Re: eigs and Octave.app

[Thomas Treichl]

Mark McClure schrieb:
> ----- Original Message -----
> From: David Bateman <address@hidden>
>
>  > Isn't Octave.app compiled with f2c as Apple in their wisdom choose
>  > not to supply a fortran compiler in their Xcode suite.. That is
>  > probably the issue. Perhaps Arpack can be compiled with f2c as
>  > well..
>
>
> I suppose this makes sense; thanks for the info.  
>
> Two questions:
>  1) Has anyone had success with eigs on a Mac?  Perhaps,
>     via direct compilation of Octave as described here:
>     http://wiki.octave.org/wiki.pl?OctaveForMac

Hallo Mark,

please report if this works for you, the text describes how to install the
ARPACK software before the Octave-forge arpack package can be installed and
this text also will be part of the Readme.html file (if it works for you like
it does work for me) of the next Octave.app release.

  Thomas

How can I install the Arpack–package from Octave–Forge that also depends further
libraries?
================================================================================

As described previously you need to download, configure, compile and install the 
needed ARPACK-software before you install the Octave–Forge package.

1. Download a current version of the ARPACK–software and the patch that is 
available, eg.

  bash ~$ curl -s -S \
    http://www.caam.rice.edu/software/ARPACK/SRC/arpack96.tar.Z \
    -o arpack96.tar.Z
  bash ~$ curl -s -S \
    http://www.caam.rice.edu/software/ARPACK/SRC/patch.tar.Z \
    -o patch.tar.Z

2. Unpack the downloaded files, patch the codes and change into the directory 
that has been created, eg.

  bash:~$ tar -xzf arpack96.tar.Z
  bash:~$ tar -xzf patch.tar.Z
  bash:~$ cd ARPACK
  bash:~/ARPACK$

3. Edit the file ARmake.inc and change the values of the following variables in 
a similiar way, eg.

  # this is the location of your current ARPACK directory that has been created
  home = $(HOME)/ARPACK

  # this actually only results in the name of the created libarpack_${PLAT}.a 

  PLAT = MAC

  # remove the option -cg89 that is not compatible with fort77
  FFLAGS = -O

  # use backslashes without spaces here and use tabulators at the
  # beginnings of the lines
  FC = PATH=/Applications/Octave.app/Contents/Resources/bin:${PATH}\
          /Applications/Octave.app/Contents/Resources/bin/fort77\
          -I/Applications/Octave.app/Contents/Resources/include

  # make is in the directory /usr/bin not in /bin
  MAKE = /usr/bin/make

4. Compile the ARPACK–software and change the name of the created static library 
libarpack_MAC.a into libarpack.a. Then move the renamed static library file into 
the lib directory of Octave.app, eg.

  bash:~/ARPACK$ make lib
  bash:~/ARPACK$ mv libarpack_MAC.a libarpack.a
  bash:~/ARPACK$ mv libarpack.a /Applications/Octave.app/Contents/Resources/lib

5. Startup Octave.app and install the desired Octave–package, eg.

  octave-2.9.16:1> pkg install arpack-1.0.2.tar.gz