cpu man page on Inferno

Man page or keyword search:  
man Server   579 pages
apropos Keyword Search (all sections)
Output format
Inferno logo
[printable version]

CPU(4)									CPU(4)

NAME
       cpu - cpu server resource

SYNOPSIS
       grid/srv/cpu
       grid/runcpu

DESCRIPTION
       Cpu is a file server that provides a processing resource. This resource
       imports a namespace from one or	more  external	sources	 and  executes
       selected	 commands within it.  Cpu creates its own namespace containing
       three files ctl, cmd and ns which are used to configure the  processing
       task  prior  to	execution,  this  namespace  is exported and served on
       stdin.  In order to configure a processing task, a  client  must	 first
       mount  the  cpu	namespace.  Once  this is done, reading the cmd and ns
       files will display the current configuration of commands to be executed
       or  directories	to  be	imported respectively. The ctl file is used to
       modify the current configuration and accepts the following input:

	      add cmd command

	      add ns path address

	      del [cmd|ns] index

       Where command is the name (including full path  and  parameters)	 of  a
       command to be executed.	Path is the name of a directory to import from
       the exported namespace available at address and index is the index  (as
       shown when reading the cmd and ns files) of the command or directory to
       be removed from the configuration.

       For example, to import /dis and /dev from a resource exporting  a  Styx
       (see intro(5)) namespace at address tcp!200.1.5.53!7003 and then run ls
       -l and du, the following commands would be used:

	      echo 'add cmd /dis/ls -l' > ctl
	      echo 'add cmd /dis/du' > ctl
	      echo 'add ns /dis tcp!200.1.5.53!7003' > ctl
	      echo 'add ns /dev tcp!200.1.5.53!7003' > ctl

       Reading the cmd and ns files will give the following output:

	      cmd
	      1: /dis/ls -l
	      2: /dis/du

	      ns
	      1: /dis (200.1.5.53!7003)
	      2: /dis (200.1.5.53!7003)

       Once the client disconnects  from  (unmounts)  the  cpu,	 the  selected
       namespaces will be imported and the commands executed. Note: A cpu does
       not have any namespace of its own.  All	required  namespaces  must  be
       imported,  for  a  simple  command  such as ls, the minimum recommended
       namespace to import would be: /chan /dev /dis /module

       Register(1) may be used in conjunction with cpu to register it  with  a
       registry(4)  and	 to export and serve its namespace across dial(2) net‐
       work connections. Incoming connections may also be  displayed  visually
       using monitor(1).  For example:

       grid/register  [	 options  ...  ] { grid/srv/cpu } | grid/srv/monitor 2
       'CPU resource'

       This set of commands is encapsulated within  the	 shell	script	runcpu
       which  will  automatically  register cpu with a registry(4) if possible
       and start up the graphical display to show connections to the resource.
       There  is  no need for the user to execute cpu outside of runcpu unless
       the namespace it provides is required to be accessible in  a  different
       way to that provided by register(1).

SOURCE
       /appl/grid/srv/cpu.b

BUGS
       At  the	moment,	 Cpu will only import namespaces across an unauthenti‐
       cated connection as provided by ns(1).

SEE ALSO
       monitor(1), ns(1), register(1), session(1)

									CPU(4)
[top]

List of man pages available for Inferno

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net