NDLI: Towards the design of an automatically tuned linear algebra library

Content Provider	IEEE Xplore Digital Library
Author	Cuenca, J. Gimenez, D. Gonzalez, J.
Copyright Year	2002
Description	Author affiliation: Departamento de Ingenieria y Tecnologia de Computadores, Murcia Univ., Spain (Cuenca, J.)
Abstract	In this work we propose the architecture of an automatically tuned linear algebra library, which is composed by a set of linear algebra routines along with their installation routines. During the installation process on a system, the linear algebra routines will be tuned automatically to the system conditions: hardware characteristics and basic libraries used in the linear algebra routines. The design methodology is analysed with a block LU factorisation. Variants for a sequential and parallel version of this, routine on a logical rectangular mesh of processors are, considered. An analytical model of the algorithm is developed as the basis of our methodology, and the behaviour of the algorithm is analysed with message-passing using MPI on several platforms: Network of SUN workstations, SGI Origin 2000 and IBM SP2, and with, different basic linear algebra libraries: reference BLAS, machine-specific BLAS and ATLAS. The experiments show that it is possible to make a good automatic choice of configurable parameters of the linear algebra routines during the installation process. The average execution time of the linear algebra routine is reduced by about 15% with respect to the non-tuned version.
Starting Page	201
Ending Page	208
File Size	282979
Page Count	8
File Format	PDF
ISBN	0769514448
DOI	10.1109/EMPDP.2002.994270
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-01-09
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Linear algebra Libraries Ear Algorithm design and analysis Fires High performance computing Programming profession Electrical capacitance tomography Parallel processing Sun
Content Type	Text
Resource Type	Article

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