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Author: Publisher: ISBN: Category : High performance computing Languages : en Pages :
Book Description
High-performance computing (HPC) is in a state of transition. HPC users have traditionally relied upon two things to supply them with processing power: speed of the central processing units (CPUs) and the scalability of the system. There are problems with this approach. Physical limitations are curtailing clock speed increases in general-purpose CPUs, the von Neumann load-execute-store approach does not map well to every computational problem, and systems of thousands of processors might be very inefficient depending upon processor interconnection limitations. Several versatile, commodity-based options are coming on line that could help address these deficiencies. Options now include throughput architectures such as graphics processing units (GPUs), reconfigurable systems built on field programmable gate arrays (FPGAs), multi- and many core x86-based systems, and heterogeneous systems such as the Cell processor (incorporating a standard CPU and vector processing units). Each of these can be used to provide performance that, at one time, was only available by using Application Specific Integrated Circuits (ASICs) or large-scale fixed HPC assets. Newer methodologies hold out the hope of being more cost efficient and deployable along with providing faster deployment and development times and allowing the use of algorithms that remain modifiable at all stages of development and fielding. This report discusses our research on blending these asymmetric computing resources and addresses their use from the U.S. Army HPC perspective. We focus on the different methodologies and discuss performance from the perspective of kernels and applications that are relevant to fielding HPC technologies that will benefit the U.S. Army warfighter.
Author: Publisher: ISBN: Category : High performance computing Languages : en Pages :
Book Description
High-performance computing (HPC) is in a state of transition. HPC users have traditionally relied upon two things to supply them with processing power: speed of the central processing units (CPUs) and the scalability of the system. There are problems with this approach. Physical limitations are curtailing clock speed increases in general-purpose CPUs, the von Neumann load-execute-store approach does not map well to every computational problem, and systems of thousands of processors might be very inefficient depending upon processor interconnection limitations. Several versatile, commodity-based options are coming on line that could help address these deficiencies. Options now include throughput architectures such as graphics processing units (GPUs), reconfigurable systems built on field programmable gate arrays (FPGAs), multi- and many core x86-based systems, and heterogeneous systems such as the Cell processor (incorporating a standard CPU and vector processing units). Each of these can be used to provide performance that, at one time, was only available by using Application Specific Integrated Circuits (ASICs) or large-scale fixed HPC assets. Newer methodologies hold out the hope of being more cost efficient and deployable along with providing faster deployment and development times and allowing the use of algorithms that remain modifiable at all stages of development and fielding. This report discusses our research on blending these asymmetric computing resources and addresses their use from the U.S. Army HPC perspective. We focus on the different methodologies and discuss performance from the perspective of kernels and applications that are relevant to fielding HPC technologies that will benefit the U.S. Army warfighter.
Author: Robinson E. Pino Publisher: Springer Science & Business Media ISBN: 146147597X Category : Computers Languages : en Pages : 283
Book Description
Network Science and Cybersecurity introduces new research and development efforts for cybersecurity solutions and applications taking place within various U.S. Government Departments of Defense, industry and academic laboratories. This book examines new algorithms and tools, technology platforms and reconfigurable technologies for cybersecurity systems. Anomaly-based intrusion detection systems (IDS) are explored as a key component of any general network intrusion detection service, complementing signature-based IDS components by attempting to identify novel attacks. These attacks may not yet be known or have well-developed signatures. Methods are also suggested to simplify the construction of metrics in such a manner that they retain their ability to effectively cluster data, while simultaneously easing human interpretation of outliers. This is a professional book for practitioners or government employees working in cybersecurity, and can also be used as a reference. Advanced-level students in computer science or electrical engineering studying security will also find this book useful .
Author: John W. Lyons Publisher: ISBN: Category : High performance computing Languages : en Pages : 22
Book Description
The long, drawn-out and expensive acquisition process in the military is a serious problem at any time, but especially so in these times of tight and declining budgets. HPC has been used, on occasion, by the military and some large companies to speed the acquisition and design process by using computer modeling and computer experimentation in place of the much longer and more expensive traditional process of building prototypes, testing, redesigning, building more prototypes, and more testing, until the design is final. The authors begin with a discussion of the growth and trends in HPC, then discuss how the Army has utilized HPC in research. Included here is the Army's exploration of the possibilities for design and production of new systems. Turning to manufacturing-related topics, the authors then discuss how industry has advanced the use of HPC and include several case histories. Next, they present some contributions to HPC advancement in several current programs being conducted by other government agencies. The paper concludes with closing comments and recommendations for strengthening Army acquisition using advanced computer technology.
Author: National Research Council Publisher: National Academies Press ISBN: 0309064856 Category : Technology & Engineering Languages : en Pages : 299
Book Description
Rapid progress in information and communications technologies is dramatically enhancing the strategic role of information, positioning effective exploitation of these technology advances as a critical success factor in military affairs. These technology advances are drivers and enablers for the "nervous system" of the militaryâ€"its command, control, communications, computers, and intelligence (C4I) systemsâ€"to more effectively use the "muscle" side of the military. Authored by a committee of experts drawn equally from the military and commercial sectors, Realizing the Potential of C4I identifies three major areas as fundamental challenges to the full Department of Defense (DOD) exploitation of C4I technologyâ€"information systems security, interoperability, and various aspects of DOD process and culture. The book details principles by which to assess DOD efforts in these areas over the long term and provides specific, more immediately actionable recommendations. Although DOD is the focus of this book, the principles and issues presented are also relevant to interoperability, architecture, and security challenges faced by government as a whole and by large, complex public and private enterprises across the economy.
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 456
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Author: Robinson E. Pino
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Author: John W. Lyons
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Author: United States. Congress. Senate. Committee on Armed Services
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