Identification of logically related heap regions

This paper introduces a novel technique for identifying logically related sections of the heap such as recursive data structures, objects that are part of the same multi-component structure, and related groups of objects stored in the same collection/array. When combined withthe lifetime properties of these structures, this information can be used to drive a range of program optimizations including pool allocation, object co-location, static deallocation, and region-based garbage collection. The technique outlined in this paper also improves the efficiency of the static analysis by providing a normal form for the abstract models (speeding the convergence of the static analysis). We focus on two techniques for grouping parts of the heap. The first is a technique for precisely identifying recursive data structures in object-oriented programs based on the types declared in the program. The second technique is a novel method for grouping objects that make up the same composite structure and that allows us to partition the objects stored in a collection/array into groups based on a similarity relation. We provide a parametric component in the similarity relation in order to support specific analysis applications (such as a numeric analysis which would need to partition the objects based on numeric properties of the fields). Using the Barnes-Hut benchmark from the JOlden suite we show how these grouping methods can be used to identify various types of logical structures allowing the application of many region-based program optimizations.

Hermathena.

"A series of papers on literature, science and philosophy by members of Trinity College, Dublin."

Examination papers.

Mode of access: Internet.

From F energy rating to Nearly ZEB: project of energy retrofit and architectural upgrade of a brick terraced house in Co. Dublin, Ireland

Questo progetto è stato sviluppato durante un periodo di ricerca presso il Dipartimento di Ingegneria Civile del Trinity College e continuato presso l’Università di Bologna. Il progetto ha l’obiettivo di analizzare le soluzioni per l’ampliamento, la sostituzione degli impianti e l’ottimizzazione energetica di un tipico edificio residenziale Irlandese, una end of terrace in mattoni costruita negli anni ’20, collocata a Blackrock (Dublino). Diversi studi sostengono che lo stock abitativo irlandese è il peggiore del nord Europa per quanto riguarda la performance energetica. Questa tesi consta di una prima parte di studio del contesto e delle tecniche costruttive tradizionali irlandesi; è presente un capitolo di approfondimento sulle leggi riguardanti le costruzioni e gli incentivi forniti dal governo irlandese per interventi di retrofit energetico. Il terzo capitolo è un’analisi dell'esistente, con disegni del rilievo geometrico, immagini dell’edificio originale, termogrammi e dati riguardanti l’attuale performance energetica. Vengono poi mostrate diverse ipotesi di progetto e, una volta determinata la disposizione degli spazi interni, vengono considerate due soluzioni simili, ma costruite con pacchetti costruttivi diversi. Nel Progetto A l’involucro dell’addizione ha una struttura in muratura, nel Progetto B la struttura è in X-lam. Le performance energetiche delle due proposte vengono confrontate tramite una simulazione attuata grazie all'utilizzo del software dinamico IES-VE. Viene valutata l’applicazione di energie rinnovabili, quali l’energia solare e eolica e l’apporto che queste possono dare al bilancio energetico. Infine viene fatta un’analisi dei costi, valutando possibili suddivisioni dei lavori e ipotizzando un piano di ritorno dell’investimento, anche in combinazione con l’applicazione di energie rinnovabili. Alla fine del progetto si trova una valutazione quantitativa dei miglioramenti dell’edificio e un’analisi critica dei limiti del progetto.

Reflections on Practice Learning in Northern Ireland and the Republic of Ireland: Lessons from Student Experiences

Practice learning is viewed as one of the most important components of social work education wherever in the world social work is practised. Northern Ireland and the Republic of Ireland provide an interesting case example of the educational impact on students resulting from their experience of different models of practice learning. Although sharing a common historical legacy, recent developments in policy in both jurisdictions have tended to engender greater divergences in how programmes organise and deliver social work education and practice learning. Drawing on findings from a joint-research project with students in Queen’s University, Belfast and Trinity College, Dublin, the authors highlight significant cross-border similarities as well as differences in the way practice learning is conceptualised, organised and delivered. Through comparing and contrasting student experiences, the authors reflect on how the findings might help to inform the future development of practice learning standards in both jurisdictions.

The journal of the Royal Historical and Archaeological Association of Ireland.

[Vols. 11-20] called 4th ser., v. 1 (1870-71)-v. 10 (1889).

Cogadh Gaedhel re Gallaibh. The war of the Gaedhil with The Gaill, or, The invasions of Ireland by the Danes and other Norsemen.

Appendix: A. The fragment of this work preserved in the Book of Leinster. B. Chronology and genealogy of the kings of Munster and of Ireland, during the period of Scandinavian invasions. C. Maelseachlainn's description of the battle of Clontarf, from the Brussels ms. D. Genealogy of the Scandinavian chieftains named as leaders of the invasions of Ireland.