Evaluation of x32-ABI in the Context of LHC Applications | Zendy

Nathalie Rauschmayr | Zendy; Achim Streit | Zendy

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Evaluation of x32-ABI in the Context of LHC Applications

Author(s) -

Nathalie Rauschmayr,

Achim Streit

Publication year - 2013

Publication title -

procedia computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.334

H-Index - 76

ISSN - 1877-0509

DOI - 10.1016/j.procs.2013.05.394

Subject(s) - computer science , large hadron collider , interface (matter) , overhead (engineering) , operating system , kernel (algebra) , embedded system , context (archaeology) , paleontology , physics , mathematics , bubble , quantum mechanics , combinatorics , maximum bubble pressure method , biology

The application binary interface x32 (x32-ABI) was introduced in Linux kernel 3.4 and is based on the x64 instruction set. Instead of 64-bit it uses 32-bit as size for pointers and C-data type long, reducing consequently memory overhead. As several LHC applications, especially reconstruction and analysis software, suffer memory problems, since the change from 32- to 64-bit, this binary interface has been evaluated. This paper shows that in most of the applications, used at CERN, the memory overhead can be reduced between 3% and 35% and the corresponding difference in CPU-time can be improved up to 30%

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