• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Fakultet for informasjonsteknologi og elektroteknikk (IE)
  • Institutt for datateknologi og informatikk
  • View Item
  •   Home
  • Fakultet for informasjonsteknologi og elektroteknikk (IE)
  • Institutt for datateknologi og informatikk
  • View Item
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
View/Open
455357_FULLTEXT01.pdf (1.500Mb)
455357_COVER01.pdf (195.1Kb)
URI
http://hdl.handle.net/11250/252719
Date
2011
Metadata
Show full item record
Collections
  • Institutt for datateknologi og informatikk [3881]
Abstract
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.
Publisher
Institutt for datateknikk og informasjonsvitenskap

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit