Basic HTML version of Foils prepared June 23 99

Foil 8 Remarks on JiniMPI I

From Two Projects of Interest for Portals and Java JavaOne San Francisco June 15-18 99 -- June 15-18 99. by Geoffrey C. Fox


1 This architecture is more general than that needed to support MPI like parallel computing
  • It includes ideas present in systems like Condor and Javelin
2 The diagram only shows server (bottom) and service (top) layers. There is of course a client layer which communicates directly with "Parallel Computing (PC) Control and Services module"
3 We assume that each workstation has a "Jini client" called here a "Jini Parallel Computing (PC) Embryo" which registers the availability of that workstation to run either particular or generic applications
  • We do not use term Jini client as this is confusing with client machines of users
  • The Jini embryo can represent the machine (I.e. ability to run general applications) or particular software
4 The Gateway or "Parallel Computing (PC) Control and Services module" queries Jini lookup server to find appropriate service computers to run a particular MPI job
  • It could of course use this mechanism "just" to be able to run a single job or to set up a farm of independent workers

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