AMD Version 2.2, Copyright (c) 2007 by Timothy A.
Davis, Patrick R. Amestoy, and Iain S. Duff. All Rights Reserved.
AMD is available under alternate licences; contact T. Davis for details.
AMD: a set of routines for permuting sparse matrices prior to
factorization. Includes a version in C, a version in Fortran, and a MATLAB
mexFunction.
Requires UFconfig, in the ../UFconfig directory relative to this directory.
Quick start (Unix, or Windows with Cygwin):
To compile, test, and install AMD, you may wish to first configure the
installation by editting the ../UFconfig/UFconfig.mk file. Next, cd to this
directory (AMD) and type "make" (or "make lib" if you do not have MATLAB).
To compile and run a demo program for the Fortran version, type
"make fortran". When done, type "make clean" to remove unused *.o files
(keeps the compiled libraries and demo programs). See the User Guide
(Doc/AMD_UserGuide.pdf), or ../UFconfig/UFconfig.mk for more details.
Quick start (for MATLAB users);
To compile, test, and install the AMD mexFunction, cd to the
AMD/MATLAB directory and type amd_make at the MATLAB prompt.
If you have MATLAB 7.2 or earlier and use "make mex", you must first edit
UFconfig/UFconfig.h to remove the "-largeArrayDims" option from the MEX command
(or just use amd_make.m inside MATLAB).
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AMD License:
Your use or distribution of AMD or any modified version of
AMD implies that you agree to this License.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
USA
Permission is hereby granted to use or copy this program under the
terms of the GNU LGPL, provided that the Copyright, this License,
and the Availability of the original version is retained on all copies.
User documentation of any code that uses this code or any modified
version of this code must cite the Copyright, this License, the
Availability note, and "Used by permission." Permission to modify
the code and to distribute modified code is granted, provided the
Copyright, this License, and the Availability note are retained,
and a notice that the code was modified is included.
Availability:
http://www.cise.ufl.edu/research/sparse/amd
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This is the AMD README file. It is a terse overview of AMD.
Refer to the User Guide (Doc/AMD_UserGuide.pdf) for how to install
and use AMD.
Description:
AMD is a set of routines for pre-ordering sparse matrices prior to Cholesky
or LU factorization, using the approximate minimum degree ordering
algorithm. Written in ANSI/ISO C with a MATLAB interface, and in
Fortran 77.
Authors:
Timothy A. Davis (davis at cise.ufl.edu), University of Florida.
Patrick R. Amestory, ENSEEIHT, Toulouse, France.
Iain S. Duff, Rutherford Appleton Laboratory, UK.
Acknowledgements:
This work was supported by the National Science Foundation, under
grants DMS-9504974, DMS-9803599, and CCR-0203270.
Portions of this work were done while on sabbatical at Stanford University
and Lawrence Berkeley National Laboratory (with funding from the SciDAC
program). I would like to thank Gene Golub, Esmond Ng, and Horst Simon
for making this sabbatical possible.
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Files and directories in the AMD distribution:
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Subdirectories of the AMD directory:
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Doc documentation
Source primary source code
Include include file for use in your code that calls AMD
Demo demo programs. also serves as test of the AMD installation.
MATLAB AMD mexFunction for MATLAB, and supporting m-files
Lib where the compiled C-callable and Fortran-callable
AMD libraries placed.
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Files in the AMD directory:
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Makefile top-level Makefile for GNU make or original make.
Windows users would require Cygwin to use "make"
README.txt this file
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Doc directory: documentation
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ChangeLog change log
License the AMD License
Makefile for creating the documentation
AMD_UserGuide.bib AMD User Guide (references)
AMD_UserGuide.tex AMD User Guide (LaTeX)
AMD_UserGuide.pdf AMD User Guide (PDF)
lesser.txt the GNU LGPL license
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Source directory:
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amd_order.c user-callable, primary AMD ordering routine
amd_control.c user-callable, prints the control parameters
amd_defaults.c user-callable, sets default control parameters
amd_info.c user-callable, prints the statistics from AMD
amd_1.c non-user-callable, construct A+A'
amd_2.c user-callable, primary ordering kernel
(a C version of amd.f and amdbar.f, with
post-ordering added)
amd_aat.c non-user-callable, computes nnz (A+A')
amd_dump.c non-user-callable, debugging routines
amd_postorder.c non-user-callable, postorder
amd_post_tree.c non-user-callable, postorder just one tree
amd_valid.c non-user-callable, verifies a matrix
amd_preprocess.c non-user-callable, computes A', removes duplic
amd.f user-callable Fortran 77 version
amdbar.f user-callable Fortran 77 version
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Include directory:
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amd.h include file for C programs that use AMD
amd_internal.h non-user-callable, include file for AMD
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Demo directory:
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Makefile for GNU make or original make
amd_demo.c C demo program for AMD
amd_demo.out output of amd_demo.c
amd_demo2.c C demo program for AMD, jumbled matrix
amd_demo2.out output of amd_demo2.c
amd_l_demo.c C demo program for AMD (UF_long version)
amd_l_demo.out output of amd_l_demo.c
amd_simple.c simple C demo program for AMD
amd_simple.out output of amd_simple.c
amd_f77demo.f Fortran 77 demo program for AMD
amd_f77demo.out output of amd_f77demo.f
amd_f77simple.c simple Fortran 77 demo program for AMD
amd_f77simple.out output of amd_f77simple.f
amd_f77cross.f Fortran 77 demo, calls the C version of AMD
amd_f77cross.out output of amd_f77cross.f
amd_f77wrapper.c Fortran-callable wrapper for C version of AMD
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MATLAB directory:
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GNUmakefile a nice Makefile, for GNU make
Makefile an ugly Unix Makefile (for older make's)
Contents.m for "help amd2" listing of toolbox contents
amd2.m MATLAB help file for AMD
amd_make.m MATLAB m-file for compiling AMD mexFunction
amd_install.m compile and install the AMD mexFunction
amd_mex.c AMD mexFunction for MATLAB
amd_demo.m MATLAB demo for AMD
amd_demo.m.out diary output of amd_demo.m
can_24.mat input file for AMD demo
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Lib directory: libamd.a and libamdf77.a libraries placed here
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GNUmakefile a nice Makefile, for GNU make
Makefile an ugly Unix Makefile (for older make's)
libamd.def AMD definitions for Windows
..
Demo
Makefile