBS -lsrfs_tmp=50mb,srfs_big=2gw
164
166 Cray Unicos MK supports checkpoint and restart. Any description of
167 checkpoint features in PBS are applicable to Unicos MK.
168
170 The resource values take the following units:
171 time specifies a maximum time period the resource can be used. Time
173 is expressed in seconds as an integer, or in the form:
174 [[hours:]minutes:]seconds[.milliseconds]
175 size specifies the maximum amount in terms of bytes or words. It is
177 expressed in the form integer[suffix] The suffix is a multi‐
178 plier defined in the following table, The size of a word is the
179 word size on the execution host.
180 b or w bytes or words.
182 kb or kw Kilo (1024) bytes or words.
184 mb or mw Mega (1,048,576) bytes or words.
186 gb or gw Giga (1,073,741,824) bytes or words.
188 unitary The maximum amount of a resource which is expressed as a simple
190 integer.
191
193 the PBS ERS, qsub(1B), qalter(1B), pbs_submit(3B), pbs_alterjob(3B),
194 pbs_statjob(3b) pbs_resources_aix4(7B), pbs_resources_irix5(7B) pbs_re‐
195 sources_sp2(7B), pbs_resources_sunos4(7B)
196Local pbs_resources_unicosmk2(7B)