Treffer: Design and Development of a Scalable Distributed Debugger for Cluster Computing.

Debugging is an essential part of parallel and distributed processing. However, developing parallel and distributed debugger is difficult. This is especially true for cluster computing where heterogeneity presents. In this paper, we first give a survey of the current debugging techniques and existing tools, and then present a client–server debugging model. Based on this model, we discuss the design and development of a practical scalable distributed debugging system for cluster computing in detail, and give two case studies to show how the distributed debugging system efficiently supports debugging message-passing programs such as various MPI and PVM programs. The newly developed distributed debugger is based on the sequential debugger gdb and dbx. It has the capability of scaling to handle hundreds of processes. Its interfaces are completely implemented in Java, and its graphical user interface is the same on all computing platforms. In addition, it is portable, easy to learn and use. [ABSTRACT FROM AUTHOR]

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