https://github.com/pv/arpack-ng-old

https://github.com/opencollab/arpack-ng
https://github.com/pv/arpack-ng-old

Last synced: about 2 months ago
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https://github.com/opencollab/arpack-ng

• Host: GitHub
• URL: https://github.com/pv/arpack-ng-old
• Owner: pv
• License: other
• Created: 2013-07-25T15:09:54.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2019-07-22T20:20:30.000Z (almost 6 years ago)
• Last Synced: 2025-02-01T22:29:10.326Z (4 months ago)
• Language: FORTRAN
• Homepage:
• Size: 2.5 MB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README
  • Changelog: CHANGES
  • License: COPYING

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README

        
ARPACK-NG is a collection of Fortran77 subroutines designed to solve large scale

eigenvalue problems.

Important Features:

* Reverse Communication Interface.

* Single and Double Precision Real Arithmetic Versions for Symmetric,

  Non-symmetric, Standard or Generalized Problems.

* Single and Double Precision Complex Arithmetic Versions for Standard or

  Generalized Problems.

* Routines for Banded Matrices - Standard or Generalized Problems.

* Routines for The Singular Value Decomposition.

* Example driver routines that may be used as templates to implement numerous

  Shift-Invert strategies for all problem types, data types and precision.

This project is a joint project between Debian, Octave and Scilab in order to

provide a common and maintained version of arpack.

Indeed, no single release has been published by Rice university for the last

few years and since many software (Octave, Scilab, R, Matlab...) forked it and

implemented their own modifications, arpack-ng aims to tackle this by providing

a common repository and maintained versions.

arpack-ng is replacing arpack in Debian & Ubuntu. Fink, Fedora and Redhat are

currently doing the same move.

1. You have successfully unbundled ARPACK-NG and are now in the ARPACK-NG

   directory that was created for you.

2. 

   The directory SRC contains the top level routines including 

   the highest level reverse communication interface routines

      ssaupd, dsaupd - symmetric single and double precision

      snaupd, dnaupd - non-symmetric single and double precision

      cnaupd, znaupd - complex non-symmetric single and double precision

   The headers of these routines contain full documentation of calling

   sequence and usage.  Additional information is in the DOCUMENTS directory.

   The directory PARPACK contains the Parallel ARPACK routines.

     

3. Example driver programs that illustrate all the computational modes,

   data types and precisions may be found in the EXAMPLES directory.

   Upon executing the 'ls EXAMPLES' command you should see

      BAND

      COMPLEX

      NONSYM

      README

      SIMPLE

      SVD

      SYM

   Example programs for banded, complex, nonsymmetric, symmetric,

   and singular value decomposition may be found in the directories

   BAND, COMPLEX, NONSYM, SYM, SVD respectively.  Look at the README

   file for further information.  To get started, get into the SIMPLE

   directory to see example programs that illustrate the use of ARPACK in

   the simplest modes of operation for the most commonly posed 

   standard eigenvalue problems.  

   Example programs for Parallel ARPACK may be found in the directory

   PARPACK/EXAMPLES. Look at the README file for further information.

   The following instructions explain how to make the ARPACK library.

4. Unlike ARPACK, ARPACK-NG is providing autotools based build system.

   Therefor, the classical:

   $ ./configure

   $ make 

   $ make install

   should work as expected.

5. Within DOCUMENTS directory there are three files 

   ex-sym.doc 

   ex-nonsym.doc and

   ex-complex.doc

   for templates on how to invoke the computational modes of ARPACK.

   Also look in the README file for explanations concerning the 

   other documents.

   Danny Sorensen   at  [email protected]

   Richard Lehoucq  at  [email protected]

   Chao Yang        at  [email protected]

   Kristi Maschhoff at  [email protected]

   Sylvestre Ledru  at  [email protected]

   Allan Cornet     at  [email protected]

 Good luck and enjoy.