Server Server Local Server Local Server
نویسنده
چکیده
Distributed processing systems are considered to solve the challenging requirements of trigger and data acquisition systems for future HEP experiments. The aim of this work is to present a software environment to control and monitor large scale parallel processing systems based on a distributed client-server approach developed in Java. One server task may control several processing nodes, switching elements or controllers for diierent subsystems. Servers are designed as multi-thread applications for eecient communications with others objects. Servers communicate between themselves by using Remote Methods Invocation (RMI) in a peer-to-peer mechanism. This distributed server layer has to provide a dynamic and transparent access from any client to all the resources in the system. The graphical user interface programs, which are platform independent, may be transferred to any client via the http protocol. In this scheme the control and monitor tasks are distributed among servers and the network controls the ow of information among servers and clients providing a exible mechanism for monitoring and controlling large heterogeneous distributed systems.
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