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out of core solver for large matrices

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amirba
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out of core solver for large matrices

Wed Jan 15, 2020 11:51 am
Hi, I am trying to solve a large FEM problem, with ~120k elements.

I am using Eigen's Cholesky solver with a sparse matrix, and am apparently running out of memory. From what I understand, this is because the calculation is done in-core.

Currently, I switched to an iterative method (conjugate gradient) to solve, but I still prefer the option to use a direct method. Does Eigen have out-of-core direct solvers?

Thanks.


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