Paw/Piaf: Parallel Interactive Analysis Facility

Summary of commands

• Establish a connection to the piaf service on remote host <hostname> and start service on available slaves.
  paw> connect piaf <hostname>
• Terminate piaf session when finished.
  paw> disconnect
• Upload a source file or shared-object binary (or any file) to piaf area for subsequent execution on slave nodes.
  paw> put <filename>
• Download a file from piaf to local host.
  paw> get <filename>
• Open a hbook file on piaf master and all slaves.
  paw> h/file <lun> //piaf/<filename> <recsize>
• Declare an ntuple chain on piaf.
  paw> nt/chain <chain> <filename>(<recsiz>)
• Make a histogram from columns of an ntuple.
  paw> nt/pl //chain/<id>.<var>
• Make a histogram from an ntuple using a fortran function called myfunc() that is compiled by the native f77 compiler.
  paw> nt/pl //chain/myfunc.f77

Configuration

• /usr/local/piaf/etc/piaf.conf
• ~/.piafrc