• norsk
    • English
  • norsk 
    • norsk
    • English
  • Logg inn
Vis innførsel 
  •   Hjem
  • Fakultet for informasjonsteknologi og elektroteknikk (IE)
  • Institutt for datateknologi og informatikk
  • Vis innførsel
  •   Hjem
  • Fakultet for informasjonsteknologi og elektroteknikk (IE)
  • Institutt for datateknologi og informatikk
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

Profiling, Optimization and Parallelization of a Seismic Inversion Code

Stinessen, Bent Ove
Master thesis
Thumbnail
Åpne
455357_FULLTEXT01.pdf (1.500Mb)
455357_COVER01.pdf (195.1Kb)
Permanent lenke
http://hdl.handle.net/11250/252719
Utgivelsesdato
2011
Metadata
Vis full innførsel
Samlinger
  • Institutt for datateknologi og informatikk [5025]
Sammendrag
Modern chip multi-processors offer increased computing power through hardware parallelism. However, for applications to exploit this parallelism, they have to be either designed for or adapted to the new processor architectures. Seismic processing applications usually handle large amounts of data that are well suited for the task-level parallelism found in multi-core shared memory computer systems. In this thesis, a large production code for seismic inversion is profiled and analyzed to find areas of the code suitable for parallel optimization. These code fragments are then optimized through parallelization and by using highly optimized multi-threaded libraries. Our parallelizations of the linearized AVO seismic inversion algorithm used in the application, scales up to 24 cores, with almost linear speedup up to 16 cores, on a quad twelve-core AMD Opteron system. Overall, our optimization efforts result in a performance increase of about 60 % on a dual quad-core AMD Opteron system.The optimization efforts are guided by the Seven Dwarfs taxonomy and proposed benchmarks. This thesis thus serves as a case study of their applicability to real-world applications.This work is done in collaborations with Statoil and builds on previous works by Andreas Hysing, a former HPC-Lab master student, and by the author.
Utgiver
Institutt for datateknikk og informasjonsvitenskap

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit
 

 

Bla i

Hele arkivetDelarkiv og samlingerUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifterDenne samlingenUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifter

Min side

Logg inn

Statistikk

Besøksstatistikk

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit