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ARTÍCULO
TITULO

xSDK Foundations: Toward an Extreme-scale Scientific Software Development Kit

Roscoe Bartlett    
Irina Demeshko    
Todd Gamblin    
Glenn Hammond    
Michael Allen Heroux    
Jeffrey Johnson    
Alicia Klinvex    
Xiaoye Li    
Lois Curfman McInnes    
J. David Moulton    
Daniel Osei-Kuffuor    
Jason Sarich    
Barry Smith    
James Willenbring    
Ulrike Meier Yang    

Resumen

Extreme-scale computational science increasingly demands multiscale and multiphysics formulations. Combining software developed by independent groups is imperative: no single team has resources for all predictive science and decision support capabilities. Scientific libraries provide high-quality, reusable software components for constructing applications with improved robustness and portability.  However, without coordination, many libraries cannot be easily composed.  Namespace collisions, inconsistent arguments, lack of third-party software versioning, and additional difficulties make composition costly.The Extreme-scale Scientific Software Development Kit (xSDK) defines community policies to improve code quality and compatibility across independently developed packages (hypre, PETSc, SuperLU, Trilinos, and Alquimia) and provides a foundation for addressing broader issues in software interoperability, performance portability, and sustainability.  The xSDK provides turnkey installation of member software and seamless combination of aggregate capabilities, and it marks first steps toward extreme-scale scientific software ecosystems from which future applications can be composed rapidly with assured quality and scalability.

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