Shared memory abstraction: new approach under high concurrency conditions

In the current dissertation an implementation of shared memory abstraction on top of contemporary multi-core and many-core clusters has taken place. The results of the presented research effort are mainly depicted in the implementation of the cluster middleware platform Pleiad. Pleiad is a Java-base...

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Κύριος συγγραφέας: Καραντάσης, Κωνσταντίνος
Άλλοι συγγραφείς: Πολυχρονόπουλος, Ελευθέριος
Μορφή: Thesis
Γλώσσα:English
Έκδοση: 2012
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Διαθέσιμο Online:http://hdl.handle.net/10889/5257
id nemertes-10889-5257
record_format dspace
spelling nemertes-10889-52572022-09-05T05:00:43Z Shared memory abstraction: new approach under high concurrency conditions Αφαίρεση κοινής μνήμης: νέα προσέγγιση υπό συνθήκες υψηλής συγχρονικότητας Καραντάσης, Κωνσταντίνος Πολυχρονόπουλος, Ελευθέριος Πολυχρονόπουλος, Ελευθέριος Παπαθεοδώρου, Θεόδωρος Τριανταφύλλου, Παναγιώτης Χούσος, Ευθύμιος Κοζύρης, Νεκτάριος Πολυχρονόπουλος, Κωνσταντίνος Valero, Mateo Karantasis, Konstantinos Shared memory abstraction Parallel computing Pleiad Αφαίρεση κοινής μνήμης 004.53 In the current dissertation an implementation of shared memory abstraction on top of contemporary multi-core and many-core clusters has taken place. The results of the presented research effort are mainly depicted in the implementation of the cluster middleware platform Pleiad. Pleiad is a Java-based prototype that incorporates best practices from the field of distributed shared memory systems and also includes some prototype characteristics. Next we review briefly the main results and contributions of the current dissertation: • e presented middleware, Pleiad, is characterized by a highly modular design. Moreover, contrast to most other related efforts, which are usually bound to a specific implementation of consistency, Pleiad has the infrastructure to incorporate many implementations for a certain mechanism and can even interchange such implementations during runtime. • Reference implementations are offered for the relaxed consistency models of Lazy Release Consistency (LRC) and Scope Consistency (ScC). Pleiad is the first Javabased middleware to incorporate implementations for both protocols. • In the current dissertation is taking place one of the few evaluations on a cluster that is supplied with low-power processors (Intel Atom) and thus can be thought as a characteristic case of embedded oriented multi-core clusters. • In the current dissertation one of the first implementations of shared memory abstraction on top of GPU clusters is presented. Shared memory abstraction is evaluated under two schemes. On the first scheme shared memory programming with GPU clusters is achieved under a hybrid combination of the first commercial implementation of OpenMP for clusters, the Intel Cluster OpenMP, and the CUDA platform. e evaluated scheme is the first evaluation of OpenMP and CUDA in the context of GPU clusters. e second scheme involves the enhancement of Pleiad in order to support utilization of GPU clusters. Such implementation is one of the few unified implementation of a shared memory abstraction programming environment that • For the moment there is no establishment of available and widely used benchmarks or application codes that utilize multiple GPUs, either on a cluster or a single node. us, among the thesis contributions is considered the evaluation of shared memory abstraction with real application codes, since the few related systems either have used simple kernels or have been evaluated on a single node. • Specifically, in the current thesis applications from two characteristic domains, computational fluid dynamics (CFD) and data clustering, have been implemented and evaluated using GPU clusters and single GPUs. In the first case, a computationally intensive CDF code that operates on structured grids has been accelerated on a GPU cluster, while a simulation that manipulates unstructured grid has been accelerated in the context of a single GPU and demonstrates its potential for GPU cluster acceleration. Accordingly, a partitional data clustering algorithm is accelerated using shared memory abstraction on GPU clusters and a preliminary implementation of a hierarchical data clustering algorithm on GPUs is described. - 2012-05-15T10:33:40Z 2012-05-15T10:33:40Z 2011-02 2012-05-15 Thesis http://hdl.handle.net/10889/5257 en Η ΒΚΠ διαθέτει αντίτυπο της διατριβής σε έντυπη μορφή στο βιβλιοστάσιο διδακτορικών διατριβών που βρίσκεται στο ισόγειο του κτιρίου της. 6 application/pdf
institution UPatras
collection Nemertes
language English
topic Shared memory abstraction
Parallel computing
Pleiad
Αφαίρεση κοινής μνήμης
004.53
spellingShingle Shared memory abstraction
Parallel computing
Pleiad
Αφαίρεση κοινής μνήμης
004.53
Καραντάσης, Κωνσταντίνος
Shared memory abstraction: new approach under high concurrency conditions
description In the current dissertation an implementation of shared memory abstraction on top of contemporary multi-core and many-core clusters has taken place. The results of the presented research effort are mainly depicted in the implementation of the cluster middleware platform Pleiad. Pleiad is a Java-based prototype that incorporates best practices from the field of distributed shared memory systems and also includes some prototype characteristics. Next we review briefly the main results and contributions of the current dissertation: • e presented middleware, Pleiad, is characterized by a highly modular design. Moreover, contrast to most other related efforts, which are usually bound to a specific implementation of consistency, Pleiad has the infrastructure to incorporate many implementations for a certain mechanism and can even interchange such implementations during runtime. • Reference implementations are offered for the relaxed consistency models of Lazy Release Consistency (LRC) and Scope Consistency (ScC). Pleiad is the first Javabased middleware to incorporate implementations for both protocols. • In the current dissertation is taking place one of the few evaluations on a cluster that is supplied with low-power processors (Intel Atom) and thus can be thought as a characteristic case of embedded oriented multi-core clusters. • In the current dissertation one of the first implementations of shared memory abstraction on top of GPU clusters is presented. Shared memory abstraction is evaluated under two schemes. On the first scheme shared memory programming with GPU clusters is achieved under a hybrid combination of the first commercial implementation of OpenMP for clusters, the Intel Cluster OpenMP, and the CUDA platform. e evaluated scheme is the first evaluation of OpenMP and CUDA in the context of GPU clusters. e second scheme involves the enhancement of Pleiad in order to support utilization of GPU clusters. Such implementation is one of the few unified implementation of a shared memory abstraction programming environment that • For the moment there is no establishment of available and widely used benchmarks or application codes that utilize multiple GPUs, either on a cluster or a single node. us, among the thesis contributions is considered the evaluation of shared memory abstraction with real application codes, since the few related systems either have used simple kernels or have been evaluated on a single node. • Specifically, in the current thesis applications from two characteristic domains, computational fluid dynamics (CFD) and data clustering, have been implemented and evaluated using GPU clusters and single GPUs. In the first case, a computationally intensive CDF code that operates on structured grids has been accelerated on a GPU cluster, while a simulation that manipulates unstructured grid has been accelerated in the context of a single GPU and demonstrates its potential for GPU cluster acceleration. Accordingly, a partitional data clustering algorithm is accelerated using shared memory abstraction on GPU clusters and a preliminary implementation of a hierarchical data clustering algorithm on GPUs is described.
author2 Πολυχρονόπουλος, Ελευθέριος
author_facet Πολυχρονόπουλος, Ελευθέριος
Καραντάσης, Κωνσταντίνος
format Thesis
author Καραντάσης, Κωνσταντίνος
author_sort Καραντάσης, Κωνσταντίνος
title Shared memory abstraction: new approach under high concurrency conditions
title_short Shared memory abstraction: new approach under high concurrency conditions
title_full Shared memory abstraction: new approach under high concurrency conditions
title_fullStr Shared memory abstraction: new approach under high concurrency conditions
title_full_unstemmed Shared memory abstraction: new approach under high concurrency conditions
title_sort shared memory abstraction: new approach under high concurrency conditions
publishDate 2012
url http://hdl.handle.net/10889/5257
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