Paper Info
Title
Spider - An Advanced Symbolic Debugger For Fortran 90/Hpf Programs
Abstract
Debuggers play an important role in developing parallel applications. They are used to control the state of many processes, to present distributed information in a concise and clear way, to observe the execution behavior, and to detect and locate programming errors. More sophisticated debugging systems also try to improve understanding of global execution behavior and intricate details of a program. In this paper we describe the design and implementation of SPiDER, which is an interactive source-level debugging system for both regular and irregular High-Performance Fortran (HPF) programs. SPiDER combines a base debugging system for message-passing programs with a high-level debugger that interfaces with an HPF compiler. SPiDER, in addition to conventional debugging functionality, allows a single process of a parallel program to be expected or the entire program to be examined from a global point of view. A sophisticated visualization system has been developed and included in SPiDER to visualize data distributions, data-to-processor mapping relationships, and array values. SPiDER enables a programmer to dynamically change data distributions as well as array values. For arrays whose distribution can change during program execution, an animated replay displays the distribution sequence together with the associated source code location. Array values can be stored at individual execution points and compared against each other to examine execution behavior (e.g. convergence behavior of a numerical algorithm). Finally, SPiDER also offers limited support to evaluate the performance of parallel programs through a graphical load diagram. SPiDER has been fully implemented and is currently being used for the development of various real-world applications. Several experiments are presented that demonstrate the usefulness of SPiDER. Copyright (C) 2002 John Wiley Sons, Ltd.
Year
DOI
Venue
2002
10.1002/cpe.618
CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE
Keywords
DocType
Volume
debugger, data parallel programs, message passing programs
Journal
14
Issue
ISSN
Citations 
2
1532-0626
1
PageRank 
References 
Authors
0.38
7
7
Name
Order
Citations
PageRank
Thomas Fahringer12847254.09
K. Sowa-Pieklo221.11
Przemyslaw Czerwinski310.38
Peter Brezany427643.73
Marian Bubak51497231.68
Rainer Koppler6384.91
Roland Wismüller743666.49