2.5   Configuring a virtual machine

• The user may start pvmd with a hostfile then start pvm if desired
• The first daemon then starts to replicate itself on all the nodes
• The hostfile defines a configuration
• A basic hostfile looks like

  # configuration used for my run 
  ms2
  ms3
  mpp.lifl.fr            
          

• Example:

  mpp.lifl.fr% pvmd mypvmhostfile
  

• Several options can be specified

  lo=userid

   allows the user to specify an alternate login name for this host
  (default: same, i.e. $USER)

  so=pw

  will cause PVM to prompt for the password on this host
  (default: don't ask; use rsh)

  dx=location_of_pvmd

  specifies a location other than the default
  (default: pvm3/lib/pvmd)

  ep=paths_to_user_executables

  allows the user to specify a series of paths to search down to find the requested files to spawn on this host The default value is $HOME/pvm3/bin/%
% = $PVM_ARCH

• Example of configuration file

  # Comment lines start with #      
  ms2.ens.lifl.fr
  mpp.lifl.fr   dx=/usr/local/pvm3/lib/MASPAR/pvmd
  
  # set default option for following host with *
  * ep=~/pvmdir/bin/SUN4
  budweiser.lifl.fr
  lutece.lifl.fr
  
  # replace default options with new values
  * lo=phm  ep=/usr/local/pvm/bin/%
  corona.lifl.f
  adelscott.lifl.fr 
  
  # machine for adding later are specified with &
  # these only need listing if options are required
  & ms1.ens.lifl.fr ep=~/pvm3/bin/SUN4:~/bin
  & watou.lifl.fr dx=/usr/local/pvm3/lib/DEC/pvmd