مؤتمر
Feasibility study on 3D frequency-domain anisotropic elastic wave modeling using spectral element method with parallel direct linear solvers
| العنوان: | Feasibility study on 3D frequency-domain anisotropic elastic wave modeling using spectral element method with parallel direct linear solvers |
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| المؤلفون: | Li, Yang, Brossier, Romain, Métivier, Ludovic |
| المساهمون: | Laboratoire d'automatique et de génie des procédés (LAGEP), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences de la Terre (ISTerre), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement IRD : UR219-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ), Equations aux Dérivées Partielles (EDP ), Laboratoire Jean Kuntzmann (LJK ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) |
| المصدر: | SEG Technical Program Expanded Abstracts 2019 ; SEG 2019 annual meeting ; https://hal.science/hal-02325586Test ; SEG 2019 annual meeting, Sep 2019, San Antonio, United States. pp.3770-3774, ⟨10.1190/segam2019-3215003.1⟩ |
| بيانات النشر: | HAL CCSD Society of Exploration Geophysicists |
| سنة النشر: | 2019 |
| المجموعة: | HAL Lyon 1 (University Claude Bernard Lyon 1) |
| مصطلحات موضوعية: | frequency-domain, 3D, elastic, modeling, wave propagation, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation |
| جغرافية الموضوع: | San Antonio, United States |
| الوقت: | San Antonio, United States |
| الوصف: | International audience ; A feasibility study on 3D frequency-domain anisotropic elastic wave modeling is conducted. The spectral element method is applied to discretize the 3D frequency-domain anisotropic elastic wave equation and the linear system is solved by parallel direct solvers, MUMPS andWSMP. A hybrid implementation of MPI and OpenMP for MUMPS is shown to be more efficient in flops and memory cost during the factorization. The influence of complex topography on MUMPS performance is negligible. With available resources, the largest scale modeling, 30 wavelengths in each dimension, is achieved. Using the block lowrank feature ofMUMPSleads to computational gains compared with the full-rank version. Limitation of MUMPS scalability for large number of MPI processes prompts us to investigate the performance of an alternative linear solver,WSMP. Preliminary comparison on small scale modelings shows a better scalability of WSMP while being more computational demanding. |
| نوع الوثيقة: | conference object |
| اللغة: | English |
| العلاقة: | hal-02325586; https://hal.science/hal-02325586Test; https://hal.science/hal-02325586/documentTest; https://hal.science/hal-02325586/file/2019_SEG_Li_FDSEM_submitted.pdfTest |
| DOI: | 10.1190/segam2019-3215003.1 |
| الإتاحة: | https://doi.org/10.1190/segam2019-3215003.1Test https://hal.science/hal-02325586Test https://hal.science/hal-02325586/documentTest https://hal.science/hal-02325586/file/2019_SEG_Li_FDSEM_submitted.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.1D38EC4D |
| قاعدة البيانات: | BASE |
| DOI: | 10.1190/segam2019-3215003.1 |
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