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Previous issue date: 2012-03-29 / Transactional Memory is considered by many researchers to be one of the most promising solutions to address the problem of programming multicore processors. This model provides the scalability of fine-grained locking while avoiding common issues of tradicional mechanisms, such as deadlocks. During these almost twenty years of research, several studies were carried out to identify approaches in order to maximize the use of Transactional Memories in the Parallel Programming scenario. Furthermore, several TM systems have been developed in different types of implementations as well as new Benchmarks were proposed for evaluation and testing of TM systems. However, despite advances in the area, Transactional Memory is not considered yet a ready solution by the scientific community, due to unanswered questions in the literature, such as: How to identify if an application has an advantage using Transactional Memory? and Why some applications do not benefit from the use of Transactional Memories? , This work presents a comparative evaluation of a set of transactional applications and systems, introducing the field current state-of-the-art, understanding the existing problems and identifying growth opportunities in the STM systems in order to contribute to answer the questions that remain open in the scientific community. / Mem?rias Transacionais s?o consideradas por muitos pesquisadores como a mais promissora solu??o para resolver problemas de programa??o multicore. Esse modelo promete escalabilidade com pequena granularidade, enquanto elimina os problemas comuns nos mecanismos convencionais de locks, como deadlocks por exemplo. Durante esses quase vinte anos de pesquisas, diversos estudos foram realizados visando identificar abordagens para maximizar o uso de Mem?rias Transacionais no cen?rio de Programa??o Paralela. Al?m disso, diversos sistemas TM foram desenvolvidos em diferentes tipos de implementa??es, bem como novos Benchmarks foram propostos para avalia??o e testes de sistemas TM. Entretanto, apesar do avan?o da ?rea, Mem?ria Transacional n?o ? considerada uma solu??o pronta para comunidade cient?fica devido ?s perguntas ainda n?o respondidas na literatura, tais como: Como identificar se uma aplica??o ter? vantagem na utiliza??o de mem?rias transacionais? e Porque algumas aplica??es n?o se beneficiam com o uso de Mem?rias Transacionais?. Esse trabalho realiza uma avalia??o comparativa de um conjunto de sistemas e aplica??es transacionais, apresentando o estado da arte atual, compreendendo os problemas existentes e identificando oportunidades de crescimento nos sistemas STM de maneira a contribuir para responder as perguntas ainda em aberto na comunidade cient?fica.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/5185 |
| Date | 29 March 2012 |
| Creators | Rui, Fernando Furlan |
| Contributors | Fernandes, Luiz Gustavo Le?o |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Ci?ncia da Computa??o, PUCRS, BR, Faculdade de Inform?ca |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 1974996533081274470, 500, 600, 1946639708616176246 |
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