./math/arpack [solve large scale eigenvalue problems]
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Version: 96, Package name: arpack-96
Maintained by: The OpenBSD ports mailing-list
Master sites:
Description
ARPACK is a collection of Fortran77 subroutines designed to solve large
scale eigenvalue problems.

The package is designed to compute a few eigenvalues and corresponding
eigenvectors of a general n by n matrix A. It is most appropriate for
large sparse or structured matrices A where structured means that a
matrix-vector product w <- Av requires order n rather than the usual
order n2 floating point operations. This software is based upon an
algorithmic variant of the Arnoldi process called the Implicitly
Restarted Arnoldi Method (IRAM). When the matrix A is symmetric it
reduces to a variant of the Lanczos process called the Implicitly
Restarted Lanczos Method (IRLM). These variants may be viewed as a
synthesis of the Arnoldi/Lanczos process with the Implicitly Shifted QR
technique that is suitable for large scale problems. For many standard
problems, a matrix factorization is not required. Only the action of the
matrix on a vector is needed.

ARPACK software is capable of solving large scale symmetric,
nonsymmetric, and generalized eigenproblems from significant application
areas. The software is designed to compute a few (k) eigenvalues with
user specified features such as those of largest real part or largest
magnitude. Storage requirements are on the order of n*k locations. No
auxiliary storage is required. A set of Schur basis vectors for the
desired k-dimensional eigen-space is computed which is numerically
orthogonal to working precision. Numerically accurate eigenvectors are
available on request.


Filesize: 242.718 KB
Version History (View Complete History)
  • (2010-04-14) Updated to version: arpack-96p2
  • (2010-04-06) Updated to version: arpack-96p1
  • (2009-08-06) Updated to version: arpack-96p0
  • (2006-10-20) Package added to openports.se, version arpack-96 (created)
[show/hide] View available PLISTS (Can be a lot of data)

CVS Commit History:

   2015-03-16 12:08:00 by Christian Weisgerber | Files touched by this commit (869)
Log message:
fold lib-only PFRAG.shared into PLIST, regen PLIST, and bump
   2015-03-16 12:08:00 by Christian Weisgerber | Files touched by this commit (869)
Log message:
fold lib-only PFRAG.shared into PLIST, regen PLIST, and bump
   2015-03-16 12:08:00 by Christian Weisgerber | Files touched by this commit (869)
Log message:
fold lib-only PFRAG.shared into PLIST, regen PLIST, and bump
   2015-01-17 20:16:09 by Christian Weisgerber | Files touched by this commit (3349)
Log message:
Drop remaining MD5/RMD160/SHA1 checksums.
   2010-11-19 00:23:15 by Marc Espie | Files touched by this commit (332)
Log message:
new depends
   2010-11-07 13:33:59 by Marc Espie | Files touched by this commit (16)
Log message:
WANTLIB for math
   2010-10-23 09:09:57 by Steven Mestdagh | Files touched by this commit (19)
Log message:
replace MODFORTRAN_WANTG77 with MODFORTRAN_COMPILER
   2010-07-18 04:30:41 by Steven Mestdagh | Files touched by this commit (23)
Log message:
REVISION
   2010-06-12 12:00:14 by Steven Mestdagh | Files touched by this commit (3)
Log message:
pass FC via the environment; will ease use of gfortran later
   2010-06-07 03:50:25 by Stuart Henderson | Files touched by this commit (1)
Log message:
BUILD_DEPENDS on Fortran; feedback from steven@
   2010-04-14 09:43:23 by Jasper Lievisse Adriaanse | Files touched by this commit (3)
Log message:
- fix build on mips64
   2010-04-14 09:43:23 by Jasper Lievisse Adriaanse | Files touched by this commit (3)
Log message:
- fix build on mips64
   2010-04-14 09:43:23 by Jasper Lievisse Adriaanse | Files touched by this commit (3)
Log message:
- fix build on mips64
   2010-04-05 14:29:18 by Steven Mestdagh | Files touched by this commit (3)
Log message:
update with some bugfixes which are included in an extra distfile
from alexandr.shadchin at gmail, with some tweaks
   2010-04-05 14:29:18 by Steven Mestdagh | Files touched by this commit (3)
Log message:
update with some bugfixes which are included in an extra distfile
from alexandr.shadchin at gmail, with some tweaks
   2010-04-05 14:29:18 by Steven Mestdagh | Files touched by this commit (3)
Log message:
update with some bugfixes which are included in an extra distfile
from alexandr.shadchin at gmail, with some tweaks
   2009-08-05 14:40:46 by Steven Mestdagh | Files touched by this commit (4)
Log message:
drop maintainership for this stuff
   2007-09-15 12:44:37 by Steven Mestdagh | Files touched by this commit (60)
Log message:
remove quotes from COMMENT/PERMIT*/BROKEN
   2007-04-05 10:20:19 by Marc Espie | Files touched by this commit (912)
Log message:
base64 checksums.