Computational Characteristics of Production Seismic Migration and its Performance on Novel Processor Architectures

Author

Panetta, Jairo ; De Souza Filho, Paulo R P ; da Cunha Filho, C.A. ; Da Motta, Fernando M Roxo ; Pinheiro, Silvio Sinedino ; Pedrosa, Ivan, Jr. ; Rosa, Andre L Romanelli ; Monnerat, Luiz R. ; Carneiro, Leandro T. ; De Albrecht, Carlos H B

Author_Institution

Petroleo Brasileiro SA, Rio de Janeiro

fYear

2007

fDate

24-27 Oct. 2007

Firstpage

11

Lastpage

18

Abstract

We describe the computational characteristics of the Kirchhoff prestack seismic migration currently used in daily production runs at Petrobras and its port to novel architectures. Fully developed in house, this portable and fault tolerant application has high sequential and parallel efficiency, with parallel scalability tested up to 8192 processors on the IBM Blue Gene without exhausting parallelism. Production load comprises thousands of jobs per year, consuming the installed park of a few thousand x86 CPU cores, with top production runs continuously using up to 1000 dedicated processors during 20 days. A built in mechanism automatically produces, collects and stores job performance data, allowing single job performance analysis and multi job performance statistics. Its port to quad-core x86 and Sony PlayStation 3 achieved very high price/performance and performance/watt gains over single core x86 machines. Port to the PS3 is described in detail. Experimental performance data on a modest PS3 cluster is also presented.

Keywords

fault tolerant computing; geophysics computing; multiprocessing systems; parallel architectures; seismology; IBM Blue Gene; Kirchhoff prestack seismic migration; Petrobras; fault tolerant application; job performance analysis; multijob performance statistics; parallel efficiency; parallel scalability; processor architecture; production seismic migration; Computer architecture; Continuous production; Fault tolerance; Job production systems; Parallel processing; Performance analysis; Performance gain; Scalability; Sequential analysis; Statistical analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Architecture and High Performance Computing, 2007. SBAC-PAD 2007. 19th International Symposium on

Conference_Location

Rio Grande do Sul

ISSN

1550-6533

Print_ISBN

978-0-7695-3014-7

Type

conf

DOI

10.1109/SBAC-PAD.2007.13

Filename

4384037