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A Design Study of a Low-Cost Heterogeneous Parallel Computer

2021-11-09Journal article Embargoed access
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dc.contributor.authorBarata, Jorge M M
dc.contributor.authorSilva, André
dc.contributor.authorGarcês, Raúl L. M.
dc.date.accessioned2022-04-11T14:33:46Z
dc.date.embargo2060-11-09
dc.date.issued2021-11-09
dc.description.abstractA design study of a low-cost heterogeneous parallel computer based on already existing hardware is presented. The UNIX operating system is used together with PVM for message passing control. The parallel machine is constructed using existing Intel PC's and Alpha workstation platforms. The new techniques and algorithms are successfully applied to the grid generation problem based on the solution of partial differential equations with control of the boundary point distribution. Two different programming models were used. One uses decomposition of the domain into as many parts as there are processors, and revealed high reductions on the total turnaround time, although load balancing was a major problem. The other programming model has the possibility of changing the position of the points of the interface between each sub-grid, and allows reductions of the total turnaround time up to 1.6 times for the case of 3 processors, while the quality characteristics of the final grid are maintained. The communication times were reduced up to 7.5% of the total turnaround times, but the recursive nature of the numerical iterative process of the grid generation method causes a substantial increase in the number of iterations, reducing the parallel machine performance.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologiapt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBarata, J.M.M., Silva, A.R.R., Garcês, R.L.M. A Design Study of Low-Cost Heterogeneous Parallel Computer ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000, Orlando, Florida, EUA, 5-10 novembro, 2000 DOI: 10.1115/IMECE2000-2108pt_PT
dc.identifier.doi10.1115/IMECE2000-2108pt_PT
dc.identifier.isbn978-0-7918-1925-8
dc.identifier.urihttp://hdl.handle.net/10400.6/12208
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Society of Mechanical Engineers (ASME)pt_PT
dc.relation.publisherversionhttps://asmedigitalcollection.asme.org/IMECE/proceedings-abstract/IMECE2000/19258/531/1125867pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectComputerspt_PT
dc.subjectDesignpt_PT
dc.subjectComputer programmingpt_PT
dc.subjectMesh generationpt_PT
dc.subjectAlgorithmspt_PT
dc.subjectEquipment performancept_PT
dc.subjectHardwarept_PT
dc.subjectMachinerypt_PT
dc.subjectPartial differential equationspt_PT
dc.subjectStresspt_PT
dc.titleA Design Study of a Low-Cost Heterogeneous Parallel Computerpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceOrlando, Floridapt_PT
oaire.citation.endPage536pt_PT
oaire.citation.startPage531pt_PT
oaire.citation.titleASME 2000 International Mechanical Engineering Congress and Expositionpt_PT
person.familyNameMartins Barata
person.familyNameResende Rodrigues da Silva
person.givenNameJorge Manuel
person.givenNameAndré
person.identifierhFY_5JYAAAAJ&hl
person.identifierJ-4185-2012
person.identifier.ciencia-idF611-BBCC-DAA8
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.orcid0000-0001-9014-5008
person.identifier.orcid0000-0002-4901-7140
person.identifier.scopus-author-id11439470600
person.identifier.scopus-author-id11440407500
rcaap.embargofct© 2000 by ASME.pt_PT
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc4346556-933d-4f70-9b6d-8e1670d57be6
relation.isAuthorOfPublication908e150d-3890-457c-b5da-09c84671cb93
relation.isAuthorOfPublication.latestForDiscoveryc4346556-933d-4f70-9b6d-8e1670d57be6

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