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C Wrapper for ARPACK.
Home Page: http://hi.cs.waseda.ac.jp/~esimo/code/ceigs/
License: GNU Lesser General Public License v3.0
This project forked from bobbens/ceigs
C Wrapper for ARPACK.
Home Page: http://hi.cs.waseda.ac.jp/~esimo/code/ceigs/
License: GNU Lesser General Public License v3.0
LICENSE Copyright 2010, 2011 Edgar Simo-Serra This program 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 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. OVERVIEW This is a simple C frontend for ARPACK. This allows easy access to calculating a subset of eigenvectors and eigenvalues of sparse matrices. Specifically it can solve two problems: - Av = vd - Av = Mvd Where A, M are sparse matrices, v is the subset of eigenvectors and d is the diagonal matrix of eigenvalues. DEPENDENCIES 1) libsuitesparse (libsuitesparse-dev) 2) libarpack (libarpack2-dev) On Ubuntu install the following with: # apt-get install libsuitesparse-dev libarpack2-dev INSTALLING To install run: # make install You will have to be root to install it unless you change the path in the Makefile. DOCUMENTATION To generate full documentation use the command: $ make docs Which will generate a pdf containing the full documentation in the directory. CHANGELOG - Version 1.1, January 2012 - Invert the eigenvector/value order to match octave/matlab's eigs(...) function. - Support for EIGS_MODE_I_SHIFTINVERT with default driver backend. - Support for EIGS_MODE_G_SHIFTINVERT with default driver backend. - Added number of Lanczos vectors to use as a parameter. - Added driver that uses UMFPACK backend (default). - Added driver that tries Cholesky factorization, then LU and finally. - Added driver that tries LU factorization then QR. - Added driver that tries QR factorization. - Version 1.0, December 2011 - Initial Revision. - Support for EIGS_MODE_I_REGULAR with default driver backend. - Support for EIGS_MODE_G_REGINVERSE with default driver backend.
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