Grid Middleware

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Grids have middleware stacks, which are a series of cooperating programs, protocols and agents designed to help users access the resources of a grid.

The most important grid middleware stacks are:

  • EMI from the EU EGI project (European Grid Infrastructure)
  • gLite from the EU defunct EGEE project (gLite components are now within EMI)
  • Globus Toolkit developed by the Globus Alliance
  • OMII from the Open Middleware Infrastruture Institute

Within LCG a hybrid set of middleware is assembled from the Globus Toolkit, the EMI/gLite middleware and older components from the EU Data Grid Project (EDG).