Added support to build Arpack-NG inside the Tensor library

Makefile.am

@@ -5,6 +5,9 @@ include aminclude.am
 
 EXTRA_DIST = autogen.sh $(DX_CONFIG) doc/html
 
+if TENSOR_ARPACK
+SUBDIRS += arpack-ng
+endif
 if HAVE_GTEST
 SUBDIRS += test
 endif

arpack-ng/COPYING

@@ -0,0 +1,46 @@
+
+BSD Software License
+
+Pertains to ARPACK and P_ARPACK
+
+Copyright (c) 1996-2008 Rice University.  
+Developed by D.C. Sorensen, R.B. Lehoucq, C. Yang, and K. Maschhoff.
+All rights reserved.
+
+Arpack has been renamed to arpack-ng.
+
+Copyright (c) 2001-2011 - Scilab Enterprises
+Updated by Allan Cornet, Sylvestre Ledru.
+
+Copyright (c) 2010 - Jordi Gutiérrez Hermoso (Octave patch)
+
+Copyright (c) 2007 - Sébastien Fabbro (gentoo patch)
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+- Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer. 
+
+- Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer listed
+  in this license in the documentation and/or other materials
+  provided with the distribution.
+
+- Neither the name of the copyright holders nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT  
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT  
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+

arpack-ng/Makefile.am

@@ -0,0 +1,5 @@
+noinst_LTLIBRARIES = libarpackutil.la
+libarpackutil_la_SOURCES = \
+	icnteq.f icopy.f iset.f iswap.f ivout.f second_NONE.f \
+	svout.f  smout.f dvout.f  dmout.f cvout.f  cmout.f \
+	zvout.f  zmout.f

arpack-ng/README

@@ -0,0 +1,97 @@
+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.
+