Oracle Grid Engine, previously known as Sun Grid Engine (SGE), CODINE (Computing in Distributed Networked Environments) or GRD (Global Resource Director), is an open source batch-queuing system, developed and supported by Sun Microsystems. Sun once also sold a commercial product based on SGE, known as N1 Grid Engine (N1GE).
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In Dec 2010, Oracle officially passed on the torch for maintaining the Grid Engine open source code base to the Open Grid Scheduler project.