unix - vmem と maxvmem

Question

vmem と maxvmem について質問があります。Web で検索したのですが、この 2 つの単語について紛らわしい説明が本当にたくさんあります。私がしたことは、次のように入力することでした：

qstat -j 1154926 | grep vmem

出力は次のとおりです。cpu=00:05:25、mem=23.21121 GB、io=2.70481、vmem=239.277M、maxvmem=351.359M

変数の意味を理解するのを手伝ってくれる人はいますか?

一番

Answer 1

vmem 変数は、そのノード/キューの組み合わせで現在使用可能な仮想メモリを示します。maxvmem は、ノード/キューの組み合わせが使用可能な最大仮想メモリとして提示できるものを示します。

Answer 2

このリンクが役立つことがわかりました。

qstat

qstat can provide more detailed information about a running job by passing it a job id specified by the '-j' argument:

[jamesa@codon sge_test]$ qstat -j 3804867
==============================================================
job_number:                 3804867
exec_file:                  job_scripts/3804867
submission_time:            Wed Jun 29 11:04:02 2011
owner:                      jamesa
uid:                        1001
group:                      bss-staff
gid:                        50001
sge_o_home:                 /home/jamesa
sge_o_log_name:             jamesa
sge_o_path:                 /usr/lib64/openmpi/bin:/usr/lib64/openmpi/1.4-gcc/bin:/opt/sge/6_2u5_1/bin/lx26-amd64:/usr/lib64/qt-3.3/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/lib/jvm/java/bin:/usr/lib/jvm/jre/bin:/usr/biosoft/bin:/usr/biosoft/perl_modules/bioperl/current/bin:/usr/biosoft/packages/emboss/current/bin:/home/jamesa/bin
sge_o_shell:                /bin/bash
sge_o_workdir:              /home/jamesa/sge_test
sge_o_host:                 codon
account:                    sge
cwd:                        /home/jamesa/
sge_testmerge:                      y
hard resource_list:         h_rt=3600,h_vmem=2G
mail_list:                  jamesa@codon.bioinformatics.ic.ac.uk
notify:                     FALSE
job_name:                   blast
jobshare:                   0
env_list:                  
script_file:                blast.sh
usage    1:                 cpu=00:01:37, mem=78.06343 GBs, io=0.00002, vmem=925.562M, maxvmem=1.012G
scheduling info:            There are no messages available

You can see the resources you requested at submission time on the 'hard_resource_list' line of the qstat output. The actual resources used by the job at the time qstat were executed are shown in the 'usage' line.
Email Reporting

A summary of the jobs resource usage can be obtained by requesting an email report following the jobs completion, using the '-m e' qsub directive (see advanced submission options for details). An example email report is show below.

Job 3804869 (blast) Complete
  User             = jamesa
  Queue            = 3day_16@bss-node11.cluster.bioinformatics.ic.ac.uk
  Host             = bss-node11.cluster.bioinformatics.ic.ac.uk
  Start Time       = 06/29/2011 11:26:08
  End Time         = 06/29/2011 11:30:43
  User Time        = 00:03:51
  System Time       = 00:00:12
  Wallclock Time   = 00:04:35
  CPU              = 00:04:04
  Max vmem         = 1.012G
  Exit Status      = 0

The total memory used is indicated by the 'Max vmem' field, while the total runtime is reported as 'Wallclock Time'. Care should be taken when submitting a large number of jobs with email reporting enabled, since you may find yourself recieving several thousand reports in individual emails.