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Automated Code Generation for Lattice QCD Simulation

hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorBARTHOU, Denis
hal.structure.identifierLaboratoire de l'Accélérateur Linéaire [LAL]
dc.contributor.authorGROSDIDIER, Gilbert
hal.structure.identifierLaboratoire de l'Accélérateur Linéaire [LAL]
hal.structure.identifierLaboratoire de Physique Théorique d'Orsay [Orsay] [LPT]
hal.structure.identifierInstitut de Recherches sur les lois Fondamentales de l'Univers [IRFU]
dc.contributor.authorPETROV, Konstantin
hal.structure.identifierGlobal parallel and distributed computing [GRAND-LARGE]
hal.structure.identifierSystèmes parallèles (LRI) [ParSys - LRI]
dc.contributor.authorKRUSE, Michael
hal.structure.identifierGlobal parallel and distributed computing [GRAND-LARGE]
hal.structure.identifierSystèmes parallèles (LRI) [ParSys - LRI]
dc.contributor.authorEISENBEIS, Christine
hal.structure.identifierLaboratoire de Physique Théorique d'Orsay [Orsay] [LPT]
dc.contributor.authorPÈNE, Olivier
hal.structure.identifierLaboratoire de Physique Théorique d'Orsay [Orsay] [LPT]
dc.contributor.authorBRAND-FOISSAC, Olivier
hal.structure.identifierCentre de Recherche en Informatique [CRI]
dc.contributor.authorTADONKI, Claude
hal.structure.identifierCAPS Enterprise [CAPS]
dc.contributor.authorDOLBEAU, Romain
dc.date.accessioned2024-04-15T09:42:14Z
dc.date.available2024-04-15T09:42:14Z
dc.date.issued2013-12-15
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/197666
dc.description.abstractEnQuantum Chromodynamics (QCD) is the theory of strong nuclear force, responsible of the interactions between sub-nuclear particles. QCD simulations are typically performed through the lattice gauge theory approach, which provides a discrete analytical formalism called LQCD (Lattice Quantum Chromodynamics). LQCD simulations usually involve generating and then processing data on petabyte scale which demands multiple teraflop-years on supercomputers. Large parts of both, generation and analysis, can be reduced to the inversion of an extremely large matrix, the so-called Wilson-Dirac operator. For this purpose, and because this matrix is always sparse and structured, iterative methods are definitely considered. Therefore, the procedure of the application of this operator, resulting in a vector-matrix product, appears as a critical computation kernel that should be optimized as much as possible. Evaluating the Wilson-Dirac operator involves symmetric stencil calculations where each node has 8 neighbors. Such configuration is really hindering when it comes to memory accesses and data exchanges among processors. For current and future generation of supercomputers the hierarchical memory structure make it next to impossible for a physicist to write an efficient code. Addressing these issues in other to harvest an acceptable amount of computing cycles for the real need, which means reaching a good level of efficiency, is the main concern of this paper. We present here a Domain Specific Language and corresponding toolkit, called QIRAL, which is a complete solution from symbolic notation to simulation code.
dc.description.sponsorshipVers le Petaflop pour LQCD - ANR-08-COSI-0010
dc.language.isoen
dc.subject.enlinear system
dc.subject.enLQCD
dc.subject.enHPC
dc.subject.encode generation
dc.subject.enaccelerator
dc.subject.enparallel
dc.subject.enmatrix
dc.title.enAutomated Code Generation for Lattice QCD Simulation
dc.typeRapport
dc.subject.halInformatique [cs]/Calcul parallèle, distribué et partagé [cs.DC]
bordeaux.page13
bordeaux.hal.laboratoriesLaboratoire Bordelais de Recherche en Informatique (LaBRI) - UMR 5800*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.type.institutionINRIA
bordeaux.type.reportrr
hal.identifierhal-00918812
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00918812v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2013-12-15&rft.spage=13&rft.epage=13&rft.au=BARTHOU,%20Denis&GROSDIDIER,%20Gilbert&PETROV,%20Konstantin&KRUSE,%20Michael&EISENBEIS,%20Christine&rft.genre=unknown


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