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| Title: | Runtime address space computation for SDSM systems |
|---|---|
| Author: | Balart, J; González Tallada, Marc; Martorell Bofill, Xavier; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José |
| Other authors: | Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CAP - Grup de Computació d'Altes Prestacions |
| Abstract: | This paper explores the benefits and limitations of using a inspector/executor approach for Software Distributed Shared Memory (SDSM) systems. The role of the inspector is to obtain a description of the address space accessed during the execution of parallel loops. The information collected by the inspector will enable the runtime to optimize the movement of shared data that will happen during the executor phase. This paper addresses the main issues that have been considered to embed an inspector/executor model in a SDSM system: amount of data collected by the inspector, the accurateness of this data when the loop has data and/or control dependences, and the computational overhead introduced. The paper also includes a description of the SDSM system where the inspector/executor model has been embedded. The proposal is evaluated with four applications from the NAS benchmark suite. The evaluation shows that the accuracy of the inspection and the small overheads introduced by the approach allow its use in a SDSM system. |
| Abstract: | Peer Reviewed |
| Subject(s): | -Àrees temàtiques de la UPC::Informàtica::Sistemes d'informació::Emmagatzematge i recuperació de la informació -Àrees temàtiques de la UPC::Informàtica::Arquitectura de computadors::Arquitectures paral·leles -Memory management (Computer science) -Parallel programming (Computer science) -Gestió de memòria (Informàtica) -Programació en paral·lel (Informàtica) |
| Rights: | Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| Document type: | Article - Published version Article |
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