Replica management in real-time Ada 95 applications

In this paper, we present some of the fault tolerance management mechanisms being implemented in the Multi-μ architecture, namely its support for replica non-determinism. In this architecture, fault tolerance is achieved by node active replication, with software based replica management and fault tolerance transparent algorithms. A software layer implemented between the application and the real-time kernel, the Fault Tolerance Manager (FTManager), is the responsible for the transparent incorporation of the fault tolerance mechanisms The active replication model can be implemented either imposing replica determinism or keeping replica consistency at critical points, by means of interactive agreement mechanisms. One of the Multi-μ architecture goals is to identify such critical points, relieving the underlying system from performing the interactive agreement in every Ada dispatching point.

Multi-μ: an Ada 95 based architecture for fault tolerance support of real-time systems

This paper presents an architecture (Multi-μ) being implemented to study and develop software based fault tolerant mechanisms for Real-Time Systems, using the Ada language (Ada 95) and Commercial Off-The-Shelf (COTS) components. Several issues regarding fault tolerance are presented and mechanisms to achieve fault tolerance by software active replication in Ada 95 are discussed. The Multi-μ architecture, based on a specifically proposed Fault Tolerance Manager (FTManager), is then described. Finally, some considerations are made about the work being done and essential future developments.

A parallel programming model for ada

Over the last three decades, computer architects have been able to achieve an increase in performance for single processors by, e.g., increasing clock speed, introducing cache memories and using instruction level parallelism. However, because of power consumption and heat dissipation constraints, this trend is going to cease. In recent times, hardware engineers have instead moved to new chip architectures with multiple processor cores on a single chip. With multi-core processors, applications can complete more total work than with one core alone. To take advantage of multi-core processors, parallel programming models are proposed as promising solutions for more effectively using multi-core processors. This paper discusses some of the existent models and frameworks for parallel programming, leading to outline a draft parallel programming model for Ada.

N’A Barraca com Maria do Céu Guerra em Dona Maria, a louca, de António Cunha: relatório de estágio

Relatório de Estágio submetido à Escola Superior de Teatro e Cinema para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Teatro - especialização em Artes Performativas - Interpretação.

Maria da Cunha Zorro

Poetisa, Maria da Cunha Zorro é frequentemente conhecida como Maria da Cunha. É assim, aliás, que assina os textos que editam as suas composições poéticas e as traduções. Nasce em Lisboa e com nacionalidade portuguesa, ao contrário de seus pais, mãe brasileira e pai espanhol, Francisco Zorro. Considerada muito culta, atendendo sobretudo ao nulo ou baixo nível educacional da esmagadora maioria das mulheres portuguesas, no início do século XX, edita o seu primeiro livro de poesia, Trindades, em 1909.

Estudio comparativo de las técnicas de PCR y ADA en derrame pleural de pacientes presuntivos de tuberculosis.

Tesis (Maestría en Ciencias con Acentuación en Microbiología) UANL, 2012.

Inglés II : conceptos gramaticales básicos para la comprensión de lecturas Aída O'Ward R.

UANL

Diabetes mellitus gestacional : comparación de la validez de los criterios diagnósticos de las pruebas ADA y OMS con base al estándar de referencia NDDG

Tesis (Doctorado en Medicina) UANL

La Ca??ada Real Segoviana a su paso por Madrid

Se trata de un conjunto de estudios de diversa ??ndole sobre la Ca??ada Real Segoviana a su paso por la provincia de Madrid desde varios puntos de vista: tur??stico y relacionados con el medio ambiente natural y humano..

La Ca??ada Leonesa

Gu??a que pretende animar al conocimiento de las ca??adas. Propone un itinerario que parte de la Sierra de Guadarrama y llega hasta Talavera de la Reina. Hace una introducci??n hist??rica y describe brevemente el medio natural..

Los juegos en La Il??ada y en La Eneida

Se hace un estudio comparativo y una descripci??n de las competiciones atl??ticas que aparecen en las obras de Homero y Virgilio, la Il??ada y la Eneida, respectivamente. En la Eneida, Virgilio adopta muchos elementos hom??ricos, sin embargo, los adopta a rasgos y aspectos propios de su ??poca.

Aprendendo xuntos : o papel da familia e os diversos profesionais na atenci??n ?? persoa cunha discapacidade. 'Aprendiendo juntos : el papel de la familia y los diversos profesionales en la atenci??n a la persona con una discapacidad'

Resumen basado en el del autor