LAPACK (Linear Algebra PACKage) is a commonly used library of subroutines for numerical linear algebra tasks, including solutions of linear sets of equations, linear least squares, eigenvalue problems, and singular value decomposition. LAPACK routines may be used with fortran, C and relatives and a variety of other languages.
Questions tagged [lapack]
133 questions
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How to start using LAPACK in c++?
I'm new to computational science and I already have learned basic methods for integration, interpolation, methods like RK4, Numerov etc on c++ but recently my professor asked me to learn how to use LAPACK for solving problems related to matrices.…
Alireza
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Easily accessible scientific code that uses LAPACK
I would like to analyze some well-used scientific codes that make heavy use of LAPACK. I.e. I'm looking for codes that both spend a lot of time within LAPACK functions and use LAPACK non-trivially (i.e. calling more than just DGEMM). I would be…
MRocklin
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Lapack routines for solving A x = 0
I am looking for a LAPACK routine that allows to find a non-trivial solution to the following equation:
A x = 0
provided that A is a n×n square singular non-symmetric band matrix.
In reality A matrix may not be exactly singular as it is based on…
Maciek D.
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cgees subroutine
I'm tryng to learn to use a lapack subroutine but I got stuck. I hope this is the right forum... In this fortran program I'd like as a test to find the Shur form of the matrix ((0,1)(1,0)) using cgees, but the matrix "m" after the call in which the…
Thomas
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Matrix size LAPACK can support with level-3 BLAS
I am a newbie in using LAPACK library. I know that LAPACK's internal rountines break the large problem into smaller problems recursively (I am considering level-3 BLAS). If we consider matrix multiplication C= AB+C example, until what size (…
