ROS: The Rollback-One-Step Method to Minimize the Waiting Time during Debugging Long-Running Parallel Programs

Thoai, Nam; Kranzlmller, Dieter; Volkert, Jens

doi:10.1007/3-540-36569-9_45

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Checkpoints In Parallel Programs1

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2006

2015

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Cited by 2 publications

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“…one must take care of messages that would cross a checkpoint line, and others. Details on that can be found in [16].…”

Section: Checkpoints In Parallel Programsmentioning

confidence: 99%

Using Sequential Debugging Techniques with Massively Parallel Programs

Schaubschläger¹,

Kranzlmüller²,

Volkert³

2006

Computational Science – ICCS 2006

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Debugging is a crucial part of the software development process. Especially massively-parallel programs impose huge difficulties to program analyis and debugging due to their higher complexity compared to sequential programs. For debugging and analysing parallel programs there are several tools available, but many of these fail in case of massively-parallel programs with potentially thousands of processes. In this work we introduce the single process debugging strategy, a scalable debugging strategy for massively-parallel programs. The goal of this strategy is to make debugging large scale programs as simple and straightforward as debugging sequential programs. This is achieved by adapting and combining several techniques which are well known from sequential debugging. In combination, these techniques give the user the possibility to execute and investigate small fractions of a possibly huge parallel program, without having to (re-)execute the entire program.

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“…one must take care of messages that would cross a checkpoint line, and others. Details on that can be found in [16].…”

Section: Checkpoints In Parallel Programsmentioning

confidence: 99%