GSTL: the geostatistical template library in C++
Identifieur interne : 008911 ( Main/Exploration ); précédent : 008910; suivant : 008912GSTL: the geostatistical template library in C++
Auteurs : Nicolas Remy [États-Unis] ; Arben Shtuka [France] ; Bruno Levy [France] ; Jef Caers [États-Unis]Source :
- Computers & geosciences [ 0098-3004 ] ; 2002.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Simulation.
English descriptors
Abstract
The development of geostatistics has been mostly accomplished by application-oriented engineers in the past 20 years. The focus on concrete applications gave birth to many algorithms and computer programs designed to address different issues, such as estimating or simulating a variable while possibly accounting for secondary information such as seismic data, or integrating geological and geometrical data. At the core of any geostatistical data integration methodology is a well-designed algorithm. Yet, despite their obvious differences, all these algorithms share many commonalities on which to build a geostatistics programming library, lest the resulting library is poorly reusable and difficult to expand. Building on this observation, we design a comprehensive, yet flexible and easily reusable library of geostatistics algorithms in C ++. The recent advent of the generic programming paradigm allows us elegantly to express the commonalities of the geostatistical algorithms into computer code. Generic programming, also referred to as "programming with concepts", provides a high level of abstraction without loss of efficiency. This last point is a major gain over object-oriented programming which often trades efficiency for abstraction. It is not enough for a numerical library to be reusable, it also has to be fast. Because generic programming is "programming with concepts", the essential step in the library design is the careful identification and thorough definition of these concepts shared by most geostatistical algorithms. Building on these definitions, a generic and expandable code can be developed. To show the advantages of such a generic library, we use GSTL to build two sequential simulation programs working on two different types of grids-a surface with faults and an unstructured grid without requiring any change to the GSTL code.
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The focus on concrete applications gave birth to many algorithms and computer programs designed to address different issues, such as estimating or simulating a variable while possibly accounting for secondary information such as seismic data, or integrating geological and geometrical data. At the core of any geostatistical data integration methodology is a well-designed algorithm. Yet, despite their obvious differences, all these algorithms share many commonalities on which to build a geostatistics programming library, lest the resulting library is poorly reusable and difficult to expand. Building on this observation, we design a comprehensive, yet flexible and easily reusable library of geostatistics algorithms in C ++. The recent advent of the generic programming paradigm allows us elegantly to express the commonalities of the geostatistical algorithms into computer code. Generic programming, also referred to as "programming with concepts", provides a high level of abstraction without loss of efficiency. This last point is a major gain over object-oriented programming which often trades efficiency for abstraction. It is not enough for a numerical library to be reusable, it also has to be fast. Because generic programming is "programming with concepts", the essential step in the library design is the careful identification and thorough definition of these concepts shared by most geostatistical algorithms. Building on these definitions, a generic and expandable code can be developed. To show the advantages of such a generic library, we use G<sub>S</sub>TL to build two sequential simulation programs working on two different types of grids-a surface with faults and an unstructured grid without requiring any change to the GSTL code.</div></front></TEI><affiliations><list><country><li>France</li><li>États-Unis</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Vandœuvre-lès-Nancy</li><li>Villers-les-Nancy</li></settlement></list><tree><country name="États-Unis"><noRegion><name sortKey="Remy, Nicolas" sort="Remy, Nicolas" uniqKey="Remy N" first="Nicolas" last="Remy">Nicolas Remy</name></noRegion><name sortKey="Caers, Jef" sort="Caers, Jef" uniqKey="Caers J" first="Jef" last="Caers">Jef Caers</name></country><country name="France"><region name="Grand Est"><name sortKey="Shtuka, Arben" sort="Shtuka, Arben" uniqKey="Shtuka A" first="Arben" last="Shtuka">Arben Shtuka</name></region><name sortKey="Levy, Bruno" sort="Levy, Bruno" uniqKey="Levy B" first="Bruno" last="Levy">Bruno Levy</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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