Open chrhansk opened 3 months ago
This matrix is symmetric but indefinite. It states in the documentation that
In the positive-definite case, a post-processing step sums the absolute values of all the entries in each column and replaces the diagonal with this value.
I don't see this happening in the code though. Is this functionality not implemented yet?
Most likely, the principal author of SPRAL left in a hurry and unfortunately not all functionality was implemented.
I have been trying to generate random matrices according to the documentation using the following driver:
The output of the program is the following:
This matrix is symmetric but indefinite. It states in the documentation that
In the positive-definite case, a post-processing step sums the absolute values of all the entries in each column and replaces the diagonal with this value.
I don't see this happening in the code though. Is this functionality not implemented yet?