際際滷s used for my Bachelor Degree presentation: the main focus is on SARP, a semi-active replication protocol that I developed and tested for my thsis work.
This document describes a software platform to support dynamic partial reconfiguration on systems-on-chip running Linux. It aims to provide software support for managing the partial reconfiguration process from the operating system, and automatically loading and unloading device drivers for reconfigurable components. The hardware architecture uses a PowerPC processor, memory, and an ICAP connected to reconfigurable modules. The software architecture introduces a kernel module for the ICAP and an IP-Core Manager to handle reconfiguration flows and driver management.
The Rout Of The Trans Atlantic Salve Tradedante1130
油
These pictures depict the conditions that the African Slaves had to go through to get to the coast and the nonce they were at the coast, it shows the conditions that they went through on the boats. Also there is a map with the slaves destionations and how many were sent there. The slide with the Kingdoms Africa shows where the slaves came from.
Un padre y su hija entran en una jugueter鱈a para comprar una Barbie. La dependienta muestra varias Barbies a diferentes precios, excepto una Barbie divorciada que cuesta 500 euros. Cuando el padre pregunta por qu辿 cuesta m叩s, la dependienta responde que la Barbie divorciada viene con todos los bienes y pertenencias de Ken.
The document presents a thesis defense on task scheduling for partially dynamically reconfigurable devices. It defines the scheduling problem, proposes an ILP formulation and a heuristic scheduler called Napoleon to solve the problem. Experimental results show that on average, Napoleon obtains 18.6% better schedule length than other algorithms. Future work includes integrating Napoleon into a scheduling framework and testing new anti-fragmentation techniques.
The document proposes an approach for identifying core designs for reconfigurable systems driven by specification self-similarity. It involves partitioning a specification's data flow graph (DFG) to identify recurrent subgraphs that can be implemented as reusable configurable modules. This is done through two phases: template identification to produce equivalence classes of isomorphic subgraphs, and graph covering to select templates for implementation. The approach was tested on real-world benchmarks, demonstrating coverage of 70-90% and runtimes of seconds to minutes. Future work includes refining template selection and online scheduling of reconfigurable cores.
The document discusses the Earth's radiation balance and how human activity is impacting it through increased greenhouse gas emissions, leading to global warming. It explains that the Earth maintains a temperature balance through absorbing and emitting radiation. Increased greenhouse gases like carbon dioxide and methane absorb more outgoing radiation, disrupting this balance and causing warming. It outlines various impacts of global warming like melting ice caps, more extreme weather, and discusses efforts to reduce emissions and mitigate further impacts.
際際滷s used for my Bachelor Degree presentation: the main focus is on SARP, a semi-active replication protocol that I developed and tested for my thsis work.
This document describes a software platform to support dynamic partial reconfiguration on systems-on-chip running Linux. It aims to provide software support for managing the partial reconfiguration process from the operating system, and automatically loading and unloading device drivers for reconfigurable components. The hardware architecture uses a PowerPC processor, memory, and an ICAP connected to reconfigurable modules. The software architecture introduces a kernel module for the ICAP and an IP-Core Manager to handle reconfiguration flows and driver management.
The Rout Of The Trans Atlantic Salve Tradedante1130
油
These pictures depict the conditions that the African Slaves had to go through to get to the coast and the nonce they were at the coast, it shows the conditions that they went through on the boats. Also there is a map with the slaves destionations and how many were sent there. The slide with the Kingdoms Africa shows where the slaves came from.
Un padre y su hija entran en una jugueter鱈a para comprar una Barbie. La dependienta muestra varias Barbies a diferentes precios, excepto una Barbie divorciada que cuesta 500 euros. Cuando el padre pregunta por qu辿 cuesta m叩s, la dependienta responde que la Barbie divorciada viene con todos los bienes y pertenencias de Ken.
The document presents a thesis defense on task scheduling for partially dynamically reconfigurable devices. It defines the scheduling problem, proposes an ILP formulation and a heuristic scheduler called Napoleon to solve the problem. Experimental results show that on average, Napoleon obtains 18.6% better schedule length than other algorithms. Future work includes integrating Napoleon into a scheduling framework and testing new anti-fragmentation techniques.
The document proposes an approach for identifying core designs for reconfigurable systems driven by specification self-similarity. It involves partitioning a specification's data flow graph (DFG) to identify recurrent subgraphs that can be implemented as reusable configurable modules. This is done through two phases: template identification to produce equivalence classes of isomorphic subgraphs, and graph covering to select templates for implementation. The approach was tested on real-world benchmarks, demonstrating coverage of 70-90% and runtimes of seconds to minutes. Future work includes refining template selection and online scheduling of reconfigurable cores.
The document discusses the Earth's radiation balance and how human activity is impacting it through increased greenhouse gas emissions, leading to global warming. It explains that the Earth maintains a temperature balance through absorbing and emitting radiation. Increased greenhouse gases like carbon dioxide and methane absorb more outgoing radiation, disrupting this balance and causing warming. It outlines various impacts of global warming like melting ice caps, more extreme weather, and discusses efforts to reduce emissions and mitigate further impacts.
Software Process in Software Engineering SE3koolkampus
油
The document introduces software process models and describes three generic models: waterfall, evolutionary development, and component-based development. It also covers the Rational Unified Process model and discusses how computer-aided software engineering (CASE) tools can support software development processes.
Software Requirements in Software Engineering SE5koolkampus
油
The document introduces software requirements and describes how they are used to define what a system should do. It explains that requirements can be functional or non-functional, and discusses how requirements are organized in documents. Requirements describe the services and constraints for the system from the perspectives of users and developers.
1) La mitolog鱈a griega est叩 formada por relatos orales cuya origen se remonta a una 辿poca anterior a la ocupaci坦n de Grecia, como demuestra su paralelismo con otras mitolog鱈as indoeuropeas. 2) Estos relatos reflejan las creencias de los antiguos griegos sobre el universo y el hombre pero no constituyen una religi坦n. 3) Hes鱈odo relata en su Teogon鱈a que el Caos fue el primer dios en surgir, seguido de Gea, T叩rtaro y Eros, estableciendo las deidades de los elementos
The document discusses the importance of social forecasting in strategic planning for corporations. It argues that while economic and technological forecasting are used, they often have large residual errors because social factors are not considered. It provides examples where social trends better explained outcomes than economic predictions. Specifically, it discusses how legalized abortion in the US in 1973 likely contributed to a subsequent decline in crime rates 20 years later. The document advocates supplementing economic/technological forecasts with consideration of social trends to improve accuracy and aid corporate strategic planning.
Software Prototyping in Software Engineering SE8koolkampus
油
Prototyping involves rapidly developing an initial version of a system to validate requirements and gain user feedback. There are two main approaches - evolutionary prototyping iteratively develops prototypes into the final system, while throw-away prototyping discards the prototype after validating requirements. Rapid prototyping techniques include using high-level languages, database programming, and component reuse to quickly develop prototypes for review before final development. User interface prototyping is especially important as interfaces cannot be fully specified upfront.
Socio Technical Systems in Software Engineering SE2koolkampus
油
Socio-technical systems refer to purposeful collections of interrelated components including software, hardware, and people working towards a common goal. Emergent properties are characteristics of the whole system rather than individual components, such as reliability. The systems engineering process involves defining requirements, designing subsystems, developing components in parallel, integrating them, and handling ongoing operations and evolution over the system's lifetime. Procurement involves specifying and selecting a system to purchase from potential contractors and subcontractors.
Configuration Management in Software Engineering - SE29koolkampus
油
This document discusses software configuration management (CM) and related topics. It defines CM as managing evolving software systems and controlling costs of system changes. Key CM activities include CM planning, change management, version management, and system building. CM aims to identify documents and components, track changes, and release new versions. Tools like CM databases and change tracking systems help manage the CM process.
Requirements Engineering Processes in Software Engineering SE6koolkampus
油
The document describes key requirements engineering processes including feasibility studies, requirements elicitation and analysis, requirements validation, and requirements management. It discusses techniques like elicitation from stakeholders, modeling system requirements, and validating requirements match customer needs. Scenarios and use cases are presented as ways to add detail to requirements descriptions.
System Models in Software Engineering SE7koolkampus
油
The document discusses various types of system models used in requirements engineering including context models, behavioral models, data models, object models, and how CASE workbenches support system modeling. It describes behavioral models like data flow diagrams and state machine models, data models like entity-relationship diagrams, and object models using the Unified Modeling Language. CASE tools can support modeling through features like diagram editors, repositories, and code generation.
Introduction to Software Engineering SE1koolkampus
油
This document introduces software engineering and discusses its importance, key topics, and professional and ethical responsibilities. It defines software engineering, compares it to computer science and system engineering, and explains software processes and models. It also covers frequently asked questions about software engineering, costs, methods, challenges, and a code of ethics for professional responsibility.
Distributed Systems Architecture in Software Engineering SE11koolkampus
油
Distributed systems architectures allow software to execute across multiple processors. Key approaches include client-server systems and distributed object architectures. Client-server divides an application into client and server components, while distributed object architectures treat all entities as objects that provide and consume services. Middleware like CORBA supports object communication and common services.
The document summarizes Kanban signals and the Kanban system. As a customer pulls an order, signals are sent through the production process to replenish parts. Signals move from finished goods to final assembly and then to suppliers. Advantages include providing precise information with low costs and quick response to changes while avoiding overproduction and waste.
Object Oriented Design in Software Engineering SE12koolkampus
油
The document discusses object-oriented design (OOD) and describes its key characteristics and processes. Specifically, it covers:
1) Objects communicate by message passing and are self-contained entities that encapsulate state and behavior.
2) The OOD process involves identifying objects and classes, defining their interfaces, relationships, and developing models of the system.
3) The Unified Modeling Language (UML) is used to describe OOD models including classes, objects, associations, and other relationships.
Project for the class "Advanced Operating System: we developed a tool for the analysis of Hadoop, DSTAT and HPROF log in order to estimate the performance of a cluster through graphs and warnings.
Used technologies: Java, R, Hadoop, Python, C
More info: http://www.sromano.altervista.org/progetti_magistrale/SOA_HadoopAnalyzerJR.pdf
Presentazione: uno studio sull'efficacia di checker automatici per la moderni...Idriss Riouak
油
Uno studio sull'efficacia del checker Clang Tidy in particolare sull'efficacia del modulo "modernize". Il test 竪 stato applicato sulla Parma Polyhedra Library.
Tightening the screws 竪 lo slogan che caratterizza questo nuovo rilascio di TYPO3 CMS. La versione 8.1 introduce aggiornamenti sull'interfaccia grafica del modulo workspace, la gestione dei database con Doctrine e molti altri miglioramenti.
Studio di una Architettura per un Sistema Distributivo ad Alta AffidabilitRoberto Peruzzo
油
Questo documento rappresenta il risultato di uno studio di algoritmi e architetture utili per implementare un sistema ad alta affidabilit`a e alte prestazioni.
Uno studio sull'efficacia di checker automatici per la modernizzazione di cod...Idriss Riouak
油
La continua evoluzione dei linguaggi di programmazione ha reso difficile mantenere i software aggiornati con le ultime convenzioni dettate dagli standard. Come ogni processo aziendale, la modernizzazione del software rappresenta un costo. Nasce cos狸 lesigenza davere strumenti che automatizzino tale processo.
Clang Tidy 竪 uno software scritto in C++. Il suo scopo 竪 quello di mettere a disposizione degli sviluppatori, un framework flessibile per diagnosticare e correggere i pi湛 comuni errori di programmazione e lutilizzo obsoleto
dei costrutti del linguaggio.
1. The document discusses Diopsis940, a microcontroller product from Atmel that features an ARM9 processor and floating point DSP for consumer applications.
2. It provides details on target applications including hands-free phones, high-end car audio, and sound processors. The microcontroller supports complex audio processing algorithms.
3. hArtes, an Atmel division, aims to reduce application development time through tools that streamline the process from conceptual design to implementation using their microcontroller products.
The document proposes a coarse-grain reconfigurable array (CGRA) for accelerating digital signal processing. The CGRA aims to provide an intermediate tradeoff between flexibility and performance compared to FPGAs and ASICs. It consists of an array of processing elements and distributed memory interconnected via programmable switches. Evaluation shows the CGRA achieves 4.8-8X speedup, 24-58% improved energy efficiency, and up to 40% reduced area compared to a Xilinx Virtex-4 FPGA for applications like color space conversion, FIR filtering, and DCT.
This document discusses Altera's FPGA strategy for reconfigurable hardware in industry applications. It defines reconfigurable hardware as an architecture that does not require on-the-fly timing analysis because product qualification is extensively done through temperature and cycle testing without hardware architecture changes. It then shows how programmable solutions have evolved from single CPU and DSP cores to multi-core processors and coarse-grained arrays with FPGAs moving to fine-grained, massively parallel arrays with embedded hard IP blocks. Future trends include challenges of scaling CPUs due to physical limits and the benefits of parallelism through hardware reconfiguration.
The document describes processes in VHDL. It defines a process as a concurrent statement that contains sequential logic. Processes run in parallel and can be conditioned by a sensitivity list or wait statement. Local variables retain their values between executions. It provides an example of a process with a sensitivity list and one with a wait statement. It also summarizes the general structure of a VHDL program and describes different types of process control including if-then-else, case statements, and decoders. Additional topics covered include flip-flops, counters, and finite state machines.
The document discusses requirements for enabling self-adaptivity at both the software and hardware levels. It proposes a layered model with controllers at the application, run-time environment, and hardware levels. A component-based approach is suggested to allow adaptations such as replacing or modifying components. Simulation results demonstrate how controllers at each level can coordinate to meet goals like high throughput while minimizing power usage. Reconfigurable computing platforms need to allow hardware components to be instantiated and interconnected to enable self-adaptation across software and hardware.
The document summarizes research on task scheduling techniques for dynamically reconfigurable systems. It presents (1) an integer linear programming model to formally define the scheduling problem, (2) the Napoleon heuristic scheduler to solve the problem in reasonable time based on the ILP model, and (3) experimental results validating that Napoleon obtains an average 18.6% better schedule length than other algorithms. Future work is outlined to integrate Napoleon into a general design framework and scheduling-aware partitioning flow.
The document summarizes key topics in reconfigurable computing, including motivations for reconfigurable systems, types of flexibility they provide, and challenges in reconfiguration. It discusses design flows to reduce complexity, maximizing reuse of reconfigurable modules to reduce latency, hiding reconfiguration times, and using relocation to further optimize schedules. Areas of reconfiguration and possible implementation scenarios involving relocation are illustrated.
The document discusses an approach for identifying cores for reconfigurable systems driven by specification self-similarity. It involves partitioning a specification graph into subsets of operations that can be mapped to reusable configurable modules. The approach identifies recurrent subgraphs in the specification that are good candidates for these cores. It works in two phases: first identifying isomorphic subgraph templates, and then selecting templates for implementation as reconfigurable modules based on metrics like largest size, most frequent usage, or minimizing communication. Experimental results on encryption benchmarks show the approach can cover a large portion of the specification with a small set of identified templates.
This document summarizes techniques for core allocation and relocation management in self-dynamically reconfigurable architectures. It introduces basic concepts like cores, IP cores, and reconfigurable regions. It then describes proposed 1D and 2D relocation solutions like BiRF and BiRF Square that allow runtime relocation with low overhead. A core allocation manager is introduced to choose core placements optimizing criteria like rejection rate and completion time with low management costs. Evaluation shows the techniques improve metrics like rejection rate and routing costs compared to other approaches.
The document discusses an hardware application platform developed for the hArtes project. It provides heterogeneous computing resources like DSPs, CPUs and FPGAs. Demonstrator applications focus on advanced audio processing for car infotainment and teleconferencing. The platform supports these applications by integrating different components, scaling computational power, and accommodating future additions. It also provides adequate I/O channels for audio signal processing.
The document describes the Janus system, an FPGA-based approach for simulating spin glass systems using Monte Carlo algorithms. The key aspects are:
1) Spin glass systems are computationally challenging to simulate due to the huge number of possible configurations.
2) The Janus system uses FPGAs to implement a large number of parallel update engines that can flip spins and accept/reject changes according to a Metropolis algorithm.
3) Each FPGA processor grid contains 4x4 processors that can communicate with neighbors. This allows simulations to be massively parallelized across the FPGA network.
The document outlines the agenda for the Reconfigurable Computing Italian Meeting held on December 19, 2008 at Politecnico di Milano in Milan, Italy. The agenda included four sessions on trends in reconfigurable computing, the hArtes European project, applicative scenarios, and the High Level Reconfiguration project. Each session included 3-4 presentations on technical topics within the session theme, such as FPGA strategies, multi-core signal processing, evolvable hardware, and runtime core relocation management. The meeting concluded with wishes for a merry Christmas and a happy new year.
This document provides an overview of architectural description languages (ADLs). It discusses that ADLs capture the structure and behavior of processor architectures to enable high-level modeling, analysis, and automatic prototype generation. ADLs can be classified as structural, behavioral, or mixed. Structural ADLs focus on low-level hardware details while behavioral ADLs model instruction sets for compiler generation. The document outlines different ADL types and their applications.
The document discusses design flows for partially reconfigurable systems on FPGAs. It provides an overview of Xilinx FPGA technology and configuration memory organization. It then summarizes several of Xilinx's design flows for partial reconfiguration (difference-based, module-based, EAPR). It outlines challenges with existing design flows and introduces the DRESD methodology and tools (INCA, Caronte) which aim to address these challenges by providing a more comprehensive framework for implementing dynamic reconfigurable embedded systems.
1. SyCERS: Un framework basato su SystemC per la progettazione e simulazione di sistemi embedded dinamicamente riconfigurabili Carlo AMICUCCI Matr. 642360 Relatore prof. Donatella SCIUTO Correlatore ing. Marco Domenico SANTAMBROGIO
2. Sommario Obiettivi Sistemi embedded dinamicamente riconfigurabili Transaction Level Modeling (TLM) e SystemC Riconfigurabilit dinamica e SystemC Modelli SystemC per Caronte Risultati sperimentali Sviluppi futuri
3. Obiettivi Definizione di un modello per descrivere sistemi dinamicamente riconfigurabili Basata su uno dei linguaggi di descrizione hardware esistenti Utilizzabile gi nelle prime fasi di progetto (permette di considerare la riconfigurabilit a livello di sistema) Fornire un framework per la simulazione e la progettazione di sistemi dinamicamente riconfigurabili Specifiche simulabili Possibilit di variare velocemente parametri quali: num. delle unit di riconf., tempo di riconfigurazione, ecc Possibilit di considerare la componente software
4. Sistemi embedded dinamicamente riconfigurabili Generalmente basati su FPGA Comunicazione BUS (Tecnologie standard quali AMBA o IBM CoreConnect) Connessione punto-punto Presenza di un controllore della riconfigurabilit (generalmente nella parte statica o esterno al dispositivo) che pu嘆 essere controllato: Hardware Software (maggiore flessibilit) Esempi: Caronte ADRIATIC e RECONF2
5. TLM e SystemC Separare la definizione delle funzionalit del sistema dalla definizione dei dettagli di comunicazione Attraverso la definizione di un Canale di comunicazione DEF.: un canale implementa una serie di interfacce che sono esposte ai componenti funzionali connessi attraverso di esso. DEF.: un interfaccia espone i metodi che possono essere invocati dal componente funzionale per comunicare. SystemC, dalla versione 2.0, permette di utilizzare la TLM: write() read() modulo A pA->write(v) modulo B v=pB->read() canale pA pB sc_interface sc_port
6. La metodologia proposta Specification Model Component Assembly Model Bus Functional Model Definire la funzionalit del sistema Non contiene dettagli sullimplementazione Esplorazione dello spazio delle soluzioni Dettagli implementativi sulle funzionalit Non contiene dettagli sulla comunicazione Validazione della soluzione attraverso la simulazione
7. Componente dinamicamente riconfigurabile in SystemC Non 竪 possibili istanziare in fase di simulazione un sc_module Posso modificare SC_THREAD e SC_METHOD utilizzando: puntatore a funzione sc_mutex Configurazione Associabile un tempo di ric. Elaborazione Associabile un tempo di elab. *g() Componente Riconfigurabile (sc_module) Configurazione (puntatore a funzione) mutex
8. Evoluzione di un componente riconfigurabile nel tempo *f() *g() *g() *g() Mem. delle Conf. f() g() k() Unlocked Locked Riconfig. Elab.
9. Comunicazione rec_ctrl_if utilizzata dal controllore delle riconfigurazioni per gestire i componenti riconfigurabili comm_if utilizzata da una configurazione per accedere alle risorse messe a disposizione dal componente riconfigurabile
10. Modelli per Caronte Codice di Controllo (SystemC) Compilatore GCC Configurazioni BlackBox (SystemC) Configurazioni Processo di controllo Scheduler e Controller Modello Memoria Cross compilatore GCC Codice di Controllo (C/C++) Component assembly model Bus arbitration model Modello Memoria BlackBoxes Modello CoreConnect PowerPC ISS Open SystemC PowerPC core models
11. Risultati sperimentali Filtro Adattativo (5 configurazioni) Elaborazione pipeline Acceleratore hw MD5 (4 configurazioni) Ver. 1 elaborazione monolitica Ver. 2 elaborazione pipeline DES (2 configurazioni) Riconfigurabilit e Sistemi di calcolo parallelo
12. Filtro Adattativo Component assembly model di Caronte Permette di vedere come variano le prestazioni del sistema in funzione Del numero BlackBox Tempo di riconfigurazione Politica di scheduling
13. Prestazioni del simulatore Il tempo di esecuzione reale dipende da: Risoluzione del tempo di simulazione Ottimizzazione in fase di compilazione (il tempo di elab. < 30 %) La memoria occupata dal modello 竪 di circa 150 KB per ogni BlackBox Aumentando il num. Di BlackBox aumenta il numero di thread, ma le prestazioni non degradano
14. Risultati e sviluppi futuri Generazione automatica di specifiche riconfigurabili da specifiche statiche. Introduzione di metriche per la stima delloccupazione Estensione del simulatore al modello DORM (Data Oriented Reconfigurable Model). In questo modello la funzionalit necessaria a manipolare i dati 竪 definita nel dato stesso. Utilizzo dei risultati di simulazione per la stima automatica del numero di iterazioni necessarie al mascheramento delle operazioni di riconfigurazione. C. Amicucci, F. Ferrandi, M.Santambrogio, D. Sciuto. SyCERS: a SystemC design exploration framework for SoC reconfigurable architecture, In Engineering of Reconfigurable System and Algorithms Conference ( ERSA 06 ), Las Vegas, Nevada, USA, Giugno 26-29 2006