NextGen eXtreme porting

Varma, Pradeep; Anand, Ashok; Pazel, Donald P.; Tibbitts, Beth R.

doi:10.1145/1066677.1067018

Cited by 7 publications

(1 citation statement)

References 22 publications

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“…Software porting is one of the most common maintenance activities, but little attention has been given to derive a detailed process and planning support for it until recently when Varma described how eXtreme Programming (XP) practices could provide a detailed process for quality porting [3,4]. XP is a new software development methodology that advocates frequent 'releases' of a working software in short development cycles to improve productivity in response to changing customer requirements.…”

Section: Related Workmentioning

confidence: 99%

KLONOS: Similarity‐based planning tool support for porting scientific applications

Ding

Hsu

Hernández

et al. 2012

Concurrency and Computation

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In this paper, we propose a methodology to address an important aspect of software porting that receives little attention, namely planning support. When a scientific application consisting of many subroutines is to be ported, the selection of key subroutines greatly impacts the productivity and overall porting strategy because these subroutines may represent a significant feature of the code in terms of functionality, code structure, or performance. They may as well serve as indicators of the difficulty and amount of effort involved in porting a code to a new platform. The proposed methodology is based on the idea that a set of similar subroutines can be ported with similar strategies and result in a similar-quality porting. By viewing subroutines as data and operator sequences, analogous to DNA sequences, we are able to use various bioinformatics techniques to conduct the similarity analysis of subroutines while mitigating NP-complete challenges of other approaches. To the best of our knowledge, we are one of the first to explore this bioinspired view of program to target the porting planning problem. In this paper, we describe our methodology and present a tool called Klonos to facilitate the execution of the methodology, which integrates to well known bioinformatics tools. As a proof of concept, we use Klonos to conduct experiments to find strategies for porting of several scientific benchmarks and applications. We also have identified some of the advantages and limitations of the bio-inspired view of a program code and the future work. 1073Besides these challenges faced by the application developers, many scientific applications tend to be long lived and comprise large code bases developed by a team of people and often outlive the involvement of any single developer. To maintain those applications is not an easy task, let alone to port them to the new system while the efficiency and correctness have to be guaranteed. To rewrite the entire application is too expensive and seems unrealistic. On the other hand, simulation platforms emerge at a frequency much higher than the lifetime of such application code bases, requiring at times fairly intrusive changes to fully benefit from the capabilities such platforms provide, which take years to develop. These changes are often made manually because of the lack of tool support. Automation of the process is rather impractical given its complexity, the level of tool support, and the lack of tool integration that automates user-driven porting strategies. Thus, the porting of scientific applications is both time consuming, labor intensive, and erroneous. Even an 'expert team' needs to start somewhere, this team will initiate the effort to restructure the code in order to exploit the new systems features, a very challenging error-prone process; the quality of the results will depend critically on the experience of the experts involved.In order to ease the effort for the software porting, we present a methodology to address an important aspect of software porting that receiv...

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Section: Related Workmentioning

confidence: 99%

KLONOS: Similarity‐based planning tool support for porting scientific applications

Ding

Hsu

Hernández

et al. 2012

Concurrency and Computation

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A Storytest-Driven Approach to the Migration of Legacy Systems

Abbattista

Bianchi

Lanubile

2009

Lecture Notes in Business Information Processing

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In this paper, we propose an agile approach, for the migration of legacy software which combines a user story-based iterative process with automated acceptance testing. The proposed approach, named Storytest-Driven Migration (STDM), requires that acceptance tests are written both on the legacy and target versions of a software system. Because of their relevance, the quality of automated acceptance tests is assured through software inspections. As a proof of concept, we conducted a first migration project of a web application towards both a web application framework and a mobile platform

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Anchored Text for Software Weaving and Merging

Varma

2009

2009 Third IEEE International Conference on Secure Software Integration and Reliability Improvement

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Text-based software merge/refactoring systems are predominantly used. Anchored text, a datatype with first-class location anchors and greater commutativity of software merge operations has been proposed recently.In this paper we develop anchored text as a novel weaver for simultaneous, separate concerns. Irregular, crosscutting concerns such as porting issues are applicable simultaneously (multidimensional separation of multi-target porting concerns), in order to allow for choice of a desired subset for a given port. Form-checking rules can be specified with individual concerns, to verify their correct weaving. The simultaneous concerns model can be viewed as an offline, concurrent change weaving problem, according to which a direct implementation is provided. A novel wait-free implementation of an online model, wherein concurrent changes arrive in a dynamic sequence but with fixed scheduling tags is provided and a highly-concurrent version of the same described using speculative scheduling. All these implementations use minimal synchronisation primitives only, namely atomic registers.

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NextGen eXtreme porting

Cited by 7 publications

References 22 publications

KLONOS: Similarity‐based planning tool support for porting scientific applications

KLONOS: Similarity‐based planning tool support for porting scientific applications

A Storytest-Driven Approach to the Migration of Legacy Systems

Anchored Text for Software Weaving and Merging

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