1pbs_resources_unicosmk2(7B)           PBS          pbs_resources_unicosmk2(7B)
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NAME

6       pbs_resources_unicosmk2 - pbs resources under Unicos MK2
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DESCRIPTION

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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RESOURCES

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.
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18       mem    Maximum  amount  of  physical memory used by all concurrent pro‐
19              cesses in the job.  Units: size.
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21       mppe   The number of processing elements used by a  single  process  in
22              the job.  Units: unitary.
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24       mppt   Maximum  amount  of  wall clock time used on the MPP in the job.
25              Units: time.
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27       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.
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31       nice   The  nice  value  under which the job is to be run.  Units: uni‐
32              tary.
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34       pncpus Maximum number of processors used by any single process  in  the
35              job.  Units: unitary.
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37       pcput  Maximum  amount  of  CPU  time used by any single process in the
38              job.  Units: time.
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40       pf     Maximum number of file system blocks that can  be  used  by  all
41              process in the job.  Units: size.
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43       pmem   Maximum  amount of physical memory used by any single process in
44              the job.  Units: size.
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46       pmppt  Maximum amount of wall clock time used on the MPP  by  a  single
47              process in the job.  Units: time.
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49       ppf    Maximum  number of file system blocks that can be used by a sin‐
50              gle process in the job.  Units: size.
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52       procs  Maximum number of processes in the job.  Units: unitary.
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54       psds   Maximum number of data blocks on the SDS (secondary  data  stor‐
55              age) for any process in the job.
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57       sds    Maximum  number  of data blocks on the SDS (secondary data stor‐
58              age) for the job.
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60       srfs_tmp
61              Session Reservable File System (SRFS) space  in  TMPDIR.   Note,
62              SRFS is not supported by Cray.  Units: size.
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64       srfs_wrk
65              SRFS space in WRKDIR.  Units: size.
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67       srfs_big
68              SRFS space in BIGDIR.  Units: size.
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70       srfs_fast
71              SRFS space in FASTDIR.  Units: size.
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73       walltime
74              Maximum  amount  of real time during which the job can be in the
75              running state.  Units: time.
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77       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.
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81       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.
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86       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.
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95              The name of a node is its hostname.   The  properties  of  nodes
96              are:
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98              . ppn=#  specifying the number of processors per node requested.
99                Defaults to 1.
100
101              . 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.
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105              Examples:
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107              . To ask for 12 nodes of any type: -l nodes=12
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109              . 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".
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113              . 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
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118              . To ask for three nodes by name:
119                -l nodes=b2005+b1803+b1813
120
121              . To ask for 2 processors on each of four nodes:
122                -l nodes=4:ppn=2
123
124              . To ask for 4 processors on one node:
125                -l nodes=1:ppn=4
126
127              . 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
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131       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.
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136       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.
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141       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.
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EXAMPLES

149       qsub -l nodes=15,walltime=2:00:00 script
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151       or in a qsub script as a directive:
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153       #PBS -l nodes=15,walltime=2:00:00
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156       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
160       or in a qsub script as directives:
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162       #PBS -l cput=1:00:00,pcput=20:00,file=50gb,mem=15mb,mta=2
163       #PBS -lsrfs_tmp=50mb,srfs_big=2gw
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SPECIAL FEATURES

166       Cray Unicos MK supports checkpoint and restart.    Any  description  of
167       checkpoint features in PBS are applicable to Unicos MK.
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RESOURCE UNITS

170       The resource values take the following units:
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172       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]
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176       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.
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181                b or  w    bytes or words.
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183               kb or kw    Kilo (1024) bytes or words.
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185               mb or mw    Mega (1,048,576) bytes or words.
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187               gb or gw    Giga (1,073,741,824) bytes or words.
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189       unitary The maximum amount of a resource which is expressed as a simple
190               integer.
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SEE ALSO

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)
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199Local                                              pbs_resources_unicosmk2(7B)
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