University of Almeria

Displaying 1-40 of 65 results

  • White Papers // Jan 2014

    The Verification of the On-Chip COMA Cache Coherence Protocol

    In this paper, the authors give a correctness proof for the on-chip COMA cache coherence protocol that supports the Microgrid of micro-threaded architecture, a multi-core architecture capable of integrating hundreds to hundreds of thousands of processors on single silicon chip. They use the Abstract State Machine (ASM) as a theoretical...

    Provided By University of Almeria

  • White Papers // Jan 2014

    Formalizing SANE Virtual Processor in Thread Algebra

    SANE Virtual Processor (SVP) is an abstract definition of the micro threaded model that has evolved over the last decade from a low-level machine model to a high-level programming model to support dynamic concurrency and communication in self-adaptive systems. This model is a basis for designing and programming chip multiprocessors...

    Provided By University of Almeria

  • White Papers // Jan 2014

    Thread Algebra for SANE Virtual Processors

    In this paper, the authors present a formal approach to the verification and evaluation of a programming/machine model being developed at the University of Amsterdam, called the SANE Virtual Processor (SVP). The model is being used as a basis for designing and programming chip multiprocessors and to support self-adaptive computation....

    Provided By University of Almeria

  • White Papers // Jan 2014

    Feasability of Combined Area and Performance Optimization for Superscalar Processors Using Searching

    When designing embedded systems, one needs to make decisions concerning the different components that will be included in a microprocessor. An important issue is the chip area vs. performance trade-off. In this paper, the authors investigate the relationship between chip area and performance for superscalar microprocessors. They investigate the feasibility...

    Provided By University of Almeria

  • White Papers // Dec 2013

    An Empirical Study of Intel Xeon Phi

    With at least 50 cores, Intel Xeon Phi is a true manycore architecture. Featuring fairly powerful cores, two cache levels, and very fast interconnections, the Xeon Phi can get a theoretical peak of 1000 GFLOPs and over 240 GB/s. These numbers, as well as its flexibility - it can be...

    Provided By University of Almeria

  • White Papers // Nov 2013

    Mutual Learning for Knowledge Co-Creation About Disability Inclusive Development: Experiences With a Community of Practice

    To deal with world-wide problems in development, actors need to co-create new knowledge. This paper can be done through mutual reflection on underlying values and assumptions and by combining the knowledge of different actors from society and academia. This paper shows how knowledge co-creation can be facilitated with attention to...

    Provided By University of Almeria

  • White Papers // Nov 2013

    Emulating Asymmetric MPSoCs on the Intel SCC Many-Core Processor

    The Single-chip Cloud Computer (SCC) is a 48-core experimental processor created by Intel Labs targeting the manycore research community. It has extensive frequency and voltage scaling support as well as on board power monitors. In this paper, the authors present a detailed study of the power properties of the SCC....

    Provided By University of Almeria

  • White Papers // Nov 2013

    On Many-Task Big Data Processing: from GPUs to Clouds

    Big data processing relies today on complex middleware stacks, comprised of high-level languages, programming models, execution engines, and storage engines. Among these, the execution engine is often built in-house, is tightly integrated or even monolithic, and makes coarse assumptions about the hardware. This limits how the future big data processing...

    Provided By University of Almeria

  • White Papers // Aug 2013

    An Iterative Multi-Application Mapping Algorithm for Heterogeneous MPSoCs

    Task mapping plays a crucial role in achieving high performance and energy savings in heterogeneous multiprocessor platforms. The problem of optimally mapping tasks onto a set of given heterogeneous processors for maximal throughput/minimal overall energy consumption has been known, in general, to be NP-complete. This problem is exacerbated when mapping...

    Provided By University of Almeria

  • White Papers // Aug 2013

    Black Holes Vs. Firewalls and Thermo-field Dynamics

    In this paper, the authors examine the implications of the ongoing black holes vs. firewalls debate for the thermo-field dynamics of black holes by analyzing a CFT in a thermal state in the context of AdS/CFT. They argue that the thermo-field doubled copy of the thermal CFT should be thought...

    Provided By University of Almeria

  • White Papers // Apr 2013

    On the Formulation of Performant SPARQL Queries

    The combination of the flexibility of RDF and the expressiveness of SPARQL provides a powerful mechanism to model, integrate and query data. However, these properties also mean that it is nontrivial to write performant SPARQL queries. Indeed, it is quite easy to create queries that tax even the most optimized...

    Provided By University of Almeria

  • White Papers // Feb 2013

    Defending Against DNS Reflection Amplification Attacks

    In this paper, the authors find out if the proposed mechanisms to defend against a DNS amplification attack are effective. The decision is made to focus on Response Rate Limiting (RRL) and determine the effectiveness of this mechanism against current and future attacks. In order to determine the effectiveness of...

    Provided By University of Almeria

  • White Papers // Feb 2013

    MGSim - Simulation Tools for Multi-Core Processor Architectures

    MGSim is an open source discrete event simulator for on-chip hardware components, developed at the University of Amsterdam. It is intended to be a research and teaching vehicle to study the fine-grained hardware/software interactions on many-core and hardware multithreaded processors. It includes support for core models with different instruction sets,...

    Provided By University of Almeria

  • White Papers // Jan 2013

    Intercloud Architecture Framework for Heterogeneous Cloud Based Infrastructure Services Provisioning On-Demand

    Clouds are widely used by both industry and research community; clouds provide an affordable access to powerful computing facilities for open public. This paper presents on-going research to develop the Inter-Cloud Architecture Framework (ICAF) that addresses problems in multi-provider multi-domain heterogeneous cloud based infrastructure services and applications integration and interoperability,...

    Provided By University of Almeria

  • White Papers // Jan 2013

    Brief Historical Perspective for Virtual Organizations

    Emergence of the virtual enterprise/virtual organization paradigm falls within the natural sequence of the restructuring processes in traditional industrial paradigms that is enabled by advances in information and communication technologies. In parallel with the outsourcing tendency, another transformation observed in large companies is their reorganization as a \"Federation\" of relatively...

    Provided By University of Almeria

  • White Papers // Dec 2012

    A Framework for Automated Service Composition in Collaborative Networks

    This paper proposes a novel framework for automated software service composition that can significantly support and enhance collaboration among enterprises in service provision industry, such as in tourism insurance and e-commerce Collaborative Networks (CNs). Sharing/integration of software services in CNs, as well as interoperation among implemented software services in this...

    Provided By University of Almeria

  • White Papers // Nov 2012

    Building the Network Infrastructure for the International Mathematics Olympiad

    In this paper, the authors describe the network infrastructure they designed, built and operated for the International Mathematics Olympiad in the Netherlands in 2011. The infrastructure was pragmatically designed around OpenVPN tunnels in a star topology between the various venues. VLANs were extensively used to separate functional groups and networks....

    Provided By University of Almeria

  • White Papers // Oct 2012

    Big Data Challenges for e-Science Infrastructure

    In this paper, the authors discuss the challenges that are imposed by the Big Data Science on the modern and future Scientific Data Infrastructure (SDI). The paper refers to different scientific communities to define requirements on data management, access control and security. The paper introduces the Scientific Data Lifecycle Management...

    Provided By University of Almeria

  • White Papers // Oct 2012

    Intercloud Architecture for Interoperability and Integration

    In this paper, the authors present on-going research to develop the InterCloud Architecture Framework (ICAF) that addresses problems in multi-provider multi-domain heterogeneous cloud based infrastructure services and applications integration and interoperability. The paper refers to existing standards in Cloud Computing, in particular, recently published NIST Cloud Computing Reference Architecture (CCRA)....

    Provided By University of Almeria

  • White Papers // Oct 2012

    Addressing Big Data Challenges for Scientific Data Infrastructure

    This paper discusses the challenges that are imposed by Big Data Science on the modern and future Scientific Data Infrastructure (SDI). The paper refers to different scientific communities to define requirements on data management, access control and security. The paper introduces the Scientific Data Lifecycle Management (SDLM) model that includes...

    Provided By University of Almeria

  • White Papers // Sep 2012

    From Functions to Object-Orientation by Abstraction

    In previous paper, the authors developed a framework of computational models for functions and object execution. The models on a higher level of abstraction in this framework allow for concurrent execution of functions and objects. They show that the computational model for object execution complies with the fundamentals of object-orientation....

    Provided By University of Almeria

  • White Papers // Sep 2012

    Towards Energy Efficient Data Intensive Computing Using IEEE 802.3az

    Energy efficiency is an increasingly important requirement for computing and communication systems, especially with their increasing pervasiveness. The IEEE 802.3az protocol reduces the network energy consumption by turning active copper Ethernet links to a low power model when no traffic exists. However, the effect of 802.3az heavily depends on the...

    Provided By University of Almeria

  • White Papers // Aug 2012

    Online Tracking: Questioning the Power of Informed Consent

    The paper aims to report the main findings of a paper for the Dutch Regulatory authority for the telecommunications sector OPTA to explore how the new European ''Cookie rules'' in the e-privacy directive impact on behavioral advertising practices via the storing and reading of cookies. The paper identifies the main...

    Provided By University of Almeria

  • White Papers // Aug 2012

    Toward a Dynamic Trust Establishment Approach for Multi-Provider Intercloud Environment

    In Cloud computing, the data are not only managed by the data owner but also by Cloud providers. Sophisticated Clouds collaboration scenarios require that these data objects can be accessed distributively among Cloud providers, while still being under the control of data owners. It brings security challenges for distributed authorization...

    Provided By University of Almeria

  • White Papers // May 2012

    Defining Inter-Cloud Architecture for Interoperability and Integration

    This paper presents an on-going research to develop the Inter-Cloud Architecture, which addresses the architectural problems in multi-provider multi-domain heterogeneous cloud based applications integration and interoperability, including integration and interoperability with legacy infrastructure services. Cloud technologies are evolving into a common way to virtualize infrastructure services and to offer on-demand...

    Provided By University of Almeria

  • White Papers // Mar 2012

    Distributed S-Net: Cluster and Grid Computing without the Hassle

    S-NET is a declarative coordination language and component technology primarily aimed at modern multi-core/ many-core chip architectures. It builds on the concept of stream processing to structure dynamically evolving networks of communicating asynchronous components. Components themselves are implemented using a conventional language suitable for the application domain. The authors present...

    Provided By University of Almeria

  • White Papers // Jan 2012

    Fast Scenario-Based Design Space Exploration Using Feature Selection

    In this paper, the authors present a novel approach to efficiently perform early system level Design Space Exploration (DSE) of Multi-Processor System-on-Chip (MPSoC) based embedded systems. By modeling dynamic multi-application workloads using application scenarios, optimal designs can be quickly identified using a combination of a scenario-based DSE and a feature...

    Provided By University of Almeria

  • White Papers // Oct 2011

    Collaborative Networks in Support of Service-Enhanced Products

    The development and support of highly customized and service-enhanced products requires new organizational structures, involving the manufacturers, customers and local suppliers in a process of co-creation. This requires the implementation of the glocal enterprise notion with value creation from global networked operations and involving global supply chain management, product-service linkage,...

    Provided By University of Almeria

  • White Papers // May 2011

    Position-Based Quantum Cryptography: Impossibility and Constructions

    The aim of position-based cryptography is to use the geographical position of a party as its only credential. In this paper, the authors study position-based cryptography in the quantum setting. They show that if collaborating adversaries are allowed to pre-share an arbitrarily large entangled quantum state, then position-verification, and as...

    Provided By University of Almeria

  • White Papers // May 2011

    Energy Efficiency Considerations in Integrated IT and Optical Network Resilient Infrastructures

    The European Integrated Project GEYSERS - GEneralised Architecture for DYnamic Infrastructure SERvices - is concentrating on infrastructures incorporating integrated optical network and IT resources in support of the Future Internet with special emphasis on cloud computing. More specifically GEYSERS proposes the concept of Virtual Infrastructures over one or more interconnected...

    Provided By University of Almeria

  • White Papers // Apr 2011

    Extending and Implementing the Self-Adaptive Virtual Processor for Distributed Memory Architectures

    Many-core architectures of the future are likely to have distributed memory organizations and need fine grained concurrency management to be used effectively. The Self-adaptive Virtual Processor (SVP) is an abstract concurrent programming model which can provide this, but the model and its current implementations assume a single address space shared...

    Provided By University of Almeria

  • White Papers // Apr 2011

    Entrepreneurship and Role Models

    In the media role models are increasingly being acknowledged as an influential factor in explaining the reasons for the choice of occupation and career. Various conceptual studies have proposed links between role models and entrepreneurial intentions. However, empirical research aimed at establishing the importance of role models for (nascent) entrepreneurs...

    Provided By University of Almeria

  • White Papers // Mar 2011

    On-Demand Provisioning of Cloud and Grid Based Infrastructure Services for Collaborative Projects and Groups

    Effective use of existing network and IT infrastructure can be achieved by providing combined network and IT resources on-demand as infrastructure services that are capable of supporting complex technological processes, scientific experiments, and collaborative groups of researchers and applications. This paper provides a short overview of existing standards and technologies...

    Provided By University of Almeria

  • White Papers // Mar 2011

    Access Control Infrastructure for On-Demand Provisioned Virtualised Infrastructure Services

    Cloud technologies are emerging as a new way of provisioning virtualised computing and infrastructure services on-demand for collaborative projects and groups. Security in provisioning virtual infrastructure services should address two general aspects: supporting secure operation of the provisioning infrastructure, and provisioning a dynamic access control infrastructure as part of the...

    Provided By University of Almeria

  • White Papers // Feb 2011

    Defining Generic Architecture for Cloud Iaas Provisioning Model

    Infrastructure as a Service (IaaS) is one of the provisioning models for Clouds as defined in the NIST Clouds definition. Although widely used, current IaaS implementations and solutions doesn't have common and well defined architecture model. The paper attempts to define a generic architecture for IaaS based on current research...

    Provided By University of Almeria

  • White Papers // Jan 2011

    Techniques and Visualization Approaches for Analyzing Local and Global Pareto Optimal Sets in Multi-Objective Design Space Exploration

    VMODEX is an interactive visualization tool to support system-level Design Space Exploration (DSE) of MPSoC architectures. It provides insight into the search process of Multi-Objective Evolutionary Algorithms (MOEAs) that are typically used in the DSE process, and it facilitates the analysis of the DSE results. In this paper, the authors...

    Provided By University of Almeria

  • White Papers // Nov 2010

    An Interactive Visualization Tool for the Analysis of Multi-Objective Embedded Systems Design Space Exploration

    The design of today's embedded systems involves a complex Design Space Exploration (DSE) process. Typically, multiple and conflicting criteria (objectives) should be optimized simultaneously such as performance, power, cost, etc. Usually, Multi-Objective Evolutionary Algorithms (MOEAs) are used to explore a large design space with a finite number of design point...

    Provided By University of Almeria

  • White Papers // Oct 2010

    Security Services Lifecycle Management in On-Demand Infrastructure Services Provisioning

    Modern e-Science and high technology industry require high-performance and complicated network and computer infrastructure to support distributed collaborating groups of researchers and applications that should be provisioned on-demand. The effective use and management of the dynamically provisioned services can be achieved by using the Service Delivery Framework (SDF) proposed by...

    Provided By University of Almeria

  • White Papers // Sep 2010

    VMODEX: A Visualization Tool for Multi-Objective Design Space Exploration

    Modern embedded and reconfigurable systems come with contradictory design constraints. On one hand, these systems often target mass production and battery-based devices, and therefore should be cheap and power efficient. VMODEX is an interactive visualization tool to support system-level Design Space Exploration (DSE). It provides insight into the search process...

    Provided By University of Almeria

  • White Papers // Sep 2010

    NASA: A Generic Infrastructure for System-level MP-SoC Design Space Exploration

    System-level simulation and Design Space Exploration (DSE) are key ingredients for the design of Multi-Processor System-on-Chip (MPSoC) based embedded systems. The efforts in this area, however, typically use ad-hoc software infrastructures to facilitate and support the system-level DSE experiments. In this paper, the authors present a new, generic system-level MP-SoC...

    Provided By University of Almeria

  • White Papers // Mar 2011

    On-Demand Provisioning of Cloud and Grid Based Infrastructure Services for Collaborative Projects and Groups

    Effective use of existing network and IT infrastructure can be achieved by providing combined network and IT resources on-demand as infrastructure services that are capable of supporting complex technological processes, scientific experiments, and collaborative groups of researchers and applications. This paper provides a short overview of existing standards and technologies...

    Provided By University of Almeria

  • White Papers // Mar 2011

    Access Control Infrastructure for On-Demand Provisioned Virtualised Infrastructure Services

    Cloud technologies are emerging as a new way of provisioning virtualised computing and infrastructure services on-demand for collaborative projects and groups. Security in provisioning virtual infrastructure services should address two general aspects: supporting secure operation of the provisioning infrastructure, and provisioning a dynamic access control infrastructure as part of the...

    Provided By University of Almeria

  • White Papers // May 2012

    Defining Inter-Cloud Architecture for Interoperability and Integration

    This paper presents an on-going research to develop the Inter-Cloud Architecture, which addresses the architectural problems in multi-provider multi-domain heterogeneous cloud based applications integration and interoperability, including integration and interoperability with legacy infrastructure services. Cloud technologies are evolving into a common way to virtualize infrastructure services and to offer on-demand...

    Provided By University of Almeria

  • White Papers // Sep 2012

    From Functions to Object-Orientation by Abstraction

    In previous paper, the authors developed a framework of computational models for functions and object execution. The models on a higher level of abstraction in this framework allow for concurrent execution of functions and objects. They show that the computational model for object execution complies with the fundamentals of object-orientation....

    Provided By University of Almeria

  • White Papers // Jan 2009

    Dynamic Security Context Management in Grid-Based Applications

    This paper summarizes ongoing research and recent results on the development of flexible access control infrastructure for complex resource provisioning in Grid-based collaborative applications and on-demand network services provisioning. The paper analyses the general access control model for Grid based applications and discusses what mechanisms can be used for expressing...

    Provided By University of Almeria

  • White Papers // Sep 2008

    Authorisation Infrastructure for On-Demand Network Resource Provisioning

    High performance Grid applications require high speed network infrastructure that should be capable to provide network connectivity service on-demand. This paper presents results of the development of the AuthoriZation (AuthZ) infrastructure for on-demand multi-domain Network Resource Provisioning (NRP). The authors propose a general Complex Resource Provisioning (CRP) model that can...

    Provided By University of Almeria

  • White Papers // Oct 2008

    Extending XACML Authorisation Model to Support Policy Obligations Handling in Distributed Application

    The paper summarizes the recent developments and discussions in the Grid and networking security community to build interoperable and scalable authorisation infrastructure for distributed applications. The paper provides a short overview of the XACML policy format and policy obligations definition in the XACML specification. The paper analyses the basic use...

    Provided By University of Almeria

  • White Papers // Oct 2008

    Re-Thinking Grid Security Architecture

    The security models used in Grid systems today strongly bear the marks of their diverse origin. Historically retrofitted to the distributed systems they are designed to protect and control, the security model is usually limited in scope and applicability, and its implementation tailored towards a few specific deployment scenarios. A...

    Provided By University of Almeria

  • White Papers // Mar 2009

    Authorisation Session Management in On-Demand Resource Provisioning in Collaborative Applications

    Effective use of the resources in modern collaborative environment suggests their sharing between collaborating organisations and user groups and on-demand provisioning for the specific tasks and projects that may involve distributed resources and users from different administrative and security domains. The proposed in earlier authors' work the general Complex Resource...

    Provided By University of Almeria

  • White Papers // May 2009

    XACML Policy Profile for Multidomain Network Resource Provisioning and Supporting Authorisation Infrastructure

    Policy definition is an important component of the consistent authorisation service infrastructure that could be effectively integrated with the general resource provisioning workflow and network control and management plane. The paper describes the proposed XACML-NRP policy and attributes profile for Network Resource Provisioning. In addition to specifying a set of...

    Provided By University of Almeria

  • White Papers // Jul 2009

    Authorisation Infrastructure for On-Demand Grid and Network Resource Provisioning

    The paper presents the Authorisation (AuthZ) infrastructure for combined multi-domain on-demand Grid and network resource provisioning which the authors refer to as the Complex Resource Provisioning (CRP). The proposed CRP model provides a common abstraction of the resource provisioning process and is used as a basis for defining the major...

    Provided By University of Almeria

  • White Papers // Aug 2010

    Extending AAA Operational Model for Profile-Based Access Control in Ethernet-Based Neutral Access Networks

    Neutral Access Networks (NAN) have appeared as a new model to overcome some restrictions and lack of flexibility that are present currently in broadband access networks. NAN brings new business opportunities by opening this market to new stakeholders. Although the NAN model is accepted, there are some technical issues that...

    Provided By University of Almeria

  • White Papers // Oct 2010

    Security Services Lifecycle Management in On-Demand Infrastructure Services Provisioning

    Modern e-Science and high technology industry require high-performance and complicated network and computer infrastructure to support distributed collaborating groups of researchers and applications that should be provisioned on-demand. The effective use and management of the dynamically provisioned services can be achieved by using the Service Delivery Framework (SDF) proposed by...

    Provided By University of Almeria

  • White Papers // Feb 2011

    Defining Generic Architecture for Cloud Iaas Provisioning Model

    Infrastructure as a Service (IaaS) is one of the provisioning models for Clouds as defined in the NIST Clouds definition. Although widely used, current IaaS implementations and solutions doesn't have common and well defined architecture model. The paper attempts to define a generic architecture for IaaS based on current research...

    Provided By University of Almeria

  • White Papers // Nov 2013

    On Many-Task Big Data Processing: from GPUs to Clouds

    Big data processing relies today on complex middleware stacks, comprised of high-level languages, programming models, execution engines, and storage engines. Among these, the execution engine is often built in-house, is tightly integrated or even monolithic, and makes coarse assumptions about the hardware. This limits how the future big data processing...

    Provided By University of Almeria

  • White Papers // Jan 2014

    The Verification of the On-Chip COMA Cache Coherence Protocol

    In this paper, the authors give a correctness proof for the on-chip COMA cache coherence protocol that supports the Microgrid of micro-threaded architecture, a multi-core architecture capable of integrating hundreds to hundreds of thousands of processors on single silicon chip. They use the Abstract State Machine (ASM) as a theoretical...

    Provided By University of Almeria

  • White Papers // Dec 2008

    Evaluating CMPs and Their Memory Architecture

    Many-core processor architectures require scalable solutions that reflect the locality and power constraints of future generations of technology. This paper presents a CMP architecture that supports automatic mapping and dynamic scheduling of threads leaving the binary code devoid of any explicit communication. The thrust of this approach is to produce...

    Provided By University of Almeria

  • White Papers // Jan 2006

    Scalable and Partitionable Asynchronous Arbiter for Micro-Threaded Chip Multiprocessors

    In this paper, the authors present a scalable and partitionable asynchronous bus arbiter for use with Chip Multi-Processors (CMP) and its corresponding pre-layout simulation results using VHDL. The arbiter exploits the advantage of a concurrency control instruction (Brk) provided by the micro-threaded microprocessor model to set the priority processor and...

    Provided By University of Almeria

  • White Papers // Nov 2009

    Evaluation of a Hardware Implementation of the SVP Concurrency Model

    SVP is a general concurrency model that has been implemented in the ISA of a multi-threaded core, both of which support data flow synchronization with imperative programming. This core is used as a building block to design System-on-Chips (SoCs) comprising many cores, either for general-purpose use or for specific applications....

    Provided By University of Almeria

  • White Papers // Mar 2008

    Operating Systems in Silicon and the Dynamic Management of Resources in Many-Core Chips

    In this paper, the authors explore the problems of operating systems support when implementing concurrency controls at the level of the instruction set in processors designed for multi- and manycore chips. It introduces the SVP model and its implementation in DRISC processors to a level of detail required to understand...

    Provided By University of Almeria

  • White Papers // Jan 2014

    Formalizing SANE Virtual Processor in Thread Algebra

    SANE Virtual Processor (SVP) is an abstract definition of the micro threaded model that has evolved over the last decade from a low-level machine model to a high-level programming model to support dynamic concurrency and communication in self-adaptive systems. This model is a basis for designing and programming chip multiprocessors...

    Provided By University of Almeria

  • White Papers // Jan 2014

    Thread Algebra for SANE Virtual Processors

    In this paper, the authors present a formal approach to the verification and evaluation of a programming/machine model being developed at the University of Amsterdam, called the SANE Virtual Processor (SVP). The model is being used as a basis for designing and programming chip multiprocessors and to support self-adaptive computation....

    Provided By University of Almeria

  • White Papers // Aug 2007

    On-Chip COMA Cache-Coherence Protocol for Microgrids of Microthreaded Cores

    In this paper, the authors describe an on-chip COMA cache coherency protocol to support the microthread model of concurrent program composition. The model gives a sound basis for building multi-core computers as it captures concurrency, abstracts communication and identifies resources, such as processor groups explicitly and where mapping and scheduling...

    Provided By University of Almeria

  • White Papers // Nov 2013

    Mutual Learning for Knowledge Co-Creation About Disability Inclusive Development: Experiences With a Community of Practice

    To deal with world-wide problems in development, actors need to co-create new knowledge. This paper can be done through mutual reflection on underlying values and assumptions and by combining the knowledge of different actors from society and academia. This paper shows how knowledge co-creation can be facilitated with attention to...

    Provided By University of Almeria

  • White Papers // Oct 2009

    Signature-Based Calibration of Analytical Performance Models for System-Level Design Space Exploration

    The Sesame system-level simulation framework targets efficient design space exploration of embedded multimedia systems. Even despite Sesame's high efficiency, it would still fail to explore large parts of the design space simply because system-level simulation is too slow for this. Therefore, Sesame uses analytical performance models to provide steering to...

    Provided By University of Almeria

  • White Papers // Nov 2013

    Emulating Asymmetric MPSoCs on the Intel SCC Many-Core Processor

    The Single-chip Cloud Computer (SCC) is a 48-core experimental processor created by Intel Labs targeting the manycore research community. It has extensive frequency and voltage scaling support as well as on board power monitors. In this paper, the authors present a detailed study of the power properties of the SCC....

    Provided By University of Almeria

  • White Papers // Aug 2013

    An Iterative Multi-Application Mapping Algorithm for Heterogeneous MPSoCs

    Task mapping plays a crucial role in achieving high performance and energy savings in heterogeneous multiprocessor platforms. The problem of optimally mapping tasks onto a set of given heterogeneous processors for maximal throughput/minimal overall energy consumption has been known, in general, to be NP-complete. This problem is exacerbated when mapping...

    Provided By University of Almeria

  • White Papers // Jan 2012

    Fast Scenario-Based Design Space Exploration Using Feature Selection

    In this paper, the authors present a novel approach to efficiently perform early system level Design Space Exploration (DSE) of Multi-Processor System-on-Chip (MPSoC) based embedded systems. By modeling dynamic multi-application workloads using application scenarios, optimal designs can be quickly identified using a combination of a scenario-based DSE and a feature...

    Provided By University of Almeria

  • White Papers // Jan 2011

    Techniques and Visualization Approaches for Analyzing Local and Global Pareto Optimal Sets in Multi-Objective Design Space Exploration

    VMODEX is an interactive visualization tool to support system-level Design Space Exploration (DSE) of MPSoC architectures. It provides insight into the search process of Multi-Objective Evolutionary Algorithms (MOEAs) that are typically used in the DSE process, and it facilitates the analysis of the DSE results. In this paper, the authors...

    Provided By University of Almeria

  • White Papers // Nov 2010

    An Interactive Visualization Tool for the Analysis of Multi-Objective Embedded Systems Design Space Exploration

    The design of today's embedded systems involves a complex Design Space Exploration (DSE) process. Typically, multiple and conflicting criteria (objectives) should be optimized simultaneously such as performance, power, cost, etc. Usually, Multi-Objective Evolutionary Algorithms (MOEAs) are used to explore a large design space with a finite number of design point...

    Provided By University of Almeria

  • White Papers // Sep 2010

    VMODEX: A Visualization Tool for Multi-Objective Design Space Exploration

    Modern embedded and reconfigurable systems come with contradictory design constraints. On one hand, these systems often target mass production and battery-based devices, and therefore should be cheap and power efficient. VMODEX is an interactive visualization tool to support system-level Design Space Exploration (DSE). It provides insight into the search process...

    Provided By University of Almeria

  • White Papers // Sep 2010

    NASA: A Generic Infrastructure for System-level MP-SoC Design Space Exploration

    System-level simulation and Design Space Exploration (DSE) are key ingredients for the design of Multi-Processor System-on-Chip (MPSoC) based embedded systems. The efforts in this area, however, typically use ad-hoc software infrastructures to facilitate and support the system-level DSE experiments. In this paper, the authors present a new, generic system-level MP-SoC...

    Provided By University of Almeria

  • White Papers // Aug 2010

    Scenario-Based Design Space Exploration of MPSoCs

    Early Design Space Exploration (DSE) is a key ingredient in system-level design of MPSoC-based embedded systems. The state of the art in this field typically still explores systems under a single, fixed application workload. In reality, however, the applications are concurrently executing and contending for system resources in such systems....

    Provided By University of Almeria

  • White Papers // May 2010

    Visualization of Multi-Objective Design Space Exploration for Embedded Systems

    Modern embedded systems come with contradictory design constraints. On one hand, these systems often target mass production and battery-based devices, and therefore should be cheap and power efficient. On the other hand, they need to achieve high (real-time) performance. This wide spectrum of design requirements leads to complex heterogeneous System-on-Chip...

    Provided By University of Almeria

  • White Papers // Sep 2009

    System-level MP-SoC Design Space Exploration Using Tree Visualization

    The complexity of today's embedded systems forces designers to model and simulate systems and their components to explore the wide range of design choices. Such design space exploration is especially needed during the early design stages, where the design space is at its largest. Due to the exponential design space...

    Provided By University of Almeria

  • White Papers // Aug 2007

    Signature-Based Microprocessor Power Modeling for Rapid System-Level Design Space Exploration

    In this paper, the authors present a technique for high-level power estimation of microprocessors. The technique, which is based on abstract execution profiles called 'Event signatures', operates at a higher level of abstraction than commonly-used instruction-level power simulators and should thus be capable of achieving good evaluation performance. They have...

    Provided By University of Almeria

  • White Papers // Jan 2007

    Evaluating the Design of Biological Cells Using a Computer Workbench

    For embedded systems as well as for biological cell systems, design is a feature that defines their identity. The assembly of different components in designs of both systems can vary widely. Given the similarities between computers and cellular systems, methods and models of computation from the domain of computer systems...

    Provided By University of Almeria

  • White Papers // Sep 2006

    A Mixed-Level Co-Simulation Method for System-Level Design Space Exploration

    The Sesame modeling and simulation framework aims at efficient system-level design space exploration of embedded multimedia systems. A primary objective of Sesame is the exploration at multiple levels of abstraction. As such, it targets gradual refinement of its (initially abstract) architecture performance models while maintaining architecture-independent application specifications. In this...

    Provided By University of Almeria

  • White Papers // Dec 2013

    An Empirical Study of Intel Xeon Phi

    With at least 50 cores, Intel Xeon Phi is a true manycore architecture. Featuring fairly powerful cores, two cache levels, and very fast interconnections, the Xeon Phi can get a theoretical peak of 1000 GFLOPs and over 240 GB/s. These numbers, as well as its flexibility - it can be...

    Provided By University of Almeria

  • White Papers // Jan 2014

    Feasability of Combined Area and Performance Optimization for Superscalar Processors Using Searching

    When designing embedded systems, one needs to make decisions concerning the different components that will be included in a microprocessor. An important issue is the chip area vs. performance trade-off. In this paper, the authors investigate the relationship between chip area and performance for superscalar microprocessors. They investigate the feasibility...

    Provided By University of Almeria