Copyright Notice:

The documents distributed by this server have been provided by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a noncommercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.

Publications of SPCL

A. Arteaga, O. Fuhrer, T. Hoefler:

 Designing Bit-Reproducible Portable High-Performance Applications

(. Vol , Nr. , In Proceedings of the 28th IEEE International Parallel and Distributed Processing Symposium (IPDPS), presented in Phoenix, AR, USA, pages , IEEE Computer Society, ISSN: , ISBN: , Apr. 2014, )

Abstract

Bit-reproducibility has many advantages in the context of high-performance computing. Besides simplifying and making more accurate the process of debugging and testing the code, it can allow the deploying of applications on heterogeneous systems, maintaining the consistency of the computations. In this work we analyze the basic operations performed by scientific applications and identify the possible sources of non-reproducibility. In particular, we consider the tasks of evaluating transcendental functions and performing non-associative reductions. We present a set of techniques to solve the problem of non-reproducibility and we propose improvements over existing algorithms to perform reproducible computations in a portable way, at the same time obtaining good performance and accuracy. By applying this techniques to more complex tasks we show that bit-reproducibility can be achieved on a broad range of scientific applications.

Documents

download article:
download slides:
 

BibTeX

@inproceedings{arteaga-bitrep,
  author={Andrea Arteaga and Oliver Fuhrer and Torsten Hoefler},
  title={{Designing Bit-Reproducible Portable High-Performance Applications}},
  journal={},
  institution={},
  year={2014},
  month={04},
  pages={},
  volume={},
  number={},
  booktitle={Proceedings of the 28th IEEE International Parallel and Distributed Processing Symposium (IPDPS)},
  location={Phoenix, AR, USA},
  publisher={IEEE Computer Society},
  issn={},
  isbn={},
  note={},
}