Sat Jun 03, 2023 10:38 pm
I am taking a look at the sparse solver concept. Sparse solvers divide the computational process in two: analyzePattern() and factorize().
The "analyzePattern" fase does not depend (in most cases), on the values inside the matrix. It usually deppends only on the NNZ structure.
Now, I would like to set up a sparse linear solver for which I shall keep changing the matrix values without (mostly) changing the non-zero structure. Except that eventually, a non-zero value might be equal to zero. Now, I would like to know if it is okay if I do:
Also, "makeCompressed()" shall not destruct the NNZ structure, right? Even if the value is actually zero.
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