Debugging Parallel Programs in DVM-System

A Visual Performance Debugging System for Parallel Programs

This paper describes a visuai performance debugging system for parallel programs. Main features of the system are visualization of program execution, modification of processor scheduling using direct manipulation, simulation of execution of the modified program, and automatic modification of the source program. Visualization and direct manipulation enhance ease of operation. Simulation allows a...

Multi Level Debugging of Parallel Message Passing Programs A different approach to debugging parallel programs

Why Debugging Parallel Programs Needs Visualization?

The goal of debugging is location and correction of bugs in arbitrary programs to improve their reliability. Since errors are established by an application’s source code, which is in most cases implemented with some kind of textual language, the traditional focus of debugging is on textual representations. While this may be sufficient for sequential programs, it limits the usefulness of paralle...

passert: A Tool for Debugging Parallel Programs

passert is a new debugging tool for parallel programs which allows programmers to express correctness criteria using a simple, expressive assertion language. We demonstrate how these parallel assertions allow the detection and diagnosis of real world concurrency bugs, detecting 14/17 bugs in an independently selected set of bugs from open source software. We describe a runtime checker which all...

Creating Views for Debugging Parallel Programs

An extensible parallel debugger helps programmers create new views of their programs’ behavior. This paper describes the features of the Panorama parallel debugger that programmers can use to design a variety of specialized debugging views. A graphical tool for designing elements of a display simplifies the most tedious steps in creating program views. Programmers can incorporate these new view...