I prefer to compile LAPACK and create a library. I then, create a module with interfaces to LAPACK subroutines. For instance I have created a function for the eigenvalues and eigenvectors of a ... matrix A I type v=eigVectors(A,sym="Y"). In this way the cumbersome argument list of the LAPACK routines does not appear, or have to be used anywhere. Michael

I downloaded lapack recently and wanted to put a dent in ...take a eal matrix and use lapack to give me the...form, which, I can then use for bigger and better things...LDA, TAU, WORK, LWORK, INFO ) * * -- LAPACK routine (version 3.1) -- * Univ...workspace query is assumed; the routine * only calculates the optimal size...deal with calling an f77 routine with main compiled in contemporary...

...of tedious: C:\Program Files\University Of Tennessee\LAPACK 3.1.1\src\depend>dir Volume in drive ... Directory of C:\Program Files\University Of Tennessee\LAPACK 3.1.1\src\depend 09/19/2008...? Netlib has a nice interface for fetching the driver routine you need plus all dependencies - e.g. "dsyev plus dependencies" from http://www.netlib.org/lapack/double/

..., 18 Sep 2008 19:37:28 -0600 skrev Ron Ford: I downloaded lapack recently and wanted to put a dent in it by calling .... So I'll be hoping to take a eal matrix and use lapack to give me the Hessenberg form, which, I can then use for bigger and better things. Hi, Lapack has both driver routines and expert routines. If you just want to get started with for example eigenvalue ...

... and collected the ones I think I need.  It was nothing short of tedious: C:\Program Files\University Of Tennessee\LAPACK 3.1.1\src\depend>dir  Volume in drive C has no label.  Volume Serial Number is 486B-CFF3  Directory of C:\Program Files\University Of Tennessee\LAPACK 3.1.1\src\depend 09/19/2008  12:06 AM    <DIR>          . 09/19/...

... lot more than what I have in my little prog. If you want an easier to use Fortran 95 lapack interface there's always LAPACK95: http://www.netlib.org/lapack95/ I'm hoping to get this .... My first question is how do I deal with calling an f77 routine with main compiled in contemporary gfortran? As others explained, that's no problem....

... and collected the ones I think I need. It was nothing short of tedious: C:\Program Files\University Of Tennessee\LAPACK 3.1.1\src\depend>dir Volume in drive C has no label. Volume Serial Number is 486B-CFF3 Directory of C:\Program Files\University Of Tennessee\LAPACK 3.1.1\src\depend 09/19/2008 12:06 AM <DIR> . 09/19/2008 12:06 AM <...

... library? I've had zero luck building large ANYTHING on Windows from source, so I add pieces until it works. I hadn't noticed that there's a half dozen calls to other routines, not all of which are in the same folder. EXTERNAL SAXPY, SGEHD2, SGEMM, SLAHR2, SLARFB, STRMM, $ XERBLA We'll see if it cascades much farther. I suppose I could put ...

... pm, Ron Ford <r...@example.invalid> wrote: I downloaded lapack recently and wanted to put a dent in it by ... question is how do I deal with calling an f77 routine with main compiled in contemporary gfortran? gfortran (like g95) ... want to put your subroutines in a module and USE that module. Just write your module as fixed-format source and use an extension of .f for the source file. A ...

lleshuang@gmail.com wrote: I have a qustion about Lapack. I don't known which subroutines suitable for my problem. My problem is solving a linear equation system which ... suitable for my problem? I'm not sure about the selection. Please give me some advice. Thanks! If your matrix is truly banded, the Lapack routines DGBTRF and DGBTRS are the ones to use. - mecej4