Spectral Galerkin Factorization codes
Paul G. Constantine, David F. Gleich, and Gianluca Iaccarino.
A factorization of the spectral Galerkin system for parameterized matrix equations: derivation and applications. arXiv:, 2010.
These codes are research prototypes and may not work for you.
No promises. See pmpack for codes with more official support.
Download
- pmpack-sisc-20100629.zip (www.cs.purdue.edu) : last updated 2010-06-29
Overview
The package is organized by directory
pmpack- The version of the pmpack codes used in the experiments. It differs cosmetically from the released version.
experiments- The script files that perform our experimental studies.
randomfield- A copy of the randomfield distribution used to compute our sample problem.
Usage
With a recent version of Matlab (2009b/2010a used for development), the best way to use the package is to open Matlab, navigate to the pmpack directory, and then execute the following commands to solve a problem from our earlier study on parameterized matrices.
% insert an example hereIf you want to get more information about how to use the tools, see the pmpack/demo.m script.
| Experiment | Description | Figure |
|---|---|---|
preconditioning/preconditioning.m | Compute data for preconditioning experiment | |
preconditioning/plot_preconditioning.m | Prepare a figure of preconditioning results | Figure 4.2 |
preconditioning/setuptimes.m | Prepare a table of preconditioning timing | Table 4.1 |