Download Visualization of Scientific Parallel Programs by Gerald Tomas PDF

By Gerald Tomas

The tremendous attempt of parallelizing clinical courses is just justified if the ensuing codes are effective. therefore, every kind of functionality tuning are vital to parallel software program improvement. yet functionality advancements are even more tough to accomplish with parallel courses than with sequential courses. a technique to beat this trouble is to herald graphical instruments. This monograph covers fresh advancements in parallel software visualization concepts and instruments and demonstrates the appliance of particular visualization concepts and software program instruments to medical parallel courses. the answer of preliminary worth difficulties of standard differential equations, and numerical integration are taken care of intimately as very important examples.

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6 PIE The PIE system (Rudolph, Segall [111]) offers a framework for the development of efficient parallel software. Many efforts are made to predict, detect, and avoid performance degradation. It consists of three components: the modular programming metalanguage, the program constructor and the implementation assistant. 1 Modular Programming Metalanguage The goals of the modular programming (MP) metalanguage are to provide support for the efficient manipulation of parallel modules, fast parallel access to shared data constructs, and programming for observability in a languageindependent fashion.

Of course, TRACEVIEW cannot support all trace-visualization models, but it does support frequently occurring, simple visualization problems, and provides extension mechanisms for customizing more complex problems. Its graphical interface is based on the Motif widget set. The concept of TRACEVIEW is based on a trace-visualization session, which is the root of a hierarchical tree structure dealing with trace files, views and displays. A session is related with one or more trace files. For each trace file the user can define a set of views.

Different levels of abstraction offer the choice of different levels of detail granularity. TOPSYS users can look at the parallel program at the following levels: System level: Performance measurements of all processor nodes are summed up to give a total system performance. N o d e level: Performance measurements for each node are possible. 8. ) is available. S o u r c e c o d e level: The performance of one sequential task can be observed, and the execution of several procedures of statements can be measured.

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