Download or read book A Scalable Mixed level Approach to Dynamic Analysis of C and C Programs written by Philip Jia Guo and published by . This book was released on 2006 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis addresses the difficult task of constructing robust and scalable dynamic program analysis tools for programs written in memory-unsafe languages such as C and C++, especially those that are interested in observing the contents of data structures at run time. In this thesis, I first introduce my novel mixed-level approach to dynamic analysis, which combines the advantages of both source- and binary-based approaches. Second, I present a tool framework that embodies the mixed-level approach. This framework provides memory safety guarantees, allows tools built upon it to access rich source- and binary-level information simultaneously at run time, and enables tools to scale to large, real-world C and C++ programs on the order of millions of lines of code. Third, I present two dynamic analysis tools built upon my framework - one for performing value profiling and the other for performing dynamic inference of abstract types - and describe how they far surpass previous analyses in terms of scalability, robustness, and applicability. Lastly, I present several case studies demonstrating how these tools aid both humans and automated tools in several program analysis tasks: improving human understanding of unfamiliar code, invariant detection, and data structure repair.
Download or read book An Improved Scalable Mixed level Approach to Dynamic Analysis of C and C Programs written by Robert Andrew Rudd (M. Eng.) and published by . This book was released on 2010 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, I address the challenges of developing tools which use a mixed-level approach to dynamic binary analysis. The mixed-level approach combines advantages of both source- based and binary-based approaches to dynamic analysis, but comes with the added challenge of dealing with the implementation details of a specific implementation of the target language. This thesis describes the implementation of three existing tools which use the mixed-level approach: Fjalar, a C/C++ dynamic analysis framework, Kvasir, A C/C++ value profiling tool, and Dyncomp, a tool for inferring the abstract types of a C or C++ program. Additionally, this thesis describes the steps I took in increasing the maintainability and portability of these tools. I investigated and documented platform specific dependencies; I documented the process of merging in upstream changes of Valgrind, the Dynamic Binary Instrumenter Fjalar is built on, to aid Fjalar in keeping in-sync with Valgrind bug-fixes; and I implemented a tool for debugging Dyncomp errors.
Download or read book Runtime Verification written by Shaz Qadeer and published by Springer. This book was released on 2013-01-16 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the Third International Conference on Runtime Verification, RV 2012, held in Istanbul, Turkey, in September 2012. The 25 revised full papers presented together with 3 invited papers and 2 tutorials were carefully reviewed and selected from 50 submissions. The papers address a wide range of specification languages and formalisms for traces, specification mining, program instrumentation, monitor construction techniques, logging, recording, and replay, fault detection, localization, recovery and repair, program steering and adaptation, metrics and statistical information gathering, combination of static and dynamic analyses and program execution visualization.
Download or read book An Integrated Static and Dynamic Program Analysis Framework for Checking Concurrency related Programming Errors written by Qichang Chen and published by . This book was released on 2011 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, the growing popularity of the multi-core/multi-processor hardware has forced many programs to be well-written concurrent programs. However, developing concurrent programs is intrinsically difficult. Concurrency introduces the possibility of errors that do not exist in sequential programs. The dissertation presents an integrated static and dynamic program analysis framework to address these concurrent errors. First, it presents a scalable hybrid approach that integrates static and dynamic analyses to detect the concurrency errors including the notorious data race and atomicity violation. In the integrated approach, we first perform static analysis to obtain summaries of synchronizations and accesses to shared variables. The static summaries are then instantiated with runtime values during dynamic executions to speculatively approximate the behaviors of branches that are not taken. To reduce the overhead and make the analysis scalable, we designed and implemented a distributed monitoring and analysis framework in which the runtime monitoring and analysis are carried out on two separate machines which communicated to each other using the network. We designed and implemented this hybrid approach in a tool called DHAVE and evaluated it on several benchmarks. Compared to dynamic analysis, the hybrid approach is able to detect atomicity violations and other concurrency errors in unexecuted parts of the code efficiently. Compared to static analysis, the hybrid approach produces fewer false alarms and is more accurate. The second part of the dissertation presents a self adaptive monitoring (SAM) framework that include several novel compile-time and run-time instrumentation and monitoring optimization techniques that aim to significantly reduce the overhead of dynamic analysis on multithreaded programs. SAM (Self-Adaptive Monitoring) can selectively turn off excessive monitoring on a repeatedly executed code region if the current program context has been determined to be redundant, which may assist many existing dynamic detection tools to improve their performance. Specifically, we approximate the program context for each code region as a set of concurrent context variables, which include path-critical variables and all shared variables accessed in that region. The path-critical variables are inferred by an extended use-def dataflow analysis, and the shared variables for each code region are identified using our prior hybrid thread-based escape analysis. We have implemented the tool in Java and evaluated it on a set of real world programs. Our experimental results show that it significantly reduces the runtime overhead of the dynamic atomicity violation detection while roughly keeping the accuracy and soundness of underlying runtime detection tools. Finally, the dissertation describes a static analysis assisted dynamic program analysis that can reveal concurrency errors in the programs written using the OpenMP specification that is widely used in the scientific community. To detect race conditions, we first conduct an intraprocedural static analysis on the OpenMP programs to identify the variables that are likely to be involved in race conditions (including flush errors). The static analysis results are then used to guide the program instrumentation for the dynamic analysis. Finally, a lockset-based dynamic algorithm is applied on the running program to filter and refine the error report. Our experimental evaluation over several micro benchmarks and real-world applications shows that the hybrid approach imposes very light-weight performance overhead over the target programs while removing many spurious reported errors from the static lockset analysis.
Download or read book High Performance Computing written by Alex Veidenbaum and published by Springer Science & Business Media. This book was released on 2003-10-09 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 5th International Symposium on High-Performance Computing, ISHPC 2003, held in Tokyo-Odaiba, Japan in October 2003. The 23 revised full papers and 16 short papers presented together with 4 invited papers and 7 refereed papers accepted for a concurrently held workshop on OpenMP (WOMPEI 2003) were carefully reviewed and selected from 58 submissions. The papers are organized in topical sections on architecture, software, applications, and ITBL.
Download or read book Federal Register written by and published by . This book was released on 2000-12-14 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Performance Computing in Science and Engineering Garching Munich 2007 written by Siegfried Wagner and published by Springer Science & Business Media. This book was released on 2008-10-22 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the fourth time, the Leibniz Supercomputing Centre (LRZ) and the Com- tence Network for Technical, Scienti c High Performance Computing in Bavaria (KONWIHR) publishes the results from scienti c projects conducted on the c- puter systems HLRB I and II (High Performance Computer in Bavaria). This book reports the research carried out on the HLRB systems within the last three years and compiles the proceedings of the Third Joint HLRB and KONWIHR Result and Reviewing Workshop (3rd and 4th December 2007) in Garching. In 2000, HLRB I was the rst system in Europe that was capable of performing more than one Tera op/s or one billion oating point operations per second. In 2006 it was replaced by HLRB II. After a substantial upgrade it now achieves a peak performance of more than 62 Tera op/s. To install and operate this powerful system, LRZ had to move to its new facilities in Garching. However, the situation regarding the need for more computation cycles has not changed much since 2000. The demand for higher performance is still present, a trend that is likely to continue for the foreseeable future. Other resources like memory and disk space are currently in suf cient abundance on this new system.
Download or read book Languages and Compilers for Parallel Computing written by Sanjay Rajopadhye and published by Springer. This book was released on 2013-01-18 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the 24th International Workshop on Languages and Compilers for Parallel Computing, LCPC 2011, held in Fort Collins, CO, USA, in September 2011. The 19 revised full papers presented and 19 poster papers were carefully reviewed and selected from 52 submissions. The scope of the workshop spans the theoretical and practical aspects of parallel and high-performance computing, and targets parallel platforms including concurrent, multithreaded, multicore, accelerator, multiprocessor, and cluster systems.
Download or read book Languages and Compilers for Parallel Computing written by José Nelson Amaral and published by Springer Science & Business Media. This book was released on 2008-12 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the 21th International Workshop on Languages and Compilers for Parallel Computing, LCPC 2008, held in Edmonton, Canada, in July/August 2008. The 18 revised full papers and 6 revised short papers presented were carefully reviewed and selected from 35 submissions. The papers address all aspects of languages, compiler techniques, run-time environments, and compiler-related performance evaluation for parallel and high-performance computing and comprise also presentations on program analysis that are precursors of high performance in parallel environments.
Download or read book Computer Aided Systems Theory EUROCAST 2022 written by Roberto Moreno-Díaz and published by Springer Nature. This book was released on 2023-02-09 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 18th International Conference on Computer-Aided Systems Theory, EUROCAST 2022, held in Las Palmas de Gran Canaria, Spain, during February 20–25, 2022. The 77 full papers included in this book were carefully reviewed and selected from 110 submissions. They were organized in topical sections as follows: Systems Theory and Applications, Theory and Applications of Metaheuristic Algorithms, Model-Based System Design, Verification and Simulation, Applications of Signal Processing Technology, Artificial Intelligence and Data Mining for Intelligent Transportation Systems and Smart Mobility, Computer Vision, Machine Learning for Image Analysis and Applications, Computer and Systems Based Methods and Electronic Technologies in Medicine, Systems in Industrial Robotics, Automation and IoT, Systems Thinking. Relevance for Technology, Science and Management Professionals.
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developing Networks using Artificial Intelligence written by Haipeng Yao and published by Springer. This book was released on 2019-04-26 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book mainly discusses the most important issues in artificial intelligence-aided future networks, such as applying different ML approaches to investigate solutions to intelligently monitor, control and optimize networking. The authors focus on four scenarios of successfully applying machine learning in network space. It also discusses the main challenge of network traffic intelligent awareness and introduces several machine learning-based traffic awareness algorithms, such as traffic classification, anomaly traffic identification and traffic prediction. The authors introduce some ML approaches like reinforcement learning to deal with network control problem in this book. Traditional works on the control plane largely rely on a manual process in configuring forwarding, which cannot be employed for today's network conditions. To address this issue, several artificial intelligence approaches for self-learning control strategies are introduced. In addition, resource management problems are ubiquitous in the networking field, such as job scheduling, bitrate adaptation in video streaming and virtual machine placement in cloud computing. Compared with the traditional with-box approach, the authors present some ML methods to solve the complexity network resource allocation problems. Finally, semantic comprehension function is introduced to the network to understand the high-level business intent in this book. With Software-Defined Networking (SDN), Network Function Virtualization (NFV), 5th Generation Wireless Systems (5G) development, the global network is undergoing profound restructuring and transformation. However, with the improvement of the flexibility and scalability of the networks, as well as the ever-increasing complexity of networks, makes effective monitoring, overall control, and optimization of the network extremely difficult. Recently, adding intelligence to the control plane through AI&ML become a trend and a direction of network development This book's expected audience includes professors, researchers, scientists, practitioners, engineers, industry managers, and government research workers, who work in the fields of intelligent network. Advanced-level students studying computer science and electrical engineering will also find this book useful as a secondary textbook.
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1993 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974-08 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technology for Large Space Systems written by and published by . This book was released on 1989 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cyber Security and Computer Science written by Touhid Bhuiyan and published by Springer Nature. This book was released on 2020-07-29 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed post-conference proceedings of the Second International Conference on Cyber Security and Computer Science, ICONCS 2020, held in Dhaka, Bangladesh, in February 2020. The 58 full papers were carefully reviewed and selected from 133 submissions. The papers detail new ideas, inventions, and application experiences to cyber security systems. They are organized in topical sections on optimization problems; image steganography and risk analysis on web applications; machine learning in disease diagnosis and monitoring; computer vision and image processing in health care; text and speech processing; machine learning in health care; blockchain applications; computer vision and image processing in health care; malware analysis; computer vision; future technology applications; computer networks; machine learning on imbalanced data; computer security; Bangla language processing.
