I made use of the sparsediag 1.1 application part of alps-applications 1.3.4. The maximal interations for the eigenvalues MAX_ITERATIONS can be set in the parameter file. For the calculation of the eigenvectors (correlations) this parameter is not adjustable outside the source code (set to 10). I had to fix this for my purposes. I am sure the way I implemented it is not up to the standards, but it maybe interesting to note neverthless.
Sebastian
Dear Sebastian,
Sure, please send us your patches and I will take a look. For eigenvectors the Lanczos algorithm actually automatically determines the number of iterations needed to get sufficient accuracy.
Matthias
On Apr 22, 2010, at 1:12 PM, Sebastian Huber wrote:
I made use of the sparsediag 1.1 application part of alps-applications 1.3.4. The maximal interations for the eigenvalues MAX_ITERATIONS can be set in the parameter file. For the calculation of the eigenvectors (correlations) this parameter is not adjustable outside the source code (set to 10). I had to fix this for my purposes. I am sure the way I implemented it is not up to the standards, but it maybe interesting to note neverthless.
Sebastian
-- Sebastian Huber Department of Condensed Matter Physics The Weizmann Institute of Science 76100 Rehovot
Web: http://www.weizmann.ac.il/~huber Tel: +972 8 934 4258
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