The group approach in cooperative work and in load balancing
Progress in computer research
Groups Partitioning Over CORBA for Cooperative Work
Cluster Computing
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To create cooperative work applications quickly and efficiently, we have developed a cooperative platform called CAliF: Cooperative Application Framework. This system was defined with four layers. We propose a new consistency protocol for the distributed shared memory (DSM) layer where different shared objects are replicated at each site. CAliF uses the DSM to allow programmers to share objects or variables without having to manage the exchange. We present an algorithm which uses the token technique. The token is data structure which contains the updates of shared data. These data are carried through the ring on the token, named Pilgrim. Pilgrim protocol provides both reliable consistency and guaranteed performance according to the type of application described. The protocol is discussed and proved, and we demonstrate its qualities.