Guadi 简介.ppt

Framework Gaudi What’s Framework ? Why to study Gaudi? What’s Gaudi？ Getting Started Let’s work with Gaudi! What’s not known for us? What’s the Framework? (1) Framework It provides a set of tools which facilitate the writing of analysis programs. Easy to use and extremely flexible. What’s the Framework? (2) 数据处理或分析的平台（框架） CERNLIB CLHEP AIDA ROOT PYTHON BOOST What’s the Framework? (3) Requirements Simplicity: for both development and maintenance Modularity: software components with well-defined interfaces and easily plugged into the system. Reliability: ideally constructed on a proved architecture. Flexibility: hide implementation details from software component users and be able to chose different underlying technology with no effect on applications. Why we study Gaudi? (1) In past, Many experiments have their own framework： BES: drink somber KEK: BASF Babar …… Gaudi: fulfiling all these requirements above. Firstly developed by LHCb. ATLAS , HARP, GLAST, OPERA, BESIII What’s Gaudi? (1) Overview LHCb data processing applications framework. Designed using object-oriented techniques. Coded using C++ programming language. Implementing the full range of offline computing task: the generation of events simulation of the detector, event reconstruction test beam data analysis detector alignment visualization ,etc. What’s Gaudi? (2) Characteristic Separation of persistent and transient data. Separation between data and algorithms Isolation of algorithms from data storage. User code encapsulated in few places Well defined generic component interfaces Separation of persistent and transient data. Separation between data and algorithms Data The methods in the data objects will be limited to manipulations of internal data members. setX() or getX Algorithm The algorithms manipu