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A comment on Poisson's Equation. Parent comment

Re:Poisson's Equation by Porygon on Tuesday July 06, 2021 @12:53PM (#27751140)
Conjugate gradient descent with a multigrid preconditioner also works quite well in my experience, especially for larger systems.
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Re:Poisson's Equation by slavik81 on Wednesday July 07, 2021 @04:49AM (#27758856)
I've never worked with multi-grid, but I assume the preconditioner is also based on the Cholesky factorization? Incomplete Cholesky was pretty effective as the preconditioner for the pressure solve in my toy fluid sim.
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