DRAM row buffer conflicts can increase memory access latency significantly. This paper presents a new pageallocation-based optimization that works seamlessly together with some existing hardware and software optimizat...
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DRAM row buffer conflicts can increase memory access latency significantly. This paper presents a new pageallocation-based optimization that works seamlessly together with some existing hardware and software optimizations to eliminate significantly more row buffer conflicts. Validation in simulation using a set of selected scientific and engineering benchmarks against a few representative memory controller optimizations shows that our method can reduce row buffer miss rates by up to 76% （with an average of 37.4%）. This reduction in row buffer miss rates will be translated into performance speedups by up to 15% （with an average of 5%）.
It my great pleasure and honor to welcome you to FoSER 2010: The FSE/SDP Workshop on the Future of Software Engineering Research. This workshop was organized in collaboration with and made possible by generous support...
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ISBN:
(纸本)9781450304276
It my great pleasure and honor to welcome you to FoSER 2010: The FSE/SDP Workshop on the Future of Software Engineering Research. This workshop was organized in collaboration with and made possible by generous support from the Software Design and Productivity Coordinating group (SDP) of the U.S. National Coordination Office (NCO) for Networking and Information Technology Research and Development (NITRD), and the National science Foundation (NSF). This one-time, international working conference has brought together top academic and industrial researchers and government research funding agency personnel from around the world to engage in an extended discussion of consequential new ideas about the future of our field. The ideas produced by this workshop will be disseminated in two forms. First, the position papers accepted by the program committee will be published in a companion to the Proceedings of FSE-18. Second, the workshop findings will be published subsequently in a special report by NITRD/SDP. The call for papers for FoSER 2010 solicited 4-page position papers with new ideas about the future of software and software-reliant systems, and the research that will be needed to meet future needs. Papers were expected to be creative and thought-provoking, and to articulate compelling new perspectives, positions, problem formulations, assumptions and approaches. The workshop did not seek, and did not accept, technical research papers or abstracts. The workshop received a total of 139 position papers. Of these, 90 papers (65%) were accepted. Each paper was reviewed by at least two members of the workshop program committee. The committee was asked to accept all papers presenting significant new ideas about how our field should move forward. Copyright 2010 ACM.
The SecureMDD approach aims to generate both, a formal specification for verification and executable code, from UML diagrams. The UML models define the static as well as dynamic components of the system under developm...
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ISBN:
(纸本)9781424437252
The SecureMDD approach aims to generate both, a formal specification for verification and executable code, from UML diagrams. The UML models define the static as well as dynamic components of the system under development. This model-driven approach is focused on security-critical applications that are based on cryptographic protocols, especially Java Card applications. In this paper we describe the generation of the formal specification from the UML model which is then used as input for our interactive verification system KIV. The formal specification is based on abstract state machines and algebraic specifications. It allows to formulate and to prove application-specific security properties.
Multithreaded Object-Oriented programming in concurrency environment using object-oriented technology is a complex activity. Programmers need to be aware of issues unrelated to their domain of problem, and are often u...
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Multithreaded Object-Oriented programming in concurrency environment using object-oriented technology is a complex activity. Programmers need to be aware of issues unrelated to their domain of problem, and are often unprepared for the challenges of the concurrent object-oriented programming brings. The interaction of their components becomes more complex, and makes it difficult to validate the design and correctness of the implemented program. Supporting separation of concerns in the design and implementation of the multithreaded object-oriented programming can provide a number of benefits such as comprehension, reusability, extensibility and adaptability in both design and implementation. We have tackled this problem by adopting the technique of separation of concerns in multithreaded object-oriented programming. In this paper we demonstrate an aspect-oriented approach that can be used for multithreaded object-oriented programming. We also show how better the separation of concerns in components. Readers/Writers problem is demonstrated using an aspect-oriented approach. Our methodology, which is based on aspect-oriented techniques as well as language and architecture independence, is an aspect-oriented framework.
ScatterFactory2 is a model-driven eclipse-based framework for the new generation of our WSN platform ScatterWeb The already deployed Modular Sensor Boards (MSBs) can be configured, programmed and tested at the same ti...
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A DSM protocol ensures that a thread can access data allocated on another machine using some consistency protocol. The consistency protocol can either replicate the data and unify replica changes periodically or the t...
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ISBN:
(纸本)9780889867741
A DSM protocol ensures that a thread can access data allocated on another machine using some consistency protocol. The consistency protocol can either replicate the data and unify replica changes periodically or the thread, upon remote access, can migrate to the machine that hosts the data and access the data there. There is a performance tradeoff between these extremes. Data replication suffers from a high memory overhead as every replicated object or page consumes memory on each machine. On the other hand, it is as bad to migrate threads upon each remote access since repeated accesses to the same distributed data set will cause repeated network communication whereas replication will incur this only once (at the cost of increased administration overhead to manage the replicas). We propose a hybrid protocol that uses selective replication with thread migration as its default. Even in the presence of extreme memory pressure and thread-migrations, our protocol reaches or exceeds the performance that can be achieved by means of manual replication and explicit changes of the application's code.
We propose a novel execution model for the implicitly parallel execution of data parallel programs in the presence of general I/O operations. This model is called hybrid because it combines the advantages of the stand...
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ScatterFactory2 is a model-driven eclipse-based framework for the new generation of our WSN platform ScatterWeb The already deployed Modular Sensor Boards (MSBs) can be configured, programmed and tested at the same ti...
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ScatterFactory2 is a model-driven eclipse-based framework for the new generation of our WSN platform ScatterWeb The already deployed Modular Sensor Boards (MSBs) can be configured, programmed and tested at the same time. This is made possible by the combination of plug-ins for ScatterFactory2. Apart from the high grade of automation, the focus of ScatterFactory2 lies with the aspect of human-computer interfaces for WSN. ScatterFactory2 provides the opportunity to examine different characteristics and properties of WSN-applications illustratively and interactively. The plug-in oriented architecture encourages the enhancement of the tool, when new questions concerning WSN arise. ScatterFactory2 is based wholly on open source components, which are available at no extra cost.
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